REV. 0

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reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

a

AD8614/AD8644

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

Tel: 781/329-4700

World Wide Web Site: http://www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 1999

Single and Quad +18 V

Operational Amplifiers

PIN CONFIGURATIONS

5-Lead SOT-23

(RT Suffix)

1

2

3

5

4

IN

+IN

V+

OUT A

AD8614

V

14-Lead TSSOP

(RU Suffix)

OUT A

IN A

IN A

V

IN D

IN D

V

OUT D

114

IN B

IN B

OUT B

IN C

OUT C

IN C

78

AD8644

14-Lead Narrow Body SO

(R Suffix)

14

13

12

11

10

9

8

1

2

3

4

5

6

7

–IN A

+IN A

V+

+IN B

–IN B

OUT B

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

OUT A

AD8644

FEATURES

Unity Gain Bandwidth: 5.5 MHz

Low Voltage Offset: 1.0 mV

Slew Rate: 7.5 V/ s

Single-Supply Operation: 5 V to 18 V

High Output Current: 70 mA

Low Supply Current: 800

A/Amplifier

Stable with Large Capacitive Loads

Rail-to-Rail Inputs and Outputs

APPLICATIONS

Modems

Portable Instrumentation

Direct Access Arrangement

GENERAL DESCRIPTION

The AD8614 (single) and AD8644 (quad) are single-supply,

5.5 MHz bandwidth, rail-to-rail amplifiers optimized for LCD

monitor applications.

They are processed using Analog Devices high voltage, high speed,

complementary bipolar process—HV XFCB. This proprietary

process includes trench isolated transistors that lower internal

parasitic capacitance which improves gain bandwidth, phase mar-

gin and capacitive load drive. The low supply current of 800

µA

(typ) per amplifier is critical for portable or densely packed designs.

In addition, the rail-to-rail output swing provides greater dynamic

range and control than standard video amplifiers provide.

These products operate from supplies of 5 V to as high as

18 V. The unique combination of an output drive of 70 mA,

high slew rates, and high capacitive drive capability makes the

AD8614/AD8644 an ideal choice for LCD applications.

The AD8614 and AD8644 are specified over the temperature

range of –20

°C to +85°C. They are available in 5-lead SOT-23,

14-lead TSSOP and 14-lead SOIC surface mount packages in

tape and reel.