EVAL-ADUC831QSZ Datasheet, PDF (4/76 Pages) Analog Devices – MicroConverter®, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU

ADuC831
SPECIFICATIONS (continued)
Parameter
V_DD = 5 V
DAC CHANNEL SPECIFICATIONS^{12, 13}
Internal Buffer Disabled
DC ACCURACY¹⁰
Resolution
12
Relative Accuracy
±3
Differential Nonlinearity¹¹
–1
± 1/2
Offset Error
±5
Gain Error
–0.3
Gain Error Mismatch⁴
0.5
ANALOG OUTPUTS
Voltage Range_0
REFERENCE INPUT/OUTPUT
REFERENCE OUTPUT¹⁴
Output Voltage (V_REF)
Accuracy
Power Supply Rejection
Reference Temperature Coefficient
Internal V_REF Power-On Time
EXTERNAL REFERENCE INPUT¹⁵
Voltage Range (V_REF)⁴
Input Impedance
Input Leakage
0 to V_REF
2.5
± 2.5
47
± 100
80
0.1
V_DD
20
1
POWER SUPPLY MONITOR (PSM)
DV_DD Trip Point Selection Range
2.63
4.37
DV_DD Power Supply Trip Point Accuracy
WATCHDOG TIMER (WDT)⁴
Time-out Period
FLASH/EE MEMORY RELIABILITY
CHARACTERISTICS¹⁶
Endurance¹⁷
Data Retention¹⁸
DIGITAL INPUTS
Input High Voltage (V_INH)⁴
Input Low Voltage (V_INL)⁴
Input Leakage Current (Port 0, EA)
Logic 1 Input Current
(All Digital Inputs)
Logic 0 Input Current (Port 1, 2, 3)
Logic 1-0 Transition Current (Port 2, 3)
± 3.5
0
2000
100,000
100
2.4
0.8
± 10
±1
± 10
±1
–75
–40
–660
–400
V_DD = 3 V
12
±3
–1
± 1/2
±5
–0.3
0.5
0 to V_REF
2.5
± 2.5
57
± 100
80
0.1
V_DD
20
1
0
2000
100,000
100
2
0.4
± 10
±1
± 10
±1
–25
–15
–250
–140
Unit
Bits
LSB typ
LSB max
LSB typ
mV max
% typ
% max
V typ
V
% max
dB typ
ppm/∞C typ
ms typ
V min
V max
kW typ
mA max
V min
V max
% max
ms min
ms max
Cycles min
Years min
V min
V max
mA max
mA typ
mA max
mA typ
mA max
mA typ
mA max
mA typ
Test Conditions/Comments
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
V_REF and C_REF Pins Shorted
Internal Band Gap Deselected via
ADCCON1.6
Four Trip Points Selectable in
This Range Programmed via
TPD1–0 in PSMCON
Nine Time-out 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
–4–
REV. 0