LT6703-2_15 Datasheet, PDF (1/14 Pages) Linear Technology – Micropower, Low Voltage Comparator with 400mV Reference

FEATURES
n _{Internal 400mV Reference}
n _{Total Threshold Error: ±1.25% Max at 25°C}
n _{Wide Supply Range: 1.4V to 18V}
n _{Input and Output Operate to 36V}
n _{Specified for –40°C to 125°C Temperature Range}
n _{Low Quiescent Current: 6.5μA Typ at 5V}
n _{Internal Hysteresis: 6.5mV Typ}
n _{Low Input Bias Current: ±10nA Max}
n _Over-The-Top^® _{Input also Includes Ground}
n _{Open-Collector Output Allows Level Translation}
n _{Choice of Input Polarities: LT6703-2/LT6703-3/}
LT6703HV-2/LT6703HV-3
n _{Available in 2mm × 2mm DFN and}
Low Profile (1mm) SOT-23 (ThinSOT™) Packages
APPLICATIONS
n _{Battery-Powered System Monitoring}
n _{Threshold Detectors}
n _{Window Comparators}
n _{Relay Driving}
n _{Industrial Control Systems}
n _{Handheld Instruments}
n _{Automotive Monitor and Controls}
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
Micropower, Low Voltage
Comparator with
400mV Reference
DESCRIPTION
The LT^®6703-2/LT6703-3/LT6703HV-2/LT6703HV-3 com-
bine 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 (36V for
LT6703HV) 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/LT6703HV-2
has an inverting input and the LT6703-3/LT6703HV-3 has
a noninverting input. Both versions are offered in com-
mercial, industrial and automotive temperature ranges.
L, LT, LTC, LTM, Linear Technology, the Linear logo 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.
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
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 TA01b
670323fd
1