5962-8688701CA 查看數據表（PDF） - Analog Devices

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5962-8688701CA

Dual, Low Noise, Low Offset Instrumentation Operational Amplifier

Analog Devices 

OP227–Typical Performance Characteristics

0.1␮F

10⍀

100k⍀

D.U.T.

2k⍀

5␮F

VOLTAGE GAIN

= 50,000

BACK-TO-BACK

47␮F

OP12

4.3k⍀

23.5␮F

100k⍀ 2.35␮F

SCOPE

X1

RIN = 1M⍀

0.1␮F

24.3k⍀

110k⍀

120

100

80 90

40

0

–40

–80 10

0%

–120

1 SEC / DIV

BACK-TO-BACK

10␮F

BACK-TO-BACK

4.7␮F

TPC 1. Voltage Noise Test Circuit

(0.1 Hz to 10 Hz p-p)

0.1Hz TO 10Hz PEAK-TO-PEAK NOISE

TPC 2. Low Frequency Noise

(Observation Must Be Limited to 10

Seconds to Ensure 0.1 Hz Cutoff)

10

9

8

7

6

5

4

3

l/f CORNER

2 = 2.7Hz

TA = 25؇C

VS = ؎15V

100

10

741

1

l/f CORNER

LOW NOISE

10

AUDIO

l/f CORNER

OP AMP

2.7 Hz

l/f CORNER

OP227

0.1

TA = 25؇C

VS = ؎15V

1

1

10

100

1k

FREQUENCY – Hz

TPC 3. Voltage Noise Density vs.

Frequency

INSTRUMENTATION AUDIO RANGE

10

RANGE,TO DC TO 20 kHz

1

10

100

1k

FREQUENCY – Hz

TPC 4. Comparison of Op Amp Voltage

Noise Spectra

0.01

100

1k

10k

BANDWIDTH – Hz

100k

TPC 5. Input Wideband Noise vs. Band-

width (0.1 Hz to Frequency Indicated)

100

TA = 25؇C

VS = ؎15V

R1

R2

RS = 2R1

10

AT 10Hz

AT 1kHZ

RESISTOR NOISE ONLY

1

100

1k

10k

SOURCE RESISTANCE – ⍀

TPC 6. Total Noise vs. Source

Resistance

5

VS = ؎15V

4

AT 10Hz

3

AT 1kHz

2

1

–50 –25

0 25 50 75 100 125

TEMPERATURE – ؇C

TPC 7. Voltage Noise Density vs.

Temperature

10.0

1.0

l/f CORNER

= 140Hz

0.1

10

100

1k

10k

FREQUENCY – Hz

TPC 8. Current Noise Density vs.

Frequency

–6–

REV. A

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