LT1716HS5#PBF [Linear]
LT1716 - SOT-23, 44V, Over-The-Top, Micropower, Precision Rail-to-Rail Comparator; Package: SOT; Pins: 5; Temperature Range: -40°C to 125°C;
| 型号： | LT1716HS5#PBF |
| 厂家： | 
Linear |
| 描述： | LT1716 - SOT-23, 44V, Over-The-Top, Micropower, Precision Rail-to-Rail Comparator; Package: SOT; Pins: 5; Temperature Range: -40°C to 125°C 放大器 光电二极管 |
| 文件： | 总12页 (文件大小：246K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1716
SOT-23, 44V, Over-the-Top,
Micropower, Precision
Rail-to-Rail Comparator
FEATURES
DESCRIPTION
The LT®1716 comparator operates on any total power
supply voltage between 2.7V and 44V drawing 35μA of
quiescent current. The LT1716 has a unique input stage
n
Operates from 2.7V to 44V
Over-The-Top®: Input Common Mode Range
n
–
+
Extends 44V Above V , Independent of V
–
+
n
n
n
n
n
n
n
n
Micropower: 35μA I
Offset Voltage: 1.5mV Max
that can be taken 44V above V , independent of V supply.
(Built-in resistors protect the inputs for faults below the
negative supply of up to 5V.) The inputs can withstand
44V both differential and common mode.
Q
–
Valid Output with Either Input 5V Below V
Rail-to-Rail Output Swing
+
Output Can Drive Loads Above V
The output stage includes a class “B” pull-up current
source, eliminating the need for an external resistive
pull-up and saving power. Output voltage swings to within
35mV of the negative supply and 55mV of the positive
supply, which makes the comparator a good choice for
low voltage single supply operation. The output stage is
also designed to drive loads connected to a higher supply
than the LT1716 supply, the same as an open collector
output stage.
Internal Pull-Up Current
–40°C to 125°C Operating Temperature Range
Low Profile (1mm) SOT-23 (ThinSOT™) Package
APPLICATIONS
n
Power Supply Monitors
n
Relay/Lamp Driver
n
Oscillators
n
The LT1716 is available in a SOT-23 5-lead package.
L, LT, LTC, LTM, Over-The-Top, Linear Technology and the Linear logo are registered
trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology
Corporation. All other trademarks are the property of their respective owners.
Peak Detector
n
Level Shifting
TYPICAL APPLICATION
Lamp Monitor
Input Bias Current vs Input Bias Voltage
12μ
V
= 5V, 0V
INPUT
S
5V TO 44V
3V
0.1μF
8μ
4μ
1M
+IN = 10V
INPUT
ABOVE
SUPPLY
BELOW
6n
LAMP
ON/OFF
CMPD6001
SUPPLY
100k
5k
3n
5
4
–
0
R
+IN = 2V
+IN = 2V
1
S
LT1716
LAMP GOOD
–3n
0.15Ω
1W
3
–6n
+
2
–100m
–0.5m
–1m
–1.5m
0.25A TO 2.5A
0.04
1716 TA01
R
≥
S
I
L
–10 –5
0
5
–
10
(V)
15
20
45
V
IN
1716 TA02
1716fa
1
LT1716
ABSOLUTE MAXIMUM RATINGS
PIN CONFIGURATION
(Note 1)
TOP VIEW
Supply Voltage (V+ to V–).........................................44V
Differential Input Voltage ..........................................44V
Input Voltage.....................................................44V, –5V
Output Short-Circuit Duration (Note 2)............ Indefinite
Operating Temperature Range (Note 3)
LT1716C/LT1716I ................................ –40°C to 85°C
LT1716H............................................ –40°C to 125°C
Specified Temperature Range (Note 4)
+
OUT 1
–
5 V
V
2
+
–
+IN 3
4 –IN
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C, θ = 250°C/W
JA
LT1716C/LT1716I ................................ –40°C to 85°C
LT1716H............................................ –40°C to 125°C
Maximum Junction Temperature .......................... 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)...................300°C
ORDER INFORMATION
LEAD FREE FINISH
LT1716CS5#PBF
LT1716IS5#PBF
LT1716HS5#PBF
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
SPECIFIED TEMPERATURE RANGE
–40°C to 85°C
LT1716CS5#TRPBF
LT1716IS5#TRPBF
LT1716HS5#TRPBF
LTYD
LTYD
LTYD
–40°C to 85°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range of –40°C ≤ TA ≤ 85°C, otherwise specifications are at TA = 25°C. Single supply operation V+ = 5V, V– = 0V;
VCM = V+/2 unless otherwise noted. (Note 4)
LTC1716C/LT1716I
SYMBOL
PARAMETER
CONDITIONS
0.5V < V < (V – 1V)
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
300
1600
2100
2500
μV
μV
μV
CM
CC
l
l
0°C < T < 70°C
A
–40°C < T < 85°C
A
l
l
Input Offset Voltage Drift (Note 5)
Input Offset Current
0°C < T < 70°C
2
2
3
μV/°C
μV/°C
A
–40°C < T < 85°C
A
+
l
l
l
I
I
V
V
V
= V /2
= 0V
= 44V
15
1.3
0.9
50
75
nA
μA
μA
nA
nA
OS
CM
CM
CM
+
Input Bias Current
V
= V /2
20
35
2
3
6
1
B
CM
l
+
V = 0V, V = 44V
nA
μA
CM
l
l
l
V
CM
V
CM
V
CM
= 0V
13
9
1.4
= 44V
= –5V
μA
mA
l
Input Voltage Range (Note 7)
Common Mode Rejection Ratio
0.5
89
81
44
V
dB
dB
+
l
l
CMRR
0.5V ≤ V < (V – 1V)
110
110
CM
0.5V ≤ V < 44V (Note 6)
CM
1716fa
2
LT1716
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range of –40°C ≤ TA ≤ 85°C, otherwise specifications are at TA = 25°C. Single supply operation V+ = 5V, V– = 0V;
VCM = V+/2 unless otherwise noted. (Note 4)
LTC1716C/LT1716I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
110
2.4
MAX
UNITS
dB
V
V/mV
V/mV
–
+
l
l
PSRR
Power Supply Rejection Ratio
Minimum Operating Supply Voltage
Large-Signal Voltage Gain
V = 0V, V = 1.5V; 2.7V < V < 36V
95
CM
2.7
A
VOL
R = 1k; 1V < V
L
< 4V
200
100
500
OUT
l
l
l
+
I
S
Supply Current
V = 3V, R = Open, V = High
35
35
40
50
65
55
75
60
85
μA
μA
μA
μA
μA
μA
mA
μA
L
O
+
V = 5V, R = Open, V = High
L
O
+
V = 12V, R = Open, V = High
L
O
l
l
l
–
+
I
I
Output Sink Current (Note 2)
Output Source Current
V
V
> 30mV
= 5mV, V
10
60
20
85
SC
SC
OVERDRIVE
= 1V
OVERDRIVE
OUT
l
l
l
l
V
Output Voltage Swing Low
I
I
I
I
= 0mA, V = –10mV
OVERDRIVE
20
75
200
550
35
mV
mV
mV
mV
OL
SINK
SINK
SINK
SINK
–
(Referred to V )
= 0.1mA
= 1mA
= 5mA
110
300
900
l
l
V
OH
Output Voltage Swing High
I
I
= 0μA, V = 10mV
OVERDRIVE
= 10μA
30
130
55
185
mV
mV
SOURCE
SOURCE
+
(Referred to V )
l
Leakage Current
Propagation Delay
V
V
= 40V, V
> 100mV
OVERDRIVE
0.5
3
2
5.5
μA
μs
OUT
> 100mV, R
= 10k
OVERDRIVE
LOAD
The l denotes the specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 85°C, otherwise specifications
are at TA = 25°C. Split supply operation VS = 15V, VCM = 0V unless otherwise noted. (Note 4)
LT1716C/LT1716I
SYMBOL
PARAMETER
CONDITIONS
–14.5V < V < 14V
MIN
TYP
MAX
UNITS
V
Input Offset Voltage
300
1500
2000
2400
μV
μV
μV
OS
CM
l
l
0°C < T < 70°C
A
–40°C < T < 85°C
A
l
l
Input Offset Voltage Drift (Note 5)
Input Offset Current
0°C < T < 70°C
2
2
μV/°C
μV/°C
A
–40°C < T < 85°C
A
l
l
l
I
I
V
V
V
= 0V
= 29V
= –15V
3
15
0.9
1.3
nA
μA
μA
OS
CM
CM
CM
Input Bias Current
V
= 0V
30
50
60
100
nA
nA
B
CM
l
l
l
l
V
CM
V
CM
V
CM
= 29V
= –15V
= –20V
6
3
1
9
13
1.4
μA
μA
mA
l
Input Voltage Range (Note 7)
Common Mode Rejection Ratio
–14.5
14
V
l
l
CMRR
PSRR
–14.5V < V < 14V
92
81
110
98
dB
dB
CM
–14.5V < V < 29V (Note 6)
CM
l
l
Power Supply Rejection Ratio
Minimum Operating Supply Voltage
Large-Signal Voltage Gain
V = 1.35V to 22V
90
110
2.4
dB
V
S
2.7
95
A
VOL
R = 6k; –14V < V < 14V
L OUT
500
400
1000
V/mV
V/mV
l
l
l
l
I
I
I
Supply Current
V = 15V, R = Open, V = High
40
20
μA
mA
μA
S
S
L
O
–
+
Output Sink Current (Note 2)
Output Source Current
V
V
> 30mV
10
70
SC
SC
OVERDRIVE
OVERDRIVE
= 5mV, V
= –14V
105
OUT
1716fa
3
LT1716
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range of –40°C ≤ TA ≤ 85°C, otherwise specifications are at TA = 25°C. Split supply operation VS = 15V, VCM = 0V
unless otherwise noted. (Note 4)
LT1716C/LT1716I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
l
l
l
l
V
OL
Output Voltage Swing Low
I
I
I
I
= 0mA, V
= 0.1mA
= 1mA
= –10mV
20
75
200
550
35
mV
mV
mV
mV
SINK
SINK
SINK
SINK
OVERDRIVE
–
(Referred to V )
110
300
900
= 5mA
l
l
V
OH
Output Voltage Swing High
I
I
= 0μA, V
= 10μA
= 10mV
OVERDRIVE
45
140
75
210
mV
mV
SOURCE
SOURCE
+
(Referred to V )
l
Leakage Current
V
V
= 25V, V
> 100mV
OVERDRIVE
0.6
5.5
2
9
μA
μs
OUT
Propagation Delay
> 100mV, R
= 10k
LOAD
OVERDRIVE
The l denotes the specifications which apply over the full operating temperature range of –40°C < TA < 125°C, otherwise specifications
are at TA = 25°C. Single supply operation V+ = 5V, V– = 0V; VCM = VCC/2 unless otherwise noted. (Note 4)
LT1716H
SYMBOL
PARAMETER
CONDITIONS
0.5V < V < (V – 1V)
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
300
1600
2900
μV
μV
CM
CC
l
l
Input Offset Voltage Drift (Note 5)
Input Offset Current
2
3
μV/°C
+
l
l
l
I
I
V
V
V
= V /2
= 0V
220
1.3
0.9
nA
μA
μA
OS
CM
CM
CM
= 44V
+
Input Bias Current
V
= V /2
20
50
900
nA
nA
B
CM
l
+
V = 0V, V = 44V
2
3
6
1
nA
μA
CM
l
l
l
V
CM
V
CM
V
CM
= 0V
25
14
1.4
= 44V
= –5V
μA
mA
Input Voltage Range (Note 7)
Common Mode Rejection Ratio
0.5
44
V
+
l
l
CMRR
PSRR
0.5V < V < (V – 1V)
75
72
110
110
dB
dB
CM
0.5V < V < 44V (Note 6)
CM
–
+
l
l
Power Supply Rejection Ratio
Minimum Operating Supply Voltage
Large-Signal Voltage Gain
V = 0V, V = 1.5V, 2.7V < V < 36V
85
110
2.4
dB
V
CM
2.7
A
VOL
R = 1k, 1V < V < 4V
OUT
200
20
500
V/mV
V/mV
L
l
l
l
R = 6k
L
+
I
Supply Current per Amplifier
V = 3V, R = Open, V = High
35
35
40
50
70
μA
μA
S
L
O
+
V = 5V, R = Open, V = High
55
75
μA
μA
L
O
+
V = 12V, R = Open, V = High
60
85
μA
μA
L
O
l
l
l
–
+
I
I
Output Sink Current (Note 2)
Output Source Current
V
V
> 30mV
5
10
mA
μA
SC
OVERDRIVE
= 5mV, V
= 1V
60
110
SC
OVERDRIVE
OUT
l
l
l
l
V
Output Voltage Swing Low
I
I
I
I
= 0mA, V = –10mV
OVERDRIVE
20
75
200
550
60
170
480
1200
mV
mV
mV
mV
OL
SINK
SINK
SINK
SINK
–
(Referred to V )
= 0.1mA
= 1mA
= 5mA
l
l
V
Output Voltage Swing High
I
I
= 0μA, V = –10mV
OVERDRIVE
= 10μA
50
130
110
220
mV
mV
OH
SOURCE
SOURCE
+
(Referred to V )
l
Leakage Current
V
V
= 40V, V
> 100mV
OVERDRIVE
1.7
6
5
9
μA
μs
OUT
Propagation Delay
> 100mV, R
= 10k
LOAD
OVERDRIVE
1716fa
4
LT1716
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range of –40°C < TA < 125°C, otherwise specifications are at TA = 25°C. Split supply operation VS = 15V, VCM = 0V
unless otherwise noted. (Note 4)
LT1716H
SYMBOL
PARAMETER
CONDITIONS
–14.5V < V < 14V
MIN
TYP
MAX
UNITS
V
Input Offset Voltage
300
1500
2900
μV
μV
OS
CM
l
l
Input Offset Voltage Drift (Note 5)
Input Offset Current
2
3
μV/°C
l
l
l
I
I
V
CM
V
CM
V
CM
= 0V
= 29V
= –15V
280
0.9
1.3
nA
μA
μA
OS
Input Bias Current
V
= 0V
30
50
60
1400
nA
nA
B
CM
l
l
l
l
V
CM
V
CM
V
CM
= 29V
= –15V
= –20V
6
3
1
20
30
1.4
μA
μA
mA
l
Input Voltage Range (Note 7)
Common Mode Rejection Ratio
–14.5
14
V
l
l
CMRR
PSRR
–14.5V < V < 14V
85
70
110
93
dB
dB
CM
–14.5V < V < 29V (Note 6)
CM
l
l
Power Supply Rejection Ratio
Minimum Operating Supply Voltage
Large-Signal Voltage Gain
V = 1.35V to 22V
80
110
2.4
dB
V
S
2.7
95
A
VOL
R = 6k; –14V < V
L
< 14V
< 13V
500
50
1000
V/mV
V/mV
L
OUT
OUT
l
R = 6k; –13V < V
I
I
I
Supply Current
V = 15V, R = Open, V = High
40
10
μA
mA
μA
S
S
L
O
–
+
l
l
Output Sink Current (Note 2)
Output Source Current
Output Voltage Swing Low
V
V
> 30mV
5
SC
SC
OVERDRIVE
OVERDRIVE
= 5mV, V
= –14V
70
155
OUT
l
l
l
l
V
OL
I
I
I
I
= 0mA, V = –10mV
OVERDRIVE
20
75
200
550
70
170
480
1200
mV
mV
mV
mV
SINK
SINK
SINK
SINK
–
(Referred to V )
= 0.1mA
= 1mA
= 5mA
l
l
V
OH
Output Voltage Swing High
I
I
= 0μA, V = 10mV
OVERDRIVE
= 10μA
45
140
120
250
mV
mV
SOURCE
SOURCE
+
(Referred to V )
l
Leakage Current
V
V
= 25V, V
> 100mV
1.5
5.5
5
μA
μs
OUT
OVERDRIVE
Propagation Delay
> 100mV, R
= 10k
10
OVERDRIVE
LOAD
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: A heat sink may be required to keep the junction temperature
below absolute maximum.
Note 4: The LT1716C is guaranteed to meet specified performance from
0°C to 70°C. The LT1716C is designed, characterized and expected to meet
performance from –40°C to 85° but is not tested or QA sampled at the
temperatures. The LT1716I is guaranteed to meet specified performance
from –40°C to 85°C. The LT1716H is guaranteed to meet specified
performance from –40°C to 125°C.
Note 5: This parameter is not 100% tested.
Note 6: Typical input offset voltage of 500μV at V = 44V above V– and a
Note 3: The LT1716C/LT1716I are guaranteed functional over the operating
temperature range of –40°C to 85°C. The LT1716H is guaranteed
functional over the operating temperature range of –40°C to 125°C.
CM
maximum input offset voltage of 4mV at V = 44V above V–.
CM
Note 7: If one input is within this input range, the other input can go 5V
below V– and the output will be valid.
1716fa
5
LT1716
TYPICAL PERFORMANCE CHARACTERISTICS
Input Bias Current
vs Common Mode Voltage
Input Bias Current
vs Temperature
Input Bias Current
vs Differential Input Voltage
10
8
1.0000
0.1000
0.0100
0.0010
0.0000
–0.0010
–0.0100
1
0
+
–
V
=
15V
V
= 15V
S
125°C
V
= –15V
+
V
= 15V
–
V
= –15V
CM
V
= 0V
25°C
+
–
85°C
V
V
V
= 5V
= 0V
–IN
+IN
6
–1
–2
–3
–4
= 2.5V
CM
CURRENT
OUT OF PIN
–55°C
4
2
125°C
10
CURRENT
OUT OF PIN
TRANSITION
0
REGION
INPUTS
EXCEED SUPPLY
–2
75 100
–50 –25
0
25 50
TEMPERATURE (°C)
125 150
0
–0.2 –0.15 –0.1 –0.05
0.05 0.1 0.15 0.2
0
5
15
(V)
20 25
30
V
DIFFERENTIAL INPUT VOLTAGE (V)
CM
1716 G01
1716 G02
1716 G03
Output Low Voltage
vs Sink Current
Output High Voltage
vs Source Current
Input Bias Current with Inputs
Driven Above the Supply
5.0
4.9
4.8
4.7
4.6
4.5
2.0
1.6
1.2
0.8
0.4
0
10
8
+
–
+
–
V
V
= 5V
= 0V
V
V
= 5V
= 0V
V
AT 125°C
OL
125°C
85°C
V
AT –55°C
OH
V
AT 85°C
OL
6
V
AT 85°C, 125°C
OH
V
AT 25°C
OL
4
V
AT 25°C
–55°C
OH
25°C
V
AT –55°C
OL
2
0
+
INPUTS
EXCEED SUPPLY
V
V
= 5V
–
= 0V
–2
0
5
10 15 20 25 30 35 40 45 50
LOADING SOURCE CURRENT (μA)
0
2
4
6
8
10 12 14 16 18 20
0
5
10 15 20 25 30 35 40 45 50
(V)
LOADING SINK CURRENT (mA)
V
CM
1716 G05
1716 G04
1716 G06
Input Bias Current with Inputs
Driven Below the Supply
Positive Supply Current
vs Output Sinking Current
Supply Current vs Temperature
200
0
1000
100
10
100
90
80
70
60
50
40
30
20
10
0
+
–
+
–
V
V
= 2.7V TO 44V
= 0V
T
= 25°C
V
V
= 5V
= 0V
A
–200
–400
–600
–800
–1000
–1200
OUTPUT LOW
–55°C < T < 125°C
A
V
=
15V
V = 5V
S
S
OUTPUT HIGH
–5
–4
–3
–2
–1
0
–50
50
100 125
150
0.1
1
10
100
–25
0
25
75
V
(V)
OUTPUT SINK CURRENT (mA)
TEMPERATURE (°C)
CM
1716 G07
1716 G09
1716 G08
1716fa
6
LT1716
TYPICAL PERFORMANCE CHARACTERISTICS
Output Leakage Current
vs Output Voltage
Output Sinking Current Limit
vs Temperature
Reverse Supply Current
500
450
400
350
300
250
0.6
0.5
0.4
0.3
0.2
0.1
0
30
25
20
15
10
5
+
–
+
V
V
= 5V
OUTPUT SHORTED TO V
T
= 25°C
A
= 0V
T
= 25°C
A
V
= 5V
S
V
= 15V
S
0
75 100
–50 –25
0
25 50
125 150
5
10 15 20 25 30 35 40 45
0
5
10
15
20
25
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
REVERSE VOLTAGE (V)
1716 G10
1716 G27
1716 G11
Output Sinking Current
vs Total Supply Voltage
Total Switching Time
vs Temperature
Total Switching Time
vs Overdrive
100
10
1
30
25
20
15
10
5
100
10
1
+
R
V
= 10k
R
V
OUTPUT SHORTED TO V
A
L
L
= 90% V
OUT
= 10% V
OUT
STEP
(RISE)
(FALL)
(RISE)
(FALL)
T
= 25°C
FINAL
FINAL
FINAL
FINAL
V
V
T
V
V
V
= 100mV
= 25°C
= 10mV
A
OVERDRIVE
V
=
15V
S
V
=
15V
RISE
S
15V
FALL
FALL TIME
15V
2.5V
FALL TIME
RISE TIME
V
=
2.5V
S
V
=
2.5V
S
FALL
RISE
2.5V
RISE TIME
0
10 20
40
60 70 80
100
90
1
10
TOTAL SUPPLY VOLTAGE (V)
100
0
30
50
–50 –25
0
25 50 75
150
100 125
TEMPERATURE (°C)
OVERDRIVE (mV)
1716 G14
1716 G12
1716 G13
Total Switching Time
vs Total Supply Voltage
Total Switching Time
vs Pull-Up Resistor
Response Time
100
10
1
100
10
1
R
V
= 10k
V
V
V
T
= 90% V
FINAL
L
OUT
= 90% V
= 10% V
(RISE)
(FALL)
TOTALSUPPLY
30V
26V
= 100mV
OUT
OUT
FINAL
FINAL
+
STEP
OVERDRIVE
= 25°C
V
IN
V
V
V
V
= 10mV
= 1/2 V
CM
STEP
OVERDRIVE
A
= 100mV
= 10mV
V
=
15V
RISE
S
FALL
RISE
5V
0V
R
= 100k
= 10k
L
V
= 2.5V
S
RISE
R
R = OPEN
L
V
L
OUT
1716 G17
V
V
R
V
V
= 5V, 0V
= 10mV
TIME (μs)
S
OD
L
IN
IN
= 10k, 100k, OPEN
+
–
= 26V TO 30V
0
10
20
40
1
10
100
1000
10000
30
= 29.99V
TOTAL SUPPLY VOLTAGE (V)
PULL-UP RESISTOR (k)
1716 G16
1716 G15
1716fa
7
LT1716
TYPICAL PERFORMANCE CHARACTERISTICS
Response Time
Response Time
Response Time
25V
21V
15V
+
25V
21V
15V
+
30V
26V
+
V
V
V
IN
IN
IN
R
= 10k, 100k
L
V
V
OUT
OUT
R
L
= OPEN
–15V
–15V
5V
0V
V
OUT
1716 G19
1716 G20
1716 G18
V
V
=
15V
= 10mV
TIME (μs)
V
V
=
15V
TIME (μs)
V
V
R
V
V
= 5V, 0V
= 10mV
TIME (μs)
S
S
S
OD
L
= 10mV
OD
OD
R
V
= 10k, 100k, OPEN
R
V
= 10k, 100k, OPEN
= 10k, 100k, OPEN
L
L
+
+
+
–
= 21V TO 25V
= 24.99V
= 25V TO 21V
= 21.01V
= 30V TO 26V
= 26.01V
IN
IN
IN
IN
IN
IN
–
–
V
V
Response Time
Response Time
Response Time
2.5V
2.4V
V
OUT
5V
+
2.6V
0V
+
+
V
V
V
IN
IN
IN
2.5V
5V
–100mV
15V
R
L
= 10k
R
= 100k
R = 10k, 100k
L
L
V
V
OUT
OUT
R
L
= OPEN
R
= OPEN
L
0V
–15V
0V
1716 G21
1716 G22
1716 G23
V
V
R
V
=
15V
= 10mV
TIME (μs)
V
V
= 5V
TIME (μs)
V
V
R
V
V
=
15V
= 10mV
TIME (μs)
S
S
S
= 10mV
OD
OD
OD
= 10k, 100k, OPEN
R
V
= 10k, 100k, OPEN
= 10k, 100k, OPEN
L
L
L
+
+
+
= 2.4V TO 2.5V
= 2.49V
= 2.6V TO 2.5V
= –100mV TO 0V
= –10mV
IN
IN
IN
IN
IN
IN
–
–
–
V
V
= 2.51V
Response Time
Below VS– Fault (Rising)
Below VS– Fault (Falling)
100mV
–14.9V
–19V
15V
+
+
–14.9V
–19V
15V
+
V
V
IN
V
IN
IN
V
0V
15V
R
= 10k, 100k
L
V
V
OUT
OUT
OUT
R
L
= OPEN
–15V
–15V
–15V
1716 G24
1716 G25
1716 G26
V
V
R
V
V
=
15V
TIME (μs)
V
=
15V
TIME (μs)
V
=
15V
TIME (μs)
S
S
L
S
L
= 10mV
R
V
= 10k, 100k, OPEN
R
V
= 10k, 100k, OPEN
OD
+
–
+
= 10k, 100k, OPEN
= –19V TO –14.9V
= –15V
= –14.9V TO –19V
= –15V
L
IN
IN
IN
IN
+
–
= 110mV TO 0mV
= 10mV
V
V
IN
IN
–
1716fa
8
LT1716
APPLICATIONS INFORMATION
The LT1716 comparator features low power operation
with exceptional input precision with rail-to-rail input and
output swing. The comparator operates flawlessly even
when the inputs are pulled over the positive rail or below
the negative rail.
A Schottky diode in the collector of each NPN transistor
of the NPN input stage allows the LT1716 to operate with
+
either or both of its inputs above V . At about 0.3V above
+
V , the NPN transistor is fully saturated and the input bias
current is typically 4μA at room temperature. The input
offset voltage is typically 500μV when operating above
+
–
Supply Voltage
V . The LT1716 will operate with its input 44V above V ,
+
regardless of V .
The LT1716 operates from 2.7V to 44V. The comparator
+
can be shut down by removing V . In this condition, the
The transition to the negative common mode input stage
–
input bias current is typically less than 3nA, even if the
inputs are 44V above the negative supply. The LT1716 is
protected against reverse battery voltages of up to 20V.
The reverse battery current is resistive as shown in the
Reverse Supply Current graph.
occurs at 0.3V above V . Above this trip point the PNP
–
stage is active. When the inputs are 0.3V below V , the
common base input stage is active in addition to the PNP
stage. The input bias current out of each input becomes
V /5kΩ. The LT1716 is designed to operate when either
IN
input falls below the negative supply. Internal resistors
protect the inputs for faults below the negative supply of
up to 5V without phase reversal. The built-in 5k resistor
limits the current at each input to 1mA at 5V below the
negative supply. External matched input resistors can
be added for increased voltage fault operation below the
negative supply but the maximum input current should
be kept under 1mA.
Inputs
The comparator inputs can swing from 0.5V above to 44V
–
above V . If one input is within this range, the other input
–
can be forced up to 5V below V without phase reversal
occuring at the output.
The LT1716 has three stages—NPN, PNP and common
base (see Simplified Schematic)—resulting in three
distinct operating regions and two transition regions as
shown in the Input Bias Current vs Common Mode typical
performance curve.
Input Protection
The inverting and noninverting input pins of the LT1716
have on-chip protection. ESD protection is provided to
prevent damage during handling. The input transistors
have voltage clamping and limiting resistors to protect
+
For input voltages about 0.8V or more below V , the PNP
input stage is active and the input bias current is typically
–4nA. The PNP differential input stage will have bias cur-
rent that flows out of the device. With a differential input
voltage of even just 100mV or so, there will be zero bias
current into the higher of the two inputs, while the current
flowing out of the lower input will be twice the measured
bias current.
–
against excursions as much as 5V below V . There are
no clamping diodes between the inputs and the maximum
differential input voltage is 44V.
Output
The output stage of the LT1716 can drive loads connected
to a supply more positive than the device, the same as
comparators with open collector output stages. The
+
When the input voltage is about 0.5V or less from V , the
NPNstateisoperatingandtheinputbiascurrentistypically
10nA. Increases in temperature will cause the voltage at
which operation switches from the PNP stage to the NPN
–
output of the LT1716 can be pulled up to 44V above V ,
+
regardless of V .
+
stage to move towards V . The input offset voltage of the
NPN stage is untrimmed and is typically 500μV.
1716fa
9
LT1716
SIMPLIFIED SCHEMATIC
1716fa
10
LT1716
PACKAGE DESCRIPTION
S5 Package
5-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1635)
0.62
MAX
0.95
REF
2.90 BSC
(NOTE 4)
1.22 REF
1.50 – 1.75
(NOTE 4)
2.80 BSC
1.4 MIN
3.85 MAX 2.62 REF
PIN ONE
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
0.30 – 0.45 TYP
5 PLCS (NOTE 3)
0.95 BSC
0.80 – 0.90
0.20 BSC
DATUM ‘A’
0.01 – 0.10
1.00 MAX
0.30 – 0.50 REF
1.90 BSC
0.09 – 0.20
(NOTE 3)
NOTE:
S5 TSOT-23 0302
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
1716fa
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 representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
LT1716
TYPICAL APPLICATIONS
Overcurrent Flag
4.5V TO 44V
0.1μF
LT1634-1.25
113k
1%
3V
11.8k
1%
5
4
3
CMPD6263
OVERCURRENT
–
+
1
10M
1%
LT1716
R
S
10.7k
1%
2
10M
1%
LOAD
0.1
I
=
MAX
R
S
1716 TA03
Charge/Discharge Indicator
0.1Ω
+
CHARGE
CURRENT
LOAD
V
CHARGER
3V TO 44V
–
3V
0.1μF
681Ω
1%
5
4
CMPD6263
CHARGE
–
+
1
1M
1%
LT1716
2
3
681Ω
1%
1M
1%
1716 TA04
RELATED PARTS
PART NUMBER
LTC1442
DESCRIPTION
COMMENTS
Dual Micropower Comparator and 1% Reference
Nanopower Comparator and 1% Reference
Micropower Precision Shunt Reference
1.182V 1% Reference, 10mV
1.182V 1% Reference, 10mV
Input Offset
Input Offset
MAX
LTC1540
MAX
LT1634
0.05%, 10μA, 10ppm/°C Max Drift, 1.25V, 2.5V, 4.096V, 5V,
MSOP, SO-8, TO-92 Packages
LTC1921
LTC1998
Dual –48V Telecom Supply Monitor
Micropower Li-Ion Battery Monitor
Monitors Two Supplies and Fuses
1% Trip Point Adjustable from 2.5V to 3.25V
1716fa
LT 0809 REV A • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
12
●
●
© LINEAR TECHNOLOGY CORPORATION 2002
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
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