AD9712 查看數據表（PDF） - Analog Devices

零件编号

产品描述 (功能)

生产厂家

AD9712

12-Bit, 100 MSPS D/A Converters

Analog Devices 

ANALOGDEVICES fAX-ON-DEMAND HOTLINE - Page 26

AD9713/AD9713

AD911Z1AD971P3IN DESCRIPTIONS

Pia

No. Name

Fanctioll

1-10 D2-D11

11 D12 (LSB)

Ten of twelve digital input bits.

Least Significant Bit (LSB) of digital input word.

12 DIGITAL -Vs

One of two negative digital supply pins; nominally -5.2 V.

13 ANALOG RETURN

Analog ground retUrn. This point and the reference side of the

DAC load resistors should be connected to the same potential

(nominally ground).

14 loUT

Analog current output; full-scale output occurs with digital

inputs at all "I."

15 ANALOG -Vs

One of two negative analog supply pins; nominally -5.2 V.

16 loUT

Complementary analog current output; zero scale output occurs

OBSOLETE with digital inputs at all"1."

17 REFERENCE IN

Normally connected to CONTROL AMP OUT (Pin 18). Direct

line to DAC current switch network. Voltage changes at this

point have a direct effect on the full-scale output. Full-scale

current output"" 128 (Reference voltageIRsET) when using

internal amplifier.

18 CONTROL AMP OUT Normallyoonnected to REFERENCE IN (pin 17). Output of

internal control amplifier, which provides a temperature

oompensated drive level to the current switch network.

19 CONTROL AMP IN

Normally connected to REFERENCE OUT (pin 20) if not

connected to external reference. Full-scale current out = 128

(Reference voltageIRsET) when using internal amplifier.

20 REFERENCE OUT

Normally connected to CONTROL AMP IN (pin 19). Internal

voltage reference, nominally -1.26 V.

21 DIGITAL -Vs

One of two negative digital supply pins; nominally - 5.2 V.

22 REFERENCE GROUND Ground return for the internal voltage reference and amplifier.

23 DIGITAL +Vs

Positive digital supply pin; used only on the AD9713; nominally

+5V.

24 RsET

Connection for external resistance reference. Full-scale current

= out 128 (Reference voltagelRsET) when using internal

amplifier.

25 ANALOG -Vs

26 LATCH ENABLE

27 DIGITAL GROUND

28 D1 (MSB)

One of two negative analog supply pins; nominally -5.2 V.

Transparent latch coDtrolline.

Digital ground retUrn.

Most Significant Bit (MSB) of digital input word.

LATCH ENABLE

DATA HOUrS

OUTPUT

LATCH

ENABLE

OUTPUT

ERROR

./

AD97121AD9713 Timing Diagram

t..t-.- LATCHPULSEWIOTIf

- INPUTSETUPTIIE

- t .. - INPUT HOLD TIME

I ST OUT'POT SETTUHO TIME

- t I'D OUT'POT PROPAGA11ON

DELAY

-4-

REV. A

---~

Share Link: