Datasheet

AD8638/AD8639
Rev. F | Page 13 of 20
T
A
= 25°C, unless otherwise noted.
0
–20
–40
–60
–80
–100
–120
–140
100 1k 10k 100k
FREQUENCY (Hz)
CHANNEL SEPARATION (dB)
R
L
= 10k
V
SY
= ±8V
A
V
= –10
06895-147
R
L
= 2k
Figure 47. Channel Separation vs. Frequency
0.1
0.01
0.001
0.0001
10
100
THD + NOISE (%)
1k 10k
100k
FREQUENCY (Hz)
06895-149
V
SY
= ±8V
A
V
= +1
R
L
= 2k
V
IN
= 1V rms
V
IN
= 3V rms
Figure 48. THD + Noise vs. Frequency
V
CM
(V)
I
B
(pA)
300
250
200
150
50
100
0
–50
0123456789 1610 11 12 13 14 15
06895-034
V
SY
= 16V
T
A
= 125°C
Figure 49. Input Bias Current vs. Input Common-Mode Voltage
0
–20
–40
–60
–80
–100
–120
–140
100 1k 10k 100k
FREQUENCY (Hz)
CHANNEL SEPARATION (dB)
06895-148
V
SY
= ±8V
A
V
= –100
R
L
= 10k
R
L
= 2k
Figure 50. Channel Separation vs. Frequency
0.1
0.01
0.001
0.0001
10
100
THD + NOISE (%)
1k 10k
100k
FREQUENCY (Hz)
06895-150
V
S
= ±8V
A
V
= +1
R
L
= 10k
V
IN
= 1V rms
V
IN
= 3V rms
Figure 51. THD + Noise vs. Frequency