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AD4021BCPZ-R2 数据表(PDF) 5 Page - Analog Devices

部件名 AD4021BCPZ-R2
功能描述  20-Bit, 1.8 MSPS/1 MSPS/500 kSPS, Easy Drive, Differential SAR ADCs
PDF  39 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD4021BCPZ-R2 数据表(HTML) 5 Page - Analog Devices

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Data Sheet
AD4020/AD4021/AD4022
Rev. B | Page 5 of 39
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
AC ACCURACY
Dynamic Range
101
dB
Oversampled Dynamic Range
Oversampling ratio (OSR) = 2
104
dB
OSR = 256
125
dB
OSR = 1024
131
dB
Total RMS Noise
31.5
µV rms
fIN = 1 kHz, −0.5 dBFS, VREF = 5 V
Signal-to-Noise Ratio (SNR)
99
100.5
dB
Spurious-Free Dynamic Range (SFDR)
122
dB
Total Harmonic Distortion (THD)
−123
dB
Signal-to-Noise-and-Distortion Ratio
(SINAD)
98.5
100
dB
fIN = 1 kHz, −0.5 dBFS, VREF = 2.5 V
SNR
93.3
94.7
dB
SFDR
122
dB
THD
−119
dB
SINAD
93
94.5
dB
fIN = 100 kHz, −0.5 dBFS, VREF = 5 V
SNR
99
dB
THD
−100
dB
SINAD
96.5
dB
fIN = 400 kHz, −0.5 dBFS, VREF = 5 V
SNR
92.5
dB
THD
−94
dB
SINAD
90
dB
−3 dB Input Bandwidth
10
MHz
Aperture Delay
1
ns
Aperture Jitter
1
ps rms
REFERENCE
Voltage Range (VREF)
2.4
5.1
V
Current
VREF = 5 V
AD4020
1.8 MSPS
1.1
mA
AD4021
1 MSPS
0.58
mA
AD4022
500 kSPS
0.32
mA
INPUT OVERVOLTAGE CLAMP
IN+/IN− Current (IIN+/IIN−)
VREF = 5 V
50
mA
VREF = 2.5 V
50
mA
VIN+/VIN− at Maximum IIN+/IIN−
VREF = 5 V
5.4
V
VREF = 2.5 V
3.1
V
VIN+/VIN− Clamp On/Off Threshold
VREF = 5 V
5.25
5.4
V
VREF = 2.5 V
2.68
2.8
V
Deactivation Time
360
ns
REF Current at Maximum IIN+/IIN−
VIN+/VIN− > VREF
100
µA
DIGITAL INPUTS
Logic Levels
Input Voltage Low (VIL)
VIO > 2.7 V
−0.3
+0.3 × VIO
V
VIO ≤ 2.7 V
−0.3
+0.2 × VIO
V
Input Voltage High (VIH)
VIO > 2.7 V
0.7 × VIO
VIO + 0.3
V
VIO ≤ 2.7 V
0.8 × VIO
VIO + 0.3
V
Input Current Low (IIL)
−1
+1
µA
Input Current High (IIH)
−1
+1
µA
Input Pin Capacitance
6
pF



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