ADUC844 Analog Devices, ADUC844 Datasheet - Page 3
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ADUC844
Manufacturer Part Number
ADUC844
Description
MicroConverter/ Dual 16-Bit/24-Bit ADCs with Embedded 62kB FLASH MCU
Manufacturer
Analog Devices
Datasheet
1.ADUC844.pdf
(20 pages)
PARAMETER
AUXILIARY ADC
AUXILIARY ADC ANALOG INPUTS
ADC SYSTEM CALIBRATION
DAC
REV. PrB
No Missing Codes
Resolution
Output Noise
Integral Non Linearity
Offset Error
Offset Error Drift
Fullscale Error
Gain Error Drift
Power Supply Rejection
Normal Mode 50/60 Hz Rejection
Differential Input Voltage Ranges
Average Analog Input Current
Analog Input Current Drift
Absolute AIN Voltage Limits
Full Scale Calibration Limit
Zero Scale Calibration Limit
Input Span
Voltage Range
Resistive Load
Capactive Load
Output Impedance
I
DC Specifications
AC Specifications
SINK
(Bipolar Mode – ADC0CON3 = 0)
(Unipolar Mode – ADC0CON3 = 1)
On AIN
On REFIN
Resolution
Relative Accuracy
Differential NonLinearity
Offset Error
Gain Error
Voltage Output Settling Time
Digital to Analog Glitch Energy
3
8
4
5
2,7
7
2
2, 11
PRELIMINARY TECHNICAL DATA
9, 10
-1.05 x FS
0.8 x FS
MIN
A
- 0.03
16
80
60
60
12
GND
See Table XII
0 à REFIN
0 à AV
0 à V
± REFIN
± 0.5
TYP
-2.5
125
100
± 2
0.5
± 3
± 1
16
10
50
15
10
-2
1
REF
+1.05 x FS
DD
2.1 x FS
-3-
+ 0.03
MAX
A
± 15
± 50
± 1
-1
VDD
ppm of FSR
Bits Pk-Pk
pA/V/°C
ppm/°C
UNITS
LSBs
nA/V
LSBs
LSB
V /°C
Bits
dBs
dBs
dBs
nVs
mV
k
Bit
pF
us
V
V
V
V
V
V
V
V
%
%
A
CONDITION
20 Hz Update Rate
Range = ± 2.5V, 20Hz Update Rate
Output Noise varies with selected Update Rates
1 LSB
AIN=1V, Range=± 2.56V
50/60Hz ± 1Hz, 19.79Hz Update Rate
50/60Hz ± 1Hz, 19.79Hz Update Rate
REFIN=REFIN(+)-REFIN(-) (or Int 1.25V Ref)
REFIN=REFIN(+)-REFIN(-) (or Int 1.25V Ref)
DACCON.2 = 0
DACCON.2 = 1
From DAC Output to AGND
From DAC Output to AGND
Guaranteed 12-Bit Monotonic
AV
V
Setling time to 1LSB of final value
1 LSB change at major carry
REF
DD
Range
16
Range
ADuC844