AK9824

ASAHI KASEI [AK9822/24] AK9822 / 24 2K / 4Kbit EEPROM with 2ch 8bit D/A Converter General Description The AK9822/24 includes 2 channel, 8 bit D/A converters with on-chip output buffer amps and it is capable to store the input digital data of each D/A converter by on-chip non-volatile CMOS EEPROM. The AK9822/24 is optimally designed for various circuit adjustments for consumer and industrial equipments and it is ideally suited for replacing mechanical trimmers. Feature † EEPROM section AK9822 128 words Õ 16bit AK9824 256 words Õ 16bit One chip microcomputer interface Sequential register read † D/A Converter section 2 channel Resolution : 8bit Differential Non-Linearity : ‘1.0 LSB Linearity Error : ‘1.5 LSB Output Voltage Range : GND ∼ VCC † Wide VCC operation EEPROM section : 1.8V∼5.5V D/A Converter Section : 2.7V∼5.5V † Power Down Function Block Diagram DAD01E-00 -11999/05 ASAHI KASEI [AK9822/24] „ Ordering Guide AK9822M AK9824M -40°C∼+85°C -40°C∼+85°C 8pin SSOP 8pin SSOP „ Pin Layout „ Pin Description No. 1 2 3 4 5 6 7 8 Pin Name AO1 CS SK DO GND DI VCC AO0 I/O O I I O I O Analog Output Pin Chip Select Pin Serial Clock Pin Serial Data Output Pin Ground Pin Serial Data Input Pin Power Supply Analog Output Pin (Schmitt-trigger input) (Schmitt-trigger input) Function DAD01E-00 -2- 1999/05 ASAHI KASEI [AK9822/24] Functional Description The AK9822/24 is composed of EEPROM and the 8bit D/A converter of two channels with the output buffer amplifie...