TLV5639IDW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TLV5639IDW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

· 12-Bit Voltage Output DAC

· Programmable Internal Reference

· Programmable Settling Time vs Power

Consumption

– 1 μs in Fast Mode

– 3.5 μs in Slow Mode

· Compatible With TMS320

· Differential Nonlinearity . . . <0.5 LSB Typ

· Voltage Output Range . . . 2x the Reference

Voltage

· Monotonic Over Temperature

APPLICATIONS

· Digital Servo Control Loops

· Digital Offset and Gain Adjustment

· Industrial Process Control

· Machine and Motion Control Devices

· Mass Storage Devices

DESCRIPTION

The TLV5639 is a 12-bit voltage output digital-to-analog converter (DAC) with a microprocessor compatible

parallel interface. It is programmed with a 16-bit data word containing 4 control and 12 data bits. Developed for a

wide range of supply voltages, the TLV5639 can be operated from 2.7 V to 5.5 V.

The resistor string output voltage is buffered by a x2 gain rail-to-rail output buffer. The buffer features a Class AB

output stage to improve stability and reduce settling time. The programmable settling time of the DAC allows the

designer to optimize speed versus power dissipation. Because of its ability to source up to 1 mA, the internal

reference can also be used as a system reference. With its on-chip programmable precision voltage reference,

the TLV5639 simplifies overall system design. The settling time and the reference voltage can be chosen by the

control bits within the 16-bit data word.

Implemented with a CMOS process, the device is designed for single supply operation from 2.7 V to 5.5 V. It is

available in 20-pin SOIC and TSSOP packages in standard commercial and industrial temperature ranges.