OPA227U datasheet(8/27 Pages) TI

Part #	OPA227U

Description	High Precision, Low Noise OPERATIONAL AMPLIFIERS

Download	27 Pages

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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OPA227, 2227, 4227

OPA228, 2228, 4228

8

SBOS110A

www.ti.com

TYPICAL PERFORMANCE CURVES (CONT)

At TA = +25°C, RL = 10kΩ, and VS = ±15V, unless otherwise noted.

2.0

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

0

5

10

15

20

25

30

35

40

Supply Voltage (V)

CHANGE IN INPUT BIAS CURRENT

vs POWER SUPPLY VOLTAGE

Curve shows normalized change in bias current

with respect to V

S = ±10V. Typical IB may range

from –2nA to +2nA at V

S = ±10V.

CHANGE IN INPUT BIAS CURRENT

vs COMMON-MODE VOLTAGE

15

Common-Mode Voltage (V)

–15

–10

–50

5

10

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

V

S = ±15V

V

S = ±5V

Curve shows normalized change in bias current

with respect to V

CM = 0V. Typical IB may range

from –2nA to +2nA at V

CM = 0V.

OUTPUT VOLTAGE SWING vs OUTPUT CURRENT

15

14

13

12

11

10

–10

–11

–12

–13

–14

–15

V+

(V+) –1V

(V+) –2V

(V+) –3V

(V–) +3V

(V–) +2V

(V–) +1V

V–

0

102030405060

Output Current (mA)

–55

°C

–40

°C

–55

°C

85

°C

25

°C

85

°C

25

°C

–40

°C

125

°C

125

°C

100

10

1

±1

±10

±100

Gain (V/V)

SETTLING TIME vs CLOSED-LOOP GAIN

0.01%

OPA227

0.1%

V

S = ±15V, 10V Step

C

L = 1500pF

R

L = 2kΩ

0.01%

OPA228

0.1%

SLEW RATE vs TEMPERATURE

125

Temperature (

°C)

–75

–50

–25

0

25

50

75

100

3.0

2.5

2.0

1.5

1.0

0.5

0

Negative Slew Rate

R

LOAD = 2kΩ

C

LOAD = 100pF

Positive Slew Rate

OPA227

SLEW RATE vs TEMPERATURE

125

Temperature (

°C)

–75

–50

–25

0

25

50

75

100

12

10

8

6

4

2

0

R

LOAD = 2kΩ

C

LOAD = 100pF

OPA228

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OPA227U Datasheet(PDF) 8 Page - Texas Instruments

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