OPA379AIDBVR Datasheet, PDF (1/29 Pages) Texas Instruments – 1.8V, 2.9mA, 90kHz, Rail-to-Rail I/O PERATIONAL AMPLIFIERS

OPA379
OPA2379
OPA4379
OPA379
OPA2379
OPA4379
www.ti.com ................................................................................................................................................... SBOS347D – NOVEMBER 2005 – REVISED MAY 2008
1.8V, 2.9µA, 90kHz, Rail-to-Rail I/O
OPERATIONAL AMPLIFIERS
FEATURES
1
•2 LOW NOISE: 2.8µV_PP (0.1Hz - 10Hz)
• microPower: 5.5µA (max)
• LOW OFFSET VOLTAGE: 1.5mV (max)
• DC PRECISION:
– CMRR: 100dB
– PSRR: 2µV/V
– A_OL: 120dB
• WIDE SUPPLY VOLTAGE RANGE: 1.8V to 5.5V
• microSize PACKAGES:
– SC70-5, SOT23-5, SOT23-8, SO-8, TSSOP-14
APPLICATIONS
• BATTERY-POWERED INSTRUMENTS
• PORTABLE DEVICES
• MEDICAL INSTRUMENTS
• HANDHELD TEST EQUIPMENT
xxx
xxx
xxx
V_S
C
S
W
R₁
R₁
REF
1/2
OPA2379
C₁
R_B
C₂
R_L
R_F
V_S
1/2
OPA2379
V_OUT
DESCRIPTION
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.
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).
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.
xxx
xxx
xxx
xxx
Table 1. OPAx379 RELATED PRODUCTS
FEATURES
1µA, 70kHz, 2mV V_OS, 1.8V to 5.5V Supply
1µA, 5.5kHz, 390µV V_OS, 2.5V to 16V Supply
1µA, 5.5kHz, 0.6mV V_OS, 2.5V to 12V Supply
7µA, 160kHz, 0.5mV V_OS, 2.7V to 16V Supply
7µA, 160kHz, 0.5mV V_OS, 2.7V to 16V Supply
20µA, 350kHz, 2mV V_OS, 2.3V to 5.5V Supply
20µA, 500kHz, 550µV V_OS, 1.8V to 3.6V Supply
45µA, 1MHz, 1mV V_OS, 2.1V to 5.5V Supply
PRODUCT
OPAx349
TLV240x
TLV224x
TLV27Lx
TLV238x
OPAx347
TLV276x
OPAx348
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.
All trademarks are the property of their respective owners.
2
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