Maxim provides amplifiers with specialized operation and multiple features suited for a wide range of applications, including differential output amplifiers, instrumentation/difference amplifiers, log amps and programmable gain amps.

Technical Documentation


Technical Documentation

Technical Documents

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Featured Products

MAX9939 SPI-Programmable Gain Amplifier (PGA) with Input VOS Trim and Output Op Amp

The MAX9939 is a general-purpose, differential-input programmable-gain amplifier (PGA) that is i...
  • SPI-Programmable Gains: 0.2V/V to 157V/V
  • Extremely Low Gain Tempco
  • Integrated Amplifier for R/C Programmable Active Filter
  • Input Offset-Voltage Compensation
  • Input Protection to ±16V
  • 13µA Software Shutdown Mode
  • -40°C to +125°C Operating Temperature Range
  • 10-Pin µMAX Package

MAX4206 Precision Transimpedance Logarithmic Amplifier with Over 5 Decades of Dynamic Range

The MAX4206 logarithmic amplifier computes the log ratio of an input current relative to a refer...
  • Single Supply Capability Reduces System Power Supply Requirements
    • +2.7V to +11V Single-Supply Operation
    • Also Supports ±2.7V to ±5.5V Dual-Supply Operation if Required
  • Wide Dynamic Range Supports Most Photodiode Current Measurement Applications
    • 5 Decades of Dynamic Range (10nA to 1mA)
    • Monotonic Over a 1nA to 1mA Range
    • Adjustable Output Scale Factor
    • 0.25V/Decade Internally Trimmed Output Scale Factor
    • Adjustable Output Offset Voltage
    • Internal 10nA to 10µA Reference Current Source
    • 0.5V Input Common-Mode Voltage
  • Small Package and Few External Components Saves Space and Simplifies Design-In
    • 16-Pin TQFN Package (4mm x 4mm x0.8mm)

MAX4208 Ultra-Low Offset/Drift, Precision Instrumentation Amplifiers with REF Buffer

The MAX4208/MAX4209 ultra-low offset and drift instrumentation amplifiers feature exceptional pr...
  • Spread-Spectrum, Auto-Zero Instrumentation Amplifiers Improve DC Characteristics to Maximize Sensor Performance
    • Input Offset Voltage: ±20µV (max) at +25°C
    • ±0.25% (max) Gain Error
    • Low 0.2µV/°C Offset Voltage Drift
    • 1pA CMOS Input Bias Current
    • True Ground Sensing with Rail-to-Rail Output
    • 750kHz Gain-Bandwidth Product
  • Buffered REF Input for High Accuracy and Bipolar Operation
  • Low Power Operation Supports Remote Sensing and Battery-Powered Applications
    • 2.85V to 5.5V Single-Supply Operation (or ±1.425V to ±2.75V Dual Supplies)
    • 750µA Supply Current
    • 1.4µA Shutdown Mode
  • Adjustable (MAX4208) and Fixed Gain of 100 (MAX4209) Provide Design Flexibility

MAX9626 Low-Noise, Low-Distortion, 1.35GHz Fully Differential Amplifiers

The MAX9626/MAX9627/MAX9628 are low-noise, low-distortion, and high-bandwidth differential ampli...
  • Low-Voltage Noise Density 3.6nV/
  • Low Harmonic Distortion
    • HD2/HD3 of -102/-105dB at 10MHz
    • HD2/HD3 of -86/-80dB at 125MHz
  • Factory Set Gain Options of 1V/V, 2V/V, and 4V/V
  • 1.35GHz Small-Signal Bandwidth
  • Adjustable-Output Common-Mode Voltage
  • Differential-to-Differential or Single-Ended-to-Differential Operation
  • 25µA Shutdown Current
  • Single-Supply Voltage +2.85V to +5.25V
  • Small, 3mm x 3mm 12-Pin TQFN Package

MAX4196 Micropower, Single-Supply, Rail-to-Rail, Precision Instrumentation Amplifiers

The MAX4194 is a variable-gain precision instrumentation amplifier that combines Rail-to-Rail; s...
  • Low Power Consumption Is Ideal for Remote-Sensing and Battery-Powered Applications
    • +2.7V Single-Supply Operation
    • Low Power Consumption
      • 93µA Supply Current
      • 8µA Shutdown Current (MAX4195/MAX4196/MAX4197)
  • Precision Specifications Maximize Sensor Peformance
    • High Common-Mode Rejection: 115dB (G = +10V/V)
    • Input Common-Mode Range Extends 200mV Below GND
    • Low 50µV Input Offset Voltage (G ≥ +100V/V)
    • Low ±0.01% Gain Error (G = +1V/V)
    • 250kHz -3dB Bandwidth (G = +1V/V, MAX4194)
    • Rail-to-Rail Outputs

MAX9004 Low-Power, High-Speed, Single-Supply Op Amp Comparator Reference ICs

The MAX9000 family features the combination of a high-speed operational amplifier, a 185ns compa...
  • Op Amp + Comparator + Reference in Space-Saving µMAX® Package
  • +2.5V to +5.5V Single-Supply Voltage Range
  • 340µA Supply Current (MAX9002/MAX9005)
  • Unity-Gain Stable (GBW = 1.25MHz) and Decompensated (AV > 10V/V, GBW = 8MHz) Options
  • Op-Amp/Comparator Outputs Swing Rail-to-Rail
  • Ground-Sensing Inputs for Both Op Amp and Comparator
  • Op Amp Stable with Capacitive Loads up to 250pF
  • Internal ±2mV Comparator Hysteresis
  • Fast 185ns Propagation-Delay Comparator
  • No Phase Reversal for Overdriven Inputs (Both Op Amp and Comparator)
  • Internal 1.230V Precision Reference (MAX9000/MAX9001/MAX9003/MAX9004)
    • ±1% Initial Accuracy
    • Low 8ppm/°C Temperature Drift
    • Sink or Source up to 1mA
    • Stable for Capacitive Loads up to 100nF