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Mfr.Part #
In Stock
Manufacturer
Description
Package
TLC372MUB TLC372MUB 11654 Texas Instruments TLC372M LOW-POWER LINCMOS DUAL C Bulk
NTE834 NTE834 29838 NTE Electronics, Inc IC COMPARATOR 4 GEN PUR 14DIP 14-DIP (0.300", 7.62mm)
LT111AH LT111AH 3481 Analog Devices Inc. IC VOLTAGE COMPARATOR TO-5 Bulk
AZV3002RL-7 AZV3002RL-7 5110 Diodes Incorporated IC COMPAR 2 GEN PUR U-FLGA1616-8 8-UFLGA
MAX913MJA MAX913MJA 19730 Analog Devices Inc./Maxim Integrated IC COMPARATOR 1 W/LATCH 8CERDIP 8-CDIP (0.300", 7.62mm)
MAX9042AESA+ MAX9042AESA+ 41442 Analog Devices Inc./Maxim Integrated IC COMPARATOR DUAL 8-SOIC Tube
LM393N LM393N 51217 onsemi IC COMPARATOR 2 DIFF 8DIP 8-DIP (0.300", 7.62mm)
LTC6702HTS8#TRM LTC6702HTS8#TRM 33220 Analog Devices Inc. IC COMP LOW VOLT TSOT23-8 Tape & Reel (TR)
AD8564AR AD8564AR 59030 Analog Devices Inc. IC COMPARATOR 4 GEN PUR 16SOIC 16-SOIC (0.154", 3.90mm Width)
AD96687BQ AD96687BQ 47333 Analog Devices Inc. IC COMPARATOR 2 W/LATCH 16CERDIP 16-CDIP (0.300", 7.62mm)
LM239N LM239N 26214 onsemi IC COMP QUAD SGL SUPPLY 14DIP Tube
BA10393N BA10393N 36206 Rohm Semiconductor IC COMPARATOR 2 GEN PUR 8SIP 8-SIP
LM393NG LM393NG 11120 onsemi IC COMPARATOR 2 GEN PUR 8DIP 8-DIP (0.300", 7.62mm)
ADCMP553BRM ADCMP553BRM 16576 Analog Devices Inc. IC COMPARATOR PECL/LVPECL 8MSOP Tube
NTE943M NTE943M 22538 NTE Electronics, Inc IC COMPARATR 2 GEN PUR 8MINI DIP 8-DIP (0.300", 7.62mm)
LTC1443IS LTC1443IS 37770 Linear Technology IC COMPARATOR 4 W/VOLT REF 16SO 16-SOIC (0.154", 3.90mm Width)
LM393FVJ-E2 LM393FVJ-E2 24155 Rohm Semiconductor IC COMPARATOR 2 GEN PUR 8TSSOP 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
NTE911 NTE911 31636 NTE Electronics, Inc IC COMPARATOR 2 GEN PUR TO100-10 TO-100-10 Metal Can
LMV339DTBR2G LMV339DTBR2G 530 onsemi IC COMPARATOR 4 GEN PUR 14TSSOP 14-TSSOP (0.173", 4.40mm Width)
LMH7324SQ/NOPB LMH7324SQ/NOPB 35763 National Semiconductor IC COMPARATOR 4 GEN PUR 32WQFN 32-WFQFN Exposed Pad

Comparators

1. What are Linear Comparators?

‌Basic Definition‌: A linear comparator is an electronic circuit that compares the magnitude relationship of two analog input signals and outputs a high/low level digital signal as the comparison result. When the input signal exceeds the preset threshold, the output is high level, otherwise the output is low level.

‌The Meaning of “Linear”: refers to the response stage before the input signal reaches the threshold, there is a linear relationship between the output and the input; but the overall function is still to trigger the state jump through the threshold, rather than continuously amplifying the signal.

 

2. What are the Key Characteristics of Linear Comparators?

‌Response Characteristics‌: The linear response to the input signal is limited to a specific range near the threshold, and it is essentially still a discontinuous switching device.

‌Difference from Hysteresis Comparator‌: Hysteresis comparators (such as Schmitt triggers) form a hysteresis loop through positive feedback to resist interference, while linear comparators do not have this feature, and the output may be falsely triggered due to noise.

‌Basis for Component Classification‌: Although it is called “linear”, its working mode involves state mutations and belongs to the category of nonlinear components; the “linear” in the name only describes the local characteristics before the threshold.

 

3. What are Linear Comparators Used for?

‌Signal Interface Conversion‌: used for threshold detection of analog signals in analog-to-digital converters (ADCs) to achieve the transition from analog to digital signals.

‌Protection and Monitoring Circuit‌: used for voltage monitoring, overvoltage/undervoltage protection systems, and real-time detection of power supply or signal anomalies.

‌Sensor Signal Processing‌: cooperate with sensors (such as photosensors and pressure sensors) to compare signals and trigger subsequent control logic.

 

4. Actual Product Examples for Linear Comparators

Some domestic analog chip manufacturers (such as Linearin) have launched high-performance comparator product lines, covering low power consumption, high precision, and other types, which are used in industrial control, the Internet of Things, and automotive electronics.

 

5. ‌Summary‌

Linear comparators are key threshold judgment devices in analog circuits. Their “linear” characteristics are reflected in the local linear response of the input before the threshold. They are suitable for scenarios that require precise level detection, but attention should be paid to anti-interference design to avoid false triggering.