TLV5621 - 8 位、10us 四路 DAC，串行输入、简单 2 线接口、可编程 1x 或 2x 输出、断电功能

TLV5621是TI德州仪器公司的一款精密DAC(=<10MSPS)产品，TLV5621是8 位、10us 四路 DAC，串行输入、简单 2 线接口、可编程 1x 或 2x 输出、断电功能，本站介绍了TLV5621的封装应用图解、特点和优点、功能等，并给出了与TLV5621相关的TI元器件型号供参考。

TLV5621 - 8 位、10us 四路 DAC，串行输入、简单 2 线接口、可编程 1x 或 2x 输出、断电功能 - 精密DAC(=<10MSPS) - 数模转换器 - 德州仪器

产品描述

The TLV5621I is a quadruple 8-bit voltage output digital-to-analog converter (DAC) with buffered reference inputs (high impedance). The DAC produces an output voltage that ranges between either one or two times the reference voltages and GND, and the DAC is monotonic. The device is simple to use since it operates from a single supply of 2.7 V to 5.5 V. A power-on reset function is incorporated to provide repeatable start-up conditions. A global hardware shut-down terminal and the capability to shut down each individual DAC with software are provided to minimize power consumption.

Digital control of the TLV5621I is over a simple 3-wire serial bus that is CMOS compatible and easily interfaced to all popular microprocessor and microcontroller devices. A TLV5621I 11-bit command word consists of eight bits of data, two DAC select bits, and a range bit for selection between the times one or times two output range. The TLV5621I digital inputs feature Schmitt triggers for high noise immunity. The DAC registers are double buffered which allows a complete set of new values to be written to the device, and then under control of the HWACT signal, all of the DAC outputs are updated simultaneously.

The 14-terminal small-outline (D) package allows digital control of analog functions in space-critical applications. The TLV5621I does not require external trimming. The TLV5621I is characterized for operation from -40°C to 85°C.

产品特性

2.7-V to 5.5-V Single-Supply Operation
Three 8-Bit Voltage Output DACs
One-Half Power 8-Bit Voltage Output DAC
Fast Serial Interface . . . 1 MHz Max
Simple Two-Wire Interface In Single Buffered Mode
High-Impedance Reference Inputs For Each DAC
Programmable for 1 or 2 Times Output Range
Simultaneous-Update Facility In Double-Buffered Mode
Internal Power-On Reset
Industry Temperature Range
Low Power Consumption
Half-Buffered Output
Power-Down Mode

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