ADCMP341:Dual 0.275% Comparator and Reference with Programmable Hysteresis

ADCMP341: Dual 0.275% Comparator and Reference with Programmable Hysteresis

ADCMP341 功能框图 The ADCMP341/ADCMP343 consist of two low power, high accuracy comparators with a 400 mV reference in an 8-lead SOT-23 package. Operating within a supply range of 1.7 V to 5.5 V, the devices only draw 6.5 μA (typical), making them ideal for low voltage system monitoring and portable applications.

Hysteresis is determined using three resistors in a string configuration with the upper and lower tap points connected to the ±INA_U and ±INA_L pins of each comparator, respectively. The state of the outputs of the comparators selects which pin is internally connected to the comparators input. Therefore, a change of state in the comparators output results in one of the inputs being switched in to the comparator and the other being switched out. This provides the user with a fully flexible and accurate method of setting the hysteresis. One input of each comparator is internally connected to the reference. The other input is available externally, via an internal mux, through pins ±INA_U or ±INA_L. The state of the output determines which of these pins is connected at any one time.

The comparator outputs are open-drain with the output stage sinking capability guaranteed greater than 5 mA over temperature. The ADCMP341 has noninverting inputs and the ADCMP343 has inverting inputs. The devices are suitable for portable, commercial, industrial, and automotive applications.

技术指标

# Per Pkg: 2
Internal Reference: Yes
Reference Accuracy (+/-%): 0.275%
Voltage Supply (V): 1.7 to 5.5
Supply Current : 9µA
Input Range (V): 0 to Vcc
Prop Delay (ns)typ: 10000ns
Adjustable Hysteresis: Adjustable

技术特性

400 mV ± 0.275% threshold
User programmable hysteresis via resistor string
Supply range: 1.7 V to 5.5 V
Low quiescent current: 6.5 μA typical
Input range includes ground
Low input bias current: ±5 nA maximum
Open-drain outputs
Supports wired-AND connections
Input polarities:
ADCMP341 noninverting
ADCMP343 inverting
Small SOT-23 package

订购指南

产品型号	封装	引脚	温度范围	包装和数量	报价*(100-499)	报价*1000 pcs	RoHS
ADCMP341YRJZ-REEL7 产品状态: 量产	8 ld SOT-23	8	商业	Reel, 3000	-	$ 0.91	Y 材料信息