ADP315PC87570 National Semiconductor, ADP315PC87570 Datasheet - Page 134

• Manufacturer Part Number: ADP315PC87570
• Description: Keyboard and Power Management Controller
• Manufacturer: National Semiconductor

19.3 DC ELECTRICAL CHARACTERISTICS
19.3.1 Analog
Internal Reference Voltage
External Reference Voltage
V
Resolution
Integral (non-linearity) Error
Differential (non-linearity) Error
Offset Error
Gain Error
Input Voltage Range
Analog Input Leakage Current
Analog Input Resistance
Analog Input Capacitance
ADC Activation Time
Resolution
Integral (non-linearity) Error
Differential (non-linearity) Error
Offset Error
Gain Error
Output Voltage Range
Analog Output Resistance
Analog Output Capacitance
REF
1. All parameters specified for 0 C
2. Valid only for external V
3. The maximum difference between the ideal straight line reference and the actual conversion curves.
4. The maximum difference between an ideal step size of 1 LSB and any actual step size.
5. Either V
6. The resistance between the device input and the internal analog input capacitance.
7. Time from when ADCCNT1.ADCEN = 1 until valid conversions are possible.
1. All parameters specified for 0 C
2. The maximum difference between the ideal straight line reference and the actual conversion curves.
3. The maximum difference between an ideal step size of 1 LSB and any actual step size.
Input DC resistance
AV
AV
CC
CC
= 3.3V
Parameter
Parameter
= 3.3V
REFI
or V
10%, AV
7
10% or AV
REFE
6
2
, as set by bit 1 of ADCCNT1 Register.
3
2
CC
REF
4
3
CC
= 5.0V
; value changes during the conversion.
= 5.0V
Symbol
Symbol
I
V
V
VREFE
RES
RES
R
C
T
DNL
DNL
C
V
INL
INL
OE
GE
Table 19-5. ADC Characteristics
REFE
OE
GE
V
R
I
REFI
ACT
AL
AIN
AIN
out
AO
IN
S
T
T
10% unless otherwise specified.
A
A
Table 19-6. DAC Characteristics
10% unless otherwise specified.
70 C.
70 C.
Device Specifications
Conditions
Conditions
134
1
1
2.375
2.375
Min
Min
0
2
5
0
Typ
Typ
2.5
10
8
3
8
V
AV
2.625
AV
Max
Max
200
100
REF
15
36
15
0.5
0.5
0.5
0.5
4
10
1
1
CC
1
1
CC
5
Unit
LSB
LSB
LSB
LSB
Unit
LSB
LSB
LSB
LSB
K
K
Bit
pF
Bit
pF
V
V
V
V
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