OPA277_05 Datasheet, PDF (1/25 Pages) Burr-Brown (TI) – High Precision OPERATIONAL AMPLIFIERS

OPA277
OPA2277
OPA4277
OPA277
OPA277
OPA2277
OPA2277
OPA4277
OPA277
OPA2277
OPA4277
SBOS079A – MARCH 1999 – REVISED APRIL 2005
High Precision
OPERATIONAL AMPLIFIERS
FEATURES
DESCRIPTION
q ULTRA LOW OFFSET VOLTAGE: 10µV
q ULTRA LOW DRIFT: ±0.1µV/°C
q HIGH OPEN-LOOP GAIN: 134dB
q HIGH COMMON-MODE REJECTION: 140dB
q HIGH POWER SUPPLY REJECTION: 130dB
q LOW BIAS CURRENT: 1nA max
q WIDE SUPPLY RANGE: ±2V to ±18V
q LOW QUIESCENT CURRENT: 800µA/amplifier
q SINGLE, DUAL, AND QUAD VERSIONS
q REPLACES OP-07, OP-77, OP-177
APPLICATIONS
q TRANSDUCER AMPLIFIER
q BRIDGE AMPLIFIER
q TEMPERATURE MEASUREMENTS
q STRAIN GAGE AMPLIFIER
q PRECISION INTEGRATOR
q BATTERY POWERED INSTRUMENTS
q TEST EQUIPMENT
OPA277
Offset Trim 1
–In 2
8 Offset Trim
7 V+
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 exter-
nal 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 free-
dom 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 pack-
ages. All are fully specified from –40°C to +85°C and operate
from –55°C to +125°C.
OPA277AIDRM
+In 3
6 Output
V– 4
5 NC
8-Pin DIP, SO-8
Out A 1
–In A 2
+In A 3
V+ 4
OPA4277
A
D
14 Out D
13 –In D
12 +In D
11 V–
OPA2277AIDRM
Offset Trim 1
−In 2
+In 3
V− 4
Pin 1
Indicator
8 Offset Trim
7 V+
6 Output
5 NC
Out A 1
–In A 2
+In A 3
OPA2277
A
B
+In B 5
–In B 6
Out B 7
8 V+
7 Out B
6 –In B
B
C
14-Pin DIP, SO-14
10 +In C
9 –In C
8 Out C
Out A 1
−In A 2
+In A 3
V− 4
Pin 1
Indicator
8 Out B
7 V+
6 −In B
5 +In B
DFN-8 4mm x 4mm
(top view)
Thermal Pad
on Bottom
(Connect to V−)
V– 4
5 +In B
8-Pin DIP, SO-8
NC = No connection.
DFN-8 4mm x 4mm
(top view)
Thermal Pad
on Bottom
(Connect to V−)
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PRODUCTION DATA information is current as of publication date.
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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