DAC7725屬于集成電路（IC）的數(shù)模轉(zhuǎn)換器（DAC）。由美國(guó)德州儀器公司制造生產(chǎn)的DAC7725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(hào)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(hào)，再連接到屏幕驅(qū)動(dòng)器，以顯示單色或彩色圖像。

FEATURES

LOW POWER: 250mW max

SINGLE SUPPLY OUTPUT RANGE: +10V

DUAL SUPPLY OUTPUT RANGE: ±10V

SETTLING TIME: 10ms to 0.012%

12-BIT LINEARITY AND MONOTONICITY:

–40°C to +85°C

RESET TO MID-SCALE (DAC7724) OR

ZERO-SCALE (DAC7725)

DATA READBACK

DOUBLE-BUFFERED DATA INPUTS

APPLICATIONS

PROCESS CONTROL

CLOSED-LOOP SERVO-CONTROL

MOTOR CONTROL

DATA ACQUISITION SYSTEMS

DESCRIPTION

The DAC7724 and DAC7725 are 12-bit quad voltage

output digital-to-analog converters with guaranteed

12-bit monotonic performance over the specified temperature

range. They accept 12-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. An asynchronous

reset clears all registers to a mid-scale code of 800H

(DAC7724) or to a zero-scale of 000H (DAC7725). The

DAC7724 and DAC7725 can operate from a single

+15V supply, or from +15V and –15V supplies.

Low power and small size per DAC make the DAC7724

and DAC7725 ideal for automatic test equipment,

DAC-per-pin programmers, data acquisition systems,

and closed-loop servo-control. The DAC7724 and

DAC7725 are available in a PLCC-28 or a SO-28

package, and offer guaranteed specifications over the

–40°C to +85°C temperature range.