OPA861IDBVRG4 datasheet(8/32 Pages) TI1

Part #	OPA861IDBVRG4

Description	Wide Bandwidth Operational Transconductance Amplifier (OTA)

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Manufacturer	TI1 [Texas Instruments]

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2

1

0

Quiescent Current Adjust Resistor (

Ω)

0.1

1

10

100

1k

10k

100k

16

14

12

10

8

6

4

2

0

Quiescent Current Adjust Resistor (

Ω)

0

200

400

600

800 1000 1200 1400 1600 1800 2000

E−Input Current Noise (pA/

√Hz)

B−Input Voltage Noise (nV/

√Hz)

B−Input Current Noise (pA/

√Hz)

60

50

40

30

20

10

0

QuiescentCurrent(mA)

0

1

3

2

4

5

6

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8

100

10

1

Frequency (Hz)

100

1k

10k

100k

1M

10M

E−Input Current Noise (5.2pA/

√Hz)

B−Input Voltage Noise (2.4nV/

√Hz)

B−Input Current Noise (1.65pA/

√Hz)

500

490

480

470

460

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440

430

QuiescentCurrent(mA)

0

1

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120

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QuiescentCurrent(mA)

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OPA861

SBOS338G – AUGUST 2005 – REVISED MAY 2013

www.ti.com

TYPICAL CHARACTERISTICS: VS = ±5V (continued)

At TA = +25°C, IQ = 5.4mA, and RL = 500Ω, unless otherwise noted.

B-INPUT RESISTANCE vs QUIESCENT CURRENT

C-OUTPUT RESISTANCE vs QUIESCENT CURRENT

Figure 8.

Figure 9.

E-OUTPUT RESISTANCE vs QUIESCENT CURRENT

INPUT VOLTAGE AND CURRENT NOISE DENSITY

Figure 10.

Figure 11.

1MHz OTA VOLTAGE AND CURRENT NOISE DENSITY

QUIESCENT CURRENT vs RADJ

vs QUIESCENT CURRENT ADJUST RESISTOR

Figure 12.

Figure 13.

8

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OPA861IDBVRG4 Datasheet(PDF) 8 Page - Texas Instruments

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