TDA8766 View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

TDA8766

10-bit high-speed 2.7 to 5.25 V analog-to-digital converter

Philips Electronics 

Philips Semiconductors

10-bit high-speed 2.7 to 5.25 V

analog-to-digital converter

Product specification

TDA8766

APPLICATION INFORMATION

Additional application information will be supplied upon request (please quote number “AN96012”).

handbook, full pagewidth

n.c.(2) D8 D7 D6 D5 D4 D3 D2

32

D9 1

31

30

29

28

27

26

25

24

n.c.(2)

IR 2

V SSD1

3

VDDD1 4

CLK 5

STDBY

6

VDDA 7

n.c.(2) 8

TDA8766

23 D1

D0

22

21 VSSO

VDDO

20

VSSD2

19

18 VDDD2

17 n.c.(2)

9

10 11 12 13 14 15 16

VSSA

100

nF

VRB(1) VRM(1) n.c.(2)

(3)

n.c.(2) VI (4)

100

nF

VRT(1) OE

MLC861

VSSA

100

nF

VSSA

VSSA

The analog and digital supplies should be separated and decoupled.

The external voltage reference generator must be built such that a good supply voltage ripple rejection is achieved with respect to the LSB value.

Eventually, the reference ladder voltages can be derived from a well regulated VDDA supply through a resistor bridge and a decoupled capacitor.

(1) VRB, VRM and VRT are decoupled to VSSA.

(2) Pins 8, 12, 13, 17, 24 and 32 should be connected to the closest ground pin in order to prevent noise influence.

(3) When VRM is not used, pin 11 can be left open, avoiding the decoupling capacitor. In any case, pin 11 must not be grounded.

(4) When analog input signal is AC coupled, an input bias or a clamping level must be applied to VI input (pin 14).

Fig.15 Application diagram.

1996 Mar 20

16

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