器件名称: AA88349
功能描述: 8-BIT DAC
文件大小: 196.02KB 共8页
简 介:Agamem Microelectronics Inc.
PRELIMINARY
■ DESCRIPTION
AA88349
8-BIT DAC
The AA88349 is a CMOS processed digital to analog converter (DAC) with 8-bit resolotion, low leakage and operating current. The AA88349 has 3 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. 2.5MHz clock (CLK) rate. The latched 12-bit digital data is converted into an analog DC voltage in the range from GND to VCC with 8-bit resolution in one of the 3 channels by the D/A converter in a max. 100μs settling time. AA88349 is a single 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, AA88349 is also available for electronic volume and instead of potentio- meters for adjustment due to its high stability on the capacitive load. 8 pins TSSOP package type are available for AA88349. Its operational temper- nature range is specified over –20℃ to 85℃. ■ FEATURES 12 bits serial data input (3 wire serial data transfer method, DI, CLK, LD) R-2R resistor ladder used for D/A conversion 3 channels with 8-bit resolution monotonic D/A converter 3 channels buffer operational amplifiers operating in the full voltage range from VCC to GND Max. 2.5 MHz serial digital data input Serial I/O for cascade application Max. 1.0 mA output drive/sink……
