Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Multi-purpose PDIP 8

1990 Burr-Brown Corporation PDS-1081E Printed in U.S.A. August, 1997

OPA177

FEATURES

● LOW OFFSET VOLTAGE: 25µV max

● LOW DRIFT: 0.3

µV/°C

● HIGH OPEN-LOOP GAIN: 130dB min

● LOW QUIESCENT CURRENT: 1.5mA typ

● REPLACES INDUSTRY-STANDARD OP

AMPS: OP-07, OP-77, OP-177, AD707,

ETC.

APPLICATIONS

● PRECISION INSTRUMENTATION

● DATA ACQUISITION

● TEST EQUIPMENT

● BRIDGE AMPLIFIER

● THERMOCOUPLE AMPLIFIER

Precision

OPERATIONAL AMPLIFIER

14kΩ

500Ω

Trim

V+

Trim

+In

–In

V–

25Ω

30Ω

20µA

500Ω

DESCRIPTION

The OPA177 precision bipolar op amp feature very

low offset voltage and drift. Laser-trimmed offset,

drift and input bias current virtually eliminate the need

for costly external trimming. The high performance

and low cost make them ideally suited to a wide range

of precision instrumentation.

The low quiescent current of the OPA177 dramati-

cally reduce warm-up drift and errors due to thermo-

electric effects in input interconnections. It provides

an effective alternative to chopper-stabilized amplifi-

ers. The low noise of the OPA177 maintains accuracy.

OPA177 performance gradeouts are available. Pack-

aging options include 8-pin plastic DIP

and SO-8 surface-mount packages.

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111

Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

OPA177

SBOS008

Summary of content (11 pages)

PAGE 1
® OPA 177 OPA177 OPA 177 Precision OPERATIONAL AMPLIFIER FEATURES APPLICATIONS ● LOW OFFSET VOLTAGE: 25µV max ● LOW DRIFT: 0.3µV/°C ● PRECISION INSTRUMENTATION ● DATA ACQUISITION ● HIGH OPEN-LOOP GAIN: 130dB min ● LOW QUIESCENT CURRENT: 1.5mA typ ● TEST EQUIPMENT ● BRIDGE AMPLIFIER ● REPLACES INDUSTRY-STANDARD OP AMPS: OP-07, OP-77, OP-177, AD707, ETC. ● THERMOCOUPLE AMPLIFIER DESCRIPTION The OPA177 precision bipolar op amp feature very low offset voltage and drift.
PAGE 2
OPA177 SPECIFICATIONS At VS = ±15V, TA = +25°C, unless otherwise noted. OPA177F PARAMETER CONDITION OFFSET VOLTAGE Input Offset Voltage Long-Term Input Offset(1) Voltage Stability Offset Adjustment Range Power Supply Rejection Ratio RP = 20kΩ VS = ±3V to ±18V MIN 115 INPUT BIAS CURRENT Input Offset Current Input Bias Current NOISE Input Noise Voltage Input Noise Current INPUT IMPEDANCE Input Resistance 1Hz to 100Hz(2) 1Hz to 100Hz Differential Mode(3) Common-Mode TYP MAX 10 0.
PAGE 3
PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS Top View Power Supply Voltage ....................................................................... ±22V Differential Input Voltage ................................................................... ±30V Input Voltage ....................................................................................... ±VS Output Short Circuit ................................................................. Continuous Operating Temperature: Plastic DIP (P), SO-8 (S) ......
PAGE 4
TYPICAL PERFORMANCE CURVES At TA = +25°C, VS = ±15V, unless otherwise noted. TOTAL HARMONIC DISTORTION AND NOISE vs FREQUENCY MAXIMUM VOUT vs IOUT (Negative Swing) 1 –17.5 A = 20dB, 3Vrms, 10kΩ load Inverting Noninverting VS = ±18V –12.5 VS = ±15V –10 VS = ±12V VOUT (V) THD + N (%) 0.1 –15 –7.5 0.01 –5 VS = ±15V –2.5 30kHz low pass filtered 0.001 0 1k 10k 100k 0 –2 –4 –6 Frequency (Hz) MAXIMUM VOUT vs IOUT (Positive Swing) –10 –12 WARM-UP OFFSET VOLTAGE DRIFT 3 17.
PAGE 5
TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = ±15V, unless otherwise noted. CMRR vs FREQUENCY OPEN-LOOP GAIN/PHASE vs FREQUENCY 160 0 Gain 140 45 100 Phase 80 90 60 40 135 130 CMRR (dB) 120 Phase Shift (Degrees) Open-Loop Gain (dB) 140 150 110 100 90 20 0 0.01 180 0.
PAGE 6
TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = ±15V, unless otherwise noted.
PAGE 7
APPLICATIONS INFORMATION V+ The OPA177 is unity-gain stable, making it easy to use and free from oscillations in the widest range of circuitry. Applications with noisy or high impedance power supply lines may require decoupling capacitors close to the device pins. In most cases 0.1µF ceramic capacitors are adequate. The OPA177 has very low offset voltage and drift. To achieve highest performance, circuit layout and mechanical conditions must be optimized.
PAGE 8
PACKAGE OPTION ADDENDUM www.ti.
PAGE 9
PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device OPA177GS/2K5 Package Package Pins Type Drawing SOIC D 8 SPQ Reel Reel Diameter Width (mm) W1 (mm) 2500 330.0 12.4 Pack Materials-Page 1 A0 (mm) B0 (mm) K0 (mm) P1 (mm) 6.4 5.2 2.1 8.0 W Pin1 (mm) Quadrant 12.
PAGE 10
PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA177GS/2K5 SOIC D 8 2500 346.0 346.0 29.
PAGE 11
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