OPA734_07 Datasheet, PDF (1/23 Pages) Burr-Brown (TI) – 0.05uV/˚C max, SINGLE-SUPPLY CMOS OPERATIONAL AMPLIFIERS

OPA734, OPA2734
OPA735, OPA2735
SBOS282B − DECEMBER 2003 − REVISED FEBRUARY 2005
0.05µV/°C max, SINGLE-SUPPLY CMOS
OPERATIONAL AMPLIFIERS
Zer∅-Drift Series
FEATURES
D LOW OFFSET VOLTAGE: 5µV (max)
D ZERO DRIFT: 0.05µV/°C max
D QUIESCENT CURRENT: 750µA (max)
D SINGLE-SUPPLY OPERATION
D LOW BIAS CURRENT: 200pA (max)
D SHUTDOWN
D MicroSIZE PACKAGES
D WIDE SUPPLY RANGE: 2.7V to 12V
APPLICATIONS
D TRANSDUCER APPLICATIONS
D TEMPERATURE MEASUREMENTS
D ELECTRONIC SCALES
D MEDICAL INSTRUMENTATION
D BATTERY-POWERED INSTRUMENTS
D HANDHELD TEST EQUIPMENT
V_REF = 15V
REF102
10V
DESCRIPTION
The OPA734 and OPA735 series of CMOS operational
amplifiers use auto-zeroing techniques to simultaneously
provide low offset voltage (5µV max) and near-zero drift
over time and temperature. These miniature, high-preci-
sion, low quiescent current amplifiers offer high input
impedance and rail-to-rail output swing within 50mV of the
rails. Either single or bipolar supplies can be used in the
range of +2.7V to +12V (±1.35V to ±6V). They are
optimized for low-voltage, single-supply operation.
The OPA734 family includes a shutdown mode. Under
logic control, the amplifiers can be switched from normal
operation to a standby current that is 9µA (max) and the
output placed in a high-impedance state.
The single version is available in the MicroSIZE SOT23-5
(SOT23-6 for shutdown version) and the SO-8 packages.
The dual version is available in the MSOP-8 and SO-8
packages (MSOP-10 only for the shutdown version). All
versions are specified for operation from −40°C to +85°C.
G
=
1
+2
R₃
R_G
R₁
1kΩ
C₁
1nF
C₂
10nF
R_G
1/2
O P A 27 3 5
R₃
10kΩ
C₄
1nF
C₄
1nF
R₃
10kΩ
R₂
1kΩ
C₃
1nF
1/2
O P A 27 3 5
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