Файл:AD8531, AD8532, AD8534.pdf

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a FEATURES Single-Supply Operation: 2.7 Volts to 6 Volts High Output Current: ؎250 mA Low Supply Current: 750 ␮A/Amplifier Wide Bandwidth: 3 MHz Slew Rate: 5 V/␮s No Phase Reversal Low Input Currents Unity Gain Stable

Low Cost, 250 mA Output Single-Supply Amplifiers AD8531/AD8532/AD8534 PIN CONFIGURATIONS 8-Lead SO 5-Lead SOT (R Suffix) (RT Suffix) NULL

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8

NC

OUT A

3

–IN A

2

7

V+

V–

4

3 (Not to Scale) 6

OUT A

+IN A

+IN A

5

4

NULL

V–

APPLICATIONS Multimedia Audio LCD Driver ASIC Input or Output Amplifier Headphone Driver

AD8531

5

The very low input bias currents enable the AD853x to be used for integrators and diode amplification and other applications requiring low input bias current. Supply current is only 750 µA per amplifier at 5 volts, allowing low current applications to control high current loads. Applications include audio amplification for computers, sound ports, sound cards and setop boxes. AD853x family is very stable and capable of driving heavy capacitive loads, such as those found in LCDs.

1

–IN A

8-Lead Epoxy DIP (N Suffix)

1

8

V+

–IN A

The AD8531, AD8532 and AD8534 are single, dual and quad rail-to-rail input and output single-supply amplifiers featuring 250 mA output drive current. This high output current makes these amplifiers excellent for driving either resistive or capacitive loads. AC performance is very good with 3 MHz bandwidth, 5 V/µs slew rate and low distortion. All are guaranteed to operate from a +3 volt single supply as well as a +5 volt supply.

V+

AD8531

8-Lead SO (R Suffix) OUT A

GENERAL DESCRIPTION

2

2

7

OUT B

+IN A

3 (Not to Scale) 6

–IN B

4

+IN B

AD8532

OUT A

AD8532

1

8

V+

(Not to Scale)

5

2

7

OUT B

+IN A

3

6

–IN B

V–

V–

–IN A

4

5

+IN B

8-Lead TSSOP (RU Suffix) OUT A –IN A +IN A V–

1

8

AD8532 4

5

V+ OUT B –IN B +IN B

14-Lead Narrow-Body SO (R Suffix)

14-Lead Epoxy DIP (N Suffix)

The AD8531, AD8532 and AD8534 are specified over the extended industrial (–40°C to +85°C) temperature range. The AD8531 is available in SO-8 and SOT23-5 packages. The AD8532 is available in 8-pin plastic DIPs, SO-8 and 8-lead TSSOP surface mount packages. The AD8534 is available in 14-pin plastic DIPs, narrow SO-14 are 14-lead TSSOP surface mount packages. All TSSOP and SOT versions are available in tape and reel only.

–IN A

2 3

12 +IN D

V+

4

+IN B

5

14

OUT D

2

13

–IN D

(Not to Scale) 12 3

+IN D

13 –IN D

+IN A

1

+IN A

The ability to swing rail-to-rail at the inputs and outputs enables designers to buffer CMOS DACs, ASICs or other wide output swing devices in single-supply systems.

14 OUT D

1

OUT A –IN A

OUT A

(Not to Scale)

11 V– 10 +IN C

–IN B

6

9

7

8

11

+IN B

V–

5

10

+IN C

–IN B

6

9

–IN C

7

8

OUT C

(Not to Scale)

–IN C

OUT B

4

AD8534

OUT B

AD8534

V+

AD8534

OUT C

14-Lead TSSOP (RU Suffix) OUT A –IN A +IN A V+ +IN B –IN B OUT B

1

14

AD8532 AD8534 7

8

OUT D –IN D +IN D V– +IN C –IN C OUT C

REV. 0 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

© Analog Devices, Inc., 1996 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703


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