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AD7328
SPECIFICATIONS
Unless otherwise noted, V
DD
= 12 V to 16.5 V, V
SS
= 12 V to 16.5 V, V
CC
= 4.75 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
= 20 MHz, f
S
= 1 MSPS, T
A
= T
MAX
to T
MIN
. With V
CC
< 4.75 V, all specifications are typical.
Table 2.
B Version
Parameter
1
Min
Typ
Max
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR)
2
76
72.5
Signal-to-Noise + Distortion
(SINAD)
2
76
72
Rev. A | Page 3 of 36
Unit
dB
dB
dB
Test Conditions/Comments
f
IN
= 50 kHz sine wave
Differential mode
Single-ended/pseudo differential mode
Differential mode; ±2.5 V and ±5 V ranges
75
dB
dB
Differential mode; 0 V to +10 V and ±10 V ranges
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 and ±10 V ranges
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
72.5
dB
Total Harmonic Distortion (THD)
2
82
80
77
dB
dB
dB
80
dB
Peak Harmonic or Spurious Noise
(SFDR)
2
80
dB
82
78
dB
dB
Differential mode; 0 V to +10 V and ±10 V ranges
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
fa = 50 kHz, fb = 30 kHz
Up to 100 kHz ripple frequency; see Figure 17
79
dB
Intermodulation Distortion (IMD)
2
Second-Order Terms
Third-Order Terms
Aperture Delay
3
Aperture Jitter
3
Common-Mode Rejection Ratio
(CMRR)
2
Channel-to-Channel Isolation
2
Full Power Bandwidth
DC ACCURACY
4
Resolution
No Missing Codes
88
90
7
50
79
dB
dB
ns
ps
dB
13
12-bit
plus sign
11-bit
plus sign
72
22
5
dB
MHz
MHz
Bits
Bits
f
IN
on unselected channels up to 100 kHz; see Figure 14
At 3 dB
At 0.1 dB
All specifications are typical for 0 V to 10 V mode.
Differential mode
Bits
Single-ended/pseudo differential mode
Integral Nonlinearity
2
0.7/+1.2
±1.1
±1
LSB
LSB
LSB
Differential mode
Single-ended/pseudo differential mode
Single-ended/pseudo differential mode
(LSB = FSR/8192)
Differential mode; guaranteed no missing codes to
13 bits
Single-ended mode; guaranteed no missing codes to
12 bits
Single-ended/psuedo differential mode
(LSB = FSR/8192)
Differential Nonlinearity
2
0.9/+1.5
LSB
±0.9
LSB
0.7/+1
LSB
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