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MAX971, MAX972, MAX973, MAX974, MAX981, MAX982, MAX983, MAX984

Ultra-Low-Power, Open-Drain, Single/Dual-Supply Comparators

 Overview   Design Resources   Ordering Info   Related Products   All   

Status Explanations for product status codes

Part Number Status
MAX971 Active: In Production. But some versions of the family are Not Recommended for New Designs. See Ordering Information.
MAX972 Active: In Production. But some versions of the family are Not Recommended for New Designs. See Ordering Information.
MAX973 Active: In Production. But some versions of the family are Not Recommended for New Designs. See Ordering Information.
MAX974 Active: In Production.
MAX981 Active: In Production.
MAX982 Active: In Production.
MAX983 Active: In Production.
MAX984 Active: In Production.

Description

The MAX971–MAX974 and MAX981–MAX984 single/dual/quad low-voltage comparators feature the lowest power consumption available. These micropower devices draw less than 4µA supply current over temperature (MAX971/MAX972/MAX981/MAX982), and include an internal 1.182V ±1% (MAX971/MAX973/ MAX974) or ±2% (MAX981–MAX984) voltage reference and programmable hysteresis.

Ideal for 3V or 5V single-supply applications, these devices operate from a single 2.5V to 11V supply (or ±1.25V to ±5.5V dual supplies), and each comparator's input voltage ranges from the negative supply rail to within 1.3V of the positive supply.

The single MAX971/MAX981 and the dual MAX973/ MAX982/MAX983 provide a unique, simple method for adding hysteresis without feedback or complicated equations, simply by using the HYST pin plus two resistors.

The MAX971–MAX974 and MAX981–MAX984's open-drain outputs permit wire-ORed configurations. Thanks to an 11V output range and separate GND pin for the output transistor (MAX971/MAX974, MAX981/MAX984), these devices are ideal for level translators and bipolar to single-ended converters. For similar devices with complementary output stages, see the MAX921-MAX924 (1% reference) and the MAX931–MAX934 (2% reference).

Data Sheet

Download this datasheet in PDF formatDownload Rev 3 (PDF, 336kB)
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Key Features

  • Available in Ultra-Small Packages:
    • UCSP™ (MAX972)
    • µMAX® (MAX9_1/MAX9_2/MAX9_3)
  • Ultra-Low Quiescent Current (4µA, max) Over Extended Temp Range (MAX971/MAX981)
  • Power Supplies:
    • Single 2.5V to 11V
    • Dual ±1.25V to ±5.5V
  • Input Voltage Range Includes Negative Supply
  • Internal Bandgap Reference
    • 1.182V ±1% (MAX97_)
    • 1.182V ±2% (MAX98_)
  • 12µs Propagation Delay (10mV Overdrive)
  • Output Has Separate GND Pin (MAX9_1/MAX9_4)
 

Applications/Uses

  • Battery-Powered Systems
  • Level Translators
  • Oscillator Circuits
  • Threshold Detectors
  • Window Comparators
   

Key Specifications:

Comparators
Part Number Comp-
arators
tPD
(ns)
Input Range VSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Comp.
(µA)
VOS
(mV)
Logic Out Oper. Temp.
(°C)
Budgetary
Price
typ min max max max See Notes
MAX972  2 12000 to Neg. Rail 2.5 11 1.6 10 Open Drain
-40 to +85
0 to +70
$1.14 @1k
See All Comparators (84)

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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


Comparators + Reference
Part Number Comp-
arators
Thresh.
(V)
Internal Ref. Accuracy
(%)
tPD
(µs)
VSUPPLY
(V)
VSUPPLY
(V)
ICC
(µA)
Prog. Hyst. VOS
(mV)
Logic Out Oper. Temp.
(°C)
Budgetary
Price
typ min max max max See Notes
MAX971  1 1.182 1 12 2.5 11 3.2 Yes 10 Open Drain
-55 to +125
-40 to +85
0 to +70
$2.91 @1k
MAX973  2 1 4.5 Yes
-55 to +125
-40 to +85
0 to +70
$3.00 @1k
MAX974  4 1 6.6 No
-55 to +125
-40 to +85
0 to +70
$1.84 @1k
MAX981  1 2 3.2 Yes
-40 to +85
0 to +70
$2.20 @1k
MAX982  2 2 4.5 Yes
-40 to +85
0 to +70
$2.47 @1k
MAX983  2 2 4.5 Yes
-40 to +85
0 to +70
$2.48 @1k
MAX984  4 2 6.6 No
-40 to +85
0 to +70
$1.84 @1k
See All Comparators + Reference (48)

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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.



Diagram

MAX971, MAX972, MAX973, MAX974, MAX981, MAX982, MAX983, MAX984: Typical Operating Circuit
Typical Operating Circuit

Technical Documents

App Note 484  Harnessing Solar Power with Smart Power-Conversion Techniques
Tutorial 886  Selecting the Right Comparator
App Note 1101  IR Sensor/Monitor Wakes Host System
App Note 4543  Precision Circuit Monitors Negative-Supply Thresholds

Product Guides

Amplifiers and Comparators (PDF)
Signal Chain (PDF)
Video (PDF)

Reliability Reports

Reliability Report: MAX971.pdf MAX972.pdf MAX973.pdf MAX981.pdf MAX982.pdf MAX984.pdf
Show FIT data for:
Request Reliability Report for:

Ordering Information

Filters: Part Number Package: Temperature: Tape and Reel Sample
Devices: 1-50 / 127 <-- Previous  1 2 3   Next -->
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX971C/D    
NRND DICE SALES;NA pin;DICE;
See data sheet
MAX971CPA    
Active PDIP(N);8 pin;79.7 mm²
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX971CPA+  
Active PDIP(N);8 pin;79.7 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX971CSA    
Active SOIC(N);8 pin;30.9 mm²
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX971CSA+  
Active SOIC(N);8 pin;30.9 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX971CSA+T    
Active SOIC(N);8 pin;30.9 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX971CSA-T    
Active N.SO;8 pin
0°C to +70°C See data sheet
MAX971CUA    
Active µMAX;8 pin;15.6 mm²
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX971CUA+  
Active µMAX;8 pin;15.6 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX971CUA+T    
Active µMAX;8 pin;15.6 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX971CUA-T    
Active µMAX;8 pin;15.6 mm²
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX971EPA    
Active PDIP(N);8 pin;79.7 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX971EPA+  
Active PDIP(N);8 pin;79.7 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX971ESA    
Active SOIC(N);8 pin;30.9 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX971ESA+  
Active SOIC(N);8 pin;30.9 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX971ESA+T    
Active SOIC(N);8 pin;30.9 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX971ESA-T    
Active SOIC(N);8 pin;30.9 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX971MJA    
Active CDIP(N);8 pin;82.6 mm²
-55°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX972C/D    
NRND DICE SALES;NA pin;DICE;
See data sheet
MAX972CPA    
Active PDIP(N);8 pin;79.7 mm²
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX972CPA+  
Active PDIP(N);8 pin;79.7 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX972CSA    
Active SOIC(N);8 pin;30.9 mm²
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX972CSA+  
Active SOIC(N);8 pin;30.9 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX972CSA+T    
Active SOIC(N);8 pin;30.9 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX972CSA-T    
Active N.SO;8 pin
0°C to +70°C See data sheet
MAX972CUA    
Active µMAX;8 pin;15.6 mm²
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX972CUA+  
Active µMAX;8 pin;15.6 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX972CUA+T    
Active µMAX;8 pin;15.6 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX972CUA-T    
Active µMAX;8 pin;15.6 mm²
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX972EBL+T    
Active UCSP;9 pin;2.7 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX972EPA    
Active PDIP(N);8 pin;79.7 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX972EPA+  
Active PDIP(N);8 pin;79.7 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX972ESA    
Active SOIC(N);8 pin;30.9 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX972ESA+  
Active SOIC(N);8 pin;30.9 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX972ESA+T    
Active SOIC(N);8 pin;30.9 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX972ESA-T    
Active N.SO;8 pin
-40°C to +85°C See data sheet
MAX972MJA    
Active CDIP(N);8 pin;82.6 mm²
-55°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX973C/D    
NRND DICE SALES;NA pin;DICE;
See data sheet
MAX973CPA    
Active PDIP(N);8 pin;79.7 mm²
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX973CPA+  
Active PDIP(N);8 pin;79.7 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX973CSA    
Active SOIC(N);8 pin;30.9 mm²
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX973CSA+  
Active SOIC(N);8 pin;30.9 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX973CSA+T    
Active SOIC(N);8 pin;30.9 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX973CSA-T    
Active N.SO;8 pin
0°C to +70°C See data sheet
MAX973CUA    
Active µMAX;8 pin;15.6 mm²
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX973CUA+  
Active µMAX;8 pin;15.6 mm²
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX973CUA+T    
Active uMAX;8 pin
0°C to +70°C See data sheet
MAX973CUA-T    
Active uMAX;8 pin
0°C to +70°C See data sheet
MAX973EPA    
Active PDIP(N);8 pin;79.7 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX973EPA+  
Active PDIP(N);8 pin;79.7 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
Devices: 1-50 / 127 <-- Previous  1 2 3   Next -->

Notes:
  1. Other options and links for purchasing parts are listed at: http://www.maximintegrated.com/sales.
  2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
  3. 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.
  4. * 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

Micropower comparator + 1% reference and hysteresis, single supply capability, CMVR extends to GND (MAX971)
Dual, single-supply micropower comparator (MAX972)
Dual, single-supply comparator with 1% voltage reference (MAX973)
Quad, micropower comparator with 1% voltage reference (MAX974)
Low-cost comparator + 2% reference and hysteresis, single supply, CMVR extends to GND (MAX981)
Dual, low-cost, single-supply comparator + 2% reference and hysteresis (MAX982)
Dual, low-cost, single-supply comparator + 2% reference and hysteresis (window comparator input configuration)
(MAX983)
Quad, low-cost comparator + 2%-accurate reference, single/dual supply (MAX984)

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More Information

Topmark Coding MAX972

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Information Index

Document Ref.: 19-0450 Rev 3; 2003-03-10
This page last modified: 2007-05-30