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MAX4122, MAX4123, MAX4124, MAX4125, MAX4126, MAX4127, MAX4128, MAX4129

Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps

Overview

Technical Documents

Ordering Info

Status

Part Number	Status
MAX4122	Active: In Production.
MAX4123	Active: In Production.
MAX4124	Active: In Production.
MAX4125	Active: In Production.
MAX4126	Active: In Production.
MAX4127	Active: In Production.
MAX4128	Active: In Production.
MAX4129	This product is No Longer Available. See Ordering Information for recommended replacements.

Description

The MAX4122–MAX4129 family of operational amplifiers combines wide bandwidth and excellent DC accuracy with rail-to-rail operation at the inputs and outputs. These devices require only 650µA per amplifier, and operate from either a single supply (+2.7V to +6.5V) or dual supplies (±1.35V to ±3.25V) with a common-mode voltage range that extends 250mV beyond V_EE and V_CC. They are capable of driving 250Ω loads. The MAX4122/MAX4123/MAX4126/MAX4127/MAX4129 have a 5MHz gain bandwidth product, while the decompensated MAX4124/MAX4125/MAX4128 (stable at closed-looped gains of 10 or greater) have a 25MHz gain bandwidth product. In addition, the MAX4123/MAX4125/MAX4127 feature a shutdown mode in which the outputs are placed in a high-impedance state and the supply current is reduced to only 25µA per amplifier.

With their rail-to-rail input common-mode range and output swing, these amplifiers are ideal for low-voltage single-supply operation. Although the minimum operating voltage is specified at 2.7V, the devices typically operate down to 1.8V. In addition, low offset voltage and high speed make them the ideal signal-conditioning stages for precision, low-voltage, data-acquisition systems. The MAX4122 and MAX4124 come in the space-saving 5-pin SOT23-5 package.

Data Sheet

Download	Rev 1	(PDF, 296kB)
E-Mail

Key Features

5-Pin SOT23 Package (MAX4122/4)
+2.7V to +6.5V Single-Supply Operation
Rail-to-Rail Input Common-Mode Voltage Range
Rail-to-Rail Output Voltage Swing
5MHz Gain-Bandwidth Product (MAX4122/3/6/7/9)
25MHz Gain-Bandwidth Product (MAX4124/5/8)
650µA Quiescent Current per Amplifier
25µA Shutdown Function (MAX4123/5/7)
200µV Offset Voltage
No Phase Reversal for Overdriven Inputs
Drive 250Ω Loads
Stable with 500pF Capacitive Loads
Unity-Gain Stable (MAX4122/3/6/7/9)
Stable at Gains > 10V/V (MAX4124/5/8)

Applications/Uses

Automotive Sensors
Base Station/Wireless Infrastructure
Battery-Powered Applications
Computers: Desktops, Workstations, and Servers
Computers: Motherboards
Computers: Notebook
Data Acquisition
Industrial: Process Measurement and Control
Low-Power, Low-Voltage Applications
Panel Meters
Portable Equipment
Programmable Logic Controllers (PLCs)
Signal Conditioning

Key Specifications:

Operational Amplifiers

Part Number

Amps.

Rail to Rail

A_VCL

V_SUPPLY (Total)
(V)

I_CC per Amp.
(µA)

V_OS
(µV)

CMRR @DC
(dB)

PSRR @DC
(dB)

Input I_BIAS
(nA)

Unity Gain BW
(MHz)

Slew Rate
(V/µs)

e_n
(nV/√Hz)

i_n
(pA/√Hz)

Low Pwr. Shutdn

Package/Pins

Budgetary Price

min

max

typ

max

typ

max

typ

See Notes

MAX4122

Input/Output

2.7

6.5

725

825

1500

100

150

0.4

SOT/5

$1.30 @1k

MAX4123

600

µMAX/8

SOIC(N)/8

$1.15 @1k

MAX4124

1500

SOT/5

$1.42 @1k

MAX4125

600

µMAX/8

SOIC(N)/8

$1.15 @1k

MAX4126

750

µMAX/8

SOIC(N)/8

$1.66 @1k

MAX4127

750

SOIC(N)/14

$1.96 @1k

MAX4128

750

µMAX/8

SOIC(N)/8

$1.66 @1k

See All Operational Amplifiers (160)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

Application Notes

Application Note 656		Design Trade-Offs for Single-Supply Op Amps
Reference Design 1117		Small Photodiode Receiver Handles Fiber-Optic Data Rates to 800kbps
Tutorial 1757		HFAN-08.2.1: PWM Temperature Controller for Thermoelectric Modules Keeps Components within 0.1°C
Application Note 1811		Visible-Laser Driver Has Digitally Controlled Power Modulation
Tutorial 1939		Nodal Analysis of Op Amp Circuits
Application Note 3471		High-Speed Random-Data Generator Facilitates Eye Diagrams
Tutorial 4294		Differential Gain and Phase—Why Measure It, if You Cannot See It?
Application Note 4428		Rail-to-Rail: Railroading and the Electronics of Op Amps
Application Note 4508		Precision Current-Sink/Source Circuits Configure as Mirrors or Amplifiers

Product Guides

Amplifiers and Comparators (PDF)

Video (PDF)

Reliability Reports

Reliability Report:	MAX4124.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

MAX4122 Macromodel

MAX4122AVCL Test Circuit File

MAX4122LTRA Test Circuit File

MAX4124 Macromodel

MAX4124 PSPICE Macromodel

MAX4124STRA Test Circuit File

MAX4126VOH Test Circuit File

MAX4128 PSPICE Macromodel

MAX4128VOH Test Circuit File

MAX4129AVCL Test Circuit File

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4122EUK			Active		SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4122EUK+			Active		SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4122EUK+T			Active		SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4122EUK-T			Active		SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4122EUK/GH9-T			Active		SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4123C/D			Active		DICE SALES;NA pin;DICE; Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX4123ESA			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4123ESA+			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4123ESA+T			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4123ESA-T			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4123EUA			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4123EUA+			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4123EUA+T			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4123EUA-T			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4124EUK			Active		SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4124EUK+			Active		SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4124EUK+T			Active		SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4124EUK-T			Active		SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4125ESA			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4125ESA+			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4125ESA+T			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4125ESA-T			Active		N.SO;8 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4125EUA			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4125EUA-T			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4126ESA			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4126ESA+			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4126ESA+T			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4126ESA-T			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4126EUA			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4126EUA+			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4126EUA+T			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4126EUA-T			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4127C/D			Active		DICE SALES;NA pin;DICE; Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX4127ESD			Active		SOIC(N);14 pin;54.2 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0112 (PDF) Use pkgcode/variation: S14-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4127ESD+			Active		SOIC(N);14 pin;54.2 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0112 (PDF) Use pkgcode/variation: S14+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4127ESD+T			Active		N.SO; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4127ESD-T			Active		N.SO;14 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4128ESA			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4128ESA+			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4128ESA+T			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4128ESA-T			Active		N.SO;8 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4128EUA			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4128EUA+			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4128EUA+T			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4128EUA-T			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4129ESD		N/A	No Longer Available	MAX4478ASD+	SOIC(N);14 pin;54.3 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0112 (PDF) Use pkgcode/variation: S14M-6*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4129ESD+		N/A	No Longer Available	MAX4478ASD+	N.SO; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4129ESD+T		N/A	No Longer Available	MAX4478ASD+	N.SO; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4129ESD-T		N/A	No Longer Available	MAX4478ASD+	SOIC(N);14 pin;54.3 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0112 (PDF) Use pkgcode/variation: S14M-6*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Notes and Comments

Single, rail-to rail input/output, unity-gain stable (MAX4122)
Single, rail-to rail input/output, unity-gain stable, has shutdown (MAX4123)
Single, rail-torail input/output, decompensated (MAX4124)
Single, rail-torail input/output, decompensated, has shutdown (MAX4125)
Dual, rail-to-rail input/output, unity-gain stable (MAX4126)
Dual, rail-to-rail input/output, unity-gain stable, has shutdown (MAX4127)
Dual, rail-to-rail input/output, decompensated (MAX4128)
Quad, rail-to-rail input/output, unity-gain stable (MAX4129)

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More Information

Topmark Coding	MAX4122
Topmark Coding	MAX4124

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-1087 Rev 1; 1997-08-01
This page last modified: 2009-07-15

Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps

Status

Description

Data Sheet

Key Features

Applications/Uses

Key Specifications:

Diagram

Application Notes

Product Guides

Reliability Reports

Software/Models

Ordering Information

Notes and Comments

Similar Products by Function

Similar Products by Application

More Information

Didn't Find What You Need?

Information Index

Overview

Technical Documents

Ordering Info

Related Products