DAC7821 - 12 位并行输入乘法 DAC

DAC7821是TI德州仪器公司的一款精密DAC(=<10MSPS)产品，DAC7821是12 位并行输入乘法 DAC，本站介绍了DAC7821的封装应用图解、特点和优点、功能等，并给出了与DAC7821相关的TI元器件型号供参考。

DAC7821 - 12 位并行输入乘法 DAC - 精密DAC(=<10MSPS) - 数模转换器 - 德州仪器

产品描述

The DAC7821 is a CMOS 12-bit current output digital-to-analog converter (DAC). This device operates from a single 2.5V to 5.5V power supply, making it suitable for battery-powered and many other applications.

This DAC operates with a fast parallel interface. Data readback allows the user to read the contents of the DAC register via the DB pins. On power-up, the internal register and latches are filled with zeroes and the DAC outputs are at zero scale.

The DAC7821 offers excellent 4-quadrant multiplication characteristics, with a large signal multiplying bandwidth of 10MHz. The applied external reference input voltage (VREF) determines the full-scale output current. An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.

The DAC7821 is available in a 20-lead TSSOP package.

产品特性

2.5V to 5.5V Supply Operation
Fast ParallelInterface: 17ns Write Cycle
Update Rate of 20.4MSPS
10MHz Multiplying Bandwidth
±10V Reference Input
Low Glitch Energy: 5nV-s
Extended Temperature Range:-40°C to +125°C
20-Lead TSSOP Packages
12-Bit Monotonic
±1LSB INL
4-Quadrant Multiplication
Power-On Reset with Brownout Detection
Readback Function
Industry-Standard Pin Configuration
APPLICATIONS
- Portable Battery-Powered Instruments
- Waveform Generators
- Analog Processing
- Programmable Amplifiers and Attenuators
- Digitally-Controlled Calibration
- Programmable Filters and Oscillators
- Composite Video
- Ultrasound

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