ISL28270 Datasheet, PDF (8/18 Pages) Intersil Corporation – Dual and Quad Channel Micropower Single Supply, Rail-to-Rail Input and Output RRIO Instrumentation Amplifiers

ISL28270, ISL28273, ISL28470
Typical Performance Curves
V₊ = +5V, V_- = 0V V_CM = 1/2V₊, V_EN = V-, R_L = Open, T_A = +25°C,
unless otherwise specified. (Continued)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
1
10
100
1k
10k
100k
FREQUENCY (Hz)
FIGURE 17. ISL28270, ISL28470 INPUT CURRENT NOISE
SPECTRAL DENSITY (GAIN = 100)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1
10
100
1k
10k
100k
FREQUENCY (Hz)
FIGURE 18. ISL28273 INPUT CURRENT NOISE SPECTRAL
DENSITY (GAIN = 10)
TIME (1s/DIV)
FIGURE 19. ISL28270, ISL28470 0.1Hz TO 10Hz INPUT
VOLTAGE NOISE (GAIN = 100)
100
80
60
40
20
0
-20
-40
-60
-80
-100
-1
0
1
2
3
4
5
6
V_CM (V)
FIGURE 21. INPUT OFFSET VOLTAGE vs COMMON MODE
VOLTAGE, V₊ = 5V
8
TIME (1s/DIV)
FIGURE 20. ISL28273 0.1Hz TO 10Hz INPUT VOLTAGE NOISE
(GAIN = 10)
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
-1
0
1
2
3
4
5
6
7
V_CM (V)
FIGURE 22. INPUT BIAS CURRENT vs COMMON MODE
VOLTAGE, V₊ = 5V
FN6260.6
October 21, 2009