MAX9945_10 datasheet(5/14 Pages) MAXIM

Part #	MAX9945

Description	38V, Low-Noise, MOS-Input, Low-Power Op Amp

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Manufacturer	MAXIM [Maxim Integrated Products]

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INPUT OFFSET VOLTAGE

vs. COMMON-MODE VOLTAGE

COMMON-MODE VOLTAGE (V)

10

5

0

-10

-5

1000

800

0

600

400

200

-15

38V, Low-Noise, MOS-Input,

Low-Power Op Amp

_______________________________________________________________________________________

5

INPUT OFFSET VOLTAGE

vs. TEMPERATURE

TEMPERATURE (

°C)

100 120

80

40

60

-20

0

20

1000

800

0

600

400

200

-40

VCM = 0V

VCM = VEE

VCM = VCC - 1.2V

OPEN-LOOP GAIN

vs. FREQUENCY

FREQUENCY (Hz)

120

80

-40

40

0

1m

1

10

100

1k

10k 100k 1M 10M

COMMON-MODE REJECTION RATIO

vs. FREQUENCY

FREQUENCY (Hz)

1M

100k

100

1k

10k

-90

-80

-70

-60

-50

-40

-30

-20

-100

10

10M

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

FREQUENCY (Hz)

1M

100k

10k

1k

100

10

-100

-80

-60

-40

-20

0

-120

110M

UNIPOLAR

PSRR-

UNIPOLAR

PSRR+

BIPOLAR

PSRR

RESISTOR ISOLATION

vs. CAPACITIVE LOAD

RISO (

Ω)

100

10

1000

10,000

100

1

STABLE

UNSTABLE

Typical Operating Characteristics (continued)

(VCC = +15V, VEE = -15V, VIN+ = VIN- = VGND = 0V, ROUT = 100kΩ to GND, TA = -40°C to +125°C, typical values are at TA = +25°C,

unless otherwise noted.)

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