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超低功耗、漏极开路输出、单/双电源比较器

产品详情

主要特征

Parametric specs for Comparators + Reference
tPD (µs) (typ) 12
VOS (mV) (max) 10
VSUPPLY (V) (min) 2.5
VSUPPLY (V) (max) 11
# Comparators 2
Thresh. (V) 1.182
Oper. Temp. (°C) -40 to +85
0 to +70
Package/Pins SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
2.75
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参量

Parametric specs for Comparators + Reference
tPD (µs) (typ) 12
VOS (mV) (max) 10
VSUPPLY (V) (min) 2.5
VSUPPLY (V) (max) 11
# Comparators 2
Thresh. (V) 1.182
Oper. Temp. (°C) -40 to +85
0 to +70
Package/Pins SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
2.75

主要特征

  • 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)

应用/用途

  • 电池供电系统
  • 电平转换器
  • 振荡器电路
  • 门限检测器
  • 窗比较器

描述

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).

简化框图

MAX971、MAX972、MAX973、MAX974、MAX981、MAX982、MAX983、MAX984:典型工作电路 MAX971、MAX972、MAX973、MAX974、MAX981、MAX982、MAX983、MAX984:典型工作电路 Zoom icon

Technical Docs

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