130 μV Maximum Offset Voltage

Op Amp in TSOT

AD8677

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

© 2005 Analog Devices, Inc. All rights reserved.

FEATURES

PIN CONFIGURATIONS

AD8677

TOP VIEW

(Not to Scale)

1

2

3

OUT

V–

+IN

5

4

V+

–IN

Low offset voltage: 130 μV max

Input offset drift: 1.5 μV/°C max

Low noise: 0.25 μV p-p

High gain, CMRR and PSRR: 115 dB min

Low supply current: 1.1 mA

Figure 1. 5-Lead TSOT (UJ-5)

Wide supply voltage range:

±4 V to ±18 V operation

NC = NO CONNECT

AD8677

TOP VIEW

(Not to Scale)

1

2

3

4

NULL

–IN

+IN

V–

8

7

6

5

NULL

V+

OUT

NC

APPLICATIONS

Medical and industrial instrumentation

Sensors and controls

Thermocouple

RTDs

Figure 2. 8-Lead SOIC_N (R-8)

Strain bridges

Shunt current measurements

Precision filters

GENERAL DESCRIPTION

The AD8677 is the next generation of precision, ultralow offset

amplifiers. It builds on the high performance of the OP07 and

integrates lower power (1.1 mA typical), lower input bias

current (±1 nA maximum), and higher CMRR/PSRR (130 dB)

in the small TSOT package. Operation is fully specified from ±5

V to ±15 V supply.

The AD8677 provides higher accuracy than industry-standard

OP07-type amplifiers due to Analog Devices’ iPolar™ process,

which supports enhanced performance in a smaller footprint.

These performance enhancements include wider output swing,

lower power, and higher CMRR (common-mode rejection

ratio) and PSRR (power supply rejection ratio). The AD8677

maintains stability of offsets and gain virtually regardless of

variations in time or temperature. Excellent linearity and gain

accuracy can be maintained at high closed-loop gains.

The AD8677 is fully specified over the extended industrial tem-

perature range of −40°C to +125°C. The AD8677 amplifier is

available in the tiny, 5-lead TSOT and the popular 8-lead,

narrow SOIC lead-free packages.