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AD7321 Datasheet(PDF) 3 Page - Analog Devices

Part No. AD7321
Description  500 kSPS, 2-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC
Download  36 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD7321 Datasheet(HTML) 3 Page - Analog Devices

 
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AD7321
Rev. 0 | Page 3 of 36
SPECIFICATIONS
VDD = 12 V to 16.5 V, VSS = −12 V to −16.5 V, VCC = 2.7 V to 5.25 V, VDRIVE = 2.7 V to 5.25 V, VREF = 2.5 V to 3.0 V internal/external, fSCLK = 10
MHz, fS = 500 kSPS, TA = TMAX to TMIN, unless otherwise noted.
Table 2.
B Version
Parameter1
Min
Typ
Max
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
FIN = 50 kHz sine wave
Signal-to-Noise Ratio (SNR)2
76
dB
Differential mode, VCC = 4.75 V to 5.25 V
75.5
dB
Differential mode, VCC < 4.75 V
72.5
dB
Single-ended/pseudo differential mode; ±10 V, ±2.5 V
and ±5 V ranges, VCC = 4.75 V to 5.25 V
72
dB
Single-ended/pseudo differential mode ; 0 V to 10 V
VCC = 4.75 V to 5.25 V and all ranges at VCC < 4.75 V
Signal-to-Noise + Distortion
(SINAD)2
75
dB
Differential mode; ±2.5 V and ±5 V ranges
74
Differential mode; 0 V to 10 V
76
dB
Differential mode; ±10 V range
72
dB
Single-ended/pseudo differential mode; ±2.5 V and
±5 V ranges
72.5
dB
Single-ended/pseudo differential mode; 0 V to +10 V
and ±10 V ranges
Total Harmonic Distortion (THD)2
−80
dB
Differential mode; ±2.5 V and ±5 V ranges
−79
dB
Differential mode; 0 V to 10 V ranges
−82
dB
Differential mode; ±10 V range
−77
dB
Single-ended/pseudo differential mode; ±5 V range
−79
dB
Single-ended/pseudo differential mode; ±2.5 V range
−80
dB
Single-ended/pseudo differential mode; 0 V to +10 V
and ±10 V ranges
Peak Harmonic or Spurious
Noise (SFDR)2
−81
dB
Differential mode; ±2.5 V and ±5 V ranges
−80
dB
Differential mode; 0 V to 10 V ranges
−82
dB
Differential mode; ±10 V ranges
−78
dB
Single-ended/pseudo differential mode; ±5 V range
−80
Single-ended/pseudo differential mode; ±2.5 V range
−79
dB
Single-ended/pseudo differential mode; 0 V to +10 V
and ±10 V ranges
Intermodulation Distortion
(IMD)2
fa = 50 kHz, fb = 30 kHz
Second-Order Terms
−88
dB
Third-Order Terms
−90
dB
Aperture Delay3
7
ns
Aperture Jitter3
50
ps
Common-Mode Rejection
(CMRR)2
−79
dB
Up to 100 kHz ripple frequency; see Figure 17
Channel-to-Channel Isolation2
−72
dB
FIN on unselected channels up to 100 kHz; see Figure 14
Full Power Bandwidth
22
MHz
At 3 dB
5
MHz
At 0.1 dB


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