ASAHI KASEI
[AK9813B]
AK9813B
12ch 8bit D/A Converter with EEPROM
General Description
The AK9813B includes 12 channel, 8bit D/A converters with on-chip output buffer amps and it is
capable to store the input digital data of each DAC by on-chip non-volatile CMOS EEPROM. The
AK9813B is optimally designed for various circuit adjustments for consumer and industrial
equipments and it is ideally suited for replacing mechanical trimmers.
Features
EEPROM SECTION
・12
words x 8bit x 4 organization for DAC
D/A CONVERTER SECTION
・12
channels
・Resolution
: 8bit
・DNL
: -1 to +2 LSB
・INL
: ±1.5 LSB
・Analog
Output Voltage Range : GND to VCC
Operating Voltage Range
・Digital
section : 2.7V to 5.5V
・Analog
section : 4.5V to 5.5V, 2.7V to 3.6V
24pin VSOP
CLK DI
VDD VSS
--
+
DO
SEL
ECL
CS/LD
EA0
EA1
Shift
Register
Control Logic
Channel
& Address
Decoder
8bit Latch
8bit Latch
8
8bit D/A
8bit D/A
AO1
8
--
+
AO2
8
VCC
GND
384bit
(12 x 8bit x 4)
EEPROM
8bit Latch
8bit Latch
8
8bit D/A
8bit D/A
--
+
AO11
8
--
+
AO12
Block Diagram
DAD04E-01
- 1 -
2002/11
AKM [ ASAHI KASEI MICROSYSTEMS ]
