Images
Mfr.Part #
In Stock
Manufacturer
Description
Package
MAX9051AEUT+T MAX9051AEUT+T 30040 Analog Devices Inc./Maxim Integrated IC COMPARATOR 1 W/VOLT REF SOT6 SOT-23-6
LM311D LM311D 3431 STMicroelectronics IC COMPARATOR 1 GEN PUR 8SOIC 8-SOIC (0.154", 3.90mm Width)
MAX918ESA+T MAX918ESA+T 35445 Analog Devices Inc./Maxim Integrated IC COMPARATOR 1 W/VOLT REF 8SOIC 8-SOIC (0.154", 3.90mm Width)
LTC6752HS5#TRPBF LTC6752HS5#TRPBF 2045 Analog Devices Inc. IC COMPARATOR 1 GEN PUR TSOT23-5 SOT-23-5 Thin, TSOT-23-5
LMC6772BIM LMC6772BIM 54698 Texas Instruments IC COMPARATOR 2 GEN PUR 8SOIC 8-SOIC (0.154", 3.90mm Width)
MAX975EUA+ MAX975EUA+ 22713 Analog Devices Inc./Maxim Integrated IC COMPARATOR 1 GEN PUR 8UMAX 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
TLV3202AIDGK TLV3202AIDGK 25117 Texas Instruments IC COMPARATOR 2 GEN PUR 8VSSOP 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
LM2901F-E2 LM2901F-E2 45145 Rohm Semiconductor IC COMPARATOR 4 GEN PUR 14SOP 14-SOIC (0.173", 4.40mm Width)
LT6700MPS6-3#TRMPBF LT6700MPS6-3#TRMPBF 38599 Analog Devices Inc. IC COMPARATR 2 W/VOLT REF TSOT23 SOT-23-6 Thin, TSOT-23-6
TLV3701CD TLV3701CD 40184 Texas Instruments IC COMPARATOR 1 GEN PUR 8SOIC 8-SOIC (0.154", 3.90mm Width)
TS3022IYST TS3022IYST 13354 STMicroelectronics IC COMPARATOR 2 GEN PUR 8MINISO 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
TS3021AILT TS3021AILT 18874 STMicroelectronics IC COMPARATOR 1 GEN PUR SOT23-5 SC-74A, SOT-753
TLC3702IPWR TLC3702IPWR 36726 Texas Instruments IC COMPARATOR 2 GEN PUR 8TSSOP 8-TSSOP (0.173", 4.40mm Width)
MCP6544T-E/SL MCP6544T-E/SL 16622 Microchip Technology IC COMPARATOR 4 GEN PUR 14SOIC 14-SOIC (0.154", 3.90mm Width)
MCP6542-I/P MCP6542-I/P 16411 Microchip Technology IC COMPARATOR 2 GEN PUR 8DIP 8-DIP (0.300", 7.62mm)
BU7231SG-TR BU7231SG-TR 45283 Rohm Semiconductor IC COMPARATOR 1 GEN PUR 5SSOP SC-74A, SOT-753
TLV7211AIDCKR TLV7211AIDCKR 39503 Texas Instruments IC COMPARATOR 1 GEN PUR SC70-6 6-TSSOP, SC-88, SOT-363
LTC1443CS#PBF LTC1443CS#PBF 51999 Analog Devices Inc. IC COMPARATOR 4 W/VOLT REF 16SO 16-SOIC (0.154", 3.90mm Width)
ALD2301ASAL ALD2301ASAL 47267 Advanced Linear Devices Inc. IC COMPARATOR 2 GEN PUR 8SOIC 8-SOIC (0.154", 3.90mm Width)
TL331BQDBVRQ1 TL331BQDBVRQ1 56691 Texas Instruments IC COMPARATOR 1 GEN PUR SOT23-5 SC-74A, SOT-753

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.