EVAL-AD7796EB View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'EVAL-AD7796EB' PDF : 24 Pages View PDF
AD7796/AD7797
SPECIFICATIONS
AVDD = 2.7 V to 5.25 V, DVDD = 2.7 V to 5.25 V, GND = 0 V, all specifications TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
ADC CHANNEL
Output Update Rate
No Missing Codes2
Resolution
RMS Noise and Update Rates
Integral Nonlinearity
Offset Error3, 4
Offset Error Drift vs. Temperature4
Full-Scale Error3, 4, 5
Gain Drift vs. Temperature4
Power Supply Rejection
ANALOG INPUTS
Differential Input Voltage Ranges
Absolute AIN Voltage Limits2
Common-Mode Voltage, VCM
Analog Input Current
Average Input Current2
Average Input Current Drift
Normal Mode Rejection2
Internal Clock
@ 50 Hz, 60 Hz
@ 50 Hz
@ 60 Hz
External Clock
@ 50 Hz, 60 Hz
@ 50 Hz
@ 60 Hz
Common-Mode Rejection
@ DC
@ 50 Hz, 60 Hz2
@ 50 Hz, 60 Hz2
REFERENCE
External REFIN Voltage
Reference Voltage Range2
Absolute REFIN Voltage Limits2
Average Reference Input Current
Average Reference Input Current Drift
Normal Mode Rejection
Common-Mode Rejection
TEMPERATURE SENSOR
Accuracy
Sensitivity
AD7796B/AD7797B1 Unit
Test Conditions/Comments
4.17 to 123
24
16
See Table 7 and Table 8
See Table 6
±10
±1
±10
±10
±3
90
Hz nom
Bits min
Bits min
ppm of FSR typ
μV typ
nV/°C typ
μV typ
ppm/°C typ
dB min
AD7797 only
AD7796 only
AIN = 1 V/128
±VREF/128
GND + 300 mV
AVDD − 1.1
0.5
V nom
V min
V max
V min
VREF = REFIN(+) – REFIN(–)
VCM = (AIN(+) + AIN(–))/2
±250
±2
pA max
pA/°C typ
Update rate < 100 Hz
65
dB min
80
dB min
90
dB min
80
dB min
94
dB min
90
dB min
90
dB min
90
dB min
90
dB min
2.5
0.1
AVDD
GND − 30 mV
AVDD + 30 mV
400
±0.03
Same as for analog inputs
100
V nom
V min
V max
V min
V max
nA/V typ
nA/V/°C typ
dB typ
±2
°C typ
0.81
mV/°C typ
80 dB typ, 50 ± 1 Hz, 60 ± 1 Hz, FS[3:0] = 10106
90 dB typ, 50 ± 1 Hz, FS[3:0] = 10016
100 dB typ, 60 ± 1 Hz, FS[3:0] = 10006
90 dB typ, 50 ± 1 Hz, 60 ± 1 Hz, FS[3:0] = 10106
100 dB typ, 50 ± 1 Hz, FS[3:0] = 10016
100 dB typ, 60 ± 1 Hz, FS[3:0] = 10006
AIN = 7.81 mV
50 ± 1 Hz, 60 ± 1 Hz, FS[3:0] = 10106
50 ± 1 Hz (FS[3:0] = 10016), 60 ± 1 Hz,
FS[3:0] = 10006
REFIN = REFIN(+) – REFIN(–)
Applies if user calibrates the temperature sensor
Rev. A | Page 3 of 24
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