Справочник Пользователя для Samsung S3C2440A

The 10-bit CMOS ADC (Analog to Digital Converter) is a recycling type device with 8-channel analog inputs. It 
converts the analog input signal into 10-bit binary digital codes at a maximum conversion rate of 500KSPS with 
2.5MHz A/D converter clock. A/D converter operates with on-chip sample-and-hold function and power down mode 
is supported.  

Touch Screen Interface can control/select pads(XP, XM, YP, YM) of the Touch Screen for X, Y position 
conversion. Touch Screen Interface contains Touch Screen Pads control logic and ADC interface logic with an 
interrupt generation logic. 

— Resolution: 

10-bit 

—  Differential Linearity Error: 

±

 1.0 LSB 

—  Integral Linearity Error: 

±

 2.0 LSB 

—  Maximum Conversion Rate:  500 KSPS 

—  Low Power Consumption 

—  Power Supply Voltage: 3.3V 

—  Analog Input Range: 0 ~ 3.3V 

—  On-chip sample-and-hold function 

—  Normal Conversion Mode 

—  Separate X/Y position conversion Mode 

—  Auto(Sequential) X/Y Position Conversion Mode 

—  Waiting for Interrupt Mode