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AD7779 Datasheet(PDF) 6 Page - Analog Devices

Part # AD7779
Description  8-Channel, 24-Bit, Simultaneous Sampling ADC
PDF  97 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7779 Datasheet(HTML) 6 Page - Analog Devices

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AD7779
Data Sheet
Rev. 0 | Page 6 of 97
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
Reference buffer enabled,
high resolution mode
10
nA/V
Reference buffer enabled,
low power mode
5
nA/V
TEMPERATURE RANGE
Specified Performance
TMIN to TMAX
−40
+105
°C
Functional2
TMIN to TMAX
−40
+125
°C
TEMPERATURE SENSOR
Accuracy
±2
°C
DIGITAL FILTER RESPONSE (SINC3)
Group Delay
See the SRC
Group Delay
section
Settling Time
See the Settling
Time section
Pass Band
−0.1 dB
See the SRC
Bandwidth
section
−3 dB
See the SRC
Bandwidth
section
Decimation Rate
High resolution mode
128
4095.99
Low power mode
64
4095.99
CLOCK SOURCE
Frequency
High resolution mode
0.655
8.192
MHz
Low power mode
1.3
4.096
MHz
Duty Cycle
45:55
50:50
55:45
%
Σ-Δ ADC
Speed and Performance
Resolution
24
Bits
Output Data Rate (ODR)
High resolution mode
16
kSPS
Low power mode
8
kSPS
No Missing Codes
24
Bits
AC Accuracy
Dynamic Range
Shorted inputs, PGAGAIN = 1
16 kSPS
High resolution mode
108
dB
4 kSPS
High resolution mode
116
dB
Low power mode
106
dB
1 kSPS
Low power mode
116
dB
THD
−0.5 dBFS, high resolution mode
−109
dB
−0.5 dBFS, low power mode
−105
dB
SINAD
fIN = 60 Hz
106
dB
SFDR
High resolution mode, 16 kSPS,
PGAGAIN = 1
132
dB
Intermodulation Distortion
(IMD)
fA = 50 Hz, fB = 51 Hz, high
resolution mode
−125
dB
fA = 50 Hz, fB = 51 Hz, low power
mode
−105
dB
DC Power Supply Rejection
AVDD1x = 3.3 V
−90
dB
DC Common-Mode Rejection
Ratio
80
dB
Crosstalk
−120
dB



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