AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Features
General Description
The AP393 consists of two independent precision voltage
comparators with an offset voltage specification as low as 2.0
mV max for two comparators which were designed specifically to
operate from a single power supply over a wide range of
voltages. Operation from split power supplies is also possible
and the low power supply current drain is independent of the
magnitude of the power supply voltage. These comparators also
have a unique characteristic in that the input common-mode
voltage range includes ground, even though operated from a
single power supply voltage.
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Wide supply
- Voltage range: 2.0V to 36V
- Single or dual supplies: ±1.0V to ±18V
Very low supply current drain (0.4 mA) – independent
of supply voltage
Low input biasing current: 25 nA
Low input offset current: ±5 nA
Maximum offset voltage: ±3 mV
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Input common-mode voltage range includes ground
Differential input voltage range equal to the power
supply voltage
Application areas include limit comparators, simple analog to
digital converters; pulse, squarewave and time delay generators;
wide range VCO; MOS clock timers; multivibrators and high
voltage digital logic gates. The AP393 is designed to directly
interface with TTL and CMOS. When operated from both plus
and minus power supplies, the AP393 will directly interface with
MOS logic where their low power drain is a distinct advantage
over standard comparators.
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Low output saturation voltage: 250 mV at 4 mA
Output voltage compatible with TTL, DTL, ECL, MOS
and CMOS logic systems
Packages: 8-pin SOP-8L and DFN (Under
Development) Green packages
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Advantages
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High precision comparators
Reduced VOS drift over temperature
Eliminates need for dual supplies
Allows sensing near ground
Compatible with all forms of logic
Power drain suitable for battery operation
Pin Assignment
(Top View)
1
2
3
4
8
7
6
5
V+
OUTPUT 1
INVERTING INPUT 1
NON-INVERTING INPUT 1
GND
OUTPUT 2
AP393
INVERTING INPUT 2
NON-INVERTING INPUT 2
SOP-8L/DFN-8L
Pin Descriptions
Pin
Pin Name
No.
Pin
No.
Description
Pin Name
Description
OUTPUT 1
INVERTING
INPUT 1
1
Channel 1 Output
NON-INVERTING
INPUT 2
5
Channel 2 Positive Input
Channel 2 Negative Input
2
Channel 1 Negative Input
INVERTING
INPUT 2
6
NON-INVERTING
INPUT 1
3
4
Channel 1 Positive Input
Ground
OUTPUT 2
7
8
Channel 2 Output
Vcc
GND
V+
DS30737 Rev. 2 - 2
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AP393
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