Maxim > Products > Amplifiers and Comparators > MAX492, MAX494, MAX495

MAX492, MAX494, MAX495

Single/Dual/Quad, Micropower, Single-Supply, Rail-to-Rail Op Amps

Overview

Technical Documents

Ordering Info

Status

Part Number	Status
MAX492	Active: In Production.
MAX494	Active: In Production.
MAX495	This product is No Longer Available. See Ordering Information for recommended replacements.

Description

The dual MAX492, quad MAX494, and single MAX495 operational amplifiers combine excellent DC accuracy with rail-to-rail operation at the input and output. Since the common-mode voltage extends from V_CC to V_EE, the devices can operate from either a single supply (+2.7V to +6V) or split supplies (±1.35V to ±3V). Each op amp requires less than 150µA supply current. Even with this low current, the op amps are capable of driving a 1kΩ load, and the input referred voltage noise is only 25nV/√Hz. In addition, these op amps can drive loads in excess of 1nF.

The precision performance of the MAX492/MAX494/MAX495, combined with their wide input and output dynamic range, low-voltage single-supply operation, and very low supply current, makes them an ideal choice for battery-operated equipment and other low-voltage applications. The MAX492/MAX494/MAX495 are available in DIP and SO packages in the industry-standard op-amp pin configurations. The MAX495 is also available in the smallest 8-pin SO: the µMAX® package.

Data Sheet

Download	Rev 2	(PDF, 248kB)
E-Mail

Key Features

Low-Voltage Single-Supply Operation (+2.7V to +6V)
Rail-to-Rail Input Common-Mode Voltage Range
Rail-to-Rail Output Swing
500kHz Gain-Bandwidth Product
Unity-Gain Stable
150µA Max Quiescent Current per Op Amp
No Phase Reversal for Overdriven Inputs
200µV Offset Voltage
High Voltage Gain (108dB)
High CMRR (90dB) and PSRR (110dB)
Drives 1kΩ Load
Drives Large Capacitive Loads
MAX495 Available in µMAX Package-8-Pin SO
Dual, precision, rail-to-rail input and output (MAX492)
Quad, precision, rail-to-rail input and output (MAX494)
Single, precision, rail-to-rail input and output (MAX495)

Applications/Uses

Battery-Powered Applications
Data Acquisition
Low-Voltage Applications
Portable Equipment
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

MAX492

Input/Output

2.7

150

170

500

110

0.5

0.2

0.1

MAX494

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

Pin Configuration

MAX494: Pin Configuration

Pin Configuration

Application Notes

Tutorial 741		Rail-to-Rail Outputs and Beyond-the-Rails Inputs: The Inside Story on Micropower Op Amps
Application Note 3536		Moving-Coil Meter Measures Low-Level Currents

Product Guides

Amplifiers and Comparators (PDF)

Video (PDF)

Reliability Reports

Reliability Report:	MAX492.pdf MAX495.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

MAX492 Macromodel

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
MAX492C/D			Active		DICE SALES;NA pin;DICE; Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX492CPA			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX492CPA+			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX492CSA			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-4*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX492CSA+			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+4*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX492CSA+T			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+4*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX492CSA-T			Active		N.SO;8 pin Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX492EPA			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX492EPA+			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX492ESA			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-4*	-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
MAX492ESA+			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX492ESA+T			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX492ESA-T			Active		SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX492MJA			Active		CDIP(N);8 pin;82.6 mm² Outline Drawing:21-0045 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: J8-2*	-55°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX494CPD			Active		PDIP(N);14 pin;158.4 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P14-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX494CPD+			Active		PDIP(N);14 pin;158.4 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P14+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX494CSD			Active		SOIC(N);14 pin;54.2 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0112 (PDF) Use pkgcode/variation: S14-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX494CSD+			Active		SOIC(N);14 pin;54.2 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0112 (PDF) Use pkgcode/variation: S14+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX494CSD+T			Active		SOIC(N);14 pin;54.2 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0112 (PDF) Use pkgcode/variation: S14+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX494CSD-T			Active		SOIC(N);14 pin;54.2 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0112 (PDF) Use pkgcode/variation: S14-1*	0°C to +70°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
MAX494EPD			Active		PDIP(N);14 pin;158.4 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P14-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX494EPD+			Active		PDIP(N);14 pin;158.4 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P14+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX494ESD			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
MAX494ESD+			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
MAX494ESD+T			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
MAX494ESD-T			Active		N.SO;14 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX494MJD			Active		CDIP;14 pin Land Pattern: Not Available	-55°C to +125°C	See data sheet
MAX495C/D		N/A	No Longer Available		DICE; Land Pattern: Not Available		See data sheet
MAX495CPA		N/A	No Longer Available		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX495CPA+		N/A	No Longer Available		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+1*	0°C to +70°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
MAX495CSA		N/A	No Longer Available	MAX4091ASA+	SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX495CSA+		N/A	No Longer Available	MAX4091ASA+	SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX495CSA+T		N/A	No Longer Available	MAX4091ASA+	SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX495CSA-T		N/A	No Longer Available	MAX4091ASA+	SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX495CUA		N/A	No Longer Available	MAX4091AUA+	µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX495CUA+		N/A	No Longer Available	MAX4091AUA+	µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX495CUA+T		N/A	No Longer Available	MAX4091AUA+	uMAX;8 pin Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX495CUA-T		N/A	No Longer Available	MAX4091AUA+	µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX495EPA		N/A	No Longer Available		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX495EPA+		N/A	No Longer Available		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+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
MAX495ESA		N/A	No Longer Available	MAX4091ASA+	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
MAX495ESA+		N/A	No Longer Available	MAX4091ASA+	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
MAX495ESA+T		N/A	No Longer Available	MAX4091ASA+	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
MAX495ESA-T		N/A	No Longer Available	MAX4091ASA+	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
MAX495MJA		N/A	No Longer Available		CDIP(N);8 pin;82.6 mm² Outline Drawing:21-0045 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: J8-2*	-55°C to +125°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.

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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.: 19-0265 Rev 2; 1996-09-01
This page last modified: 2009-11-10