Diodes AS321 User Manual
As321, Description, Features
AS321
Document number: DS36976 Rev.
2 - 2
1 of 10
February 2014
© Diodes Incorporated
AS321
A Product Line of
Diodes Incorporated
LOW POWER SINGLE OPERATIONAL AMPLIFIER
Description
The AS321 is a high gain and internally frequency compensated
operational amplifier specifically designed to operate from a single
power supply. Operation from split power supply is also possible and
the low power supply current drain is independent of the magnitude of
the power supply voltages. Typical applications include battery
charger, active filters, general purpose controllers and most
conventional operational amplifier circuits.
The AS321 is compatible with industry standard 321.
The AS321 is available in SOT-23-5 packages.
Features
Excellent Phase Margin: 60 deg.
Large Voltage Gain: 100dB (Typical)
Low Input Bias Current: 20nA (Typical)
Low Input Offset Voltage: 2mV (Typical)
Low Supply Current: 0.35mA at V
CC
= 5V
Wide Power Supply Voltage:
Single Supply: 3V to 36V
Dual Supplies: ±1.5V to ±18V
Wide Input Common Mode Voltage Range: 0V to V
CC
-1.5V
Pin Assignments
(Top View)
(SOT-23-5/ K Package)
Applications
Battery Charger
Active Filters
General Purpose Controllers, Instruments
Typical Applications Circuit
Power Amplifier DC Summing Amplifier
INPUT +
1
2
3
4
5
INPUT -
V
EE
V
CC
OUTPUT