AD7190 Analog Devices, AD7190 Datasheet - Page 12

• Manufacturer Part Number: AD7190
• Description: 4.8 kHz Ultra-Low Noise 24-Bit Sigma-Delta ADC with PGA
• Manufacturer: Analog Devices

Specifications of AD7190

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

AD7190
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 6. Noise (V
8,388,760
8,388,758
8,388,756
8,388,754
8,388,752
8,388,750
8,388,748
8,388,746
Output Data Rate = 4.7 Hz, Gain = 128, Chop Disabled, Sinc
250
200
150
100
50
0
0
Figure 7. Noise Distribution Histogram (V
REF
= 5 V, Output Data Rate = 4.7 Hz, Gain = 128, Chop
200
Disabled, Sinc
400
CODE
SAMPLE
4
Filter)
600
REF
= 5 V,
800
4
Filter)
1000
Rev. B | Page 12 of 40
Figure 8. Noise (V
Output Data Rate = 4800 Hz, Gain = 128, Chop Disabled, Sinc
8,388,950
8,388,900
8,388,850
8,388,800
8,388,750
8,388,700
8,388,650
8,388,600
8,388,550
8,388,500
8,388,450
30
25
20
15
10
5
0
0
Figure 9. Noise Distribution Histogram (V
100
REF
= 5 V, Output Data Rate = 4800 Hz, Gain = 128, Chop
200
Disabled, Sinc
300
400
CODE
SAMPLES
500
4
Filter)
600
700
REF
= 5 V,
800
900
4
Filter)
1000