Octal, 13-Bit Voltage-Output

DAC with Parallel Interface

6

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PLCC

NAME

1

–

C

—

L

—

R

–

Clear Input (active low). Driving this asynchronous input low sets the content of all latches to

1000hex. All DAC outputs are reset to AGND_.

3

REFCD

Reference Voltage Input for DAC C and DAC D. Bypass to AGNDCD with a 0.1µF to 1µF capacitor.

2

AGNDCD

Analog Ground for DAC C and DAC D

7

VOUTB

DAC B Output Voltage

6

VOUTC

DAC C Output Voltage

5

VOUTD

DAC D Output Voltage

4, 42

Negative Power Supply, -5V (2 pins). Connect both pins to the supply voltage. Bypass each pin

to the system analog ground with a 0.1µF to 1µF capacitor.

FLAT

PACK

PIN

39

41

40

1

44

43

42, 36

FUNCTION

8

VOUTA

DAC A Output Voltage

2

9, 37

Positive Power Supply, 5V (2 pins). Connect both pins to the supply voltage. Bypass each pin to

the system analog ground with a 0.1µF to 1µF capacitor.

3, 31

10

REFAB

Reference Voltage Input for DAC A and DAC B. Bypass to AGNDAB with a 0.1µF to 1µF capacitor.

4

11

AGNDAB

Analog Ground for DAC A and DAC B

5

12

–

L

—

D

—

A

—

B

–

Load Input (active low). Driving this asynchronous input low transfers the contents of input latches

A and B to the respective DAC latches.

6

13

–

L

—

D

—

C

—

D

–

Load Input (active low). Driving this asynchronous input low transfers the contents of input latches

C and D to the respective DAC latches.

7

14

–

C

—

S

–

Chip Select (active low)

8

15

–

W

—

R

–

Write Input (active low).

–

W

—

R

–

, along with

–

C

—

S

–

, loads data into the DAC input latch selected by A0–A2.

9

ADJACENT-CHANNEL CROSSTALK

A: DIGITAL INPUTS, DAC A, DATA BITS from ALL Os to OAAAhex

B: OUTPUT, DAC B

500ns/div

A

5V/div

B

5mV/div

ADJACENT-CHANNEL CROSSTALK

A: DIGITAL INPUTS, DAC A, DATA BITS from OAAAhex to ALL Os

B: OUTPUT, DAC B

500ns/div

A:

5V/div

B:

5mV/div

______________________________________________________________Pin Description

____________________________Typical Operating Characteristics (continued)