MAX4238

PRODUCTION

Ultra-Low Offset/Drift, Low-Noise, Precision SOT23 Amplifiers

Data Sheet (Rev. 10) Product Selection Table

Part Models: 8
1ku List Price: Starting From $1.28

Viewing:

Overview

DC Performance Ideal for High-Precision Sensor Interface
- Ultra-Low, 0.1µV Offset Voltage
  - 2.0µV (max) at +25°C
  - 2.5µV (max) at -40°C to +85°C
  - 3.5µV (max) at -40° to +125°C
- Low 10nV/°C Drift
- Low Noise: 1.5µV_P-P from DC to 10Hz
- 150dB AV_OL, 140dB PSRR, 140dB CMRR
- High Gain-Bandwidth Product
  - 1MHz (MAX4238)
  - 6.5MHz (MAX4239)
- Ground-Sensing Input
- Rail-to-Rail Output (R_L = 1kΩ)
Low Power Consumption Reduces System Power
- Single 2.7V to 5.5V Supply Voltage Range
- 600µA Supply Current
- 0.1µA Shutdown Mode
Low Power Consumption Reduces System Power
AEC-Q100 Qualified, Refer to Ordering Information for the List of /V Parts

The MAX4238/MAX4239 are low-noise, low-drift, ultra-high precision amplifiers that offer near-zero DC offset and drift through the use of autocorrelating zeroing techniques. This method constantly measures and compensates the input offset, eliminating drift over time and temperature and the effect of 1/f noise. Both devices feature rail-to-rail outputs, operate from a single 2.7V to 5.5V supply, and consume only 600µA. An active-low shutdown mode decreases supply current to 0.1µA.

The MAX4238 is unity-gain stable with a gain-bandwidth product of 1MHz, while the decompensated MAX4239 is stable with A_V ≥ 10V/V and a GBWP of 6.5MHz. The MAX4238/MAX4239 are available in 8-pin narrow SO, 6-pin TDFN and SOT23 packages.

Applications

Electronic Scales
Instrumentation Amplifiers
Medical Instrumentation
Strain Gauges
Thermocouples

Part Models: 8
1ku List Price: Starting From $1.28

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX4238ASA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX4238ASA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX4238ATT+	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX4238ATT+T	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX4238AUT+	6-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX4238AUT+T	6-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX4238AUT/V+	6-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX4238AUT/V+T	6-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 22, 2018 - 1702N ASSEMBLY
		pcn_1702n
MAX4238ASA+	PRODUCTION
MAX4238ASA+T	PRODUCTION
Aug 2, 2025 - 2505 PIN/ERRATA
		pcn_2505
MAX4238ATT+	PRODUCTION	pcn_2505
Jun 20, 2016 - 1612 ASSEMBLY
		pcn_1612
MAX4238ATT+	PRODUCTION
MAX4238ATT+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

MAX4238

SPICE Model 1

MAX4238 SPICE Macro Model

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

Evaluation Kit for the MAX4238

Buy Now View Details

Features and Benefits

Accommodates Multiple Op Amp Configurations
Component Pads Allow for Sallen-Key Filter
Accommodates Easy-to-Use Components
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX4238 evaluation kit (EV kit) provides a proven design to evaluate the MAX4238 precision, low-noise, low-drift dual-operational amplifier in an 8-pin µMAX^® package. The EV kit circuit is preconfigured as noninverting amplifiers, but can be adapted to other topologies by changing a few components.

The EV kit comes with a MAX4238AUA+ installed.

Applications