LM321 Datasheet, PDF (1/9 Pages) National Semiconductor (TI) – Low Power Single Op Amp

April 2001
LM321
Low Power Single Op Amp
General Description
The LM321 brings performance and economy to low power
systems. With a high unity gain frequency and a guaranteed
0.4V/µs slew rate, the quiescent current is only
430µA/amplifier (5V). The input common mode range in-
cludes ground and therefore the device is able to operate in
single supply applications as well as in dual supply applica-
tions. It is also capable of comfortably driving large capaci-
tive loads.
The LM321 is available in the SOT23-5 package. Overall the
LM321 is a low power, wide supply range performance op
amp that can be designed into a wide range of applications
at an economical price without sacrificing valuable board
space.
Features
(V_CC = 5V, T_A = 25˚C. Typical values unless specified).
n Gain-Bandwidth product
1MHz
n Low supply current
430µA
n Low input bias current
45nA
n Wide supply voltage range
+3V to +32V
n Stable with high capacitive loads
n Single version of LM324
Applications
n Chargers
n Power supplies
n Industrial: controls, instruments
n Desktops
n Communications infrastructure
Connection Diagram
SOT23-5
Application Circuit
DC Summing Amplifier
(V_IN’s ≥ 0 V_DC and V_O ≥ V_DC)
Top View
20007601
Ordering Information
Package
5-Pin SOT-23
Part Number
LM321MF
LM321MFX
20007607
Where: V₀ = V₁ + V₂ - V₃ - V₄, (V₁+ V₂) ≥ (V₃ + V₄) to keep V_O > 0 V_DC
Package Marking
A63A
Transport Media
1k Units Tape and Reel
3k Units Tape and Reel
NSC Drawing
MF05A
© 2001 National Semiconductor Corporation DS200076
www.national.com