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FEATURES

LOW POWER: 4mW

UNIPOLAR OR BIPOLAR OPERATION

SETTLING TIME: 10μs to 0.003% FSR

15-BIT LINEARITY AND MONOTONICITY:

–40°C to +85°C

RESET TO MID-SCALE (DAC7642) OR

ZERO-SCALE (DAC7643)

DATA READBACK

DOUBLE-BUFFERED DATA INPUTS

APPLICATIONS

PROCESS CONTROL

CLOSED-LOOP SERVO-CONTROL

MOTOR CONTROL

DATA ACQUISITION SYSTEMS

DAC-PER-PIN PROGRAMMERS

DESCRIPTION

The DAC7642 and DAC7643 are dual channel, 16-bit, voltage

output Digital-to-Analog Converters (DACs) which provide

15-bit monotonic performance over the specified temperature

range. They accept 16-bit parallel input data, have

double-buffered DAC input logic (allowing simultaneous update

of all DACs), and provide a readback mode of the

internal input registers. Programmable asynchronous reset

clears all registers to a mid-scale code of 8000H (DAC7642)

or to a zero-scale code of 0000H (DAC7643). These DACs

can operate from a single +5V supply or from +5V and –5V

supplies, providing an output range of 0 to +2.5V or –2.5V to

+2.5V, respectively.

Low power and small size per DAC make the DAC7642 and

DAC7643 ideal for automatic test equipment, DAC-per-pin

programmers, data acquisition systems, and closed-loop

servo-control. The DAC7642 and DAC7643 are available in

a LQFP-32 package and specified over a –40°C to +85°C

temperature range.