Z86D99 ZILOG [Zilog, Inc.], Z86D99 Datasheet - Page 96

• Manufacturer Part Number: Z86D99
• Description: Low-Voltage Micro controllers with ADC
• Manufacturer: ZILOG [Zilog, Inc.]

PS003807-1002
Analog-to-Digital Converter Characteristics
Table 56 lists the analog-to-digital converter characteristics.
Table 56. Analog-to-Digital Converter Characteristics
The ADC input is a switching capacitor that charges up to the applied input volt-
age whenever it is configured as an ADC input. If you switch it from digital mode to
Parameter
Resolution
Integral Nonlinearity
Differential Nonlinearity
Zero Error at 25 C
Supply Voltage Range (OTP) 3.0
Supply Voltage Range (ROM) 2.3
Power Dissipation (No Load)
Clock Frequency (f ADC)
Input Voltage Range
Step Response
ADC Input Capacitance
Vref Input Capacitance
V
V
(V
Temperature Range
3-db Frequency
Signal to Noise
ADC Output Code
Vref Input Source Impedance
ADC Input Source Impedance
Notes: Dout= [(Vin–V
Ref+
Ref–
Ref+
Range
Range
)–(V
f ADC = set in ADCCTRL configuration register
Step Response is the time to track the input if a step from V
Ref–
)
P
Ref–
R
)/(V
Ref+
E
Minimum Typical
V
25
25
V
AGND
2.0
0
47
L
–V
Ref–
Ref–
Ref–
I
+2.0
)] X 256
M
Z86D990/Z86D991 OTP and Z86L99X ROM
8
0.5
0.5
(0.0021 X f ADC)
Dout
I
Low-Voltage Microcontrollers with ADC
N
A
R
Y
Maximum
1
1
7.8
5.5
5.5
1.2
4
V
40
40
AV
V
AV
70
1.0
1.0
2/(0.0021 X f ADC) s
Ref–
Ref+
Ref+
DD
DD
to V
–2.0
Ref+
is applied.
Units
bits
LSB
LSB
mV
V
V
mW
MHz
V
pF
pF
V
V
V
Hz
db
kOhms
kOhms
C
89