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AD7682 Fiches technique(PDF) 3 Page - Analog Devices

No de pièce AD7682
Description  16-Bit, 8-Channel, 500 kSPS PulSAR ADC
Download  28 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD7682 Fiches technique(HTML) 3 Page - Analog Devices

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AD7699
Rev. 0 | Page 3 of 28
SPECIFICATIONS
VDD = 4.5 V to 5.5 V, VREF = 4.096 to VDD, VIO = 1.8 V to VDD, all specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Conditions/Comments
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
Unipolar mode
0
+V
REF
V
Bipolar mode
−V
REF/2
+V
REF/2
V
Absolute Input Voltage
Positive input, unipolar and bipolar modes
−0.1
V
REF + 0.1
V
Negative or COM input, unipolar mode
−0.1
+0.1
V
Negative or COM input, bipolar mode
V
REF/2 − 0.1
V
REF/2
V
REF/2 + 0.1
V
Analog Input CMRR
f
IN = 250 kHz
68
dB
Leakage Current at 25°C Input
Impedance1
Acquisition phase
1
nA
THROUGHPUT
Conversion Rate
Full Bandwidth2
0
500
kSPS
¼ Bandwidth2
0
125
kSPS
Transient Response
Full-scale step, full bandwidth
400
ns
Full-scale step, ¼ bandwidth
1600
ns
ACCURACY
No Missing Codes
16
Bits
Integral Linearity Error
−1.5
±0.5
+1.5
LSB3
Differential Linearity Error
−1
±0.25
+1.5
LSB
Transition Noise
REF = VDD = 5 V
0.5
LSB
Gain Error4
All modes
−10
±1
+10
LSB
Gain Error Match
−3
±1
+3
LSB
Gain Error Temperature Drift
±0.3
ppm/°C
Offset Error4
All modes
−10
±1
+10
LSB
Offset Error Match
−3
±1
+3
LSB
Offset Error Temperature Drift
±0.3
ppm/°C
Power Supply Sensitivity
VDD = 5 V ± 5%
±1.5
LSB
AC Accuracy
Dynamic Range
93.3
dB5
Signal-to-Noise
f
IN = 20 kHz, VREF = 5 V
92
92.5
dB
f
IN = 20 kHz, VREF = 4.096 V internal REF
89.5
91.5
dB
SINAD
f
IN = 20 kHz, VREF = 5 V
90
91.5
dB
f
IN = 20 kHz, VREF = 5 V, −60 dB input
33.5
dB
f
IN = 20 kHz, VREF = 4.096 V internal REF
89
90.5
dB
Total Harmonic Distortion
f
IN = 20 kHz
−97
dB
Spurious-Free Dynamic Range
f
IN = 20 kHz
112
dB
Channel-to-Channel Crosstalk
f
IN = 100 kHz on adjacent channel(s)
−125
dB
SAMPLING DYNAMICS
−3 dB Input Bandwidth
Full bandwidth
14
MHz
¼ bandwidth
3.6
MHz
Aperture Delay
VDD = 5 V
2.5
ns


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