MAX971

超低功耗、漏极开路输出、单/双电源比较器


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说明

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).
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 放大+

关键特性

  • 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

  • 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

请查看具体的参数规格 Comparators (96)


Part NumberComp-
arators
tPD
(ns)
Input RangeVSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Comp.
(µA)
VOS
(mV)
Logic OutOper. Temp.
(°C)
Package/PinsBudgetary
Price
typminmaxmaxmaxSee Notes
MAX972 212000to Neg. Rail2.5111.610Open Drain
-40 to +85
0 to +70
PDIP/8
SOIC (N)/8
UCSP (B)/9
UMAX/8
$1.76 @1k

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

请查看具体的参数规格 Comparators + Reference (48)


Part NumberComp-
arators
Thresh.
(V)
Internal Ref. Accuracy
(%)
tPD
(µs)
VSUPPLY
(V)
VSUPPLY
(V)
ICC
(µA)
Prog. Hyst.VOS
(mV)
Logic OutOper. Temp.
(°C)
Package/PinsBudgetary
Price
typminmaxmaxmaxSee Notes
MAX971 11.1821122.5113.2Yes10Open Drain
-55 to +125
-40 to +85
0 to +70
PDIP/8
SOIC (N)/8
UMAX/8
$3.06 @1k
MAX973 214.5Yes
-55 to +125
-40 to +85
0 to +70
PDIP/8
SOIC (N)/8
UMAX/8
$3.15 @1k
MAX974 416.6No
-55 to +125
-40 to +85
0 to +70
PDIP/16
SOIC (N)/16
$3.49 @1k
MAX981 123.2Yes
-40 to +85
0 to +70
PDIP/8
SOIC (N)/8
UMAX/8
$2.31 @1k
MAX982 224.5Yes
-40 to +85
0 to +70
PDIP/8
SOIC (N)/8
UMAX/8
$2.59 @1k
MAX983 224.5Yes
-40 to +85
0 to +70
PDIP/8
SOIC (N)/8
UMAX/8
$2.60 @1k
MAX984 426.6No
-40 to +85
0 to +70
PDIP/16
SOIC (N)/16
$2.93 @1k

技术资料

应用笔记 4543 Precision Circuit Monitors Negative-Supply Thresholds
应用笔记 1101 IR Sensor/Monitor Wakes Host System

质量和环境数据

产品可靠性报告: MAX971.pdf 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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