LT1716
SOT-23, 44V, Over-The-Top,
Micropower, Precision
Rail-to-Rail Comparator
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
s
s
Operates from 2.7V to 44V
Over-The-Top
®
: Input Common Mode Range
Extends 44V Above V
–
, Independent of V
+
Micropower: 35µA I
Q
Offset Voltage: 1.5mV Max
5-Pin SOT-23 Package
Valid Output with Either Input 5V Below V
–
Rail-to-Rail Output Swing
Output Can Drive Loads Above V
+
Internal Pull-Up Current
– 40°C to 125°C Operating Temperature Range
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
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.
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.
The LT1716 is available in a SOT-23 5-lead package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Over-The-Top is a registered trademark of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
Power Supply Monitors
Relay/Lamp Driver
Oscillators
Peak Detector
Level Shifting
TYPICAL APPLICATIO
5V TO 44V
1M
LAMP
ON/OFF
100k
5k
R
S
0.15Ω
1W
0.25A TO 2.5A
R
S
≥
0.04
I
L
CMPD6001
4
Lamp Monitor
3V
0.1µF
Input Bias Current vs Input Bias Voltage
12µ
8µ
4µ
6n
V
S
= 5V, 0V
INPUT
BELOW
SUPPLY
INPUT
ABOVE
SUPPLY
+IN = 10V
I
B–
(A)
–
+
5
1
LAMP GOOD
3n
0
–3n
–6n
–100µ
1716 TA01
LT1716
3
2
+IN = 2V
–0.5m
–1m
–1.5m
–10
–5
0
5
10
V
IN–
(V)
15
20
45
U
+IN = 2V
1716 TA02
U
U
1716f
1
LT1716
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
TOP VIEW
OUT 1
V
–
2
+IN 3
+
–
4 –IN
5 V
+
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)
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 PART NUMBER
LT1716CS5
LT1716IS5
LT1716HS5
S5 PART MARKING*
LTYD
S5 PACKAGE
5-LEAD PLASTIC SOT-23
T
JMAX
= 150°C,
θ
JA
= 250°C/W
*The temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
The
q
denotes the specifications which apply over the full operating
temperature range of –40°C
≤
T
A
≤
85°C, otherwise specifications are at T
A
= 25°C. Single supply operation V
+
= 5V, V
–
= 0V;
V
CM
= V
+
/2 unless otherwise noted. (Note 4)
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
CONDITIONS
0.5V < V
CM
< (V
CC
– 1V)
0°C < T
A
< 70°C
– 40°C < T
A
< 85°C
0°C < T
A
< 70°C
– 40°C < T
A
< 85°C
V
CM
= V
+
/2
V
CM
= 0V
V
CM
= 44V
V
CM
= V
+
/2
q
q
q
q
q
q
q
q
ELECTRICAL CHARACTERISTICS
LT1716C/LT1716I
MIN
TYP
MAX
300
1600
2100
2500
UNITS
µV
µV
µV
µV/°C
µV/°C
Input Offset Voltage Drift
(Note 5)
I
OS
Input Offset Current
2
2
3
15
1.3
0.9
50
75
13
9
1.4
44
110
110
110
2.4
200
100
500
35
50
65
55
75
60
85
2.7
I
B
Input Bias Current
20
35
2
3
6
1
0.5
89
81
95
V
+
= 0V, V
CM
= 44V
V
CM
= 0V
V
CM
= 44V
V
CM
= – 5V
Input Voltage Range (Note 7)
CMRR
PSRR
A
VOL
I
S
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Minimum Operating Supply Voltage
Large-Signal Voltage Gain
Supply Current
R
L
= 1k; 1V < V
OUT
< 4V
0.5V
≤
V
CM
< (V
+
– 1V)
0.5V
≤
V
CM
< 44V, (Note 6)
V
–
= 0V, V
CM
= 1.5V; 2.7V < V
+
< 36V
q
q
q
q
q
q
q
q
q
V/mV
V/mV
µA
µA
µA
µA
µA
µA
1716f
V
+
= 3V, R
L
= Open, V
O
= High
q
V
+
= 5V, R
L
= Open, V
O
= High
q
35
40
q
V
+
= 12V, R
L
= Open, V
O
= High
2
U
nA
µA
µA
nA
nA
nA
µA
µA
mA
V
dB
dB
dB
V
W
U
U
W W
W
LT1716
The
q
denotes the specifications which apply over the full operating
temperature range of –40°C
≤
T
A
≤
85°C, otherwise specifications are at T
A
= 25°C. Single supply operation V
+
= 5V, V
–
= 0V;
V
CM
= V
+
/2 unless otherwise noted. (Note 4)
SYMBOL
I
SC–
I
SC+
V
OL
PARAMETER
Output Sink Current (Note 2)
Output Source Current
Output Voltage Swing Low
(Referred to V
–
)
CONDITIONS
V
OVERDRIVE
> 30mV
V
OVERDRIVE
= 5mV, V
OUT
= 1V
I
SINK
= 0mA, V
OVERDRIVE
= –10mV
I
SINK
= 0.1mA
I
SINK
= 1mA
I
SINK
= 5mA
I
SOURCE
= 0µA, V
OVERDRIVE
= 10mV
I
SOURCE
= 10µA
V
OUT
= 40V, V
OVERDRIVE
> 100mV
V
OVERDRIVE
> 100mV, R
LOAD
= 10k
q
q
q
q
q
q
q
q
q
ELECTRICAL CHARACTERISTICS
LT1716C/LT1716I
MIN
TYP
MAX
10
60
20
85
20
75
200
550
30
130
0.5
3
35
110
300
900
55
185
2
5.5
UNITS
mA
µA
mV
mV
mV
mV
mV
mV
µA
µs
V
OH
Output Voltage Swing High
(Referred to V
+
)
Leakage Current
Propagation Delay
The
q
denotes the specifications which apply over the full operating temperature range of –40°C
≤
T
A
≤
85°C, otherwise specifications
are at T
A
= 25°C. Split supply operation V
S
=
±15V,
V
CM
= 0V unless otherwise noted. (Note 4)
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
CONDITIONS
– 14.5V < V
CM
< 14V
0°C < T
A
< 70°C
– 40°C < T
A
< 85°C
0°C < T
A
< 70°C
– 40°C < T
A
< 85°C
V
CM
= 0V
V
CM
= 29V
V
CM
= – 15V
V
CM
= 0V
q
q
q
q
q
q
q
q
LT1716C/LT1716I
MIN
TYP
MAX
300
1500
2000
2400
UNITS
µV
µV
µV
µV/°C
µV/°C
Input Offset Voltage Drift (Note 5)
I
OS
Input Offset Current
2
2
3
15
0.9
1.3
60
100
9
13
1.4
14
110
98
110
2.4
500
400
10
70
1000
40
20
105
20
75
200
550
35
110
300
900
95
2.7
nA
µA
µA
nA
nA
µA
µA
mA
V
dB
dB
dB
V
V/mV
V/mV
µA
mA
µA
mV
mV
mV
mV
I
B
Input Bias Current
30
50
6
3
1
– 14.5
92
81
90
V
CM
= 29V
V
CM
= – 15V
V
CM
= – 20V
Input Voltage Range (Note 7)
CMRR
PSRR
A
VOL
I
S
I
SC–
I
SC+
V
OL
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Minimum Operating Supply Voltage
Large-Signal Voltage Gain
Supply Current
Output Sink Current (Note 2)
Output Source Current
Output Voltage Swing Low
(Referred to V
–
)
R
L
= 6k; –14V < V
OUT
< 14V
– 14.5V < V
CM
< 14V
– 14.5V < V
CM
< 29V (Note 6)
V
S
=
±1.35V
to
±22V
q
q
q
q
q
q
q
q
q
V
S
=
±15V,
R
L
= Open, V
O
= High
V
OVERDRIVE
> 30mV
V
OVERDRIVE
= 5mV, V
OUT
= –14V
I
SINK
= 0mA, V
OVERDRIVE
= –10mV
I
SINK
= 0.1mA
I
SINK
= 1mA
I
SINK
= 5mA
q
q
q
q
q
q
q
1716f
3
LT1716
The
q
denotes the specifications which apply over the full operating
temperature range of –40°C
≤
T
A
≤
85°C, otherwise specifications are at T
A
= 25°C. Split supply operation V
S
=
±15V,
V
CM
= 0V
unless otherwise noted. (Note 4)
SYMBOL
V
OH
PARAMETER
Output Voltage Swing High
(Referred to V
+
)
Leakage Current
Propagation Delay
CONDITIONS
I
SOURCE
= 0µA, V
OVERDRIVE
= 10mV
I
SOURCE
= 10µA
V
OUT
= 25V, V
OVERDRIVE
> 100mV
V
OVERDRIVE
> 100mV, R
LOAD
= 10k
q
q
q
ELECTRICAL CHARACTERISTICS
LT1716C/LT1716I
MIN
TYP
MAX
45
140
0.6
5.5
75
210
2
9
UNITS
mV
mV
µA
µs
The
q
denotes the specifications which apply over the operating temperature range of – 40°C < T
A
< 125°C, otherwise specifications
are at T
A
= 25°C. Single supply operation V
+
= 5V, V
–
= 0V, V
CM
= V
CC
/2 unless otherwise noted. (Note 4)
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
Input Offset Voltage Drift (Note 5)
I
OS
Input Offset Current
V
CM
= V
+
/2
V
CM
= 0V
V
CM
= 44V
V
CM
= V
+
/2
q
CONDITIONS
0.5V < V
CM
< (V
CC
– 1V)
q
q
q
q
q
MIN
LT1716H
TYP
300
2
3
MAX
1600
2900
220
1.3
0.9
50
900
25
14
1.4
44
UNITS
µV
µV
µV/°C
nA
µA
µA
nA
nA
nA
µA
µA
mA
V
dB
dB
dB
I
B
Input Bias Current
20
2
3
6
1
0.5
75
72
85
200
20
110
110
110
2.4
500
35
q
V
+
= 0V, V
CM
= 44V
V
CM
= 0V
V
CM
= 44V
V
CM
= – 5V
Input Voltage Range (Note 7)
CMRR
PSRR
A
VOL
I
S
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Minimum Operating Supply Voltage
Large-Signal Voltage Gain
Supply Current per Amplifier
R
L
= 1k, 1V < V
OUT
< 4V
R
L
= 6k
V
+
= 3V, R
L
= Open, V
O
= High
V
+
= 5V, R
L
= Open, V
O
= High
0.5V < V
CM
< (V
+
– 1V)
0.5V < V
CM
< 44V (Note 6)
V
–
= 0V, V
CM
= 1.5V, 2.7V < V
+
< 36V
q
q
q
q
q
q
q
q
2.7
V
V/mV
V/mV
50
70
55
75
60
85
µA
µA
µA
µA
µA
µA
mA
µA
35
q
V
+
= 12V, R
L
= Open, V
O
= High
q
40
q
q
q
q
q
q
q
q
q
I
SC–
I
SC+
V
OL
Output Sink Current (Note 2)
Output Source Current
Output Voltage Swing Low
(Referred to V
–
)
V
OVERDRIVE
> 30mV
V
OVERDRIVE
= 5mV, V
OUT
= 1V
I
SINK
= 0mA, V
OVERDRIVE
= –10mV
I
SINK
= 0.1mA
I
SINK
= 1mA
I
SINK
= 5mA
I
SOURCE
= 0µA, V
OVERDRIVE
= –10mV
I
SOURCE
= 10µA
V
OUT
= 40V, V
OVERDRIVE
> 100mV
V
OVERDRIVE
> 100mV, R
LOAD
= 10k
5
60
10
110
20
75
200
550
50
130
1.7
6
60
170
480
1200
110
220
5
9
mV
mV
mV
mV
mV
mV
µA
µs
1716f
V
OH
Output Voltage Swing High
(Referred to V+)
Leakage Current
Propagation Delay
4
LT1716
The
q
denotes the specifications which apply over the operating
temperature range of – 40°C < T
A
< 125°C, otherwise specifications are at T
A
= 25°C. Split supply operation V
S
=
±15V,
V
CM
= 0V
unless otherwise noted. (Note 4)
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
Input Offset Voltage Drift (Note 5)
I
OS
Input Offset Current
V
CM
= 0V
V
CM
= 29V
V
CM
= – 15V
V
CM
= 0V
q
ELECTRICAL CHARACTERISTICS
CONDITIONS
– 14.5V < V
CM
< 14V
q
q
q
q
q
MIN
LT1716H
TYP
300
2
3
MAX
1500
2900
280
0.9
1.3
60
1400
20
30
1.4
14
UNITS
µV
µV
µV/°C
nA
µA
µA
nA
nA
µA
µA
mA
V
dB
dB
dB
I
B
Input Bias Current
30
50
6
3
1
– 14.5
85
70
80
500
50
5
70
110
93
110
2.4
1000
40
V
CM
= 29V
V
CM
= – 15V
V
CM
= – 20V
Input Voltage Range (Note 7)
CMRR
PSRR
A
VOL
I
S
I
SC–
I
SC+
V
OL
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Minimum Operating Supply Voltage
Large-Signal Voltage Gain
Supply Current
Output Sink Current (Note 2)
Output Source Current
Output Voltage Swing Low
(Referred to V
–
)
R
L
= 6k; –14V < V
OUT
< 14V
R
L
= 6k; –13V < V
OUT
< 13V
V
S
=
±15V,
R
L
= Open, V
O
= High
V
OVERDRIVE
> 30mV
V
OVERDRIVE
= 5mV, V
OUT
= –14V
I
SINK
= 0mA, V
OVERDRIVE
= –10mV
I
SINK
= 0.1mA
I
SINK
= 1mA
I
SINK
= 5mA
I
SOURCE
= 0µA, V
OVERDRIVE
= 10mV
I
SOURCE
= 10µA
V
OUT
= 25V, V
OVERDRIVE
> 100mV
V
OVERDRIVE
> 100mV, R
LOAD
= 10k
– 14.5V < V
CM
< 14V
– 14.5V < V
CM
< 29V (Note 6)
V
S
=
±1.35V
to
±22V
q
q
q
q
q
q
q
q
q
2.7
V
V/mV
V/mV
95
µA
mA
µA
q
q
q
q
q
q
q
q
q
10
155
20
75
200
550
45
140
1.5
5.5
70
170
480
1200
120
250
5
10
mV
mV
mV
mV
mV
mV
µA
µs
V
OH
Output Voltage Swing High
(Referred to V
+
)
Leakage Current
Propagation Delay
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
A heat sink may be required to keep the junction temperature
below absolute maximum.
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.
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
CM
= 44V above V
–
and a
maximum input offset voltage of 4mV at V
CM
= 44V above V
–
.
Note 7:
If one input is within this input range, the other input can go 5V
below V
–
and the output will be valid.
1716f
5
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