DAC7822 - 双路 12 位串行输入乘法 DAC

DAC7822是TI德州仪器公司的一款精密DAC(=<10MSPS)产品，DAC7822是双路 12 位串行输入乘法 DAC，本站介绍了DAC7822的封装应用图解、特点和优点、功能等，并给出了与DAC7822相关的TI元器件型号供参考。

DAC7822 - 双路 12 位串行输入乘法 DAC - 精密DAC(=<10MSPS) - 数模转换器 - 德州仪器

产品描述

The DAC7822 is a dual, CMOS, 12-bit, current output digital-to-analog converter (DAC). This device operates from a 2.5V to 5.5V power supply, making it suitable for battery-powered and many other applications.

The DAC7822 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 DAC7822 offers excellent 4-quadrant multiplication characteristics, with 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 DAC7822 also includes the resistors necessary for 4-quadrant multiplication and other configuration modes.

The DAC7822 is available in a 40-lead QFN package.

产品特性

±1LSB INL
2.5V to 5.5V Supply Operation
Fast Parallel Interface: 17ns Write Cycle
Update Rate of 20.4MSPS
10MHz Multiplying Bandwidth
±15V Reference Input
Extended Temperature Range: -40°C to +125°C
40-Lead QFN
12-Bit Monotonic
4-Quadrant Multiplication
Power-On Reset with BrownoutDetection
Readback Function
Industry-Standard Pin Configuration
Pin-Compatible with the AD5405
APPLICATIONS
- Portable Battery-Powered Instruments
- Waveform Generators
- Analog Processing
- Programmable Amplifiers and Attenuators
- Digitally-Controlled Calibration
- Programmable Filters and Oscillators
- Ultrasound

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