AD5432 datasheet(19/24 Pages) AD

19 / 24 page

REV. 0

AD5426/AD5432/AD5443

–19–

VDD

VSS

VOUT

P1–13

P1–5

P1–4

P1–2

P1–3

P1–19

P1–20

P1–21

P1–22

P1–23

P1–24

P1–25

P1–26

P1–27

P1–28

P1–29

P1–30

SCLK

SDIN

SYNC

LDAC

SCLK

SDIN

SYNC

SDO/

LDAC

SCLK

SDIN

SYNC

SDO/

LDAC

SDO

GND

IOUT2

VDD

RFB

VREF

VDD1

VREF

VDD

+VIN

VOUT

TRIM

GND

IOUT1

AD5426/

AD5432/

AD5443

4.7pF

0.1 F

10 F

0.1 F

P2–3

P2–2

P2–1

P2–4

AGND

VSS

VDD1

VDD

C11

0.1 F

C12

10 F

0.1 F

C13

0.1 F

C14

10 F

C15

0.1 F

C16

10 F

ADR01AR

V–

V+

10 F

C10 0.1 F

TP1

R1 = 0

AD8065AR

LK2

LK1

Figure 19. Schematic of AD5426/AD5432/AD5443 Evaluation Board

EVALUATION BOARD FOR THE AD5426/AD5432/AD5443

SERIES OF DACS

The board consists of a 12-bit AD5443 and a current to voltage

amplifier AD8065. Included on the evaluation board is a 10 V

reference ADR01. An external reference may also be applied via

an SMB input.

The evaluation kit consists of a CD-ROM with self-installing

PC software to control the DAC. The software simply allows

the user to write a code to the device.

OPERATING THE EVALUATION BOARD

Power Supplies

The board requires

±12 V, and +5 V supplies. The +12 V V

and VSS are used to power the output amplifier, while the +5 V

is used to power the DAC (VDD1) and transceivers (VCC).

Both supplies are decoupled to their respective ground plane

with 10

F tantalum and 0.1

F ceramic capacitors.

Link1 (LK1) is provided to allow selection between the on-board

reference (ADR01) or an external reference applied through J2.

For the AD5426/AD5432/AD5443 use Link2 in the SDO position.

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