Maxim > Products > Amplifiers and Comparators > MAX976, MAX978, MAX998

MAX976, MAX978, MAX998

Single/Dual/Quad, SOT23, Single-Supply, High-Speed, Low-Power Comparators

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX976/MAX978/MAX998 dual/quad/single, high-speed, low-power comparators are optimized for +3V/+5V single-supply applications. They achieve a 20ns propagation delay while consuming only 225µA supply current per comparator. The MAX998 features a low-power shutdown mode that places the output in a high-impedance state and reduces supply current to 1nA.

The MAX976/MAX978/MAX998 inputs have a common-mode voltage range that extends 200mV below ground. Their outputs are capable of rail-to-rail operation without external pullup circuitry, making these devices ideal for interface with CMOS/TTL logic. All inputs and outputs can tolerate a continuous short-circuit fault condition to either rail. The comparators' internal hysteresis ensures clean output switching, even with slow-moving input signals.

For space-critical applications, the single MAX998 is available in a 6-pin SOT23 package, the dual MAX976 is available in an 8-pin µMAX® package, and the quad MAX978 is available in a 16-pin QSOP package.

Data Sheet

Download	Rev 3	(PDF, 228kB)
E-Mail

Key Features

Single-Supply Operation Down to 2.7V
20ns Propagation Delay
225µA Supply Current
1nA Shutdown Supply Current
Rail-to-Rail Outputs
Ground-Sensing Inputs
Internal Hysteresis Ensures Clean Switching
Available in Space-Saving Packages
- SOT23 (MAX998)
- µMAX (MAX976)
- QSOP (MAX978)

Applications/Uses

3V Systems
Battery-Powered Applications
Digital-Line Receivers
IR Receivers
Threshold Detectors/Discriminators

Key Specifications:

Comparators

Part Number

Comp-
arators

t_PD
(ns)

Input Range

V_SUPPLY (Total)
(V)

I_CC per Comp.
(µA)

V_OS
(mV)

Logic Out

Oper. Temp.
(°C)

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

typ

min

max

typ

max

max w/pins

See Notes

MAX976

to Neg. Rail

2.7

5.5

650

0.2

Push-Pull

-40 to +85

16.2

MAX978

MAX998

See All Comparators (80)

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

Tutorial 886		Selecting the Right Comparator
Application Note 1792		Self-Oscillating Contactor Driver Minimizes Hold Power

Product Guides

Amplifiers and Comparators (PDF)

Video (PDF)

Reliability Reports

Reliability Report:	MAX976.pdf MAX978.pdf MAX998.pdf
Show FIT data for:

Software/Models

MAX976 Macromodel

MAX976PD Test Circuit File

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX976ESA			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
MAX976ESA+			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
MAX976ESA+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
MAX976ESA-T			Active	N.SO;8 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX976EUA			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
MAX976EUA+			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
MAX976EUA+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
MAX976EUA-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
MAX978EEE			Active	QSOP;16 pin;30.9 mm² Outline Drawing:21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16M-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX978EEE+			Active	QSOP;16 pin;30.9 mm² Outline Drawing:21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16M+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX978EEE+T			Active	QSOP;16 pin;30.9 mm² Outline Drawing:21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16M+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX978EEE-T			Active	QSOP;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX978ESE			Active	SOIC(N);16 pin;62 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16M-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX978ESE+			Active	SOIC(N);16 pin;62 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16M+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX978ESE+T			Active	SOIC(N);16 pin;62 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16M+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX978ESE-T			Active	N.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX998ESA			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
MAX998ESA+			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
MAX998ESA+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
MAX998ESA-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	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX998EUT+T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX998EUT-T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6-2*	-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

Dual, ground sensing, rail-to-rail output (MAX976)
Quad, ground sensing, rail-to-rail output (MAX978)
Single, ground sensing, rail-to-rail output, with shutdown (MAX998)

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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.: 19-1299 Rev 3; 2009-03-25
This page last modified: 2009-03-25