Typical Performance Curves
(Continued)
-15
-25
CMRR (dB)
-35
-45
-55
-65
1K
PSRR (dB)
-80
PSRR+
-60
PSRR-
-40
-20
V
S
=±5V
T
A
=25°C
1K
10K
100K
1M
10M
10K
100K
1M
10M
100M
0
100
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 19. CMRR
FIGURE 20. PSRR
1K
VOLTAGE NOISE (nV/√Hz)
-60
-80
XTALK (dB)
DUAL MEASURED CH A TO B
QUAD MEASURED CH A TO D OR B TO C
OTHER COMBINATIONS YIELD
IMPROVED REJECTION
100
-100
-120
-140
V
S
=±5V
R
L
=1kΩ
A
V
=1
V
IN
=110mV
RMS
10K
100K
1M
10M 30M
10
1
100
1K
10K
100K
1M
10M
100M
-160
1K
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 21. INPUT VOLTAGE NOISE SPECTRAL DENSITY
FIGURE 22. CHANNEL SEPARATION
100
80
OVERSHOOT (%)
60
40
20
0
10
STEP SIZE (V)
V
S
=±5V
A
V
=1
R
L
=1kΩ
V
IN
=±50mV
T
A
=25°C
5
4
3
2
1
0
-1
-2
-3
-4
100
1K
-5
55
V
S
=±5V
A
V
=1
R
L
=1kΩ
0.1%
0.1%
65
75
85
95
105
LOAD CAPACITANCE (pF)
SETTLING TIME (ns)
FIGURE 23. SMALL-SIGNAL OVERSHOOT vs LOAD
CAPACITANCE
FIGURE 24. SETTLING TIME vs STEP SIZE
9
FN7119.4
INTERSIL [ INTERSIL CORPORATION ]
