AD8671 AD8672 AD8674 Analog Devices, AD8671 AD8672 AD8674 Datasheet

AD8671 AD8672 AD8674

Manufacturer Part Number

AD8671 AD8672 AD8674

Description

Precision, Very Low Noise, Low Input Bias Current Operational Amplifiers

Manufacturer

Analog Devices

Datasheet

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FEATURES

Very low noise: 2.8 nV/√Hz, 77 nV p-p

Wide bandwidth: 10 MHz

Low input bias current: 12 nA max

Low offset voltage: 75 µV max

High open-loop gain: 120 dB min

Low supply current: 3 mA per amplifier

Dual-supply operation: ±5 V to ±15 V

Unity gain stable

No phase reversal

APPLICATIONS

PLL filters

Filters for GPS

Instrumentation

Sensors and controls

Professional quality audio

GENERAL DESCRIPTION

The AD8671/AD8672/AD8674 are very high precision

amplifiers featuring very low noise, very low offset voltage and

drift, low input bias current, 10 MHz bandwidth, and low power

consumption. Outputs are stable with capacitive loads of over

1000 pF. Supply current is less than 3 mA per amplifier at 30 V.

The AD8671’s combination of ultralow noise, high precision,

speed, and stability is unmatched, while the MSOP version

requires only half the board space of comparable amplifiers.

Applications for these amplifiers include high quality PLL

filters, precision filters, medical and analytical instrumentation,

precision power supply controls, ATE, data acquisition, and

precision controls as well as professional quality audio.

The AD8671/AD8672/AD8674 are specified over the extended

industrial (–40°C to +125°C) temperature range.

The AD8671/AD8672 are available in the 8-lead SOIC and

8-lead MSOP packages. The AD8674 is available in 14-lead

SOIC and 14-lead TSSOP packages.

Surface-mount devices in MSOP packages are available in tape

and reel only.

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable.

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

Precision, Very Low Noise, Low Input

Bias Current Operational Amplifiers

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

Tel: 781.329.4700

Fax: 781.326.8703

OUT A

OUT B

OUT A

–IN A

+IN A

+IN B

–IN B

+IN A

–IN A

–IN

+IN

Figure 5. 14-Lead SOIC (R Suffix)

V–

Figure 1. 8-Lead SOIC (R Suffix)

Figure 3. 8-Lead SOIC (R Suffix)

V+

V–

NC = NO CONNECT

(Not to Scale)

TOP VIEW

(Not to Scale)

AD8671

TOP VIEW

AD8674

TOP VIEW

AD8672

PIN CONFIGURATIONS

AD8671/AD8672/AD8674

V+

OUT

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

V+

OUT B

–IN B

+IN B

OUT A

OUT B

OUT A

Figure 6. 14-Lead TSSOP (RU Suffix)

Figure 2. 8-Lead MSOP (RM Suffix)

Figure 4. 8-Lead MSOP (RM Suffix)

–IN A

+IN A

+IN B

–IN B

–IN A

+IN A

–IN

+IN

V–

V+

V–

NC = NO CONNECT

(Not to Scale)

TOP VIEW

(Not to Scale)

AD8671

TOP VIEW

AD8674

TOP VIEW

AD8672

www.analog.com

V+

OUT

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

V+

OUT B

–IN B

+IN B

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