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AD7321
SPECIFICATIONS
V
DD
= 12 V to 16.5 V, V
SS
= 12 V to 16.5 V, V
CC
= 2.7 V to 5.25 V, V
DRIVE
= 2.7 V to 5.25 V, V
REF
= 2.5 V to 3.0 V internal/external, f
SCLK
= 10
MHz, f
S
= 500 kSPS, T
A
= T
MAX
to T
MIN
, unless otherwise noted.
Table 2.
B Version
Parameter
1
Min
Typ
Max
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR)
2
76
75.5
72.5
Rev. 0 | Page 3 of 36
Unit
dB
dB
dB
Test Conditions/Comments
F
IN
= 50 kHz sine wave
Differential mode, V
CC
= 4.75 V to 5.25 V
Differential mode, V
CC
< 4.75 V
Single-ended/pseudo differential mode; ±10 V, ±2.5 V
and ±5 V ranges, V
CC
= 4.75 V to 5.25 V
Single-ended/pseudo differential mode ; 0 V to 10 V
V
CC
= 4.75 V to 5.25 V and all ranges at V
CC
< 4.75 V
Differential mode; ±2.5 V and ±5 V ranges
72
dB
Signal-to-Noise + Distortion
(SINAD)
2
75
dB
74
72
76
dB
dB
Differential mode; 0 V to 10 V
Differential mode; ±10 V range
Single-ended/pseudo differential mode; ±2.5 V and
±5 V ranges
Single-ended/pseudo differential mode; 0 V to +10 V
and ±10 V ranges
Differential mode; ±2.5 V and ±5 V ranges
Differential mode; 0 V to 10 V ranges
Differential mode; ±10 V range
Single-ended/pseudo differential mode; ±5 V range
Single-ended/pseudo differential mode; ±2.5 V range
Single-ended/pseudo differential mode; 0 V to +10 V
and ±10 V ranges
Differential mode; ±2.5 V and ±5 V ranges
72.5
dB
Total Harmonic Distortion (THD)
2
82
80
80
79
77
79
dB
dB
dB
dB
dB
dB
Peak Harmonic or Spurious
Noise (SFDR)
2
81
dB
82
79
80
78
80
dB
dB
dB
dB
Differential mode; 0 V to 10 V ranges
Differential mode; ±10 V ranges
Single-ended/pseudo differential mode; ±5 V range
Single-ended/pseudo differential mode; ±2.5 V range
Single-ended/pseudo differential mode; 0 V to +10 V
and ±10 V ranges
fa = 50 kHz, fb = 30 kHz
Intermodulation Distortion
(IMD)
2
Second-Order Terms
Third-Order Terms
Aperture Delay
3
Aperture Jitter
3
Common-Mode Rejection
(CMRR)
2
Channel-to-Channel Isolation
2
Full Power Bandwidth
88
90
7
50
79
dB
dB
ns
ps
dB
Up to 100 kHz ripple frequency; see Figure 17
72
22
5
dB
MHz
MHz
F
IN
on unselected channels up to 100 kHz; see Figure 14
At 3 dB
At 0.1 dB
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