AD7195 Analog Devices, AD7195 Datasheet - Page 12

• Manufacturer Part Number: AD7195
• Description: 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA and AC Excitation
• Manufacturer: Analog Devices

Specifications of AD7195

• Resolution (bits): 24bit
• # Chan: 4
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni,SE-Bip,SE-Uni
• Ain Range: (2Vref/PGA Gain) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

AD7195
–1.0
–2.0
–3.0
3.0
2.0
1.0
–2
–4
–6
–0.020 –0.015 –0.010 –0.005
66
64
62
60
58
56
54
6
4
2
0
0
–2.5
–60
Figure 14. Offset Error (Gain = 1, Chop Disabled)
–2.0
–40
–1.5
–20
Figure 13. INL (Gain = 128)
Figure 12. INL (Gain = 1)
–1.0
0
TEMPERATURE (°C)
–0.5
20
V
V
IN
IN
40
0
0
(V)
(V)
0.005
0.5
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1.0
80
0.010
100
1.5
0.015
120
2.0
0.020
140
2.5
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1.000008
1.000007
1.000006
1.000005
1.000004
1.000003
1.000002
1.000001
1.000000
128.003
128.002
128.001
128.000
127.999
127.998
127.997
127.996
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
–0.7
0
–60
–60
–60
Figure 15. Offset Error (Gain = 128, Chop Disabled)
Figure 17. Gain Error (Gain = 128, Chop Disabled)
Figure 16. Gain Error (Gain = 1, Chop Disabled)
–40
–40
–40
–20
–20
–20
0
0
0
TEMERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
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60
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80
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