DAC813AU.A中文资料德州仪器数据手册PDF规格书

FEATURES

±1/2LSB NONLINEARITY OVER

TEMPERATURE

GUARANTEED MONOTONIC OVER

TEMPERATURE

LOW POWER: 270mW typ

DIGITAL INTERFACE DOUBLE

BUFFERED: 12 AND 8 + 4 BITS

SPECIFIED AT ±12V AND ±15V POWER

SUPPLIES

RESET FUNCTION TO BIPOLAR ZERO

0.3 WIDE DIP AND SO PACKAGES

DESCRIPTION

The DAC813 is a complete monolithic 12-bit digitalto-

analog converter with a flexible digital interface.

It includes a precision +10V reference, interface control

logic, double-buffered latch and a 12-bit D/A

converter with voltage output operational amplifier.

Fast current switches and laser-trimmed thin-film

resistors provide a highly accurate, fast D/A converter.

Digital interfacing is facilitated by a double buffered

latch. The input latch consists of one 8-bit byte and

one 4-bit nibble to allow interfacing to 8-bit (right

justified format) or 16-bit data buses. Input gating

logic is designed so that the last nibble or byte to be

loaded can be loaded simultaneously with the transfer

of data to the D/A latch saving computer instructions.

A reset control allows the DAC813 D/A latch to

asynchronously reset the D/A output to bipolar zero,

a feature useful for power-up reset, recalibration, or

for system re-initialization upon system failure.

The DAC813 is specified to ±1/2LSB maximum linearity

error (J, A grades) and ±1/4LSB (K grade).

It is packaged in 28-pin 0.3 wide plastic DIP and

28-lead plastic SOIC