LT1009CMS8 [Linear]
2.5V Reference; 2.5V参考
| 型号： | LT1009CMS8 |
| 厂家： | 
Linear |
| 描述： | 2.5V Reference |
| 文件： | 总8页 (文件大小：120K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1009 Series
2.5V Reference
U
FEATURES
DESCRIPTIO
The LT®1009 is a precision trimmed 2.5V shunt regulator
diodefeaturingamaximuminitialtoleranceofonly±5mV.
The low dynamic impedance and wide operating current
range enhances its versatility. The 0.2% reference toler-
ance is achieved by on-chip trimming which not only
minimizes the initial voltage tolerance but also minimizes
the temperature drift.
■
Maximum Initial Tolerance: 0.2%
■
Guaranteed Temperature Stability
■
Maximum 0.6Ω Dynamic Impedance
Wide Operating Current Range
■
■
Directly Interchangeable with LM136 for Improved
Performance
■
No Adjustments Needed for Minimum Temperature
Coefficient
Even though no adjustments are needed with the LT1009,
athirdterminalallowsthereferencevoltagetobeadjusted
±5% to calibrate out system errors. In many applications,
the LT1009 can be used as a pin-to-pin replacement of the
LM136 and the external trim network eliminated.
■
Available in 8-Lead SO and MSOP Packages and 3-Lead
TO-92 Package
U
APPLICATIO S
Foralowerdrift2.5Vreference,seetheLT1019datasheet.
■
Reference for 5V Systems
■
8-Bit A/D and D/A Reference
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
■
Digital Voltmeters
■
Current Loop Measurement and Control Systems
■
Power Supply Monitor
U
TYPICAL APPLICATION
2.5V Reference
Output Voltage
2.53
5V TO 35V
2.52
3.6k
GUARANTEED
OUTPUT
2.51
2.50
2.49
2.48
2.47
MAXIMUM
10k*
LT1009
TRIM
TYPICAL
GUARANTEED
MINIMUM
*DOES NOT AFFECT
TEMPERATURE COEFFICIENT.
±5% TRIM RANGE
1009 TA01
50
TEMPERATURE (°C)
100 125
–50 –25
0
25
75
1009 TA02
1009fd
1
LT1009 Series
ABSOLUTE AXI U RATI GS
W W U W
(Note 1)
Reverse Current.................................................... 20mA
Forward Current ................................................... 10mA
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
Operating Temperature Range
LT1009/LT1009C .................................. 0°C to 70°C
LT1009I........................................... –40°C to 85°C
LT1009M (OBSOLETE)................... –55°C to 125°C
U W
U
PACKAGE/ORDER I FOR ATIO
BOTTOM VIEW
ORDER PART
ORDER PART
NUMBER
NUMBER
TOP VIEW
+
ADJ
NC
NC
NC
(–)
1
2
3
4
8 (+)
7 NC
6 (+)
5 ADJ
LT1009MH
LT1009CH
LT1009CMS8
–
MS8 PART MARKING
LTQZ
MS8 PACKAGE
8-LEAD PLASTIC MSOP
H PACKAGE
3-LEAD TO-46 METAL CAN
TJMAX = 150°C, θJA = 250°C/ W
TJMAX = 150°C, θJA = 440°C/ W,θJC = 80°C/ W
OBSOLETE PACKAGE
Consider the MS8, S8 or Z Packages for Alternate Source
ORDER PART
ORDER PART
NUMBER
TOP VIEW
BOTTOM VIEW
NUMBER
NC
NC
NC
(–)
1
2
3
4
8
7
6
5
(+)
NC
(+)
ADJ
+
ADJ
–
LT1009S8
LT1009IS8
LT1009CZ
LT1009IZ
S8 PART MARKING
Z PACKAGE
S8 PACKAGE
3-LEAD PLASTIC TO-92
8-LEAD PLASTIC SO
1009
1009I
TJMAX = 100°C, θJA = 160°C/ W
TJMAX = 150°C, θJA = 190°C/ W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
U
AVAILABLE OPTIO S
PACKAGE STYLE
TEMPERATURE
ACCURACY
(%)
COEFFICIENT
(ppm/°C)
TO-46 (H)
OBSOLETE
MSOP-8
(MS8)
SO-8
(S8)
TO-92
(Z)
TEMPERATURE
0°C to 70°C
0.20
0.40
25
25
LT1009CH
LT1009CZ
LT1009CMS8
LT1009S8
–40°C to 85°C
–55°C to 125°C
0.20
0.40
35
35
LT1009IZ
LT10098IS8
0.20
35
LT1009MH
1009fd
2
LT1009 Series
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
LT1009M
MIN TYP MAX
LT1009I
LT1009/LT1009C
SYMBOL PARAMETER
CONDITIONS
T = 25°C, I = 1mA H, Z Pkg
MIN TYP MAX MIN TYP MAX
UNITS
V
Reverse Breakdown
Voltage
2.485 2.500 2.505 2.495 2.500 2.505 2.495 2.500 2.505
2.49 2.50 2.51 2.49 2.50 2.51
V
V
Z
A
R
MS, S Pkg
∆V
R
Reverse Breakdown
Change with Current
400µA ≤ I ≤ 10mA
2.6
3.0
6
10
2.6
3.0
10
12
2.6
3.0
10
12
mV
mV
Z
R
∆I
●
r
Reverse Dynamic
Impedance
I = 1mA
0.2
0.4
0.6
1.0
0.2
0.4
1.0
1.4
0.2
0.4
1.0
1.4
Ω
Ω
Z
R
●
●
Temperature Stability
T
≤ T ≤ T
MAX
15
25
15
1.8
15
4
mV
MIN
A
∆V
Average Temperature 0°C ≤ T ≤ 70°C
15
15
20
25
35
25
ppm/°C
ppm/°C
ppm/°C
Z
A
∆Temp Coefficient (Notes 2, 3) –40°C ≤ T ≤ 85°C
A
–55°C ≤ T ≤ 125°C
25
20
35
A
∆V
Long-Term Stability
T = 25°C ±0.1°C, I = 1mA
A
20
ppm/kHr
Z
R
∆Time
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 3: Average temperature coefficient is defined as the total voltage
change divided by the specified temperature change.
Note 2: Guaranteed by Design.
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Reverse Characteristics
Forward Characteristics
Reverse Voltage Change
–1
–2
–3
–4
–5
10
10
10
10
10
5
4
3
2
1
0
1.2
1.0
0.8
0.6
0.4
0.2
0
T
= 25°C
J
T
= 25°C
J
T
= 125°C
J
T
= –55°C
J
0.5
1.0
1.4
1.8
2.2
2.6
0
4
8
12
16
20
0.001
0.01
0.1
1
10
REVERSE VOLTAGE (V)
REVERSE CURRENT (mA)
FORWARD CURRENT (mA)
1009 G02
1009 G01
1009 G03
1009fd
3
LT1009 Series
TYPICAL PERFOR A CE CHARACTERISTICS
U W
Response Time
Dynamic Impedance
Output Noise Voltage
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
100
10
1
250
200
150
100
50
I
= 1mA
R
I
= 1mA
R
J
–55°C ≤ T ≤ 125°C
OUTPUT
J
T
= 25°C
5k
INPUT
OUTPUT
10
INPUT
4
0
0.1
10
100
1k
FREQUENCY (Hz)
10k
100k
1k
0
1
20
10
10k
100k
100
TIME (µs)
FREQUENCY (Hz)
1009 G04
1009 G06
1009 G05
W
W
SCHE ATIC DIAGRA
+
Q11
Q7
24k 24k
6.6k
Q8
Q7
20pF
30pF
Q10
10k
500Ω
Q9
ADJ
Q2
Q1
30k
6.6k
Q4
Q5
Q6
Q12
Q13
720Ω
Q3
–
1009 SD
1009fd
4
LT1009 Series
U
TYPICAL APPLICATIO S
Wide Supply Range, Adjustable Reference
Low Temperature Coefficient Power Regulator
3.6V TO 40V
LT317A
IN OUT
+
V
OUT
V
V
IN
ADJ
LM334
1.2k
R
–
62Ω
V
375Ω
LT1009
10k
LT1009
1009 TA03
2k
1009 TA04
Switchable ±1.25V Bipolar Reference
5V
5k
5k
5V
–5V
10k
1%
LT1009
OUT
9.76k
1%
500Ω
1009 TA05
5k
–5V
1009fd
5
LT1009 Series
U
PACKAGE DESCRIPTIO
H Package
2-Lead and 3-Lead TO-46 Metal Can
(LTC DWG # 05-08-1340)
0.209 – 0.219
(5.309 – 5.537)
0.178 – 0.195
(4.521 – 4.953)
0.100
(2.540)
TYP
0.085 – 0.105
(2.159 – 2.667)
0.050
(1.270)
TYP
0.050
(1.270)
TYP
0.500
(12.700)
MIN
PIN 1
REFERENCE
FOR 3-LEAD PACKAGE ONLY
PLANE
*
0.025
(0.635)
MAX
45°
0.028 – 0.048
(0.711 – 1.219)
H02/03(TO-46) 1098
0.036 – 0.046
(0.914 – 1.168)
0.016 – 0.021**
(0.406 – 0.533)
DIA
*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND 0.045" BELOW THE REFERENCE PLANE
0.016 – 0.024
**FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS
(0.406 – 0.610)
OBSOLETE PACKAGE
MS8 Package
8-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1660)
0.889 ± 0.127
(.035 ± .005)
5.23
(.206)
MIN
3.20 – 3.45
(.126 – .136)
3.00 ± 0.102
(.118 ± .004)
(NOTE 3)
0.52
(.0205)
REF
0.65
(.0256)
BSC
0.42 ± 0.038
(.0165 ± .0015)
8
7 6
5
TYP
RECOMMENDED SOLDER PAD LAYOUT
3.00 ± 0.102
(.118 ± .004)
(NOTE 4)
4.90 ± 0.152
(.193 ± .006)
DETAIL “A”
0.254
(.010)
0° – 6° TYP
GAUGE PLANE
1
2
3
4
0.53 ± 0.152
(.021 ± .006)
1.10
(.043)
MAX
0.86
(.034)
REF
DETAIL “A”
0.18
(.007)
SEATING
PLANE
0.22 – 0.38
0.127 ± 0.076
(.009 – .015)
(.005 ± .003)
0.65
(.0256)
BSC
TYP
MSOP (MS8) 0204
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
1009fd
6
LT1009 Series
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)
.045 ±.005
NOTE 3
.050 BSC
7
5
8
6
.245
MIN
.160 ±.005
.150 – .157
(3.810 – 3.988)
NOTE 3
.228 – .244
(5.791 – 6.197)
.030 ±.005
TYP
1
3
4
2
RECOMMENDED SOLDER PAD LAYOUT
.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 0303
Z Package
3-Lead Plastic TO-92 (Similar to TO-226)
(Reference LTC DWG # 05-08-1410)
.180 ± .005
(4.572 ± 0.127)
.060 ± .005
(1.524± 0.127)
DIA
.90
(2.286)
NOM
.180 ± .005
(4.572 ± 0.127)
5°
NOM
.500
(12.70)
MIN
.050
(1.270)
MAX
UNCONTROLLED
LEAD DIMENSION
.016 ± .003
.015 ± .002
(0.406 ± 0.076)
(0.381 ± 0.051)
.050
(1.27)
BSC
.098 +.016/–.04
(2.5 +0.4/–0.1)
2 PLCS
Z3 (TO-92) 0801
.060 ± .010
TO-92 TAPE AND REEL
(1.524 ± 0.254)
REFER TO TAPE AND REEL SECTION OF
LTC DATA BOOK FOR ADDITIONAL INFORMATION
.140 ± .010
(3.556 ± 0.127)
3
2
1
10° NOM
1009fd
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.
7
LT1009 Series
U
TYPICAL APPLICATIO
Low Noise 2.5V Buffered Reference
1µF
V
≥ 6V
10k
IN
2
3
7
LT1001C
4
–
1k
6
2.5V
10k
1k
+
+
+
20µF
100k
LT1009
20µF
1009 TA06
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1009fd
LT/LWI/LT 0505 REV D • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
8
●
●
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
© LINEAR TECHNOLOGY CORPORATION 1985
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