Z8 Encore! XP® F08xA Series
Product Specification
109
2
Internal Voltage
Vrefsel
VREF pin
Reference Generator
Analog Input
Multiplexer
VREFEXT
ANA0
ANA1
ANA2
ANA3
ANA4
ANA5
Ref Input
11
ADC
Data
Amplifier with
Configurable Gain
and Buffering
11 bit
Sigma-Delta
4
ADC
ANAIN
Analog In -
Analog In +
-
Analog Input
Multiplexer
+
ANA0
ANA1
ANA2
ANA3
ANA4
ANA5
ANA6
ANA7
ADC
IRQ
BUFFMODE
Amplifier tristates
when disabled
-
+
Temp
Sensor
Transimpedance
Amplifier
Figure 18.Analog-to-Digital Converter Block Diagram
Operation
Data Format
In both SINGLE-ENDED and DIFFERENTIAL modes, the output of the ADC is an 11-
bit, signed, two’s complement digital value. In DIFFERENTIAL mode, the ADC can out-
PS024705-0405
P R E L I M I N A R Y
Analog-to-Digital Converter
ZILOG [ ZILOG, INC. ]
