MP7610

Rev. 4.01

1

EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z (510) 668-7017

E

1998

FEATURES

· Eight Independent 14-Bit DACs with Output Amplifiers

· Low Power 320 mW (typ.)

· Serial Digital Data and Address Port (3-Wire Standard)

· 14-Bit Resolution, 12-Bit Accuracy

· Extremely Well Matched DACs

· Extremely Low Analog Ground Current (<60mA/Channel)

· +10 V Output Swing with +11.4 V Supplies

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

· Rugged Construction -- Latch-Up Free

· Parallel Version: MP7611

D/A Converter with Output Amplifier

and Serial Data/Address mP Control Logic

APPLICATIONS

· Data Acquisition Systems

· ATE

· Process Control

· Self-Diagnostic Systems

· Logic Analyzers

· Digital Storage Scopes

· PC Based Controller/DAS

June 1998-3

GENERAL DESCRIPTION

The MP7610 provides eight independent 14-bit resolution

Digital-to-Analog Converters with voltage output

amplifiers and a 3-wire standard serial digital address and

data port.

The output amplifier is capable of sinking and sourcing

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

30ms (typ.).

The MP7610 is equipped with a serial data (3-wire

standard) m-processor logic interface to reduce pin count,

package size, and board space.

Built using an advanced linear BiCMOS, these devices

offer rugged solutions that are latch-up free, and take

advantage of EXAR’s patented thin-film resistor process

which exhibits excellent long term stability and reliability.

SIMPLIFIED BLOCK DIAGRAM

VO0

VO7

SDO

DAC0

DAC7

+

--

+

--

D

Q

XR XE

LAT0

LAT7

D

Q

XR XE

14

14

RST

+

--

Tri-State Buffer

XE0 - XE7

4 to 16 Decoder

Not Used

8

LD

14

4

SDI

CLK

LD

LAT

D

Q

EN

LAT

D

Q

EN

A0 to A3

D0 to D13

18-Bit Shift Register

XE0

XE7

LD

8