MAX944：高速、低功耗、3V/5V、满摆幅、单电源比较器

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.

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)

MAX941、MAX942、MAX944：引脚配置

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

数据手册DataSheet

语言	下载文件	备注
英文	MAX941-MAX944.pdf	Rev 10; 10/2014

关键参数

Part Number	Comp- arators	t_PD (ns)	Input Range	V_SUPPLY (Total) (V)	V_SUPPLY (Total) (V)	I_CC per Comp. (µA)	V_OS (mV)	V_OS (mV)	Logic Out	Oper. Temp. (°C)	Package/Pins	Budgetary Price
Part Number	Comp- arators	typ	Input Range	min	max	max	typ	max	Logic Out	Oper. Temp. (°C)	Package/Pins	See Notes
MAX941	1	80	Rail to Rail to Neg. Rail	2.7	5.5	600	1	4	Push-Pull	-55 to +125 -40 to +85 0 to +70	µMAX/8 CDIP(N)/8 PDIP(N)/8 SOIC(N)/8	$1.99 @1k
MAX942	2					500					µMAX/8 PDIP(N)/8 SOIC(N)/8	$2.54 @1k
MAX944	4					500					CDIP(N)/14 PDIP(N)/14 SOIC(N)/14	$3.49 @1k

订购型号

型号	状况	推荐替代产品	封装	温度	RoHS/无铅
MAX944CPD	停止供货	MAX944CPD+	PDIP(N),；14引脚；160.5mm²	0°C至+70°C	RoHS/无铅：否
MAX944CPD+	生产中		PDIP(N),；14引脚；160.5mm²	0°C至+70°C	RoHS/无铅：无铅
MAX944CSD	停止供货	MAX944CSD+	SOIC(N),；14引脚；54.2mm²	0°C至+70°C	RoHS/无铅：否
MAX944CSD+	生产中		SOIC(N),；14引脚；54.2mm²	0°C至+70°C	RoHS/无铅：无铅
MAX944CSD+T	生产中		SOIC(N),；14引脚；54.2mm²	0°C至+70°C	RoHS/无铅：无铅
MAX944CSD-T	停止供货	MAX944CSD+T	N.SO；14引脚	0°C至+70°C	参考数据资料
MAX944EPD	停止供货	MAX944EPD+	PDIP(N),；14引脚；160.5mm²	-40°C至+85°C	RoHS/无铅：否
MAX944EPD+	生产中		PDIP(N),；14引脚；160.5mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX944ESD	停止供货	MAX944ESD+	SOIC(N),；14引脚；54.2mm²	-40°C至+85°C	RoHS/无铅：否
MAX944ESD+	生产中		SOIC(N),；14引脚；54.2mm²	-40°C至+85°C	RoHS/无铅：无铅
型号	状况	推荐替代产品	封装：类型引脚占位面积封装图编码/变更 *	温度	RoHS/无铅？
MAX944ESD+T	生产中		SOIC(N),；14引脚；54.2mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX944ESD-T	停止供货	MAX944ESD+T	N.SO；14引脚	-40°C至+85°C	参考数据资料
MAX944MJD	停止供货		CDIP(N),；14引脚；162.1mm²	-55°C至+125°C	RoHS/无铅：否

MAX941-MAX944.pdf MAX944