OPA379
OPA2379
OPA4379
www.ti.com ................................................................................................................................................... SBOS347D–NOVEMBER 2005–REVISED MAY 2008
1.8V, 2.9µA, 90kHz, Rail-to-Rail I/O
OPERATIONAL AMPLIFIERS
1
FEATURES
DESCRIPTION
2
•
•
•
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LOW NOISE: 2.8µVPP (0.1Hz - 10Hz)
The OPA379 family of micropower, low-voltage
operational amplifiers is designed for battery-powered
applications. These amplifiers operate on a supply
voltage as low as 1.8V (±0.9V). High-performance,
single-supply operation with rail-to-rail capability
(10µV max) makes the OPA379 family useful for a
wide range of applications.
microPower: 5.5µA (max)
LOW OFFSET VOLTAGE: 1.5mV (max)
DC PRECISION:
–
–
–
CMRR: 100dB
PSRR: 2µV/V
AOL: 120dB
In addition to microSize packages, the OPA379 family
of op amps features impressive bandwidth (90kHz),
low bias current (5pA), and low noise (80nV/√Hz)
relative to the very low quiescent current (5.5µA
max).
•
•
WIDE SUPPLY VOLTAGE RANGE: 1.8V to 5.5V
microSize PACKAGES:
–
SC70-5, SOT23-5, SOT23-8, SO-8, TSSOP-14
APPLICATIONS
The OPA379 (single) is available in SC70-5,
SOT23-5, and SO-8 packages. The OPA2379 (dual)
comes in SOT23-8 and SO-8 packages. The
OPA4379 (quad) is offered in a TSSOP-14 package.
All versions are specified from –40°C to +125°C.
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BATTERY-POWERED INSTRUMENTS
PORTABLE DEVICES
MEDICAL INSTRUMENTS
HANDHELD TEST EQUIPMENT
xxx
xxx
xxx
xxx
xxx
xxx
xxx
VS
Table 1. OPAx379 RELATED PRODUCTS
FEATURES
PRODUCT
OPAx349
TLV240x
TLV224x
TLV27Lx
TLV238x
OPAx347
TLV276x
OPAx348
1/2
C2
OPA2379
1µA, 70kHz, 2mV VOS, 1.8V to 5.5V Supply
1µA, 5.5kHz, 390µV VOS, 2.5V to 16V Supply
1µA, 5.5kHz, 0.6mV VOS, 2.5V to 12V Supply
7µA, 160kHz, 0.5mV VOS, 2.7V to 16V Supply
7µA, 160kHz, 0.5mV VOS, 2.7V to 16V Supply
20µA, 350kHz, 2mV VOS, 2.3V to 5.5V Supply
20µA, 500kHz, 550µV VOS, 1.8V to 3.6V Supply
45µA, 1MHz, 1mV VOS, 2.1V to 5.5V Supply
C1
C
RF
REF
S
VS
W
RB
RL
1/2
OPA2379
R1
VOUT
R1
Figure 1. OPA2379 in Portable Gas Meter
Application
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2008, Texas Instruments Incorporated