Top

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

Product Details

Key Features

Parametric specs for Comparators + Reference
tPD (µs) (typ) 12
VOS (mV) (max) 10
VSUPPLY (V) (min) 2.5
VSUPPLY (V) (max) 11
# Comparators 4
Thresh. (V) 1.182
Oper. Temp. (°C) -40 to +85
0 to +70
Package/Pins SOIC (N)/16
Budgetary
Price (See Notes)
3.11
View Less

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Parameters

Parametric specs for Comparators + Reference
tPD (µs) (typ) 12
VOS (mV) (max) 10
VSUPPLY (V) (min) 2.5
VSUPPLY (V) (max) 11
# Comparators 4
Thresh. (V) 1.182
Oper. Temp. (°C) -40 to +85
0 to +70
Package/Pins SOIC (N)/16
Budgetary
Price (See Notes)
3.11

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

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).

Simplified Block Diagram

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

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .