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ADUCM322BBCZ Datasheet(PDF) 6 Page - Analog Devices

Part # ADUCM322BBCZ
Description  Precision Analog Microcontroller, Analog I/O with MDIO Interface, ARM Cortex-M3
PDF  24 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADUCM322BBCZ Datasheet(HTML) 6 Page - Analog Devices

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Data Sheet
ADuCM322
Rev. 0 | Page 5 of 23
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
EXTERNAL REFERENCE INPUT
Range1
1.8
2.5
V
ADC
Input Current
200
µA
BUFFERED REFFERNCE OUTPUT
Output Voltage
2.504
V
Accuracy
±8
mV
TA = 25°C, load = 1.2 mA
Reference Temperature Coefficient1
±15
µV/°C
100 nF from BUF_VREF2V5 to AGND4
Output Impedance
10
Ω
TA = 25°C
Load Current1
1.2
mA
VDAC CHANNEL SPECIFICATIONS
RL = 5 kΩ, CL = 100 pF2
DC Accuracy1
12
Bits
1 LSB = 2.5 V/212
Resolution1
12
Bits
Number of data bits
Relative Accuracy3
INL
±4
LSB
1 LSB = 2.5 V/212
Differential Nonlinearity3
DNL
−0.99
+1
LSB
Guaranteed monotonic, 1 LSB =
2.5 V/212
Offset Error
±3
±15
mV
2.5 V internal reference,
DAC Output Code 0
Drift
±18
µV/°C
Gain Error4
±0.3
±0.85
%
0 V to internal VREF range
±0.4
±1
%
0 V to AVDD range
Drift
6.5
ppm/°C
Excluding reference drift
Mismatch
0.1
%
% of full scale on DAC0
Analog Outputs
Output Voltage Range 11
0.15
2.5
V
Output Voltage Range 21
0.15
AVDDx − 0.15
V
Output Impedance
2
Ω
DAC AC Characteristics
Output Settling Time
10
µs
Settled to ±1 LSB
Glitch Energy
±20
nV-sec
1 LSB change when the maximum
number of bits changes simultane-
ously in the DACxDAT register
COMPARATOR
Input
Offset Voltage
±10
mV
Bias Current
1
nA
Voltage Range1
AGNDx
AVDDx − 1.2
V
Capacitance
7
pF
Hysteresis1
8.5
15
mV
When enabled in software
Response Time
7
µs
AFECOMP, Bits[2:1] = 0
TEMPERATURE SENSOR
Indicates die temperature, see
Figure 9
Resolution
0.5
°C
When precision calibrated by the
user5
Accuracy1
1.34
1.43
V
ADC measured voltage for
temperature sensor channel without
calibration, TA = 25°C
POWER-ON RESET
POR
2.85
2.9
V
WATCHDOG TIMER
WDT
Timeout Period
32
sec
Default at power-up
FLASH/EE MEMORY
Endurance1
10,000
Cycles
Data Retention1
20
Years
TJ = 85°C



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