Burr-Brown, Texas Instruments, OPA277 OPA2277 OPA4277 pdf datasheet download

OPA277
OPA2277
OPA4277

High Precision
OPERATIONAL AMPLIFIERS

FEATURES

ULTRA LOW OFFSET VOLTAGE: 10μV
ULTRA LOW DRIFT: ±0.1μV/°C
HIGH OPEN-LOOP GAIN: 134dB
HIGH COMMON-MODE REJECTION: 140dB
HIGH POWER SUPPLY REJECTION: 130dB
LOW BIAS CURRENT: 1nA max
WIDE SUPPLY RANGE: ±2V to ±18V
LOW QUIESCENT CURRENT: 800μA/amplifier
SINGLE, DUAL, AND QUAD VERSIONS
REPLACES OP-07, OP-77, OP-177

APPLICATIONS

TRANSDUCER AMPLIFIER
BRIDGE AMPLIFIER
TEMPERATURE MEASUREMENTS
STRAIN GAGE AMPLIFIER
PRECISION INTEGRATOR
BATTERY POWERED INSTRUMENTS
TEST EQUIPMENT

DESCRIPTION

The OPA277 series precision op amps replace the industry
standard OP-177. They offer improved noise, wider output
voltage swing, and are twice as fast with half the quiescent
current. Features include ultra low offset voltage and drift, low
bias current, high common-mode rejection, and high power
supply rejection. Single, dual, and quad versions have identical
specifications for maximum design flexibility.
OPA277 series op amps operate from ±2V to ±18V supplies with
excellent performance. Unlike most op amps which are specified
at only one supply voltage, the OPA277 series is specified for
real-world applications; a single limit applies over the ±5V to
±15V supply range. High performance is maintained as the
amplifiers swing to their specified limits. Because the initial offset
voltage (±20μV max) is so low, user adjustment is usually not
required. However, the single version (OPA277) provides external
trim pins for special applications.
OPA277 op amps are easy to use and free from phase inversion
and overload problems found in some other op amps. They are
stable in unity gain and provide excellent dynamic behavior over
a wide range of load conditions. Dual and quad versions feature
completely independent circuitry for lowest crosstalk and freedom
from interaction, even when overdriven or overloaded.
Single (OPA277) and dual (OPA2277) versions are available
in DIP-8, SO-8, and DFN-8 (4mm x 4mm) packages. The quad
(OPA4277) comes in DIP-14 and SO-14 surface-mount packages.
All are fully specified from –40°C to +85°C and operate
from –55°C to +125°C.

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