Datasheet

LM321
www.ti.com SNOS935B –FEBRUARY 2001–REVISED MARCH 2013
LM321 Low Power Single Op Amp
Check for Samples: LM321
1
FEATURES
DESCRIPTION
The LM321 brings performance and economy to low
2
• (V
CC
= 5V, T
A
= 25°C. Typical values unless
power systems. With a high unity gain frequency and
specified.)
a specified 0.4V/µs slew rate, the quiescent current is
• Gain-Bandwidth Product 1MHz
only 430µA/amplifier (5V). The input common mode
• Low Supply Current 430µA
range includes ground and therefore the device is
able to operate in single supply applications as well
• Low Input Bias Current 45nA
as in dual supply applications. It is also capable of
• Wide Supply Voltage Range +3V to +32V
comfortably driving large capacitive loads.
• Stable With High Capacitive Loads
The LM321 is available in the SOT-23 package.
• Single Version of LM324
Overall the LM321 is a low power, wide supply range
performance op amp that can be designed into a
APPLICATIONS
wide range of applications at an economical price
without sacrificing valuable board space.
• Chargers
• Power Supplies
• Industrial: Controls, Instruments
• Desktops
• Communications Infrastructure
Connection Diagram
Application Circuit
SOT-23
DC Summing Amplifier
(V
IN's
≥ 0 V
DC
and V
O
≥ V
DC
)
Top View
Where: V
0
= V
1
+ V
2
- V
3
- V
4
, (V
1
+V
2
) ≥
(V
3
+ V
4
) to keep V
O
> 0 V
DC
1
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PRODUCTION DATA information is current as of publication date.
Copyright © 2001–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.