General Description

The MAX4198/MAX4199 low-power, rail-to-rail differential amplifiers are ideal for single-supply applications that benefit from a low 0.01 gain error. The MAX4198 is factory trimmed to a fixed gain of +1V/V, and the MAX4199 is trimmed to a fixed gain of +10V/V. Capable of operating from a single +2.7V to +7.5V supply or from dual ±1.35V to ±3.75V supplies, they consume only 42µA while achieving -3dB bandwidths of 175kHz (MAX4198) and 45kHz (MAX4199). These amplifiers feature a shutdown mode that reduces the supply current to 6.5µA.

Features

♦ Low 0.01 Gain Error

♦ High Common-Mode Rejection: 110dB (MAX4199)

♦ 10µV Input Offset Voltage (MAX4199)

30µV Input Offset Voltage (MAX4198)

♦ +2.7V to +7.5V Single-Supply Operation

♦ 42µA Supply Current

♦ 175kHz (MAX4198) and 45kHz (MAX4199)

-3dB Bandwidth

♦ 6.5µA Shutdown Current

♦ Rail-to-Rail Outputs Drive 5kΩ Loads

♦ Input Voltage Range Extends 100mV

Beyond-theRails (MAX4198)

♦ Available in Space-Saving 8-Pin µMAX Package

Applications

Instrumentation Amplifier Building Block

Differential Voltage Amplifiers

Data-Acquisition Systems

Portable/Battery-Powered Equipment

Transducer Interface

Current-Sense Amplifiers