Datasheet

Data Sheet AD7321
Rev. B | Page 3 of 36
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 Unit Test Conditions/Comments
DYNAMIC PERFORMANCE F
IN
= 50 kHz sine wave
Signal-to-Noise Ratio (SNR)
2
76 dB Differential mode, V
CC
= 4.75 V to 5.25 V
75.5 dB Differential mode, V
CC
< 4.75 V
72.5 dB
Single-ended/pseudo differential mode: ±10 V,
±2.5 V and ±5 V ranges, V
CC
= 4.75 V to 5.25 V
72 dB
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
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 Delay
3
7 ns
Aperture Jitter
3
50 ps
Common-Mode Rejection
(CMRR)
2
−79 dB Up to 100 kHz ripple frequency: see Figure 17
Channel-to-Channel
Isolation
2
−72 dB
F
IN
on unselected channels up to 100 kHz: see
Figure 14
Full Power Bandwidth 22 MHz At 3 dB
5 MHz At 0.1 dB