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MAX931ESA 的PDF资料 下载 ,164K

MAX931ESA 的货源和报价 MAX931ESA 的相关技术信息

相关型号

MAX891LEUA MAX907ESA MAX913ESA MAX924ESE

概述

The MAX931–MAX934 single, dual, and quad micropower, low-voltage comparators plus an on-board 2% accurate reference feature the lowest power consumption available. These comparators draw less than 4µA supply current over temperature (MAX931), and include an internal 1.182V ±2% voltage reference, programmable hysteresis, and TTL/CMOS outputs that sink and source current.

Ideal for 3V or 5V single-supply applications, the MAX931–MAX934 operate from a single +2.5V to +11V supply (or a ±1.25V to ±5V dual supply), and each comparator's input voltage range extends from the negative supply rail to within 1.3V of the positive supply.

The MAX931–MAX934's unique output stage continuously sources as much as 40mA. And by eliminating power-supply glitches that commonly occur when comparators change logic states, the MAX931–MAX934 minimize parasitic feedback, making them easier to use.

The single MAX931 and dual MAX932/MAX933 provide a unique and simple method for adding hysteresis without feedback and complicated equations, using the HYST pin and two resistors.

For applications that require increased precision with similar power requirements, see the MAX921–MAX924 data sheet. These devices include a 1% precision reference.

关键特性		应用
Ultra-Low 4µA Max Quiescent Current over Extended Temp. Range (MAX931) Power Supplies: Single +2.5V to +11V Dual ±1.25V to ±5.5V Input Voltage Range Includes Negative Supply Internal 1.182V ±2% Bandgap Reference Adjustable Hysteresis TTL-/CMOS-Compatible Outputs 12µs Propagation Delay (10mV Overdrive) No Switching Crowbar Current 40mA Continuous Source Current Available in Space-Saving µMAX® Package		报警电路 电池供电应用 振荡器电路 门限检测器 窗比较器

应用笔记

App Note 659: New Current-Sense Amplifiers Aid Measurement and Control - MAX932, MAX933 (English only) App Note 731: Overload Circuitry Protects Batteries and Power Supplies - MAX933 (English only) 应用笔记886：比较器的合理选择 - MAX933 应用笔记935：单个IC管理电池备份 - MAX933 应用笔记982：低功耗、32kHz振荡器 - MAX931 App Note 1170: Circuit Connection Adds Current-Mode Operation To PFM Boost Converters - MAX933 (English only) 应用笔记1212：脉冲供电传感器延长电池寿命 - MAX933 App Note 1808: Adjustable LNB Power Supply Is DiSEqC Compatible - MAX931 (English only)

注释

Low-cost comparator + 2% reference and hysteresis, single supply, CMVR extends to GND (MAX931) Dual, low-cost, single-supply comparator + 2% reference and hysteresis (MAX932) Dual, low-cost, single-supply comparator + 2% reference and hysteresis (window comparator input configuration) (MAX933) Quad, low-cost comparator + 2%-accurate reference, single/dual supply (MAX934)

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