BU1S12S1AG-LB Datasheet, PDF (2/20 Pages) Rohm – Successive Approximation A/D Converter

BU1S12S1AG-LB
Pin Configuration
VA ₁
GND ₂
VIN ³
(TOP VIEW)
6 CSB
5 SDATA
4 SCLK
Figure 3. Pin Configuration
Pin Descriptions
Pin No. Pin Name
Description
1
VA
Power supply pin. This voltage is the full scale of the analog input.
2
GND Ground pin. This voltage level is the zero scale of the analog input.
3
VIN
Analog input pin. The voltage range must be between 0V and VA.
4
SCLK Digital clock input pin.
5
SDATA Digital data output pin.
6
CSB
Chip select pin. A/D conversion starts at the falling edge of this signal.
Block Diagram
VIN
TRACK/HOLD
12-BIT
SUCCESSIVE
APPROXIMATION
ADC
CONTROL
LOGIC
Figure 4. Block Diagram
SCLK
CSB
SDATA
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TSZ22111・15・001
2/16
TSZ02201-0GSG0GZ10180-1-2
04.Jul.2016 Rev.001