ISL28274 Datasheet, PDF (7/18 Pages) Intersil Corporation – Micropower, Single Supply, Rail-to-Rail Input-Output Instrumentation Amplifier and Precision Operational Amplifier

ISL28274, ISL28474
Typical Performance Curves V₊ = +5V, V_- = GND, VCM = 1/2V₊, T_A = +25°C, unless otherwise specified. (Continued)
1000
800
600
400
200
0
-200
-400
-600
V₊ = 5V
R_L = OPEN
-800
R_F = 100k, R_G = 100
A_V = +1000
-1000
-1
0
1
2
3
4
5
6
V_CM (V)
FIGURE 13. INPUT OFFSET VOLTAGE vs COMMON MODE
INPUT VOLTAGE
100
80
V₊ = 5V
60
R_L = OPEN
40
R_F= 100k, R_G = 100
A_V = +1000
20
0
-20
-40
-60
-80
-100-1
0
1
2
3
4
5
6
V_CM (V)
FIGURE 14. INPUT BIAS CURRENT vs COMMON-MODE
INPUT VOLTAGE
120
80
80
40
40
0
0
-40
-40
-80
-80
1
-120
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
FIGURE 15. AMPLIFIER “B” (OP AMP) A_VOL vs FREQUENCY
@ 100kΩ LOAD
100
200
80
150
PHASE
100
60
50
40
0
20
GAIN
-50
0
-100
-20
10
100
1k
10k
100k
FREQUENCY (Hz)
-150
1M
FIGURE 16. AMPLIFIER “B” (OP AMP) A_VOL vs FREQUENCY
@ 1kΩ LOAD
10
0 ^{V+ = 5VDC}
V_SOURCE = 1V_P-P
-10 _{RL = 10kΩ}
-20 _{AV = +1}
-30
-40
PSRR -
-50
-60
-70
-80
-90
-100
10
100
1k
PSRR +
10k
100k
1M
TEMPERATURE (°C)
FIGURE 17. AMPLIFIER “B” (OP AMP) PSRR vs FREQUENCY
10
0 ^V+^{, V}- ^{= ±2.5VDC}
-10
V_SOURCE = 1V_P-P
R_L = 10kΩ
-20
-30
-40
-50
-60
-70
-80
-90
-100
10
100
1k
10k
100k
1M
TEMPERATURE (°C)
FIGURE 18. AMPLIFIER “B” (OP AMP) CMRR vs FREQUENCY
7
FN6345.3
May 14, 2009