廬
OPA
277
OPA
227
7
OPA
4277
OPA
277
OPA
2277
OPA
427
7
OPA277
OPA2277
OPA4277
For most current data sheet and other product
information, visit www.burr-brown.com
High Precision
OPERATIONAL AMPLIFIERS
FEATURES
q
ULTRA LOW OFFSET VOLTAGE: 10
碌
V
q
ULTRA LOW DRIFT:
鹵
0.1
碌
V/
擄
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:
鹵
2V to
鹵
18V
q
LOW QUIESCENT CURRENT: 800
碌
A/amp
q
SINGLE, DUAL, AND QUAD VERSIONS
q
REPLACES OP-07, OP-77, OP-177
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
鹵2V
to
鹵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 ap-
plies over the
鹵5V
to
鹵15V
supply range. High performance
is maintained as the amplifiers swing to their specified limits.
Because the initial offset voltage (鹵20碌V 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 over-
loaded.
Single (OPA277) and dual (OPA2277) versions are available
in 8-pin DIP and SO-8 surface-mount packages. The quad
(OPA4277) comes in 14-pin DIP and SO-14 surface-mount
packages. All are fully specified from 鈥?0擄C to +85擄C and
operate from 鈥?5擄C to +125擄C.
OPA4277
Out A
1
2
A
D
12
11
10
B
鈥揑n B
6
7
14-Pin DIP, SO-14
C
9
8
鈥揑n C
Out C
+In D
V鈥?/div>
+In C
3
4
5
14
13
Out D
鈥揑n D
APPLICATIONS
q
q
q
q
q
q
q
TRANSDUCER AMPLIFIER
BRIDGE AMPLIFIER
TEMPERATURE MEASUREMENTS
STRAIN GAGE AMPLIFIER
PRECISION INTEGRATOR
BATTERY POWERED INSTRUMENTS
TEST EQUIPMENT
OPA277
Offset Trim
鈥揑n
+In
V鈥?/div>
1
2
3
4
8-Pin DIP, SO-8
8
7
6
5
Offset Trim
V+
Output
NC
OPA2277
1
2
3
4
8-Pin DIP, SO-8
A
B
8
7
6
5
鈥揑n A
Out A
鈥揑n A
+In A
V鈥?/div>
V+
Out B
鈥揑n B
+In B
+In A
V+
+In B
Out B
IInternational Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111
Twx: 910-952-1111 鈥?Internet: http://www.burr-brown.com/ 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
漏 1997 Burr-Brown Corporation
PDS-1413D
Printed in U.S.A. March, 1999
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