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AD7770 Datasheet(PDF) 24 Page - Analog Devices

Part # AD7770
Description  8-Channel, 24-Bit, Simultaneous Sampling ADC
PDF  98 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7770 Datasheet(HTML) 24 Page - Analog Devices

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Data Sheet
AD7770
Rev. C | Page 23 of 97
85
125
120
115
110
105
100
95
90
ODR (kHz)
VIN = 0dBFS
VREF = 2.5V
TEMPERATURE = 25°C
GAIN = 1
GAIN = 2
GAIN = 4
GAIN = 8
1
32
16
8
4
2
Figure 38. SNR vs. ODR at 16 kSPS, High Resolution Mode
95
100
105
110
115
120
PGA GAIN
1
2
4
8
TEMPERATURE = 25°C
ODR = 16kSPS
Figure 39. Dynamic Range vs. PGA Gain, High Resolution Mode
–35
–25
–30
–20
–15
–10
–5
0
1
2
4
8
PGA GAIN
CH 0
CH 1
CH 2
CH 3
CH 4
CH 5
CH 6
CH 7
TEMPERATURE = 25°C
VIN = 0V
VREF = 2.5V
AVDD1x = 3.3V
Figure 40. Offset Error vs. PGA Gain, High Resolution Mode
85
125
120
115
110
105
100
95
90
ODR (kHz)
VIN = 0dBFS
VREF = 2.5V
TEMPERATURE = 25°C
GAIN = 1
GAIN = 2
GAIN = 4
GAIN = 8
0.5
8
4
2
1
Figure 41. SNR vs. ODR at 4 kSPS, Low Power Mode
95
100
105
110
115
120
PGA GAIN
1
2
4
8
TEMPERATURE = 25°C
ODR = 4kSPS
Figure 42. Dynamic Range vs. PGA Gain, Low Power Mode
–35
–25
–30
–20
–15
–10
–5
5
0
1
2
4
8
PGA GAIN
CH 0
CH 1
CH 2
CH 3
CH 4
CH 5
CH 6
CH 7
TEMPERATURE = 25°C
VIN = 0V
VREF = 2.5V
AVDD1x = 3.3V
Figure 43. Offset Error vs. PGA Gain, Low Power Mode



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