DAC1220E/2K5集成电路（IC）的数模转换器（DAC）规格书PDF中文资料

DAC1220E/2K5属于集成电路（IC）的数模转换器（DAC）。由德州仪器制造生产的DAC1220E/2K5数模转换器（DAC）数模转换器（DAC、D/A、D2A 或 D 转 A）可将数字信号转换为缓冲或无缓冲的模拟电压或电流。DAC 架构是否适合特定应用，要取决于分辨率和采样频率。DAC 通常用于音乐播放器，将数字数据流转换为模拟音频流。它们还用于电视和手机，将数字视频数据转换为模拟视频信号，再连接到屏幕驱动器，以显示单色或彩色图像。

1FEATURES

2• 20-Bit Monotonicity Ensured Over –40°C to

+85°C

• Low Power: 2.5mW

• Voltage Output

• Settling Time: 2ms to 0.012%

• Maximum Linearity Error: ±0.0015%

• On-Chip Calibration

APPLICATIONS

• Process Control

• ATE Pin Electronics

• Closed-Loop Servo Control

• Smart Transmitters

• Portable Instruments

DESCRIPTION

The DAC1220 is a 20-bit digital-to-analog (D/A)

converter offering 20-bit monotonic performance over

the specified temperature range. It utilizes

delta-sigma technology to achieve inherently linear performance in a small package at very low power.

The resolution of the device can be programmed to

20 bits for Full-Scale, settling to 0.003% within 15ms

typical, or 16 bits for Full-Scale, settling to 0.012%

within 2ms max. The output range is two times the

external reference voltage. On-chip calibration circuitry dramatically reduces low offset and gain

errors.

The DAC1220 features a synchronous serial

interface; in single-converter applications, the serial

interface can be accomplished with just two wires,

allowing low-cost isolation. For multiple converters, a

CS signal allows for selection of the appropriate D/A

converter.

The DAC1220 has been designed for closed-loop

control applications in the industrial process control

market and high-resolution applications in the test

and measurement market. It is also ideal for remote

applications, battery-powered instruments, and

isolated systems. The DAC1220 is available in an

SSOP-16 package.