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MAX908CPD+ MAX908CPD+ 54612 Analog Devices Inc./Maxim Integrated IC COMPARATOR 4 GEN PUR 14DIP 14-DIP (0.300", 7.62mm)
MAX907CPA+ MAX907CPA+ 9711 Analog Devices Inc./Maxim Integrated IC COMPARATOR 2 GEN PUR 8DIP 8-DIP (0.300", 7.62mm)
MAX9691ESA+ MAX9691ESA+ 6416 Analog Devices Inc./Maxim Integrated IC COMPARATOR 1 W/LATCH 8SOIC 8-SOIC (0.154", 3.90mm Width)
MAX9141ESA+ MAX9141ESA+ 23192 Analog Devices Inc./Maxim Integrated IC COMPARATOR 1 W/LATCH 8SOIC 8-SOIC (0.154", 3.90mm Width)
MAX941EPA+ MAX941EPA+ 18416 Analog Devices Inc./Maxim Integrated IC COMPARATOR 1 W/LATCH 8DIP 8-DIP (0.300", 7.62mm)
MAX9043BEUB+ MAX9043BEUB+ 10399 Analog Devices Inc./Maxim Integrated IC COMPARATR 2 W/VOLT REF 10UMAX 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
LM319AM LM319AM 29533 Texas Instruments IC COMPARATOR 2 GEN PUR 14SOIC 14-SOIC (0.154", 3.90mm Width)
LM306P LM306P 15828 Texas Instruments IC COMPARATOR 1 DIFF 8DIP 8-DIP (0.300", 7.62mm)
MAX974ESE+ MAX974ESE+ 33402 Analog Devices Inc./Maxim Integrated IC COMPARATR 4 W/VOLT REF 16SOIC 16-SOIC (0.154", 3.90mm Width)
MAX923CUA+ MAX923CUA+ 50700 Analog Devices Inc./Maxim Integrated IC COMPARATOR 2 W/VOLT REF 8UMAX 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
TLV3701ID TLV3701ID 7964 Texas Instruments IC COMPARATOR 1 GEN PUR 8SOIC 8-SOIC (0.154", 3.90mm Width)
MAX971ESA+ MAX971ESA+ 34990 Analog Devices Inc./Maxim Integrated IC COMPARATOR 1 W/VOLT REF 8SOIC 8-SOIC (0.154", 3.90mm Width)
LM119H/NOPB LM119H/NOPB 26332 Texas Instruments IC COMPARATOR 2 GEN PUR TO100-10 TO-100-10 Metal Can
MAX933CSA+ MAX933CSA+ 24070 Analog Devices Inc./Maxim Integrated IC COMPARATOR 2 W/VOLT REF 8SOIC 8-SOIC (0.154", 3.90mm Width)
MAX9022ASA+ MAX9022ASA+ 53851 Analog Devices Inc./Maxim Integrated IC COMPARATOR 2 GEN PUR 8SOIC 8-SOIC (0.154", 3.90mm Width)
MAX992EUA+ MAX992EUA+ 21208 Analog Devices Inc./Maxim Integrated IC COMPARATOR 2 GEN PUR 8UMAX 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
TLC3702MD TLC3702MD 34195 Texas Instruments IC COMPARATOR 2 GEN PUR 8SOIC 8-SOIC (0.154", 3.90mm Width)
LT1017CSW#PBF LT1017CSW#PBF 21214 Analog Devices Inc. IC COMPARATOR 2 GEN PUR 16SO 16-SOIC (0.295", 7.50mm Width)
TLV3701IP TLV3701IP 41596 Texas Instruments IC COMPARATOR 1 GEN PUR 8DIP 8-DIP (0.300", 7.62mm)
TLV3691IDPFT TLV3691IDPFT 58789 Texas Instruments IC COMPARATOR 1 GEN PUR 6X2SON 6-XFDFN

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.