AK9813A

ASAHI KASEI [AK9813A] AK9813A 12ch 8bit D/A Converter with EEPROM General Description The AK9813A 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 AK9813A 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 Õ 8bit Õ 4 organization for DAC † D/A converter section 12 channels Resolution : 8bit DNL : -1a+2 LSB INL : ‘1.5 LSB Analog Output Voltage Range : GND a VCC † Operating Voltage Range Digital section : 2.7Va5.5V Analog section : 5.0V‘0.5V,3.3V‘0.3V † 24pin VSOP Block Diagram DAD03E-00 -1- 1999/05 ASAHI KASEI „ Ordering Guide AK9813AF „ ý Pin Layout -10 to +85°C 24-pinVSOP [AK9813A] DAD03E-00 -2- 1999/05 ASAHI KASEI „ ý Pin Description(1) No. 20 DI Pin Name I/O I Function [AK9813A] 17 DO O 19 CLK I 18 CS/LD I Serial Data Input Pin SEL=High : 16bit data input format SEL=Low : 14bit data input format (SEL=High:CS I/F) AK9813A reads out the data with LSB first in the 16bit shift register to DO pin synchronously with falling edge of CLK. When the CS pin is high level, the DO pin becomes high impedance. In STATUS mode, the DO pin outputs Ready/Busy status. (SEL=Low:LD I/F) AK9813A reads out the data with MSB first in the 14bit shift register to DO pin synchronously with falling edge ...