AD7173-8 데이터 시트보기 (PDF) - Analog Devices
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AD7173-8
Analog Devices
AD7173-8 Datasheet PDF : 64 Pages
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AD7173-8
Data Sheet
SPECIFICATIONS
AVDD1 = 3.0 V to 5.5 V, AVDD2 = 2 V to 5.5 V, IOVDD = 2 V to 5.5 V, AVSS = DGND = 0 V, REF+ = 2.5 V, REF− = AVSS,
internal master clock = 2 MHz, TA = TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
ADC SPEED AND PERFORMANCE
Output Data Rate (ODR)
No Missing Codes1
Resolution
Noise
Noise Free Resolution
ACCURACY
Integral Nonlinearity (INL)
Offset Error2
Offset Drift
Offset Drift vs. Time3
Gain Error2
Gain Drift vs. Temperature1
Gain Drift vs. Time3
REJECTION
Power Supply Rejection
Common-Mode Rejection
At DC
At 50 Hz and 60 Hz1
Normal Mode Rejection1
ANALOG INPUTS
Differential Input Voltage Range
Absolute AIN Voltage Limits1
Buffers Disabled
Buffers Enabled
Analog Input Current
Buffers Enabled
Input Current
Input Current Drift
Buffers Disabled
Input Current
Input Current Drift
Crosstalk
INTERNAL REFERENCE
Output Voltage
Initial Accuracy1
Temperature Coefficient
0°C to +105°C
−40°C to +105°C
Reference Load Current, ILOAD
Test Conditions/Comments
Min
1.25
Excluding sinc3 filter at 31.25 kSPS
24
See Table 6
See Table 6
Sinc5 + sinc1 filter (default)
31.25 kSPS, REF+ = 5 V
2.6 kSPS, REF+ = 5 V
1.25 SPS, REF+ = 5 V
2.5 V reference
5 V reference
Internal short
Internal short
25°C, AVDD1 = 5 V
AVDD1 and AVDD2, VIN = 1 V
VIN = 0.1 V
95
20 SPS ODR (post filter); 50 Hz ± 1 Hz and
120
60 Hz ± 1 Hz
50 Hz ± 1 Hz and 60 Hz ± 1 Hz
Internal clock, 20 SPS ODR (post filter)
71
External clock, 20 SPS ODR (post filter)
85
Single cycle settling enabled (default)
AVSS − 0.05
AVSS
External clock
Internal clock (±2.5% clock)
1 kHz input
100 nF external capacitor on REFOUT to AVSS
REFOUT with respect to AVSS
TA = 25°C4
−0.1
IL
−10
Typ
Max
Unit
31250
SPS
Bits
17.5
18.4
24
±3
±7.5
±5
±40
±350
±450
±10
±50
±0.5 ±1
±3
90
Bits
Bits
Bits
ppm/FSR
ppm/FSR
µV
nV/°C
nV/1000 hrs
ppm/FSR
ppm/FSR/°C
ppm/FSR/
1000 hrs
dB
dB
dB
90
90
±VREF
dB
dB
V
AVDD1 + 0.05 V
AVDD1 − 1.1 V
±2
±25
±6
±0.1
±0.5
−120
2.5
+0.1
3.5
81
3.5
101
+10
nA
pA/°C
µA/V
nA/V/°C
nA/V/°C
dB
V
% of V
ppm/°C
ppm/°C
mA
Rev. B | Page 4 of 64
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