Ultra-Low Offset/Drift, Low-Noise,

Precision SOT23 Amplifiers

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(2.7V

unless otherwise noted.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Output Short-Circuit Duration

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Input Offset Voltage

(Note 1)

0.1

2

µV

Long-Term Offset Drift

50

nV/1000hr

Input Bias Current

(Note 2)

1

pA

Input Offset Current

(Note 2)

2

pA

Input Noise Voltage

Ω, 0.01Hz to 10Hz

1.5

Common-Mode Input

Voltage Range

Inferred from CMRR test

GND

- 0.1

1.3

V

Common-Mode Rejection Ratio

CMRR

-0.1V

120

140

dB

Power-Supply Rejection Ratio

PSRR

2.7V

120

140

dB

0.05V

(Note 1)

Ω

125

150

Large-Signal Voltage Gain

0.1V

(Note 1)

Ω

125

145

dB

410

Ω

410

35

50

Output Voltage Swing

Ω

35

50

mV

Output Short-Circuit Current

To either supply

40

mA

Output Leakage Current

0

0.01

1

µA

MAX4238

0.35

Slew Rate

MAX4239

1.6

V/µs

MAX4238

1

Gain-Bandwidth Product

GBWP

measured at f = 100kHz

MAX4239

6.5

MHz

MAX4238

1

Minimum Stable Closed-Loop

Gain

phase margin = 60

o

MAX4239

10

V/V