Datasheet
LM7321, LM7322
www.ti.com
SNOSAW8D –MAY 2008–REVISED MARCH 2013
LM7321/LM7321Q Single/ LM7322/LM7322Q Dual Rail-to-Rail Input/Output ±15V, High
Output Current and Unlimited Capacitive Load Operational Amplifier
Check for Samples: LM7321, LM7322
1
FEATURES
DESCRIPTION
The LM7321/LM7321Q/LM7322/LM7322Q are rail-to-
2
• (V
S
= ±15, T
A
= 25°C, Typical Values Unless
rail input and output amplifiers with wide operating
Specified.)
voltages and high output currents. The
• Wide Supply Voltage Range 2.5V to 32V
LM7321/LM7321Q/LM7322/LM7322Q are efficient,
• Output Current +65 mA/−100 mA
achieving 18 V/µs slew rate and 20 MHz unity gain
bandwidth while requiring only 1 mA of supply current
• Gain Bandwidth Product 20 MHz
per op amp. The
• Slew Rate 18 V/µs
LM7321/LM7321Q/LM7322/LM7322Q performance is
• Capacitive Load Tolerance Unlimited
fully specified for operation at 2.7V, ±5V and ±15V.
• Input Common Mode Voltage 0.3V Beyond
The LM7321/LM7321Q/LM7322/LM7322Q are
Rails
designed to drive unlimited capacitive loads without
oscillations. All LM7321/LM7321Q and
• Input Voltage Noise 15 nV/√Hz
LM7322/LM732Q parts are tested at −40°C, 125°C,
• Input Current Noise 1.3 pA/√Hz
and 25°C, with modern automatic test equipment.
• Supply Current/Channel 1.1 mA
High performance from −40°C to 125°C, detailed
• Distortion THD+Noise −86 dB
specifications, and extensive testing makes them
suitable for industrial, automotive, and
• Temperature Range −40°C to 125°C
communications applications.
• Tested at −40°C, 25°C and 125°C at 2.7V, ±5V,
Greater than rail-to-rail input common mode voltage
±15V.
range with 50 dB of common mode rejection across
• LM7321Q/LM7322Q are Automotive Grade
this wide voltage range, allows both high side and low
Products that are AEC-Q100 Grade 1 Qualified.
side sensing. Most device parameters are insensitive
to power supply voltage, and this makes the parts
APPLICATIONS
easier to use where supply voltage may vary, such as
automotive electrical systems and battery powered
• Driving MOSFETs and Power Transistors
equipment. These amplifiers have true rail-to-rail
• Capacitive Proximity Sensors
output and can supply a respectable amount of
• Driving Analog Optocouplers
current (15 mA) with minimal head- room from either
rail (300 mV) at low distortion (0.05% THD+Noise).
• High Side Sensing
There are several package options for each part.
• Below Ground Current Sensing
Standard SOIC versions of both parts make
• Photodiode Biasing
upgrading existing designs easy. LM7322LM7322Q
are offered in a space saving 8-Pin VSSOP package.
• Driving Varactor Diodes in PLLs
The LM7321/LM7321Q are offered in small SOT-23
• Wide Voltage Range Power supplies
package, which makes it easy to place this part close
• Automotive
to sensors for better circuit performance.
• International Power Supplies
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2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008–2013, 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.