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OP191 bảng dữ liệu(PDF) 4 Page - Analog Devices

tên linh kiện OP191
Giải thích chi tiết về linh kiện  MicroConverter짰 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
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OP191 bảng dữ liệu(HTML) 4 Page - Analog Devices

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ADuC841/ADuC842/ADuC843
Rev. 0 | Page 4 of 88
Parameter
VDD = 5 V
VDD = 3 V
Unit
Test Conditions/Comments
DAC AC CHARACTERISTICS
Voltage Output Settling Time
15
15
µs typ
Full-scale settling time to within
½ LSB of final value
Digital-to-Analog Glitch Energy
10
10
nV-sec typ
1 LSB change at major carry
DAC CHANNEL SPECIFICATIONS12, 13
Internal Buffer Disabled ADuC841/ADuC842 Only
DC ACCURACY10
Resolution
12
12
Bits
Relative Accuracy
±3
±3
LSB typ
Differential Nonlinearity11
–1
–1
LSB max
Guaranteed 12-bit monotonic
±1/2
±1/2
LSB typ
Offset Error
±5
±5
mV max
VREF range
Gain Error
±0.5
±0.5
% typ
VREF range
Gain Error Mismatch4
0.5
0.5
% typ
% of full-scale on DAC1
ANALOG OUTPUTS
Voltage Range_0
0 to VREF
0 to VREF
V typ
DAC VREF = 2.5 V
REFERENCE INPUT/OUTPUT REFERENCE OUTPUT14
Output Voltage (VREF)
2.5
2.5
V
Accuracy
±10
±10
mV Max
Of VREF measured at the CREF pin
TA = 25°C
Power Supply Rejection
65
67
dB typ
Reference Temperature Coefficient
±15
±15
ppm/°C typ
Internal VREF Power-On Time
2
2
ms typ
EXTERNAL REFERENCE INPUT15
Voltage Range (VREF) 4
1
1
V min
VDD
VDD
V max
Input Impedance
20
20
kΩ typ
Input Leakage
1
1
µA max
Internal band gap deselected via
ADCCON1.6
POWER SUPPLY MONITOR (PSM)
DVDD Trip Point Selection Range
2.93
3.08
V min
V max
Two trip points selectable in this
range programmed via TPD1–0 in
PSMCON, 3 V part only
DVDD Power Supply Trip Point Accuracy
±2.5
% max
WATCHDOG TIMER (WDT) 4
Timeout Period
0
2000
0
2000
ms min
ms max
Nine timeout periods selectable in
this range
FLASH/EE MEMORY RELIABILITY CHARACTERISTICS16
Endurance17
100,000
100,000
Cycles min
Data Retention18
100
100
Years min
DIGITAL INPUTS
Input Leakage Current (Port 0, EA)
±10
±10
µA max
VIN = 0 V or VDD
±1
±1
µA typ
VIN = 0 V or VDD
Logic 1 Input Current
(All Digital Inputs), SDATA, SCLOCK
±10
±10
µA max
VIN = VDD
±1
±1
µA typ
VIN = VDD
Logic 0 Input Current (Ports 1, 2, 3) SDATA, SCLOCK
–75
–25
µA max
–40
–15
µA typ
VIL = 450 mV
Logic 1 to Logic 0 Transition Current (Ports 2 and 3)
–660
–250
µA max
VIL = 2 V
RESET
–400
±10
10
105
–140
±10
5
35
µA typ
µA max
µA min
µA max
VIL = 2 V
VIN = 0 V
VIN = 5 V, 3 V Internal Pull Down
VIN = 5 V, 3 V Internal Pull Down


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