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Data Sheet
AD7322
Rev. B | Page 3 of 36
SPECIFICATIONS
Unless otherwise noted, VDD = 12 V to 16.5 V, VSS = 12 V to 16.5 V, VCC = 4.75 V to 5.25 V, VDRIVE = 2.7 V to 5.25 V, VREF = 2.5 V to 3.0 V
internal/external, fSCLK = 20 MHz, fS = 1 MSPS, TA = TMAX to TMIN; for VCC < 4.75 V, all specifications are typical.
Table 2.
B Version
Min
Typ
Max
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 50 kHz sine wave
Signal-to-Noise Ratio (S
NR)276
dB
Differential mode
72.5
dB
Single-ended/pseudo differential mode
Signal-to-Noise + Distortion (SINA
D)275
dB
Differential mode; ±2.5 V and ±5 V ranges
76
dB
Differential mode; 0 V to +10 V and ±10 V ranges
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 (TH
D)280
dB
Differential mode; ±2.5 V and ±5 V ranges
82
dB
Differential mode; 0 V to +10 V and ±10 V ranges
77
dB
Single-ended/pseudo differential mode;
±2.5 V and ±5 V ranges
80
dB
Single-ended/pseudo differential mode;
0 V to +10 V and ±10 V ranges
Peak Harmonic or Spurious Noise
80
dB
Differential mode; ±2.5 V and ±5 V ranges
82
dB
Differential mode; 0 V to +10 V and ±10 V ranges
78
dB
Single-ended/pseudo differential mode;
±2.5 V and ±5 V ranges
79
dB
Single-ended/pseudo differential mode;
0 V to +10 V and ±10 V ranges
Intermodulation Distortion (IM
D)2fa = 50 kHz, fb = 30 kHz
Second-Order Terms
88
dB
Third-Order Terms
90
dB
7
ns
50
ps
Common-Mode Rejection Ratio
79
dB
Channel-to-Channel Isolatio
n272
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
DC ACCURACY
All dc accuracy specifications are typical for 0 V to
10 V mode
Single-ended/pseudo differential mode:
1 LSB = FSR/4096; unless otherwise noted
Differential mode: 1 LSB = FSR/8192; unless
otherwise noted
Resolution
13
Bits
No Missing Codes
12-bit plus
sign (13 bits)
Bits
Differential mode
11-bit plus
sign (12 bits)
Bits
Single-ended/pseudo differential mode
±1.1
LSB
Differential mode
±1
LSB
Single-ended/pseudo differential mode
0.7/+1.2
LSB
Single-ended/pseudo differential mode
(LSB = FSR/8192)