ISL28291 Intersil Corporation, ISL28291 Datasheet - Page 7

• Manufacturer Part Number: ISL28291
• Description: Single And Dual Ultra-low Noise, Rail-to-rail, Op Amp
• Manufacturer: Intersil Corporation

Typical Performance Curves
FIGURE 15. INPUT REFERRED NOISE CURRENT vs
0.0001
0.001
100
0.01
-0.02
-0.04
-0.06
-0.08
10
0.08
0.06
0.04
0.02
0.1
1
FIGURE 17. SMALL SIGNAL STEP RESPONSE
0.1
1
0
0
0
FIGURE 13. THD+N @ 1kHz vs V
FREQUENCY
20
0.5
1
40
V+ = ±2.5V
A
R
V
V
OUT
L
1.0
60
= +1
= 10kΩ
10
V+ = 5V
A
R
FREQUENCY = 1kHz
FILTER = 400Hz TO 22kHz
FREQUENCY (Hz)
V
L
= 100mV
= +1
= 10kΩ
80
V
TIME (ns)
1.5
7
OUT
100 120 140 160 180 200
100
V
P-P
(V
IN
P-P
2.0
)
1k
(Continued)
V
2.5
OUT
OUT
10k
3.0
ISL28191, ISL28291
100k
3.5
FIGURE 14. INPUT REFERRED NOISE VOLTAGE vs
FIGURE 18. LARGE SIGNAL (1V) STEP RESPONSE
-0.2
-0.4
-0.6
-0.8
0.8
0.6
0.4
0.2
10
5
4
3
2
1
0
1
0
0.1
-1
0
ENABLE
FIGURE 16. ENABLE/DISABLE TIMING
FREQUENCY
100
1
0
200
EN INPUT
V+ = ±2.5V
A
R
R
V
10
DISABLE
300
V
OUT
OUTPUT
F
L
FREQUENCY (Hz)
TIME (ns)
= +2
= R
= 10kΩ
1
= 1V
G
V
TIME (µs)
V
400
OUT
= 499Ω
IN
100
P-P
500
2
1k
ENABLE
600
V+ = 5V
A
R
C
V
V
IN
L
L
September 19, 2007
= +1
= 10kΩ
= 10pF
700
= 1VDC
10k
3
800
FN6156.4
100k
4