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MP7680

5 V CMOS 12-Bit

Quad Double-Buffered Multiplying

Digital-to-Analog Converter

June 2000-2

FEA TURES

路

路

路

路

路

路

路

路

路

Exar Pioneered Segmented DAC Approach

Four Double-Buffered 12-bit DACs on a Single Chip

Independent Reference Inputs

Lowest Gain Error in a Multiple DAC Chip

Guaranteed Monotonic

TTL/5 V CMOS Compatible Inputs

Industry Standard Digital Interface

Four Quadrant Multiplication

Latch-Up Free

BENEFITS

路

Reduced Board Space; Lower System Cost.

路

Independent Control of DACs

路

Excellent DAC-to-DAC Matching and Tracking

APPLICA TIONS

路

路

路

路

Function Generators

Automatic Test Equipment

Precision Process Controls

Recording Studio Control Boards

GENERAL

DESCRIPTIONS

The MP7680 and the integrate four 12-bit four-quadrant-

multiplying DACs with independent reference inputs and

excellent matching characteristics. The MP7680 grades

offer 1/2, 1 and 2 LSB of relative accuracy. The superior

offers a low 2 LSB of gain error.

Each DAC has double-buffering (an 8 and 4-bit latch and

a 12-bit latch) between the data bus (DB11 - DB0) and the

DAC. The internal 4-bit mux allows the use of 8 or 16-bit

buses. The flexible latch control logic allows to update

one or more DACs simultaneously.

ORDERING

INFORMA

TION

Package

Type

Temperature

Range

Part No.

INL

(LSB)

DNL

(LSB)

Gain Error

(LSB)

Plastic Dip

Plastic Dip

PQFP

PQFP

-40 to +85擄C

擄

-40 to +85擄C

擄

-40 to +85擄C

擄

-40 to +85擄C

擄

MP7680JN

MP7680KN

MP7680JE

MP7680KE

+2

+1

+2

+1

+4

+2

+4

+2

+16

+16

+16

+16

Rev. 3.10

E1998

EXAR Corporation, 48720 Kato Road, Fremont, CA 94538

z

(510) 668-7000

z

(510) 668-7017

next

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