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ADuC847BCPZ62-3 Datasheet(PDF) 6 Page - Analog Devices

Part # ADuC847BCPZ62-3
Description  MicroConverter짰 Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADuC847BCPZ62-3 Datasheet(HTML) 6 Page - Analog Devices

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ADuC845/ADuC847/ADuC848
Data Sheet
Rev. C | Page 6 of 108
Parameter
Min
Typ
Max
Unit
Conditions
AUXILIARY ADC ANALOG INPUTS
(ADuC845 Only)
Differential Input Voltage Ranges5,6
Bipolar Mode (ADC1CON.5 = 0)
±VREF
V
REFIN = REFIN(+) − REFIN(−) (or Int 1.25 VREF)
Unipolar Mode (ADC1CON.5 = 1)
0 – VREF
V
REFIN = REFIN(+) − REFIN(−) (or Int 1.25 VREF)
Average Analog Input Current
125
nA/V
Analog Input Current Drift
±2
pA/V/°C
Absolute AIN/AINCOM Voltage
Limits2, 7
AGND
0.03
AVDD +
0.03
V
Normal Mode Rejection 50 Hz/60 Hz2
On AIN and REFIN
75
dB
50 Hz/60 Hz ± 1 Hz, 16.6 Hz Fadc, SF = 52H,
chop on, REJ60 on
100
dB
50 Hz ± 1 Hz, 16.6 Hz Fadc, SF = 52H, chop on
67
dB
50 Hz/60 Hz ± 1 Hz, 50 Hz Fadc, SF = 52H,
chop off, REJ60 on
100
dB
50 Hz ± 1 Hz, 50 Hz Fadc, SF = 52H, chop off
ADC SYSTEM CALIBRATION
Full-Scale Calibration Limit
+1.05 × FS
V
Zero-Scale Calibration Limit
−1.05 × FS
V
Input Span
0.8 × FS
2.1 × FS
V
DAC
Voltage Range
0 – VREF
V
DACCON.2 = 0
0 – AVDD
V
DACCON.2 = 1
Resistive Load
10
kΩ
From DAC output to AGND
Capactive Load
100
pF
From DAC output to AGND
Output Impedance
0.5
ISINK
50
µA
DC Specifications8
Resolution
12
Bits
Relative Accuracy
±3
LSB
Differential Nonlinearity
−1
LSB
Guaranteed 12-bit monotonic
Offset Error
±50
mV
Gain Error
±1
%
AVDD range
±1
%
VREF range
AC Specifications2, 8
Voltage Output Settling Time
15
µs
Settling time to 1 LSB of final value
Digital-to-Analog Glitch Energy
10
nVs
1 LSB change at major carry
INTERNAL REFERENCE
ADC Reference
Chop enabled
Reference Voltage
1.25 − 1%
1.25
1.25 + 1%
V
Initial tolerance @ 25°C, VDD = 5 V
Power Supply Rejection
45
dB
Reference Tempco
100
ppm/°C
DAC Reference
Reference Voltage
2.5 – 1%
2.5
2.5 + 1%
±1% V
Initial tolerance @ 25°C, VDD = 5 V
Power Supply Rejection
50
dB
Reference Tempco
±100
ppm/°C
TEMPERATURE SENSOR
(ADuC845 Only)
Accuracy
±2
°C
Thermal Impedance
90
°C/W
MQFP
52
°C/W
LFCSP
Footnotes at end of table.


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