OPA140_15 datasheet(10/44 Pages) TI

Part #	OPA140

Description	High-Precision, Low-Noise, Rail-to-Rail Output,11-MHz JFET Op Amp

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Manufacturer	TI [Texas Instruments]

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0.001

0.0001

0.00001

-100

-

120

140

10

100

1k

10k 20k

Frequency (Hz)

G = +1

G = -1

V

= 3V

BW = 80kHz

OUT

RMS

R = 2k

L

W

0.01

0.001

0.0001

0.00001

0.1

1

10

100

Frequency (Hz)

-

80

100

120

140

-

BW = 80kHz

R = 2k

1kHz Signal

L

W

G = 1

-

G = +1

NOTE: Increase at low signal levels is a

of increased % contribution of noise.

result

0.1

Frequency(Hz)

100k

10

1

100

1k

10k

100

10

1

Time (1s/div)

180

160

140

120

100

80

60

40

20

0

1

10

100

1k

10k

100k

1M

10M

100M

Frequency (Hz)

CMRR

+PSRR

-PSRR

0.12

0.10

0.08

0.06

0.04

0.02

0

-50

-25

-75

0

25

50

75

100

125

150

Temperature( C)

°

OPA140, OPA2140, OPA4140

SBOS498B – JULY 2010 – REVISED NOVEMBER 2015

www.ti.com

Typical Characteristics (continued)

at TA = 25°C, VS = ±18 V, RL = 2 kΩ connected to midsupply, VCM = VOUT = midsupply, unless otherwise noted.

Figure 7. CMRR and PSRR vs Frequency

Figure 8. Common-Mode Rejection Ratio vs Temperature

(Referred to Input)

Figure 10. Input Voltage Noise Density vs Frequency

Figure 9. 0.1-Hz to 10-Hz Noise

Figure 11. THD+N Ratio vs Frequency

Figure 12. THD+N Ratio vs Output Amplitude

10

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