Datasheet

AD7193 Data Sheet
Rev. D | Page 4 of 56
SPECIFICATIONS
AV
DD
= 3 V to 5.25 V, DV
DD
= 2.7 V to 5.25 V, AGND = DGND = 0 V; REFINx(+) = 2.5 V or AV
DD
, REFINx(−) = AGND,
MCLK = 4.92 MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Table 1.
Parameter Min Typ Max Unit Test Conditions/Comments
1
ADC
Output Data Rate
4.7
4800
Hz
Chop disabled
1.17
1200
Hz
Chop enabled, sinc
4
filter
1.56 1600 Hz Chop enabled, sinc
3
filter
No Missing Codes
2
24 Bits FS[9:0]
3
> 1, sinc
4
filter
24 Bits FS[9:0]
3
> 4, sinc
3
filter
Resolution See the RMS Noise and Resolution section
RMS Noise and Output
Data Rates
See the RMS Noise and Resolution section
Integral Nonlinearity
Gain = 1
2
±2 ±10 ppm of FSR AV
DD
= 5 V
±2 ±15 ppm of FSR AV
DD
= 3 V
Gain > 1 ±5 ±30 ppm of FSR AV
DD
= 5 V
±15 ±30 ppm of FSR AV
DD
= 3 V
Offset Error
4, 5
±150/gain µV Chop disabled
±1 µV Chop enabled, AV
DD
= 5 V
±0.5 µV Chop enabled, AV
DD
= 3 V
Offset Error Drift vs.
Temperature
±150/gain nV/°C Gain = 1 to 16; chop disabled
±5 nV/°C Gain = 32 to 128; chop disabled
±5 nV/°C Chop enabled
Offset Error Drift vs. Time 25
nV/1000
hours
Gain > 32
Gain Error
4
±0.001 %
AV
DD
= 5 V, gain = 1, T
A
= 25°C
(factory calibration conditions)
−0.39 %
Gain = 128, before full-scale calibration
(see Table 27)
±0.003 %
Gain > 1, after internal full-scale calibration,
AV
DD
≥ 4.75 V
±0.005 %
Gain > 1, after internal full-scale calibration,
AV
DD
< 4.75 V
Gain Drift vs.
Temperature
±1 ppm/°C
Gain Drift vs. Time 10
ppm/
1000 hours
Gain = 1
Power Supply Rejection 90 dB Gain = 1, V
IN
= 1 V
95 110 dB Gain > 1, V
IN
= 1 V/gain
Common-Mode Rejection
@ DC 110 dB Gain = 1, V
IN
= 1 V
@ DC 105 dB Gain > 1, V
IN
= 1 V/gain
@ 50 Hz, 60 Hz
2
120 dB
10 Hz output data rate, 50 Hz ± 1 Hz,
60 Hz ± 1 Hz
@ 50 Hz
2
120 dB 50 Hz output data rate, 50 Hz ± 1 Hz
@ 60 Hz
2
120 dB 60 Hz output data rate, 60 Hz ± 1 Hz
@ 50 Hz
2
115 dB
Fast settling, FS[9:0]
3
= 6, average by 16,
50 Hz ± 1 Hz
@ 60 Hz
2
115 dB
Fast settling, FS[9:0]
3
= 5, average by 16,
60 Hz ± 1 Hz