DAC813AU屬于集成電路（IC）的數(shù)模轉(zhuǎn)換器（DAC）。由美國德州儀器公司制造生產(chǎn)的DAC813AU數(shù)模轉(zhuǎn)換器（DAC）數(shù)模轉(zhuǎn)換器（DAC、D/A、D2A 或 D 轉(zhuǎn) A）可將數(shù)字信號轉(zhuǎn)換為緩沖或無緩沖的模擬電壓或電流。DAC 架構是否適合特定應用，要取決于分辨率和采樣頻率。DAC 通常用于音樂播放器，將數(shù)字數(shù)據(jù)流轉(zhuǎn)換為模擬音頻流。它們還用于電視和手機，將數(shù)字視頻數(shù)據(jù)轉(zhuǎn)換為模擬視頻信號，再連接到屏幕驅(qū)動器，以顯示單色或彩色圖像。

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