CBM2903
OPERATION INSTRUCTION
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Features
Wide power supply voltage range: +2V to +30V
Input offset voltage: ±1mV (typ)
Low supply current: V
SUPPLY
= 30V, 0.7μA(max) for each channel
Common mode input voltage range includes grounding
Low output saturation voltage
Fast response time: 1.3μs
Open drain output
The output is compatible with TTL, MOS and CMOS
Working temperature: - 40℃~+125℃
Micro package: SOIC-8 (SOP8), TSSOP8
Applications
Vacuum robot
Single phase UPS
Server PSU
Cordless power tool
Wireless infrastructure
Building automation
Factory automation & control
Motor drives
Description
CBM2903 is a dual channel comparator whose output can be connected to other open collector
outputs to realize line and logic. It can operate between 2V and 30V, and the power consumption
of each channel (typical value) is as low as μA level.
The CBM2903 consists of two independent voltage comparators designed to operate from a
single power supply over a wide voltage range. Quiescent current has nothing to do with power
supply voltage. For the application of low input offset voltage, high power supply voltage, low
power supply current and space saving are the main technical indicators of portable consumer
goods circuit design, this device is the most cost-effective solution.
CBM2903
OPERATION INSTRUCTION
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FOCUS ON DEVELOPMENT • SINCERELY SERVICE • INNOVATIVE FUTURE
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CBM2903 supports green sop-8 and tssop-8 packaging. Its operating temperature range is - 40°
C to +125°C.
Pin Assignment
SOP-8
PlN_N
SYMBOL/SOP-8
（CBM2903）
I/O
NAME AND FUNCTION
1
OUT 1
O
Output 1
2
IN1（-）
I
inverting input A
3
IN1（+）
I
None inverting input A
4
GND
--
Negative power supply
5
IN2（+）
I
None inverting input B
6
IN2（-）
I
inverting input B
7
OUT 2
O
Output 2
8
V
CC
--
Positive power supply