ht82a836r Holtek Semiconductor Inc., ht82a836r Datasheet - Page 59

• Manufacturer Part Number: ht82a836r
• Description: Usb Audio Mcu
• Manufacturer: Holtek Semiconductor Inc.

HT82A836R
A/D Transfer Function
As the HT82A836R device contains a 12-bit A/D converter, their full-scale converted digitised value is equal to FFFH.
Since the full-scale analog input value is equal to the voltage, this gives a single bit analog input value of V
/4096. The
DD
following graphs show the ideal transfer function between the analog input value and the digitised output value for the
A/D converters. Note that to reduce the quantisation error, a 0.5 LSB offset is added to the A/D Converter input. Except
for the digitised zero value, the subsequent digitised values will change at a point 0.5 LSB below where they would
change without the offset, and the last full scale digitised value will change at a point 1.5 LSB below the VDD level.
Ideal A/D Transfer Function
Rev. 1.00
59
March 20, 2008