MP7613

1

Rev. 2.00

FEATURES

• Eight Independent Channel 12-Bit DACs with

Output Amplifiers

• Low Power 320 mW (typ.)

• Parallel Digital Data and Address Port

• Double Buffered Data Interface

• Readback of DAC Latches

• Zero Volt Output Preset (Data = 10 .. 00)

• 12-Bit Resolution, 11-Bit Accuracy

• Extremely Well Matched DACs

• Extremely Low Analog Ground Current (<60µA/Channel)

D/A Converter with Output Amplifier

and Parallel Data/Address

µP Control Logic

• +10 V Output Swing with +11.4 V Supplies

• Rugged Construction – Latch-Up Proof

• Serial Version: MP7612

APPLICATIONS

• Data Acquisition Systems

• ATE

• Process Control

• Self-Diagnostic Systems

• Logic Analyzers

• Digital Storage Scopes

• PC Based Controller/DAS

GENERAL DESCRIPTION

The MP7613 provides eight independent 12-bit resolution

Digital-to-Analog Converters with voltage output amplifiers and

a parallel digital address and data port.

Built on using an advanced linear BiCMOS, these devices of-

fer rugged solutions that are latch-up free, and take advantage

of EXAR’s patented thin-film resistor process which exhibits ex-

cellent long term stability and reliability.

A standard

put data port loads the data into the pre-selected DACS.

This device can easily be interfaced to a data bus, and digital

readback of each channel is available.

Typical DAC matching is 0.7 LSB across all codes. Accuracy

of +0.75 LSB for DNL and +1 LSB for INL is achieved for B grade

versions. The output amplifier is capable of sinking and sourc-

ing 5mA, and the output voltage settles to 12-bits in less than

30

SIMPLIFIED BLOCK DIAGRAM

VO0

VO7

+

–

+

–

LAT0B

LAT7B

DAC0

DAC7

DQ

XR XE

DQ

XR XE

12

12

LAT0A

DQ

XR XE

LAT7A

DQ

XR XE

RB0

RB7

XE0

XE7

AGND

+

–

12

Bus

I/O

DB0 - DB11

12

XE0 - XE7

RB0 - RB7

Control

Logic

A0 - A2

LD1

RD

CS

R1

R2

LD2

3

8

8