Datasheet > AI88347

AI88347

更新时间： 2024-09-13 06:36:51

品牌	Logo	应用领域
A1PROS		/
页数	文件大小	规格书
12页	273K
描述
8-BIT DAC

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AI88347 数据手册

Ai88347

8-BIT DAC

Feature

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 V_CCto GND and enhance the Drive/Sink

ability up to max.1mA.

♦ 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 V_CCto GND only if

V_DD=V_CCand V_SS=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

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

V_SSto V_DDwith 8-bit resolution in one of the eight

channels by the D/A converter in a max. 100μs

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.

♦ Dual 3.3/5V system power supply

Pin Assignment (Top View)

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 load. .

16 pins TSSOP package type are available

for Ai88347. Its operational temperature range is

specified over –20℃ to 85℃.

P1/12

April 2008

12 3 4 5 6 7...12

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