AU5517D Просмотр технического описания (PDF) - Philips Electronics

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AU5517D

Dual operational transconductance amplifier

Philips Electronics 

Philips Semiconductor

Dual operational transconductance amplifier

Product data

NE5517/NE5517A/

AU5517

DESCRIPTION

The AU5517 and NE5517 contain two current-controlled

transconductance amplifiers, each with a differential input and

push-pull output. The AU5517/NE5517 offers significant design and

performance advantages over similar devices for all types of

programmable gain applications. Circuit performance is enhanced

through the use of linearizing diodes at the inputs which enable a

10 dB signal-to-noise improvement referenced to 0.5% THD. The

AU5517/NE5517 is suited for a wide variety of industrial and

consumer applications.

Constant impedance buffers on the chip allow general use of the

AU5517/NE5517. These buffers are made of Darlington transistors

and a biasing network that virtually eliminate the change of offset

voltage due to a burst in the bias current IABC, hence eliminating the

audible noise that could otherwise be heard in high quality audio

applications.

FEATURES

• Constant impedance buffers

• ∆VBE of buffer is constant with amplifier IBIAS change

• Excellent matching between amplifiers

• Linearizing diodes

• High output signal-to-noise ratio

APPLICATIONS

• Multiplexers

• Timers

• Electronic music synthesizers

• Dolby™ HX Systems

• Current-controlled amplifiers, filters

• Current-controlled oscillators, impedances

ORDERING INFORMATION

DESCRIPTION

16-Pin Plastic Dual In-Line Package (DIP)

16-Pin Plastic Dual In-Line Package (DIP)

16-Pin Small Outline (SO) Package

16-Pin Small Outline (SO) Package

PIN CONFIGURATION

N, D Packages

IABCa 1

Da 2

+INa 3

–INa 4

VOa 5

V– 6

INBUFFERa 7

VOBUFFERa 8

16 IABCb

15 Db

14 +INb

13 –INb

12 VOb

11 V+

10 INBUFFERb

9 VOBUFFERb

Top View

SL00306

Figure 1. Pin Configuration

PIN DESIGNATION

PIN NO. SYMBOL

1

IABCa

2

Da

3

+INa

4

–INa

5

VOa

6

V–

7

INBUFFERa

8

VOBUFFERa

9

VOBUFFERb

10

INBUFFERb

11

V+

12

VOb

13

–INb

14

+INb

15

Db

16

IABCb

NAME AND FUNCTION

Amplifier bias input A

Diode bias A

Non-inverting input A

Inverting input A

Output A

Negative supply

Buffer input A

Buffer output A

Buffer output B

Buffer input B

Positive supply

Output B

Inverting input B

Non-inverting input B

Diode bias B

Amplifier bias input B

TEMPERATURE RANGE

0 to +70 °C

0 to +70 °C

0 to +70 °C

–40 to +125 °C

ORDER CODE

NE5517N

NE5517AN

NE5517D

AU5517D

DWG #

SOT38-4

SOT38-4

SOT109-1

SOT109-1

Dolby is a registered trademark of Dolby Laboratories Inc., San Francisco, Calif.

2002 Dec 06

2

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