General Description

The AK9844A includes 4 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 AK9844A is optimally designed for various circuit adjustments for consumer and industrial equipments and it is ideally suited for replacing mechanical trimmers.

Features

□ EEPROM section

▪ 4 word x 8-bit organization (Dedicated for DAC data)

▪ 256 word x 16-bit organization (General purpose memory)

▪ Serial data interface

▪ Sequential register read

▪ Automatic write cycle

▪ 100K write cycles

▪ 10 year data retention

□ D/A section

▪ 4 channels

▪ Resolution : 8-bits

▪ Differential Non-Linearity : ±1.0 LSB

▪ Linearity Error : ±1.5 LSB

▪ Output Voltage Range : GND to VCC

□ AUTO READ Function

□ Power down mode