User Module Datasheet: 8-Bit Successive Approximation ADC Datasheet SAR8 V 1.0 (CY8C24x33, CY8C23x33)

Features and Overview

• Best analog-to-digital conversion results on CY8C24x33 and CY8C23x33 devices
• Fast (typical 2.7 μs) conversion time
• Successive approximation functionality support
• 8-bit resolution
• Eight primary input analog channels and two internal analog channels from CT blocks
• Single conversion
• Free running conversion
• Selectable conversion trigger
• Programmable sample time
• Programmable clock divider
• Cancel/restart feature for running conversions
• Support to autoalign/trigger at any point of PWM, timer, or counter cycle
• Automatic entry into low power mode after every conversion in single conversion mode
   

The SAR8 User Module is an 8-bit successive approximation register (SAR) ADC converter that converts an input voltage to a digital code using a dedicated analog PSoC block. It features typical conversion times of 2.7 μs (limited with firmware processing) and produces an 8-bit unsigned value for each sample. In motor control applications you may need to trigger the ADC to execute one analog-to-digital conversion at a certain time during the PWM period in order to obtain best performance.