IT88347数据手册Innochip中文资料规格书

描述 Description

IT88347 is a 8 Channels R2R CMOS Digital to Analog Converter (DAC) with 8-bit resolution, low leakage current and low operating current. The IT88347 has built in operational amplifier output buffers which canoperate in full-swing voltage range from GND to VCC (3.0V to 5.5V) with the Drive/Sink current up to max. 1mA.

The Digital Input data (DI) can be serially shifted and latched with a max. 2.5MHz clock (CLK). The latched 12-bit digital data is converted into analog DC voltage in the range from VSS to VDD with 8-bit resolution to one of the eight channels’ D/A converter in a max. 100μs settling time.

　

特性 Features

Wide Operation Power Supply range from 3.0V to 5.5V without sacrificing performance
High Linearity Resolution DNL < +- 0.5LSB; INL <= +-0.6LSB
12 bits serial data input controlled by 3 wire serial data transfer pins DI, CLK, LD
Max. 2.5MHz serial digital data input
Serial I/O data for cascade application
• Max. 1.0mA analog output drive/sink current for each DAC