DAC7731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DAC7731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(gòu)是否適合特定應(yīng)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?jǐn)?shù)據(jù)流轉(zhuǎn)換為模擬音頻流。它們還用于電視和手機(jī)，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

LOW POWER: 150mW MAXIMUM

+10V INTERNAL REFERENCE

UNIPOLAR OR BIPOLAR OPERATION

SETTLING TIME: 5μs to ±0.003% FSR

16-BIT MONOTONICITY, –40°C TO +85°C

±10V, ±5V, OR +10V CONFIGURABLE VOLTAGE

OUTPUT

RESET TO ZERO OR MID-SCALE

DOUBLE-BUFFERED DATA INPUT

DAISY-CHAIN FEATURE FOR MULTIPLE

DAC7731s ON A SINGLE BUS

SMALL SSOP-24 PACKAGE

APPLICATIONS

PROCESS CONTROL

ATE PIN ELECTRONICS

CLOSED-LOOP SERVO CONTROL

MOTOR CONTROL

DATA ACQUISITION SYSTEMS

DESCRIPTION

The DAC7731 is a 16-bit Digital-to-Analog Converter (DAC)

which provides 16 bits of monotonic performance over the

specified operating temperature range and offers a +10V

internal reference. Designed for automatic test equipment

and industrial process control applications, the DAC7731

output swing can be configured in a ±10V, ±5V, or +10V

range. The flexibility of the output configuration allows the

DAC7731 to provide both unipolar and bipolar operation by

pin strapping. The DAC7731 includes a high-speed output

amplifier with a maximum settling time of 5μs to ±0.003%

FSR for a 20V full-scale change and only consumes 100mW

(typical) of power.

The DAC7731 features a standard 3-wire, SPI-compatible

serial interface with double buffering to allow asynchronous

updates of the analog output as well as a serial data output

line for daisy-chaining multiple DAC7731s. A user programmable

reset control forces the DAC output to either min-scale

(0000h) or mid-scale (8000h), overriding both the input and

DAC register values. The DAC7731 is available in a

SSOP-24 package and three performance grades specified

to operate from –40°C to +85°C.