
AD7321
Rev. 0 | Page 13 of 36
–50
–100
10
1000
INPUT FREQUENCY (kHz)
T
100
–55
–60
–65
–70
–75
–80
–85
–90
–95
V
CC
= V
DRIVE
= 5V
V
DD
/V
T
= 25°C
INTERNAL REF
RANGE = ±10V AND ±2.5V
f
= 500kSPS
SINGLE-ENDED MODE
±10V RANGE
R
IN
= 4000
R
IN
= 2000
R
IN
= 1000
R
IN
= 100
R
IN
= 50
±2.5V RANGE
R
IN
= 4700
R
IN
= 3000
R
IN
= 1000
R
IN
= 100
R
IN
= 50
0
Figure 22. THD vs. Analog Input Frequency for Various Source Impedances,
Single-Ended Mode