W55AD808 Datasheet, PDF (2/6 Pages) List of Unclassifed Manufacturers – 8-bit ADC with 8 input channels

W55AD808 Data Sheet
1 General Description
W55AD808, a low cost 8-bit ADC with 8 input channels. Each channel can be defined
as digital or analog input mode independently. In analog input mode, this channel can
accept an analog input range from 0V ~ V_REF and convert it into a 10-bit digital data format
(with 8-bit significant digits). W55AD808 provides a serial interface for host CPU to control it.
Beside analog input mode, all input pins can be defined as digital input mode; host CPU can
monitor them by the serial interface.
2 Features
 Operating voltage: 2.7V ~ 5.5V.
 Guarantee 8-bit A/D resolution.
 8 analog input channels.
 Each channel can be independently programmed to a digital input mode.
 50KHz conversion rate.
 10-bit ADC with 8-bit significant digits.
 Operation current: 0.5mA ~ 1mA.
 Stand-by current: <0.5uA @ 4.5V.
 Auto entry power-down mode.
 Less external components.
3 Block Diagram
A0~A
7
MUX
10 Bits ADC
VREF
INTERNAL
REFERENCE
VOLTAGE
MUX
CONTROL
LOGICAL
POWER
CMD_EN
SCLK
DATA
VDD
VSS
AVD
DAVS
S
___________________________________________________________________________
Release Date:Oct. 2012
-2-
Version A4.0