OP191/OP291/OP491

Rev. E | Page 8 of 24

TYPICAL PERFORMANCE CHARACTERISTICS

180

0

0.22

40

20

–0.18

60

80

100

120

140

160

0.14

0.06

–0.02

–0.10

INPUT OFFSET VOLTAGE (mV)

VS = 3V

TA = 25°C

BASED ON

1200 OP AMPS

Figure 7. OP291 Input Offset Voltage Distribution, VS = 3 V

120

0

7

60

20

1

40

0

100

80

6

4

3

2

INPUT OFFSET VOLTAGE (µV/°C)

5

VS = 3V

–40°C < TA < +125°C

BASED ON 600 OP AMPS

Figure 8. OP291 Input Offset Voltage Drift Distribution, VS = 3 V

125

25

–40

85

0

–0.02

–0.04

–0.06

–0.08

–0.10

–0.12

–0.14

VS = 3V

VCM = 3V

TEMPERATURE (°C)

VCM = 0.1V

VCM = 0V

VCM = 2.9V

Figure 9. Input Offset Voltage vs. Temperature, VS = 3 V

40

30

20

10

0

–10

–20

–30

–40

–50

–60

125

25

85

TEMPERATURE (°C)

–40

VS = 3V

VCM = 3V

VCM = 2.9V

VCM = 0.1V

VCM = 0V

Figure 10. Input Bias Current vs. Temperature, VS = 3 V

0

–0.2

–0.4

–0.6

–0.8

–1.0

–1.2

–1.4

–1.6

–1.8

125

25

85

TEMPERATURE (°C)

–40

VCM = 0.1V

VCM = 2.9V

VCM = 3V

VCM = 0V

VS = 3V

Figure 11. Input Offset Current vs. Temperature, VS = 3 V

INPUT COMMON-MODE VOLTAGE (V)

36

–36

3.0

–18

–30

0.3

–24

0

0

–12

–6

6

12

18

30

24

2.7

2.4

2.1

1.8

1.5

1.2

0.9

0.6

VS = 3V

Figure 12. Input Bias Current vs. Input Common-Mode Voltage, VS = 3 V