Z8 Encore! XP® 4K Series
Product Specification
114
2
Internal Voltage
Vrefsel
VREF pin
Reference Generator
Analog Input
Multiplexer
VREFEXT
ANA0
ANA1
ANA2
ANA3
ANA4
ANA5
Ref Input
13
ADC
Data
13 bit
Sigma-Delta
Buffer Amplifier
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
Low-Power Operational
Amplifier
Figure 19.Analog-to-Digital Converter Block Diagram
Operation
Data Format
In both SINGLE-ENDED and DIFFERENTIAL modes, the effective output of the ADC is
an 11- bit, signed, two’s complement digital value. In DIFFERENTIAL mode, the ADC
PS022815-0206
Analog-to-Digital Converter
ZILOG [ ZILOG, INC. ]
