AD7770 Datasheet, PDF (6/94 Pages) Analog Devices – 8-Channel, 24-Bit, Simultaneous Sampling ADC

AD7770
Data Sheet
Parameter
TEMPERATURE RANGE
Specified Performance
Functional²
TEMPERATURE SENSOR
Accuracy
DIGITAL FILTER RESPONSE (SINC3)
Group Delay
Settling Time
Pass Band
Decimation Rate
CLOCK SOURCE
Frequency
Duty Cycle
Σ-Δ ADC
Speed and Performance
Resolution
ODR
No Missing Codes
AC Accuracy
Dynamic Range
32 kSPS
8 kSPS
2 kSPS
THD
Signal-to-Noise-and-Distortion
Ratio (SINAD)
SFDR
Intermodulation Distortion
(IMD)
DC Power Supply Rejection
DC Common-Mode Rejection
Ratio
Crosstalk
DC ACCURACY
INL
High Resolution Mode
Low Power Mode
Offset Error
Offset Error Drift
Test Conditions/Comments
TMIN to TMAX
TMIN to TMAX
−0.1 dB
−3 dB
High resolution mode
Low power mode
High resolution mode
Low power mode
Up to 24 kSPS
Shorted inputs, PGAGAIN = 1
High resolution mode
High resolution mode
Low power mode
Low power mode
−0.5 dBFS, high resolution mode
−0.5 dBFS, low power mode
fIN = 60 Hz
High resolution mode, 16 kSPS,
PGAGAIN = 1
fA = 50 Hz, fB = 51 Hz, high
resolution mode
fA = 50 Hz, fB = 51 Hz, low power
mode
AVDD1x = 3.3 V
Endpoint method, PGAGAIN = 1
Other PGA gains
Endpoint method, PGAGAIN = 1
Other PGA gains
Over time
Min
−40
−40
64
0.655
1.3
45:55
24
24
80
Typ
Max
+105
+125
±2
See the SRC Group Delay section
See the Settling Time section
See the SRC Bandwidth section
See the SRC Bandwidth section
4095.99
50:50
8.192
4.096
55:45
32
8
103
113
103
113
−109
−105
106
132
−125
−105
−90
−120
±8
±15
±4
±15
±9
±17
±6
±15
±15
±90
±0.25
−2
Unit
°C
°C
°C
MHz
MHz
%
Bits
kSPS
kSPS
Bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ppm of FSR
ppm of FSR
ppm of FSR
ppm of FSR
µV
µV/°C
µV/
1000 hours
Rev. A | Page 6 of 94