MAX44250AUA datasheet(5/14 Pages) MAXIM

Part #	MAX44250AUA

Description	20V, Ultra-Precision, Low-Noise Op Amps

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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5

Maxim Integrated

MAX44250/MAX44251/MAX44252

20V, Ultra-Precision, Low-Noise Op Amps

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 3.3V, VSS = 0V, VIN+ = VIN- = VDD/2, RL = 10kI to VDD/2, TA = -40°C to +125°C, unless otherwise noted. Typical values are

at TA = +25°C.) (Note 2)

Typical Operating Characteristics

(VDD = 10V, VSS = 0V, outputs have RL = 10kI to VDD/2. TA = +25NC, unless otherwise specified.)

Note 2: All devices are 100% production tested at TA = +25°C. Temperature limits are guaranteed by design.

Note 3: Guaranteed by design.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

uNITS

AC SPECIFICATIONS

Input Voltage-Noise Density

eN

f = 1kHz

6.2

nV/√Hz

Input Voltage Noise

0.1Hz < f < 10Hz

123

nVP-P

Input Current-Noise Density

iN

f = 1kHz

0.3

pA/√Hz

Input Capacitance

CIN

2

pF

Gain-Bandwidth Product

GBW

10

MHz

Phase Margin

PM

CL = 20pF

60

Degrees

Slew Rate

SR

AV = 1V/V, VOUT = 1VP-P, 10% to 90%

5

V/Fs

Capacitive Loading

CL

No sustained oscillation, AV = 1V/V

500

pF

Total Harmonic Distortion

THD

VOUT = 1VP-P,

AV = +1V/V,

VCM = VDD/4,

RL = 10kI to

VDD/2

f = 1kHz

-124

dB

f = 20kHz

-100

Settling Time

To 0.01%, VOUT = 1V step, AV = -1V/V

200

ns

OFFSET VOLTAGE HISTOGRAM

OFFSET VOLTAGE (µV)

4.5

4.0

3.0

2.0

3.5

1.5

2.5

1.0

0.5

10

5

15

20

25

30

35

40

45

50

55

60

65

70

75

0

5.5

5.0

INPUT OFFSET VOLTAGE DRIFT HISTOGRAM

OFFSET VOLTAGE DRIFT (µV/°C)

0.005

0.004

0.002 0.003

0 0.001

-0.001

5

10

15

20

25

30

35

40

45

0

0.006

SUPPLY CURRENT vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

20

15

10

5

0.2

0.4

0.6

0.8

1.0

1.2

1.4

0

025

TA = +85°C

TA = +25°C T

A = 0°C

TA = -40°C

SUPPLY CURRENT

PER AMPLIFIER

TA = +125°C

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