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LT1179CN#PBF [Linear]

LT1179 - 17µA Max, Quad, Single Supply, Precision Op Amps; Package: PDIP; Pins: 14; Temperature Range: 0°C to 70°C;
LT1179CN#PBF
型号： LT1179CN#PBF
厂家： Linear    Linear
描述：

LT1179 - 17µA Max, Quad, Single Supply, Precision Op Amps; Package: PDIP; Pins: 14; Temperature Range: 0°C to 70°C

放大器 光电二极管
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LT1178/LT1179  
17µA Max, Dual and Quad,  
Single Supply, Precision Op Amps  
U
FEATURES  
DESCRIPTIO  
The LT®1178 is a micropower dual op amp in the standard  
8-pin configuration; the LT1179 is a micropower quad op  
amp offered in the standard 14-pin packages. Both  
devices are optimized for single supply operation at 5V.  
Specifications are also provided at ±15V supplies.  
■
17µA Max Supply Current per Amplifier  
■
70µV Max Offset Voltage  
■
250pA Max Offset Current  
5nA Max Input Bias Current  
■
■
0.9µVP-P 0.1Hz to 10Hz Voltage Noise  
■
1.5pAP-P 0.1Hz to 10Hz Current Noise  
The extremely low supply current is combined with true  
precision specifications: offset voltage is 30µV, offset  
currentis50pA. Bothoffsetparametershavelowdriftwith  
temperature. The 1.5pAp-p current noise and picoampere  
offset current permit the use of megaohm level source  
resistorswithoutintroducingseriouserrors.Voltagenoise,  
■
0.5µV/°C Offset Voltage Drift  
■
85kHz Gain-Bandwidth Product  
■
0.04V/µs Slew Rate  
Single Supply Operation:  
■
Input Voltage Range Includes Ground  
Output Swings to Ground While Sinking Current  
No Pull Down Resistors are Needed  
Output Sources and Sinks 5mA Load Current  
at 0.9µVp-p, is remarkably low considering the low  
supply current.  
■
Both the LT1178 and LT1179 can be operated from a  
single supply (as low as one lithium cell or two NiCd  
batteries). The input range goes below ground. The  
all-NPN output stage swings to within a few millivolts of  
ground while sinking current—no power consuming pull  
down resistors are needed.  
U
APPLICATIO S  
■
Battery or Solar Powered Systems  
Portable Instrumentation  
Remote Sensor Amplifier  
Satellite Circuitry  
For applications where three times higher supply  
current is acceptable, the micropower LT1077 single,  
LT1078 dual and LT1079 quad are recommended. The  
LT1077/78/79 have significantly higher bandwidth, slew  
rate,lowervoltagenoiseandbetteroutputdrivecapability.  
■
Micropower Sample-and-Hold  
Thermocouple Amplifier  
Micropower Filters  
■
■
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
Self-Buffered, Dual Output, Micropower Reference  
Supply Current vs Temperature  
20  
2
–
V
= ±15V  
18  
16  
S
1
1.2365V  
OUTPUT  
1/2 LT1178  
3
+
4V TO 9V  
8
4
5
6
V
= 5V, 0V  
+
S
7
14  
2.470V  
OUTPUT  
250k*  
1/2 LT1178  
V
= ±1.5V  
S
–
0.1µF  
12  
10  
0.1µF  
LT1004-1.2  
2M  
1M*  
1M*  
–50 –25  
25  
50  
75  
100  
0
* = 0.1% FILM RESISTORS  
TEMPERATURE (°C)  
TOTAL BATTERY CURRENT = 28µA  
OUTPUT ACCURACY = ±0.4% MAX  
TEMPERATURE COEFFICIENT = 20ppm/°C  
LT1178/LT1179 • TA02  
+
LOAD REGULATION = 25ppm/mA, I ≤ 5mA, V ≥ 5V  
LINE REGULATION = 10ppm/V  
L
LT1178/LT1179 • TA01  
11789fb  
1
LT1178/LT1179  
W W  
U W  
ABSOLUTE AXI U RATI GS (Note 1)  
Supply Voltage ...................................................... ±22V Operating Temperature Range  
Differential Input Voltage ....................................... ±30V  
Input Voltage ...............Equal to Positive Supply Voltage  
LT1178I/LT1179I.................................. –40°C to 85°C  
LT1178C/LT1178S/LT1179C/LT1179S .......0°C to 70°C  
Input Voltage ............5V Below Negative Supply Voltage Storage Temperature Range ................ –65°C to 150°C  
Output Short-Circuit Duration.......................... Indefinite Lead Temperature (Soldering, 10 sec.)................. 300°C  
U W  
U
PACKAGE/ORDER I FOR ATIO  
TOP VIEW  
ORDER PART  
ORDER PART  
NUMBER  
ORDER PART  
NUMBER  
TOP VIEW  
+
V
TOP VIEW  
+
V
NUMBER  
OUT A  
–IN A  
+IN A  
1
2
3
4
OUT A  
1
8
7
6
OUT B  
7
8
+IN A  
–IN A  
OUT B  
–IN B  
+IN B  
1
2
3
4
8
7
6
5
-
-
A
A
B
A
+
+
–
LT1178ACH  
LT1178CH  
LT1178ACN8  
LT1178CN8  
LT1178IN8  
LT1178S8  
V
OUT A  
-
+
–IN A  
2
–IN B  
+
+
–
–
5
B
–
+
V
5
+IN B  
–IN B  
V
+
B
-
3
IN A  
+ IN B  
OUT B  
4
V
N PACKAGE  
8-LEAD PDIP  
–
(CASE)  
H PACKAGE  
8-LEAD TO-5 METAL CAN  
PART  
MARKING  
S8 PACKAGE  
8-LEAD PLASTIC SO  
T
= 100°C, θ = 150°C/W  
JMAX  
JA  
J PACKAGE 8-LEAD CERDIP  
T
= 150°C, θ = 200°C/W  
JA  
JMAX  
LT1178ACJ8  
LT1178CJ8  
1178  
OBSOLETE PACKAGE  
Consider the N8 or S8 Package for Alternate Source  
Not Recommended. Use LT1178S8 for  
New Designs.  
TOP VIEW  
ORDER PART  
NUMBER  
ORDER PART  
NUMBER  
1
2
3
4
5
6
7
14 OUT D  
13 –IN D  
OUT A  
–IN A  
+IN A  
TOP VIEW  
TOP VIEW  
16 OUT D  
-
-
1
2
3
4
5
6
7
8
16 NC  
OUT A  
–IN A  
+IN A  
1
2
3
4
5
6
7
8
NC  
NC  
A
D
C
+
+
12 +IN D  
–
LT1179ACN  
LT1179CN  
LT1179IN  
LT1178SW  
LT1179SW  
15  
14  
13  
12  
11  
10  
9
15  
14  
13  
12  
11  
10  
9
–IN D  
+IN D  
NC  
+
11  
V
V
+
OUT A  
–IN A  
+IN A  
V
10 +IN C  
+IN B  
–IN B  
OUT B  
+
B
+
-
+
–
V
V
OUT B  
–IN B  
+IN B  
NC  
-
LT1178  
LT1179  
9
8
–IN C  
+IN B  
–IN B  
OUT B  
NC  
+IN C  
–IN C  
OUT C  
NC  
OUT C  
–
V
N PACKAGE  
14-LEAD PDIP  
= 110°C, θ = 130°C/W  
JA  
NC  
NC  
NC  
T
JMAX  
SW PACKAGE  
SW PACKAGE  
J PACKAGE 14-LEAD CERAMIC DIP  
16-LEAD PLASTIC SO WIDE  
16-LEAD PLASTIC SO WIDE  
LT1179ACJ  
LT1179CJ  
T
= 150°C, θ = 90°C/W  
JA  
T
= 150°C, θ = 90°C/W  
JA  
JMAX  
JMAX  
OBSOLETE PACKAGE  
Consider the N14 Package for Alternate Source  
LT11778/1179 • POI01  
Consult LTC Marketing for parts specified with wider operating temperature ranges. Please note that the LT1178S8 surface mount pinout differs from that  
of the LT1178 standard plastic or ceramic dual-in-line packages. For similiar performance with standard pinout, see the LT2178.  
ELECTRICAL CHARACTERISTICS  
VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, TA = 25°C, unless noted.  
LT1178AC/LT1179AC  
LT1178I/C/S/LT1179I/C/S  
SYMBOL PARAMETER  
CONDITIONS (NOTE 2)  
MIN  
TYP  
MAX  
MIN  
TYP  
MAX  
UNITS  
VOS  
Input Offset Voltage  
LT1178  
LT1179  
LT1178SW  
LT1179SW  
LT1178S8  
30  
35  
70  
100  
40  
40  
80  
90  
60  
120  
150  
450  
600  
180  
µV  
µV  
µV  
µV  
µV  
∆VOS  
∆Time  
Long Term Input Offset  
Voltage Stability  
0.5  
0.6  
µV/Mo  
IOS  
Input Offset Current  
0.05  
0.25  
0.05  
0.35  
nA  
11789fb  
2
LT1178/LT1179  
ELECTRICAL CHARACTERISTICS  
VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, TA = 25°C, unless noted.  
LT1178AC/LT1179AC LT1178I/C/S/LT1179I/C/S  
SYMBOL PARAMETER  
CONDITIONS (NOTE 2)  
MIN  
TYP  
3
MAX  
MIN  
TYP  
3
MAX  
UNITS  
nA  
IB  
Input Bias Current  
5
6
en  
Input Noise Voltage  
0.1Hz to 10Hz (Note 3)  
0.9  
2.0  
0.9  
µVP-P  
Input Noise Voltage Density  
fO = 10Hz (Note 3)  
fO = 1000Hz (Note 3)  
50  
49  
75  
65  
50  
49  
nV/√Hz  
nV/√Hz  
in  
Input Noise Current  
0.1Hz to 10Hz (Note 3)  
1.5  
2.5  
1.5  
pAp-p  
Input Noise Current Density  
fO = 10Hz (Note 3)  
fO = 1000Hz  
0.03  
0.01  
0.07  
0.03  
0.01  
pA/√Hz  
pA/√Hz  
Input Resistance  
Differential Mode  
Common Mode  
(Note 4)  
0.8  
2.0  
12  
0.6  
2.0  
12  
GΩ  
GΩ  
Input Voltage Range  
3.5  
0
3.9  
–0.3  
3.5  
0
3.9  
–0.3  
V
V
CMRR  
PSRR  
AVOL  
Common Mode Rejection Ratio VCM = 0V to 3.5V  
Power Supply Rejection Ratio VS = 2.2V to 12V  
93  
94  
103  
104  
700  
90  
92  
102  
104  
700  
dB  
dB  
Large Signal Voltage Gain  
VO = 0.03V to 4V, No Load  
(Note 4)  
140  
110  
V/mV  
VO = 0.03V to 3.5V, RL = 50k  
80  
200  
70  
200  
V/mV  
Maximum Output Voltage  
Swing  
Output Low, No Load  
Output Low, 2k to GND  
Output Low, ISINK = 100µA  
Output High, No Load  
Output High 2k to GND  
6.5  
0.2  
120  
4.4  
3.8  
9
0.6  
160  
6.5  
0.2  
120  
4.4  
3.8  
9
0.6  
160  
mV  
mV  
mV  
V
4.2  
3.5  
4.2  
3.5  
V
SR  
Slew Rate  
AV = 1, CL = 10pF (Note 4)  
0.013  
0.025  
60  
0.013  
0.025  
60  
V/µs  
GBW  
IS  
Gain Bandwidth Product  
fO ≤ 5kHz  
kHz  
Supply Current  
per Amplifier  
13  
12  
18  
17  
14  
13  
21  
20  
µA  
µA  
VS = ±1.5V, VO = 0V  
∆VIN = 3V, RL = 10k  
(Note 5)  
Channel Separation  
130  
2.0  
130  
2.0  
dB  
V
Minimum Supply Voltage  
2.2  
2.2  
11789fb  
3
LT1178/LT1179  
ELECTRICAL CHARACTERISTICS  
noted. (Note 7)  
The ■ denotes specifications which apply over the full operating  
temperature range of –40°C ≤ TA ≤ 85°C for I grades, 0°C ≤ TA ≤ 70°C for SW grades, VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, unless  
LT1178I/LT1179I  
LT1178SW/LT1179SW  
SYMBOL PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX MIN  
TYP  
MAX UNITS  
VOS  
lnput Offset Voltage  
LT1178  
LT1179  
■
■
80  
80  
315  
345  
120  
130  
650  
800  
µV  
µV  
∆VOS/∆T  
IOS  
Input Offset Voltage Drift  
Input Offset Current  
Input Bias Current  
(Note 6)  
■
■
■
■
0.6  
0.07  
4
3.0  
0.7  
8
0.8  
0.06  
3
4.5  
0.50  
7
µV/°C  
nA  
IB  
nA  
CMRR  
Common Mode Rejection  
Ratio  
VCM = 0.05V to 3.2V I grade  
VCM = 0V to 3.4V S grade  
84  
86  
98  
86  
88  
100  
dB  
PSRR  
AVOL  
Power Supply Rejection  
Ratio  
VS = 3.0V to 12V I grade  
VS = 2.5V to 12V S grade  
■
100  
102  
dB  
Large-Signal Voltage Gain  
VO = 0.05V to 4V, No Load (Note 4)  
VO = 0.05V to 3.5V, RL = 50k  
■
■
55  
35  
350  
130  
80  
45  
500  
160  
V/mV  
V/mV  
Maximum Output Voltage  
Swing  
Output Low, No Load  
Output Low, ISINK = 100µA  
Output High, No Load  
Output High, 2k to GND  
■
■
■
■
9
13  
220  
8
11  
190  
mV  
mV  
V
160  
4.2  
3.7  
140  
4.3  
3.8  
3.9  
3.0  
4.1  
3.3  
V
IS  
Supply Current per Amplifier  
■
15  
27  
15  
24  
µA  
The ■ denotes specifications which apply over the full operating temperature range of 0°C ≤ TA ≤ 70°C, VS = 5V, 0V, VCM = 0.1V,  
VO = 1.4V, unless noted.  
LT1178AC/LT1179AC  
LT1178C/S8/LT1179C  
SYMBOL PARAMETER  
lnput Offset Voltage  
CONDITIONS  
MIN  
TYP  
MAX  
MIN  
TYP  
MAX UNITS  
V
LT1178  
LT1178S8  
LT1179  
■
■
■
50  
170  
65  
85  
70  
250  
350  
290  
µV  
µV  
µV  
OS  
60  
200  
2.2  
∆V /∆T Input Offset Voltage Drift  
OS  
(Note 6)  
LT1178S8  
■
■
0.5  
0.6  
0.6  
3.0  
3.5  
µV/°C  
µV/°C  
I
I
Input Offset Current  
■
■
■
■
0.06  
3
0.35  
6
0.06  
3
0.50  
7
nA  
nA  
dB  
dB  
OS  
B
Input Bias Current  
CMRR  
PSRR  
Common Mode Rejection Ratio  
Power Supply Rejection Ratio  
Large-Signal Voltage Gain  
V
= 0V to 3.4V  
90  
90  
101  
102  
86  
88  
100  
102  
CM  
V = 2.5V to 12V  
S
A
V = 0.05V to 4V, No Load (Note 4)  
V = 0.05V to 3.5V, R = 50k  
■
■
105  
55  
500  
160  
80  
45  
500  
160  
V/mV  
V/mV  
VOL  
O
O
L
Maximum Output Voltage  
Swing  
Output Low, No Load  
■
■
■
■
8
11  
190  
8
11  
190  
mV  
mV  
V
Output Low, I  
= 100µA  
140  
4.3  
3.8  
140  
4.3  
3.8  
SINK  
Output High, No Load  
Output High, 2k to GND  
4.1  
3.3  
4.1  
3.3  
V
I
Supply Current per Amplifier  
■
14  
21  
15  
24  
µA  
S
11789fb  
4
LT1178/LT1179  
ELECTRICAL CHARACTERISTICS V = ±15V, T = 25°C, unless noted.  
S
A
LT1178AC/LT1179AC  
LT1178I/C/S/LT1179I/C/S  
SYMBOL PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
MIN  
TYP  
MAX  
UNITS  
V
Input Offset Voltage  
80  
350  
100  
150  
160  
120  
480  
900  
1050  
350  
µV  
µV  
µV  
µV  
OS  
LT1178SW  
LT1179SW  
LT1178S8  
I
I
lnput Offset Current  
Input Bias Current  
Input Voltage Range  
0.05  
3
0.25  
5
0.05  
3
0.35  
6
nA  
nA  
OS  
B
13.5  
–15.0  
13.9  
–15.3  
13.5  
–15.0  
13.9  
–15.3  
V
V
CMRR  
PSRR  
Common Mode Rejection Ratio  
Power Supply Rejection Ratio  
Large-Signal Voltage Gain  
V
= 13.5V, –15V  
97  
96  
106  
112  
94  
94  
106  
112  
dB  
dB  
CM  
V = 5V, 0V to ±18V  
S
A
V = ±10V, R = 50k  
V = ±10V, No Load  
300  
600  
1200  
2500  
250  
400  
1000  
2500  
V/mV  
V/mV  
VOL  
O
L
O
V
Maximum Output Voltage Swing  
R = 50k  
R = 2k  
L
±13.0  
±11.0  
±14.2  
±12.7  
±13.0  
±11.0  
±14.2  
±12.7  
V
V
OUT  
L
SR  
Slew Rate  
A = 1  
0.02  
0.04  
85  
0.02  
0.04  
85  
V/µs  
kHz  
µA  
V
GBW  
Gain Bandwidth Product  
Supply Current per Amplifier  
f ≤ 5kHz  
O
I
16  
21  
17  
25  
S
The ■ denotes specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 85°C for I grades,  
0°C ≤ TA ≤ 70°C for SW grades, VS = ±15V, unless noted.  
LT1178I/LT1179I  
LT1178SW/LT1179SW  
SYMBOL PARAMETER  
lnput Offset Voltage  
CONDITIONS  
MIN  
TYP  
MAX  
MIN  
TYP  
MAX UNITS  
V
LT1178  
LT1179  
■
■
130  
130  
740  
740  
190  
200  
1150  
1300  
µV  
µV  
OS  
∆V /∆T Input Offset Voltage Drift  
(Note 6)  
■
■
■
■
■
■
■
■
0.7  
0.07  
4
4.0  
0.7  
8
0.9  
0.06  
3
5.5  
0.35  
7
µV/°C  
nA  
OS  
I
I
Input Offset Current  
OS  
B
Input Bias Current  
nA  
A
Large-Signal Voltage Gain  
Common Mode Rejection Ratio  
Power Supply Rejection Ratio  
Maximum Output Voltage Swing  
Supply Current per Amplifier  
V = ±10V, R = 50k  
O
100  
88  
500  
103  
109  
±13.5  
19  
150  
91  
750  
104  
110  
V/mV  
dB  
VOL  
L
CMRR  
PSRR  
V
= 13V, –14.9V  
CM  
V = 5V, 0V to ±18V  
S
88  
91  
dB  
R = 5k  
L
±11.0  
±11.0 ±13.5  
V
I
30  
18  
28  
µA  
S
11789fb  
5
LT1178/LT1179  
ELECTRICAL CHARACTERISTICS  
The ■ denotes specifications which apply over the full operating tempera-  
ture range of 0°C ≤ TA ≤ 70°C, VS = ±15V, unless noted.  
LT1178AC/LT1179AC  
LT1178C/S8/LT1179C  
SYMBOL PARAMETER  
lnput Offset Voltage  
CONDITIONS  
MIN  
TYP  
MAX  
MIN  
TYP  
MAX UNITS  
V
■
■
100  
480  
130  
150  
660  
540  
µV  
µV  
OS  
LT1178S8  
∆V /∆T Input Offset Voltage Drift  
OS  
(Note 6)  
LT1178S8  
■
■
0.6  
2.8  
0.7  
0.7  
4.0  
3.8  
µV/°C  
µV/°C  
I
I
Input Offset Current  
■
■
■
■
■
■
■
0.06  
3
0.35  
6
0.06  
3
0.35  
7
nA  
nA  
OS  
B
Input Bias Current  
A
Large-Signal Voltage Gain  
Common Mode Rejection Ratio  
Power Supply Rejection Ratio  
Maximum Output Voltage Swing  
Supply Current per Amplifier  
V = ±10V, R = 50k  
200  
94  
800  
104  
110  
±13.6  
17  
150  
91  
750  
104  
110  
V/mV  
dB  
VOL  
O
L
CMRR  
PSRR  
V
= 13V, –15V  
CM  
V = 5V, 0V to ±18V  
S
93  
91  
dB  
R = 5k  
L
±11.0  
±11.0 ±13.6  
V
I
24  
18  
28  
µA  
S
Note 1: Absolute Maximum Ratings are those values beyond which the life  
Note 4: This parameter is guaranteed by design and is not tested.  
of a device may be impaired.  
Note 5: Power supply rejection ratio is measured at the minimum supply  
voltage. The op amps actually work at 1.7V supply but with a typical offset  
skew of –300µV.  
Note 6: This parameter is not 100% tested.  
Note 7: During testing at –40°C, the 5V power supply turn on-time is less  
Note 2: Typical parameters are defined as the 60% yield of parameter  
distributions of individual amplifiers; (i.e., out of 100 LT1179s, or 100  
LT1178s, typically 240 op amps, or 120, will be better than the indicated  
specification).  
Note 3: This parameter is tested on a sample basis only. All noise  
than 0.5 seconds.  
parameters are tested with V = ±2.5, V = 0V.  
S
O
U W  
TYPICAL PERFOR A CE CHARACTERISTICS  
Input Offset Voltage Distribution  
N, J, H Package  
Input Offset Voltage Distribution  
Surface Mount Package  
Minimum Supply Voltage  
100  
0
2000  
1500  
1000  
500  
800  
600  
400  
200  
–
V
= 0V  
980 LT1178N8  
190 LT1178J8  
190 LT1178H8  
702 LT1179N  
144 LT1179J  
6104 OP AMPS  
TESTED  
V
T
= 5V, 0V  
= 25°C  
V
T
= 5V, 0V  
= 25°C  
S
A
S
A
262 LT1178SW  
342 LT1179SW  
1892 OP AMPS  
TESTED  
85°C  
–100  
–200  
25°C  
–40°C  
–300  
–400  
–500  
NON-FUNCTIONAL  
0
0
2
3
0
1
–150 –100 –50  
0
50  
100  
150  
–600 –400 –200  
0
200  
400  
600  
OFFSET VOLTAGE (µV)  
OFFSET VOLTAGE (µV)  
POSITIVE SUPPLY VOLTAGE (V)  
LT1178/LT1179 • TPC03  
LT1178/LT1179 • TPC01  
LT1178/LT1179 • TPC02  
11789fb  
6
LT1178/LT1179  
U W  
TYPICAL PERFOR A CE CHARACTERISTICS  
Input Bias and Offset Currents vs  
Temperature  
Output Saturation vs Temperature  
vs Sink Current  
Short-Circuit Current  
100  
75  
1000  
100  
10  
20  
10  
V
V
= 5V, 0V  
V
= 5V, 0V  
V = 5V, 0V  
S
S
S
I
I
= 1mA  
SINK  
= ±15V  
S
= 100µA  
SINK  
I
OS  
50  
V
= ±2.5V  
= ±2.5V  
S
S
0
I
= 1µA  
SINK  
25  
V
–2.5  
–3.0  
–3.5  
–4.0  
NO LOAD  
–10  
–20  
–30  
I
B
10k TO GROUND  
1
V
= ±15V  
2k TO GROUND  
S
0.1  
50  
TEMPERATURE (°C)  
100  
–50 –25  
0
25  
75  
50  
TEMPERATURE (°C)  
100  
–50  
–25  
0
25  
75  
0
1
2
TIME FROM OUTPUT SHORT TO GROUND (MINUTES)  
LT1178/LT1179 • TPC05  
LT1178/LT1179 • TPC04  
LT1178/LT1179 • TPC06  
0.1Hz to 10Hz Noise  
0.01Hz to 10Hz Noise  
Noise Spectrum  
1000  
300  
100  
30  
V
= ±2.5V, T = 25°C  
A
V
= ±2.5V, T = 25°C  
V
T
= ±2.5V  
= 25°C  
S
S
A
S
A
CURRENT  
NOISE  
CHANNEL A  
CHANNEL A  
VOLTAGE NOISE  
1/f CORNER  
0.5Hz  
CHANNEL B  
CHANNEL B  
60  
10  
0.1  
1
10  
FREQUENCY (Hz)  
100  
1k  
8
10  
80  
100  
0
2
4
6
12  
0
20  
40  
120  
TIME (SECONDS)  
TIME (SECONDS)  
LT1178/LT1179 • TPC09  
LT1178/LT1179 • TPC07  
LT1178/LT1179 • TPC08  
Voltage Gain vs Frequency  
Gain, Phase vs Frequency  
Voltage Gain vs Load Resistance  
10M  
30  
20  
140  
120  
100  
80  
80  
T
= 25°C  
T
= 25°C  
A
A
NO LOAD  
100  
120  
140  
160  
180  
200  
220  
240  
V
= ±15V, T = 25°C  
S
S
A
PHASE  
±15V  
1M  
100k  
10k  
10  
V
= ±15V  
60  
S
PHASE  
5V, 0V  
V
= 5V, 0V, T = 25°C  
A
40  
V
= 5V, 0V  
S
V
= 5V, 0V, T = 85°C  
GAIN  
5V, 0V  
S
A
0
20  
GAIN  
±15V  
0
–10  
–20  
10 100  
0.001 0.01 0.1  
1
1k 10k 100k 1M  
10k  
100k  
1M  
10k  
100k  
1M  
10M  
FREQUENCY (Hz)  
LOAD RESISTANCE TO GROUND (Ω)  
FREQUENCY (Hz)  
LT1178/LT1179 • TPC10  
LT1178/LT1179 • TPC11  
LT1178/LT1179 • TPC12  
11789fb  
7
LT1178/LT1179  
U W  
TYPICAL PERFOR A CE CHARACTERISTICS  
Large-Signal Transient Response  
VS = ±15V  
Large-Signal Transient Response  
VS = 5V, 0V  
Capacitive Load Handling  
120  
100  
80  
V
= 5V, 0V  
S
A
= 1  
V
60  
40  
20  
AV = 1  
500µs/DIV  
AV = 1  
CL = 12pF  
100µs/DIV  
A
= 5  
V
A
= 10  
C
L = 12pF  
V
INPUT PULSE = 0V TO 3.8V  
0
10  
100  
1000  
10,000  
CAPACITIVE LOAD (pF)  
LT1178/LT1179 • TPC13  
Small-Signal Transient Response  
VS = ±2.5V  
Small-Signal Transient Response  
VS = ±15V  
Small-Signal Transient Response  
VS = 5V, 0V  
AV = 1  
CL = 12pF  
20µs/DIV  
AV = 1  
CL = 12pF  
INPUT 50 TO 150mV  
20µs/DIV  
AV = 1  
CL = 12pF  
20µs/DIV  
Common Mode Rejection Ratio vs  
Frequency  
Power Supply Rejection Ratio vs  
Frequency  
Closed Loop Output Impedance  
120  
100  
80  
60  
40  
20  
0
120  
100  
T
= 25°C  
A
10k  
V
= ±15V  
S
A
= 100  
= 10  
CL  
1k  
100  
10  
80  
60  
POSITIVE  
SUPPLY  
V
= 5V, 0V  
S
A
= 1  
CL  
A
CL  
NEGATIVE  
SUPPLY  
40  
20  
0
V
I
= 5V, 0V  
= 0  
= 25°C  
S
L
V
T
= ±2.5V + 1Vp-p SINE WAVE  
= 25°C  
S
A
1
T
A
0.1  
10  
100  
1k  
10k 100k  
10  
1
100  
1k  
FREQUENCY (Hz)  
10k  
100k  
1
10  
100  
1k  
10k  
100k  
FREQUENCY (Hz)  
FREQUENCY (Hz)  
LT1178/LT1179 • TPC19  
LT1188/LT1189 • TPC20  
LT1178/1179 • TPC21  
11789fb  
8
LT1178/LT1179  
W U U  
APPLICATIO S I FOR ATIO  
U
Please see the LT1078/LT1079 data sheet for applications  
information.Allcommentsrelatingtospecifications,single  
supply operation and phase reversal protection are  
directly applicable to the LT1178/LT1179.  
Micropower 100Hz to 1MHz V-to-F Converter  
7V TO 10V  
100k  
1.5M  
V
IN  
0V TO 5V  
10k  
220k*  
100Hz  
TRIM  
240k  
TYPICAL  
+
–
1N4148  
100Ω  
1µF  
A2  
1/2 LT1178  
50k  
1MHz  
TRIM  
+
+
LT1004–2.5  
NC  
1µF  
12k  
Q7  
2N3904  
+
47k  
A1  
Q8  
2N3906  
1/2 LT1178  
V
DD  
–
0.01µF  
2k  
CLK  
RESET  
CD4024  
Q7  
74C14  
10M  
V
SS  
0.33µF  
3pF  
F
OUT  
2µF  
LTC201  
+
V
IN1  
LINEARITY IS 0.02%  
QUIESCENT CURRENT IS 90µA  
SUPPLY CURRENT IS 360µA AT 1MHz  
DRIFT ≈ 50ppm/°C  
*TRW MTR/5 + 120ppm/°C  
500pF  
POLYSTYRENE  
S1  
S3  
IN3  
IN4  
D1  
D2  
D3  
D4  
S4  
0.022µF  
S2  
–
V
IN2  
GND  
LT1178/LT1179 • AI01  
W
W
1/2 LT1178  
1/4 LT1179  
SI PLIFIED SCHE ATIC  
+
V
10k  
10k  
2.2k  
5.6k  
1.3k  
6.4k  
33k  
11.5k  
12.5k  
Q54  
1
Q53  
2
1
Q6  
Q16  
Q14  
Q24  
Q15  
Q32  
Q5  
Q52  
Q47  
Q37  
Q46  
–
Q29  
Q3  
Q30  
3
C1  
50pF  
V
1
Q4  
3k  
Q40  
Q25  
8.6k  
Q35  
Q41  
+
V
Q12  
4
C4  
4pF  
Q26  
2.9k  
30Ω  
Q11  
Q44  
C5  
2.5pF  
1
Q27  
Q1  
Q21  
600Ω  
600Ω  
150k  
OUT  
IN  
IN  
–
+
Q31  
J1  
C3  
40pF  
Q28  
Q36  
Q18  
Q33  
Q2  
Q22  
Q48  
+
V
Q19  
Q42  
Q49  
Q50  
Q39  
Q23  
Q9  
Q10 Q17  
+
9.1k  
V
700k  
Q7  
Q8  
Q45  
Q51  
Q55  
C2  
175pF  
Q20  
2A  
10k  
Q43  
Q34  
Q38  
A
2A  
3k  
5.35k  
6.2k  
6.2k  
30Ω  
700k  
–
V
11789fb  
9
LT1178/LT1179  
U
PACKAGE DESCRIPTIO  
H Package  
8-Lead TO-5 Metal Can (.230 Inch PCD)  
(Reference LTC DWG # 05-08-1321)  
.016 – .021**  
(0.406 – 0.533)  
.027 – .045  
(0.686 – 1.143)  
.335 – .370  
(8.509 – 9.398)  
DIA  
45°TYP  
PIN 1  
.028 – .034  
(0.711 – 0.864)  
.305 – .335  
(7.747 – 8.509)  
.040  
.230  
.050  
(1.270)  
MAX  
(5.842)  
(1.016)  
MAX  
.165 – .185  
(4.191 – 4.699)  
TYP  
REFERENCE  
PLANE  
.110 – .160  
SEATING  
PLANE  
GAUGE  
PLANE  
(2.794 – 4.064)  
INSULATING  
STANDOFF  
.500 – .750  
(12.700 – 19.050)  
.010 – .045*  
(0.254 – 1.143)  
*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE  
AND THE SEATING PLANE  
.016 – .024  
**FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS  
H8 (TO-5) 0.230 PCD 0801  
(0.406 – 0.610)  
J8 Package  
8-Lead CERDIP (Narrow .300 Inch, Hermetic)  
(Reference LTC DWG # 05-08-1110)  
.405  
(10.287)  
MAX  
.200  
(5.080)  
MAX  
.005  
(0.127)  
MIN  
.300 BSC  
(7.62 BSC)  
CORNER LEADS OPTION  
(4 PLCS)  
6
5
4
8
7
.015 – .060  
(0.381 – 1.524)  
.023 – .045  
(0.584 – 1.143)  
HALF LEAD  
OPTION  
.025  
(0.635)  
RAD TYP  
.220 – .310  
(5.588 – 7.874)  
.008 – .018  
(0.203 – 0.457)  
0° – 15°  
.045 – .068  
(1.143 – 1.650)  
FULL LEAD  
OPTION  
1
2
3
.045 – .065  
(1.143 – 1.651)  
.125  
3.175  
MIN  
NOTE: LEAD DIMENSIONS APPLY TO SOLDER  
DIP/PLATE OR TIN PLATE LEADS  
.014 – .026  
(0.360 – 0.660)  
.100  
(2.54)  
BSC  
J8 0801  
J Package  
14-Lead CERDIP (Narrow .300 Inch, Hermetic)  
(Reference LTC DWG # 05-08-1110)  
.200  
(5.080)  
MAX  
.300 BSC  
(7.62 BSC)  
.785  
(19.939)  
MAX  
.015 – .060  
(0.381 – 1.524)  
.005  
(0.127)  
MIN  
14  
13  
12  
11  
10  
9
8
.008 – .018  
(0.203 – 0.457)  
0° – 15°  
.220 – .310  
(5.588 – 7.874)  
.025  
(0.635)  
RAD TYP  
.045 – .065  
(1.143 – 1.651)  
.100  
(2.54)  
BSC  
.125  
(3.175)  
MIN  
NOTE: LEAD DIMENSIONS APPLY  
TO SOLDER DIP/PLATE OR TIN  
PLATE LEADS  
.014 – .026  
2
3
4
5
6
1
7
(0.360 – 0.660)  
J14 0801  
OBSOLETE PACKAGES  
11789fb  
10  
LT1178/LT1179  
U
PACKAGE DESCRIPTIO  
N8 Package  
8-Lead PDIP (Narrow .300 Inch)  
(Reference LTC DWG # 05-08-1510)  
.400*  
(10.160)  
MAX  
8
7
6
5
4
.255 ± .015*  
(6.477 ± 0.381)  
1
2
3
.130 ± .005  
.300 – .325  
.045 – .065  
(3.302 ± 0.127)  
(1.143 – 1.651)  
(7.620 – 8.255)  
.065  
(1.651)  
TYP  
.008 – .015  
(0.203 – 0.381)  
.120  
.020  
(0.508)  
MIN  
(3.048)  
MIN  
+.035  
.325  
–.015  
.018 ± .003  
(0.457 ± 0.076)  
.100  
(2.54)  
BSC  
+0.889  
8.255  
(
)
N8 1002  
–0.381  
NOTE:  
INCHES  
1. DIMENSIONS ARE  
MILLIMETERS  
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.  
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)  
N Package  
14-Lead PDIP (Narrow .300 Inch)  
(Reference LTC DWG # 05-08-1510)  
.770*  
(19.558)  
MAX  
14  
13  
12  
11  
10  
9
8
7
.255 ± .015*  
(6.477 ± 0.381)  
1
2
3
5
6
4
.300 – .325  
(7.620 – 8.255)  
.045 – .065  
(1.143 – 1.651)  
.130 ± .005  
(3.302 ± 0.127)  
.020  
(0.508)  
MIN  
.065  
(1.651)  
TYP  
.008 – .015  
(0.203 – 0.381)  
+.035  
.325  
.005  
(0.125)  
MIN  
–.015  
.120  
(3.048)  
MIN  
.018 ± .003  
(0.457 ± 0.076)  
.100  
(2.54)  
BSC  
+0.889  
8.255  
(
)
–0.381  
NOTE:  
INCHES  
MILLIMETERS  
N14 1002  
1. DIMENSIONS ARE  
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.  
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)  
11789fb  
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.  
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-  
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.  
11  
LT1178/LT1179  
U
PACKAGE DESCRIPTIO  
S8 Package  
8-Lead Plastic Small Outline (Narrow .150 Inch)  
(Reference LTC DWG # 05-08-1610)  
.189 – .197  
(4.801 – 5.004)  
NOTE 3  
.045 ±.005  
.050 BSC  
7
5
8
6
N
N
.245  
MIN  
.160 ±.005  
.150 – .157  
(3.810 – 3.988)  
NOTE 3  
.228 – .244  
(5.791 – 6.197)  
1
2
3
N/2  
N/2  
4
.030 ±.005  
TYP  
RECOMMENDED SOLDER PAD LAYOUT  
1
2
3
.010 – .020  
(0.254 – 0.508)  
× 45°  
.053 – .069  
(1.346 – 1.752)  
.004 – .010  
(0.101 – 0.254)  
.008 – .010  
(0.203 – 0.254)  
0°– 8° TYP  
.016 – .050  
(0.406 – 1.270)  
.050  
(1.270)  
BSC  
.014 – .019  
(0.355 – 0.483)  
TYP  
NOTE:  
INCHES  
1. DIMENSIONS IN  
(MILLIMETERS)  
2. DRAWING NOT TO SCALE  
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.  
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)  
SO8 0502  
SW Package  
16-Lead Plastic Small Outline (Wide .300 Inch)  
(Reference LTC DWG # 05-08-1620)  
.050 BSC .045 ±.005  
.030 ±.005  
.398 – .413  
(10.109 – 10.490)  
NOTE 4  
TYP  
15 14  
12  
10  
9
N
16  
N
13  
11  
.325 ±.005  
.420  
MIN  
.394 – .419  
(10.007 – 10.643)  
NOTE 3  
N/2  
8
1
2
3
N/2  
RECOMMENDED SOLDER PAD LAYOUT  
2
3
5
7
1
4
6
.291 – .299  
(7.391 – 7.595)  
NOTE 4  
.037 – .045  
(0.940 – 1.143)  
.093 – .104  
(2.362 – 2.642)  
.010 – .029  
× 45°  
(0.254 – 0.737)  
.005  
(0.127)  
RAD MIN  
0° – 8° TYP  
.050  
(1.270)  
BSC  
.004 – .012  
.009 – .013  
(0.102 – 0.305)  
NOTE 3  
(0.229 – 0.330)  
.014 – .019  
.016 – .050  
(0.356 – 0.482)  
TYP  
(0.406 – 1.270)  
NOTE:  
1. DIMENSIONS IN  
INCHES  
(MILLIMETERS)  
S16 (WIDE) 0502  
2. DRAWING NOT TO SCALE  
3. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.  
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS  
4. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.  
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)  
11789fb  
LW/TP 1102 1K REV B • PRINTED IN USA  
12 LinearTechnology Corporation  
1630 McCarthy Blvd., Milpitas, CA 95035-7417  
■
■
(408) 432-1900 FAX: (408) 434-0507 www.linear.com  
LINEAR TECHNOLOGY CORPORATION 1991  

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SI9122E

 500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification Drivers

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VISHAY
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