OPA334
OPA2334
O
P
A
3
3
5
O
P
A
2
3
3
5
O
P
A
2
3
3
4
O
P
A
2
3
3
5
OPA335
OPA2335
SBOS245D – JUNE 2002 – REVISED JULY 2003
0.05µV/°C max, SINGLE-SUPPLY
CMOS OPERATIONAL AMPLIFIERS
Zerø-Drift Series
FEATURES
DESCRIPTION
The OPA334 and OPA335 series of CMOS operational
amplifiers use auto-zeroing techniques to simultaneously
provide very low offset voltage (5µV max), and near-zero drift
over time and temperature. These miniature, high-precision,
low quiescent current amplifiers offer high input impedance
and rail-to-rail output swing. Single or dual supplies as low as
+2.7V (±1.35V) and up to +5.5V (±2.75V) may be used.
These op amps are optimized for low-voltage, single-supply
operation.
● LOW OFFSET VOLTAGE: 5µV (max)
● ZERO DRIFT: 0.05µV/°C (max)
● QUIESCENT CURRENT: 285µA
● SINGLE-SUPPLY OPERATION
● SINGLE AND DUAL VERSIONS
● SHUTDOWN
● MicroSIZE PACKAGES
The OPA334 family includes a shutdown mode. Under logic
control, the amplifiers can be switched from normal operation
to a standby current of 2µA. When the Enable pin is con-
nected high, the amplifier is active. Connecting Enable low
disables the amplifier, and places the output in a high-
impedance state.
APPLICATIONS
● TRANSDUCER APPLICATIONS
● TEMPERATURE MEASUREMENT
● ELECTRONIC SCALES
● MEDICAL INSTRUMENTATION
● BATTERY-POWERED INSTRUMENTS
● HANDHELD TEST EQUIPMENT
The OPA334 (single version with shutdown) comes in
MicroSIZE SOT23-6. The OPA335 (single version without
shutdown) is available in SOT23-5, and SO-8. The OPA2334
(dual version with shutdown) comes in MicroSIZE MSOP-10.
The OPA2335 (dual version without shutdown) is offered in
the MSOP-8 and SO-8 packages. All versions are specified
for operation from –40°C to +125°C.
OFFSET VOLTAGE PRODUCTION DISTRIBUTION
OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION
Absolute Value;
Centered Around Zero
Offset Voltage (µV)
Offset Voltage Drift (µV/°C)
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2002-2003, Texas Instruments Incorporated
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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