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ISL28168 Datasheet, PDF (6/16 Pages) Intersil Corporation – 34μA Micro-power Single and Dual Rail-to-Rail Input-Output (RRIO) Low Input Bias Current Op Amps
◁
ISL28168, ISL28268
Typical Performance Curves V+ = 5V, V- = 0V,VCM = 2.5V, RL = Open (Continued)
10
0
V+ = 5V
RL = 10k
-0.2
CL = 16.3pF
-0.4
AV = +1
-0.6
V+ = 5V RL = 10k
CL = 16.3pF AV=1000
Rg = 100, Rf = 100k
1
-0.8
-1.0
-1.2
-1.4
0.1
1
10
100
1k
10k
100k
FREQUENCY (Hz)
-1.6
0 1 2 3 4 5 6 7 8 9 10
TIME (s)
FIGURE 13. INPUT CURRENT NOISE DENSITY vs FREQUENCY
FIGURE 14. INPUT VOLTAGE NOISE 0.1Hz TO 10Hz
0.6
0.4
0.2
0
V+, V- = ±2.5V
RL = 10k
-0.2
CL = 16.3pF
Rg = Rf = 10k
-0.4
AV = 2
VOUT = 1VP-P
-0.6
0
50 100 150 200 250 300 350 400
TIME (µs)
FIGURE 15. LARGE SIGNAL STEP RESPONSE
0.020
0.018
0.016
0.014
0.012
0.010
0.008
V+, V- = ±2.5V
RL = 10k
CL = 16.3pF
Rg= Rf = 10k
AV = 2
VOUT = 10mVP-P
0.006
0
50 100 150 200 250 300 350 400
TIME (µs)
FIGURE 16. SMALL SIGNAL STEP RESPONSE
6
1.2
V-ENABLE
V-OUT
5
1.0
4
0.8
V+ = 5V
3
Rg = Rf = 10k
0.6
CL = 16.3pF
2
AV = +2
0.4
1
VOUT = 1VP-P
0.2
RL = 10k
0
0
-1
-0.2
0
50 100 150 200 250 300 350 400
TIME (µs)
FIGURE 17. ISL28168 ENABLE TO OUTPUT RESPONSE
500
400
300
200
100
0
-100
-200
V+ = 5V
-300
RL = OPEN
-400
-500
Rf = 100k, Rg = 100
AV = +1000
-1
0
1
2
3
4
5
6
VCM (V)
FIGURE 18. INPUT OFFSET VOLTAGE vs COMMON MODE
INPUT VOLTAGE
6
FN6378.2
September 13, 2007
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