ISL28474 Intersil Corporation, ISL28474 Datasheet - Page 6

• Manufacturer Part Number: ISL28474
• Description: (ISL28274 / ISL28474) Rail-to-Rail Input-Output Instrumentation Amplifier and Precision Operational Amplifier
• Manufacturer: Intersil Corporation

Typical Performance Curves
FIGURE 11. AMPLIFIER “B” (OP-AMP) FREQUENCY
FIGURE 7. AMPLIFIER “A”(INAMP) PSRR vs FREQUENCY
FIGURE 9. AMPLIFIER “A”(INAMP) INPUT CURRENT NOISE
+1
-1
-2
-3
-4
-5
-6
-7
0
8
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
120
100
1k
80
60
40
20
0
V
A
C
R
10
1
V
OUT
L
F
=0/R
= 1
= 3pF
A
= 50mVp-p
SPECTRAL DENSITY
RESPONSE vs SUPPLY VOLTAGE
V
G
= 100
= INF
100
10
10k
A
V
V
S
RL = 1k
V
RL = 10k
= 100
S
= ±2.5V
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
= ±2.5V
1k
100
PSRR-
6
100k
10k
1k
(Continued)
PSRR+
100k
V
V
S
RL = 1k
1M
RL = 10k
S
10k
= ±1.2V
= ±1.2V
ISL28274, ISL28474
1M
5M
100k
FIGURE 10. AMPLIFIER “A”(INAMP) 0.1 Hz TO 10Hz INPUT
FIGURE 12. AMPLIFIER “B” (OP-AMP) FREQUENCY
FIGURE 8. AMPLIFIER “A”(INAMP) INPUT VOLTAGE NOISE
45
40
35
30
25
20
15
10
700
600
500
400
300
200
100
5
0
0
100
1
A
R
C
R
R
V
L
L
F
G
= 100
= 10kΩ
= 3pF
= 100kΩ
= 1kΩ
SPECTRAL DENSITY
VOLTAGE NOISE
RESPONSE vs SUPPLY VOLTAGE
10
1k
A
V
FREQUENCY (Hz)
= 100
FREQUENCY (Hz)
V
100
S
TIME (1s/DIV)
= ±1.0V
10k
1k
V
S
100k
= ±2.5V
V
S
10k
December 13, 2006
= ±1.2V
FN6345.0
1M
100k