Maxim offers the widest selection of operational amplifiers (op amps), current-sense amplifiers, and comparators for signal conditioning, monitoring, and control applications.

Operational Amplifiers
Comparators

Current-Sense Amplifiers
Specialized Amplifiers

Featured

MAX44248
Precision 36V op amp provides low-power and low-noise performance in high-voltage applications

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MAX44284
Wide-range, current-sense amplifier offers flexibility and low-power consumption

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MAX44242
20V Dual op amp offers more accuracy with low bias current and low noise per unit of power

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MAX44250EVKIT
Eliminate DC offset and drift with this ultra-precise 20V op amp. Evaluation kit available.

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MAX34408, MAX34409L
I²C/SMBus current monitor with automatic overcurrent shutdown enables accurate measurement for up to four supply rails

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Resources

Product Tree

New Products

MAX40018
Dual nanoPower Op Amps in Tiny WLP and TDFN Packages

Ultra-Low Power Preserves Battery Life
Single 1.7V to 5.5V Supply Voltage Range
Tiny Packages Save Board Space

MAX40016
4-Decade Current Sense Amplifier with Integrated R_SENSE

Integrated Current Sense Element Saves The Space and Cost of Expensive Precision Sense Resistors
4-Decade Measurement Range
Withstands Overloads to 4A

MAX40077
Single/Dual/Quad Ultra-Low Input Bias Current, Low Noise Amplifiers

Low Input Voltage Noise Density: 4.2nV/ at 30KHz
Low Input Current Noise Density: 0.5fA/
Low Input Bias Current: 0.3pA (typ)

MAX40078
Single/Dual/Quad Ultra-Low Input Bias Current, Low Noise Amplifiers

Low Input Voltage Noise Density: 4.2nV/ at 30KHz
Low Input Current Noise Density: 0.5fA/
Low Input Bias Current: 0.3pA (typ)

MAX40079
Single/Dual/Quad Ultra-Low Input Bias Current, Low Noise Amplifiers

Low Input Voltage Noise Density: 4.2nV/ at 30KHz
Low Input Current Noise Density: 0.5fA/
Low Input Bias Current: 0.3pA (typ)

MAX40087
Single/Dual/Quad Ultra-Low Input Bias Current, Low Noise Amplifiers

Low Input Voltage Noise Density: 4.2nV/ at 30KHz
Low Input Current Noise Density: 0.5fA/
Low Input Bias Current: 0.3pA (typ)

MAX40089
Single/Dual/Quad Ultra-Low Input Bias Current, Low Noise Amplifiers

Low Input Voltage Noise Density: 4.2nV/ at 30KHz
Low Input Current Noise Density: 0.5fA/
Low Input Bias Current: 0.3pA (typ)

MAX34417
SMBus Four-Channel Very Wide Dynamic Range Power Accumulator

Enables Code Optimization to Minimize Power Consumption in Portable Platforms
Minimizes Processor Overhead with Autonomous Operation
High-Integration Solution Minimizes Parts Count, PCB Space, and BOM Cost

MAX40088
10MHz/42MHz Low Noise, Low Bias Op-Amps

Low Input Voltage-Noise Density: 4.2nV/√Hz at 30kHz
Low Input Current-Noise Density: 0.5fA/√Hz
Low Input Bias Current: <1pA (Typical)

MAX40075
10MHz/42MHz Low Noise, Low Bias Op-Amps

Low Input Voltage-Noise Density: 4.2nV/√Hz at 30kHz
Low Input Current-Noise Density: 0.5fA/√Hz
Low Input Bias Current: <1pA (Typical)

Technical Docs

Type	ID	Title
Application Note	5718	Simple Solutions for a Single-Device Pulse-Width Modulation (PWM) Waveform Generator
Application Note	5663	Passives Aren’t Really So Passive: Part 1, Capacitors
Application Note	5597	Simulation Shows How Real Op Amps Can Drive Capacitive Loads
Application Note	5420	Total Harmonic Distortion (THD) Test Circuit Eliminates the Need for External Filters
Application Note	5095	DC Error Budget Calculator Simplifies Selection of Optimal Current-Sense Amplifiers
Application Note	5073	Accurate High-Side Current-Sense Amplifier Monitors PWM Load Current
Application Note	4837	Protect Current-Sense Amplifiers from Negative Overvoltage
Application Note	4495	Current-Sense Amplifier Doubles as a High-Common Mode Instrumentation Amplifier
Application Note	4390	Drive the REF Pin of New Generation Instrumentation and Current-Sense Amplifiers Without an Op Amp
Application Note	4301	The Zero-Transistor IC, a New Plateau in IC Design

Technical Docs

Reference Designs

Type	ID	Title
Reference Circuit	714	Isolated Power Supplies for Telecom Applications
System Board	5985	MAXREFDES75#: 24-Bit Weigh Scale with a 16-Bit DAC, 0 to 10V Output
System Board	5979	MAXREFDES38#: ECT/EPT Current Fault Sensor
System Board	5952	MAXREFDES60#: 16-Bit Analog Output Micro PLC
System Board	5943	MAXREFDES61#: 16-Bit Four-Channel Analog Input Micro PLC Card
System Board	5817	Novato (MAXREFDES16#): 4-20mA Loop-Powered Temperature Sensor with HART
System Board	5721	Fremont (MAXREFDES6#): 16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)
System Board	5683	Monterey (MAXREFDES15#): Ultra-Low Power, High-Accuracy 4–20mA 2-Wire Current-Loop Sensor
System Board	5563	Fresno (MAXREFDES11#): 16-Bit High-Accuracy 0 to 10V Input Isolated Analog Front End (AFE)
System Board	5562	Campbell (MAXREFDES4#): 16-Bit High-Accuracy 4-20mA Input Isolated Analog Front End (AFE)
System Board	5561	Santa Fe (MAXREFDES5#): 16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)
Reference Circuit	4321	Precision Instrumentation Amplifiers with Rejustors Solve High-Gain Applications
Reference Circuit	3926	HFRD-22.3: Modular GPON (MOGPON) ONT
Reference Circuit	3490	Parametric Measurement Unit (PMU) Layout Guidelines
Reference Circuit	1867	Optocoupler Extends High-Side Current Sensor to 1kV

Reference Designs

Design Guides

	Edition	Updated
Automotive Solutions Guide, 8th ed. (PDF, 1.32 MB)	8	2014-05-29
Audio Product Guide (PDF, 1.87 MB)	#	2014-04-09
Audio Product Guide (PDF, 1.87 MB)	#	2014-04-09
Audio Product Guide (PDF, 1.89 MB)	13	2014-04-09
Analog Solutions for Xilinx FPGAs Product Guide (PDF, 1.25 MB)	1	2014-04-08
Analog Solutions For Altera Product Guide (PDF, 1.94 MB)	1	2014-04-08
Analog Signal Chain Product Guide (PDF, 1.10 MB)	1	2014-04-08

Design Guides