LT6703-2 Datasheet, PDF (1/12 Pages) Linear Technology – Micropower, Low Voltage Comparator with 400mV Reference

FEATURES
■ _{Internal 400mV Reference}
■ _{Total Threshold Error: ± 1.25% Max at 25°C}
■ _{Wide Supply Range: 1.4V to 18V}
■ _{Specified for –40 to 125°C Temperature Range}
■ _{Low Quiescent Current: 6.5μA Typ at 5V}
■ _{Internal Hysteresis: 6.5mV Typ}
■ _{Low Input Bias Current: ±10nA Max}
■ _Over-The-Top^® _{Input also Includes Ground}
■ _{Open-Collector Output Allows Level Translation}
■ _{Choice of Input Polarities: LT6703-2/LT6703-3}
■ _{Available in a 2mm × 2mm DFN Package}
APPLICATIONS
■ _{Battery-Powered System Monitoring}
■ _{Threshold Detectors}
■ _{Window Comparators}
■ _{Relay Driving}
■ _{Optoisolator Driving}
■ _{Industrial Control Systems}
■ _{Handheld Instruments}
TYPICAL APPLICATION
Micropower Supply Voltage Monitor
1.4V ≤ V_IN ≤ 18V
(V_TH = 3V)
1MΩ
LT6703-3
V_S
+IN ₊
0.1μF
154k
–
400mV
REFERENCE
GND
1MΩ
OUT
V_S
670323 TA01
LT6703-2/LT6703-3
Micropower, Low Voltage
Comparator with
400mV Reference
DESCRIPTION
The LT^®6703-2/LT6703-3 combine a micropower, low
voltage comparator with a 400mV reference in a tiny DFN
package. Operating with supplies from 1.4V up to 18V,
these devices draw only 6.5μA, making them ideal for
low voltage system monitoring. Hysteresis is included in
the comparator, ensuring stable operation.
The comparator has one input available externally while
the other input is connected internally to the reference. The
comparator output is open collector and the output load
can be referred to any voltage up to 18V independent of
supply voltage. The output stage has a guaranteed current
sink capability of more than 5mA over temperature.
The two versions of this part differ by the polarity of the
available comparator input. The LT6703-2 has an inverting
input and the LT6703-3 has a noninverting input. Both
versions are offered in commercial, industrial and automo-
tive temperature ranges.
, LT, LTC, LTM and Over-The-Top 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.
Rising Input Threshold Voltage vs Temperature
404
FOUR TYPICAL PARTS
403
V_S = 5V
#1
402
401
#2
400
#3
399
398
#4
397
396
–60 –40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
670323 G04
670323fa
1