器件名称: AI88347
功能描述: 8-BIT DAC
文件大小: 277.64KB 共12页
简 介:Ai88347
8-BIT DAC
Feature
12 bits serial data input(3 wire serial data transfer method, DI, CLK, LD) R-2R resistor ladder used for D/A conversion 8 channels with 8-bit resolution monotonic D/A converted 8 channel buffer operational amplifiers operating in the full voltage range from VCC to GND only if VDD=VCC and VSS=GND Max. 2.5 MHz serial digital data input Serial I/O for cascade application Max. 1.0 mA output drive/sink current Two separate power supply/ground lines for system and analog power supply Dual 3.3/5V system power supply Pin Assignment (Top View)
Description
The Ai88347 is a CMOS processed digital to analog converter (DAC) with 8-bit resolution, low leakage current and low operating current. The Ai88347 has 8 channels with build in operational amplifier output buffers which could operate in the full-swing voltage range from VCC to GND and enhance the Drive/Sink ability up to max.1mA. Digital data (DI) input serially in a max. 2.5 MHz clock (CLK) rate. The latched 12-bit digital data is converted into an analog DC voltage in the range from VSS to VDD with 8-bit resolution in one of the eight channels by the D/A converter in a max. 100 μ s settling time. Dual 3.3V/5V power DAC. Analog DC output could be full voltage swing as the analog power is equal to the system power. In addition to normal D/A converter applications, Ai88347 is also available for electronic volume and instead of potentiometers for adjustment due to its high stability on the capacitive……
