ADuC841/ADuC842/ADuC843
Parameter
DAC AC CHARACTERISTICS
Voltage Output Settling Time
Digital-to-Analog Glitch Energy
DAC CHANNEL SPECIFICATIONS
12, 13
Internal Buffer Disabled ADuC841/ADuC842 Only
DC ACCURACY
10
Resolution
Relative Accuracy
Differential Nonlinearity
11
Offset Error
Gain Error
Gain Error Mismatch
4
ANALOG OUTPUTS
Voltage Range_0
REFERENCE INPUT/OUTPUT REFERENCE OUTPUT
14
Output Voltage (V
REF
)
Accuracy
Power Supply Rejection
Reference Temperature Coefficient
Internal V
REF
Power-On Time
EXTERNAL REFERENCE INPUT
15
Voltage Range (V
REF
)
4
Input Impedance
Input Leakage
POWER SUPPLY MONITOR (PSM)
DV
DD
Trip Point Selection Range
V
DD
= 5 V
15
10
V
DD
= 3 V
15
10
Unit
µs typ
nV-sec typ
Test Conditions/Comments
Full-scale settling time to within
½ LSB of final value
1 LSB change at major carry
12
±3
–1
±1/2
±5
±0.5
0.5
0 to V
REF
2.5
±10
65
±15
2
1
V
DD
20
1
12
±3
–1
±1/2
±5
±0.5
0.5
0 to V
REF
2.5
±10
67
±15
2
1
V
DD
20
1
Bits
LSB typ
LSB max
LSB typ
mV max
% typ
% typ
V typ
V
mV Max
dB typ
ppm/°C typ
ms typ
V min
V max
kΩ typ
µA max
Guaranteed 12-bit monotonic
V
REF
range
V
REF
range
% of full-scale on DAC1
DAC V
REF
= 2.5 V
Of V
REF
measured at the C
REF
pin
T
A
= 25°C
Internal band gap deselected via
ADCCON1.6
Two trip points selectable in this
range programmed via TPD1–0 in
PSMCON, 3 V part only
2.93
3.08
±2.5
0
2000
100,000
100
±10
±1
±10
±1
–75
–40
–660
–400
±10
10
105
0
2000
100,000
100
±10
±1
±10
±1
–25
–15
–250
–140
±10
5
35
V min
V max
% max
ms min
ms max
Cycles min
Years min
µA max
µA typ
µA max
µA typ
µA max
µA typ
µA max
µA typ
µA max
µA min
µA max
DV
DD
Power Supply Trip Point Accuracy
WATCHDOG TIMER (WDT)
4
Timeout Period
FLASH/EE MEMORY RELIABILITY CHARACTERISTICS
16
Endurance
17
Data Retention
18
DIGITAL INPUTS
Input Leakage Current (Port 0, EA)
Logic 1 Input Current
(All Digital Inputs), SDATA, SCLOCK
Logic 0 Input Current (Ports 1, 2, 3) SDATA, SCLOCK
Logic 1 to Logic 0 Transition Current (Ports 2 and 3)
RESET
Nine timeout periods selectable in
this range
V
IN
= 0 V or V
DD
V
IN
= 0 V or V
DD
V
IN
= V
DD
V
IN
= V
DD
V
IL
= 450 mV
V
IL
= 2 V
V
IL
= 2 V
V
IN
= 0 V
V
IN
= 5 V, 3 V Internal Pull Down
V
IN
= 5 V, 3 V Internal Pull Down
Rev. 0 | Page 4 of 88
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