19-2103; Rev 0; 8/01
Single/Dual/Quad, General-Purpose,
Low-Voltage, Rail-to-Rail Output Op Amps
General Description
Features
The LMX321/LMX358/LMX324 are single/dual/quad,
low-cost, low-voltage, pin-to-pin compatible upgrades
to the LMV321/LMV358/LMV324 family of general pur-
ꢀ Upgrade to LMV321/LMV358/LMV324 Family
ꢀ Single +2.3V to +7V Supply Voltage Range
®
ꢀ Available in Space-Saving Packages
5-Pin SC70 (LMX321)
pose op amps. These devices offer Rail-to-Rail out-
puts and an input common-mode range that extends
below ground. These op amps draw only 105µA of qui-
escent current per amplifier, operate from a single
+2.3V to +7V supply, and drive 2kΩ resistive loads to
within 40mV of either rail. The LMX321/LMX358/LMX324
are unity-gain stable with a 1.3MHz gain-bandwidth
product capable of driving capacitive loads up to
400pF. The combination of low voltage, low cost, and
small package size makes these amplifiers ideal for
portable/battery-powered equipment.
8-Pin SOT23 (LMX358)
14-Pin TSSOP (LMX324)
ꢀ 1.3MHz Gain-Bandwidth Product
ꢀ 105µA Quiescent Current per Amplifier
(V
= +2.7V)
CC
ꢀ No Phase Reversal for Overdriven Inputs
ꢀ No Crossover Distortion
ꢀ Rail-to-Rail Output Swing
The LMX321 single op amp is available in ultra-small 5-
pin SC70 and space-saving 5-pin SOT23 packages.
The LMX358 dual op amp is available in the tiny 8-pin
SOT23 package. The LMX324 quad op amp is avail-
able in 14-pin TSSOP and SO packages.
ꢀ Input Common-Mode Voltage Range: V - 0.2V
EE
to V
- 0.8V
CC
ꢀ Drives 2kΩ Resistive Loads
Ordering Information
Applications
Cellular Phones
PART
TEMP. RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
5 SC70-5
5 SOT23-5
8 SOT23-8
8 SO
LMX321AXK-T
LMX321AUK-T
LMX358AKA-T
LMX358ASA
LMX358AUA
LMX324ASD
LMX324AUD
Laptops
Low-Power, Low-Voltage Applications
Portable/Battery-Powered Equipment
Cordless Phones
8 µMAX
Active Filters
14 SO
14 TSSOP
Selector Guide appears at end of data sheet.
Pin Configurations
TOP VIEW
OUT1
IN1-
1
2
3
4
5
6
7
OUT4
IN4-
14
13
12
OUT1
IN1-
V
CC
1
2
3
4
8
7
IN1+
IN4+
LMX358
IN+
V
CC
1
2
3
5
4
LMX321
OUT2
IN2-
V
CC
11 V
EE
LMX324
V
EE
IN1+
6
5
IN2+
IN2-
10 IN3+
OUT
IN-
IN2+
V
EE
9
8
IN3-
SC70-5/SOT23-5
SOT23-8/SO/µMAX
OUT3
OUT2
TSSOP/SO
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.