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AD4682 Datasheet(PDF) 3 Page - Analog Devices

Part # AD4682
Description  Pseudo Differential Input, 1 MSPS/500 kSPS, Dual, Simultaneous Sampling, 16-Bit, SAR ADCs
PDF  30 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD4682 Datasheet(HTML) 3 Page - Analog Devices

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Data Sheet
AD4682/AD4683
Rev. 0 | Page 3 of 30
SPECIFICATIONS
VCC = 3.0 V to 3.6 V, VLOGIC = 1.65 V to 3.6 V, reference voltage (VREF) = 2.5 V internal, sampling frequency (fSAMPLE) = 1 MSPS for the
AD4682, fSAMPLE = 500 kSPS for the AD4683, TA = −40°C to +125°C, and no oversampling enabled, unless otherwise noted. FS is full scale.
Multifunction pin names may be referenced by their relevant function only.
Table 2.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
RESOLUTION
16
Bits
THROUGHPUT CONVERSION RATE
AD4682
1
MSPS
AD4683
500
kSPS
DC ACCURACY
No Missing Codes
16
Bits
Differential Nonlinearity (DNL) Error
−1.0
±0.5
+1.0
LSB
Integral Nonlinearity (INL) Error
−2.5
±1
+2.5
LSB
Gain Error
−40°C to +125°C
−0.06
±0.02
+0.06
% FS
Gain Error Temperature Drift
−3
±1
+3
ppm/°C
Gain Error Match
0.025
+0.07
% FS
Offset Error
−0.5
±0.05
+0.5
mV
Offset Temperature Drift
−5
±1
+5
µV/°C
Offset Error Match
−40°C to +125°C
0.05
+0.5
mV
AC ACCURACY
Input frequency (fIN) = 1 kHz
Dynamic Range
VREF = 3.3 V external
88
dB
86
dB
Oversampled Dynamic Range
Oversampling ratio (OSR) = ×4
91.8
dB
Signal-to-Noise Ratio (SNR)
VREF = 3.3 V external
85
87.5
dB
84
86
dB
OS_MODE = 1, OSR = ×8, RES = 1
93.4
dB
fIN = 100 kHz
85.3
dB
Spurious-Free Dynamic Range (SFDR)
101
dB
Total Harmonic Distortion (THD)
−100
dB
fIN = 100 kHz
−97
dB
Signal-to-Noise-and-Distortion (SINAD)
VREF = 3.3 V external
84.5
87
dB
83.5
85.5
dB
Channel to Channel Isolation
−110
dB
ANALOG INPUT
Voltage Range
(AINx+) to (AINx−)
−VREF/2
+VREF/2
V
Absolute Input Voltage Range
AINx+
−0.1
VREF + 0.1
V
Common-Mode Input Range
AINx−
VREF/2 ± 0.075
V
Common-Mode Rejection Ratio (CMRR)
fIN = 500 kHz
−70
dB
DC Leakage Current
0.1
1
µA
Input Capacitance
When in track mode
18
pF
When in hold mode
5
pF
SAMPLING DYNAMICS
Input Bandwidth
At −0.1 dB
6
MHz
At −3 dB
25
MHz
Aperture Delay
2
ns
Aperture Delay Match
26
100
ps
Aperture Jitter
20
ps



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