DAC8822中文资料16 位双并行接口高精度乘法 DAC数据手册TI规格书

描述 Description

The DAC8822 dual, multiplying digital-to-analog converter (DAC) is designed to operate from a single 2.7V to 5.5V supply.The applied external reference input voltage VREF determines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking for the full-scale output when combined with an external, current-to-voltage (I/V) precision amplifier. A RSTSEL pi allows system reset assertion (RS) to force all registers to zero code when RSTSEL = '0', or to midscale code when RSTSEL = '1'. Additionally, an internal power-on reset forces all registers to zero or midscale code at power-up, depending on the state of the RSTSEL pin. A parallel interface offers high-speed communications. The DAC8822 is packaged in a space-saving TSSOP-38 package and has an industry-standard pinout. The device is specified from -40°C to +125°C. For a 14-bit, pin-compatible version, see the DAC8805.

特性 Features

• ±0.5LSB DNL
• ±1LSB INL
• Low Noise: 12nV/Hz
• Low Power Operation: IDD = 1µA per Channel at 2.7V
• 2mA Full-Scale Current, with VREF = 10V
• Settling Time: 0.5µs
• 16-Bit Monotonic
• 4-Quadrant Multiplying Reference Inputs
• Reference Bandwidth: 10MHz
• Reference Input: ±18V
• Reference Dynamics: -105 THD
• Midscale or Zero Scale Reset
• Analog Power Supply: +2.7V to +5.5V
• TSSOP-38 Package
• Industry-Standard Pin Configuration
• Pin-Compatible with the 14-Bit DAC8805
• Temperature Range: -40°C to +125°C
• APPLICATIONS
• Automatic Test Equipment
• Instrumentation
• Digitally Controlled Calibration
• Industrial Control PLCs

简介

DAC8822属于集成电路（IC）的数模转换器（DAC）。由TI制造生产的DAC8822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。