AK9822 Datasheet, PDF (1/17 Pages) Asahi Kasei Microsystems – 2K / 4Kbit EEPROM with 2ch 8bit D/A Converter

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
Linearity Error
Output Voltage Range
: ‘1.0 LSB
: ‘1.5 LSB
: GND ∼ VCC
† Wide VCC operation
• _{EEPROM section}
: 1.8V∼5.5V
• _{D/A Converter Section : 2.7V∼5.5V}
† Power Down Function
DAD01E-00
Block Diagram
-1-
1999/05