19-2103; Rev 1; 10/06
Single/Dual/Quad, General-Purpose,
Low-Voltage, Rail-to-Rail Output Op Amps
General Description
Features
♦ Upgrade to LMV321/LMV358/LMV324 Family
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-
pose op amps. These devices offer rail-to-rail outputs
and an input common-mode range that extends below
ground. These op amps draw only 105µA of quiescent
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 prod-
uct 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.
♦ Single +2.3V to +7V Supply Voltage Range
♦ Available in Space-Saving Packages
5-Pin SC70 (LMX321)
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
♦ Input Common-Mode Voltage Range: V - 0.2V
EE
to V
- 0.8V
CC
®
or the 8-pin µMAX package. The LMX324 quad op amp
♦ Drives 2kΩ Resistive Loads
is available in 14-pin TSSOP and SO packages.
Ordering Information
Applications
PKG
CODE
PIN-
PACKAGE
PART
TEMP RANGE
Cellular Phones
X5-1
U5-1
K8-2
S8-2
Laptops
LMX321AXK-T
LMX321AUK-T
LMX358AKA-T
LMX358ASA
-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
5 SC70-5
5 SOT23-5
8 SOT23-8
8 SO
Low-Power, Low-Voltage Applications
Portable/Battery-Powered Equipment
Cordless Phones
U8-1
S14-4
U14-1
LMX358AUA-T
LMX324ASD
LMX324AUD
8 µMAX-8
14 SO
Active Filters
14 TSSOP
Selector Guide appears at end of data sheet.
Pin Configurations
TOP VIEW
OUT1
IN1-
1
2
3
4
5
6
7
OUT4
14
IN+
V
CC
1
2
3
5
4
OUT1
IN1-
V
CC
1
2
3
4
8
7
LMX321
LMX358
V
EE
OUT2
IN2-
IN4-
IN4+
13
12
OUT
IN1+
IN-
IN1+
6
5
SC70-5/SOT23-5
V
CC
11 V
EE
IN2+
V
EE
LMX324
SOT23-8/SO/µMAX
IN2+
IN2-
10 IN3+
9
8
IN3-
OUT3
OUT2
TSSOP/SO
________________________________________________________________ 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.