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AD7689BCPZ Fiches technique(PDF) 4 Page - Analog Devices

No de pièce AD7689BCPZ
Description  16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC
Download  28 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD7689BCPZ Fiches technique(HTML) 4 Page - Analog Devices

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AD7682/AD7689
Rev. 0 | Page 4 of 28
AD7682B/AD7689B
Parameter
Conditions/Comments
Min
Typ
Max
Unit
AC ACCURACY5
Dynamic Range
93.8
dB6
Signal-to-Noise
fIN = 20 kHz, VREF = 5 V
92.5
93.5
dB
fIN = 20 kHz, VREF = 4.096 V internal REF
91
92.3
dB
fIN = 20 kHz, VREF = 2.5 V internal REF
87.5
88.8
dB
SINAD
fIN = 20 kHz, VREF = 5 V
91
92.5
dB
fIN = 20 kHz, VREF = 5 V
−60 dB input
33.5
dB
fIN = 20 kHz, VREF = 4.096 V internal REF
90
91
dB
fIN = 20 kHz, VREF = 2.5 V internal REF
87
88.4
dB
Total Harmonic Distortion
fIN = 20 kHz
−100
dB
Spurious-Free Dynamic Range
fIN = 20 kHz
110
dB
Channel-to-Channel Crosstalk
fIN = 100 kHz on adjacent channel(s)
−125
dB
SAMPLING DYNAMICS
−3 dB Input Bandwidth
Selectable
0.425
1.7
MHz
Aperture Delay
VDD = 5 V
2.5
ns
INTERNAL REFERENCE
REF Output Voltage
2.5 V, @ 25°C
2.490
2.500
2.510
V
4.096 V, @ 25°C
4.086
4.096
4.106
V
REFIN Output Voltage7
2.5 V, @ 25°C
1.2
V
4.096 V, @ 25°C
2.3
V
REF Output Current
±300
μA
Temperature Drift
±10
ppm/°C
Line Regulation
VDD = 5 V ± 5%
±15
ppm/V
Long-Term Drift
1000 hours
50
ppm
Turn-On Settling Time
CREF = 10 μF
5
ms
EXTERNAL REFERENCE
Voltage Range
REF input
0.5
VDD + 0.3
V
REFIN input (buffered)
0.5
VDD − 0.2
V
Current Drain
250 kSPS, REF = 5 V
50
μA
TEMPERATURE SENSOR
Output Voltage8
@ 25°C
283
mV
Temperature Sensitivity
1
mV/°C
DIGITAL INPUTS
Logic Levels
VIL
−0.3
+0.3 × VIO
V
VIH
0.7 × VIO
VIO + 0.3
V
IIL
−1
+1
μA
IIH
−1
+1
μA
DIGITAL OUTPUTS
Data Format9
Pipeline Delay10
VOL
ISINK = +500 μA
0.4
V
VOH
ISOURCE = −500 μA
VIO − 0.3
V


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