INA149AID datasheet(6/24 Pages) TI

Part #	INA149AID

Description	High Common-Mode Voltage Difference Amplifier

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Manufacturer	TI [Texas Instruments]

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6 / 24 page

0

20

40

60

80

100

120

10

100

1k

10k

100k

1M

10M

Frequency (Hz)

−40°C

+25°C

+125°C

G001

−6

−4

−2

0

2

4

6

−400

−300

−200

−100

0

100

200

300

400

Common−Mode Input Voltage (V)

VS = ±18 V

VS = ±15 V

VS = ±10 V

VS = ±5 V

G066

0

50

100

150

200

250

300

350

400

0

2

4

6

8

10

12

14

16

18

20

Power−Supply Voltage (±V)

G002

−20

−16

−12

−8

−4

0

4

8

12

16

20

Output Voltage (V)

VS = ±18 V

VS = ±15 V

VS = ±12 V

VS = ±10 V

G003

−20

−16

−12

−8

−4

0

4

8

12

16

20

Output Voltage (V)

VS = ±18 V

VS = ±15 V

VS = ±12 V

VS = ±10 V

G004

−20

−16

−12

−8

−4

0

4

8

12

16

20

Output Voltage (V)

VS = ±18 V

VS = ±15 V

VS = ±12 V

VS = ±10 V

G005

INA149

SBOS579A

– SEPTEMBER 2011 – REVISED NOVEMBER 2011

www.ti.com

TYPICAL CHARACTERISTICS

At TA = +25°C, RL = 2 kΩ connected to ground, and VS = ±15 V, unless otherwise noted.

CMRR vs FREQUENCY

COMMON-MODE REJECTION

Figure 1.

Figure 2.

COMMON-MODE OPERATING RANGE

TYPICAL GAIN ERROR FOR RL = 10 kΩ

vs POWER-SUPPLY VOLTAGE

(Curves Offset for Clarity)

Figure 3.

Figure 4.

TYPICAL GAIN ERROR FOR RL = 2 kΩ

TYPICAL GAIN ERROR FOR RL = 1 kΩ

(Curves Offset for Clarity)

Figure 5.

Figure 6.

6

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