MAX941

高速、低功耗、3V/5V、满摆幅、单电源比较器


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说明

The MAX941/MAX942/MAX944 are single/dual/quad high-speed comparators optimized for systems powered from a 3V or 5V supply. These devices combine high speed, low power, and rail-to-rail inputs. Propagation delay is 80ns, while supply current is only 350µA per comparator.

The input common-mode range of the MAX941/MAX942/MAX944 extends beyond both power-supply rails. The outputs pull to within 0.4V of either supply rail without external pullup circuitry, making these devices ideal for interface with both CMOS and TTL logic. All input and output pins can tolerate a continuous short-circuit fault condition to either rail.

Internal hysteresis ensures clean output switching, even with slow-moving input signals. The MAX941 features latch enable and device shutdown.

The single MAX941 and dual MAX942 are offered in a tiny µMAX® package. Both the single and dual MAX942 are available in 8-pin DIP and SO packages. The quad MAX944 comes in 14-pin DIP and narrow SO packages.
MAX941、MAX942、MAX944:引脚配置 MAX941、MAX942、MAX944:引脚配置 放大+

关键特性

  • Available in µMAX Package
  • Optimized for 3V and 5V Applications (Operation Down to 2.7V)
  • Fast, 80ns Propagation Delay (5mV Overdrive)
  • Rail-to-Rail Input Voltage Range
  • Low 350µA Supply Current per Comparator
  • Low, 1mV Offset Voltage
  • Internal Hysteresis for Clean Switching
  • Outputs Swing 200mV of Power Rails
  • CMOS/TTL-Compatible Outputs
  • Output Latch (MAX941 Only)
  • Shutdown Function (MAX941 Only)

应用

  • 3V/5V系统
  • 电池供电系统
  • 线接收器
  • 采样电路
  • 门限检测器/鉴别器
  • 过零检测器
Part NumberComp-
arators
tPD
(ns)
Input RangeVSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Comp.
(µA)
VOS
(mV)
VOS
(mV)
Logic OutOper. Temp.
(°C)
Package/PinsBudgetary
Price
typminmaxmaxtypmaxSee Notes
MAX941 180
Rail to Rail
to Neg. Rail
2.75.560014Push-Pull
-55 to +125
-40 to +85
0 to +70
PDIP/8
SOIC (N)/8
UMAX/8
$1.99 @1k
MAX942 2500
PDIP/8
SOIC (N)/8
UMAX/8
$2.54 @1k
MAX944 4500
PDIP/14
SOIC (N)/14
$3.49 @1k
查看所有Comparators (95)
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。

技术资料

应用笔记 647 利用比较器/DAC组合解决数据采集问题

质量和环境数据

申请可靠性报告: MAX941 
无铅封装的锡(Sn)晶须报告

CAD Symbols and Footprints

  • MAX941CPA+
  • MAX941CSA+
  • MAX941CSA+T
  • MAX941EPA+
  • MAX941ESA+
  • MAX941ESA+T
  • MAX941EUA
  • MAX941EUA+
  • MAX941EUA+T
  • MAX941MJA
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    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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    类型 编号 PDF 标题
    应用笔记 647 利用比较器/DAC组合解决数据采集问题