Comparators

What is a Comparator?

A Comparator is a circuit which accepts two voltages or currents and then switches the output showing which is bigger. Comparators are found in components like analogue to digital converters. Comparators are like operational amplifiers except a comparator is designed to operate with positive feedback and output saturated at one power rail or the other.

How a Comparator works.
A comparator samples two input pins and turns on the output when identifying a difference or similarity.
An example is when you have a minus voltage on the inverting Pin and a plus non-inverting. When the voltage, on the non-inverting equals the inverting voltage the Pin turns on. Normally the output Pin is open and switches to ground when the comparator is activated.

Why use a Comparator?
The primary use of a comparator is converting analog to digital (ADC). Two supply voltage are applied and the difference determines a high or low digital signal.

Types of Comparator.
Current sense, Differential / Dual differential, Dual / Dual CMOS, Dual voltage / General voltage, General purpose, Ground sense, High speed / high-speed CMOS, Low current CMOS, Low power / low voltage / low-power CMOS, Micro power, Nano power, Precision, Push/pull output, Quad differential, Rail to rail, Voltage, Window.

Mounting Types.
Surface mount
Through hole
Comparator power supply types.
Dual
Single

Various package types, pins, sizes, channels per chip, PSRR (power supply rejection ratio), CMRR (common mode rejection ratio) are all available.

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제품설명 단가 Comparator Type Mounting Type Package Type Power Supply Type Output Type Number of Channels per Chip Typical Response Time Pin Count Typical Single Supply Voltage Dimensions Length Width Height Typical CMRR
RS 제품 번호 805-1365
제조사 부품 번호LM311DR2G
제조사ON Semiconductor
₩409.20
Each (On a Tape of 25)
수량
General Purpose Surface Mount SOIC Dual, Single CMOS 1 200ns 8 36 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS 제품 번호 761-4463
제조사 부품 번호LM393M
제조사ON Semiconductor
₩339.45
Each (In a Pack of 10)
수량
General Purpose Surface Mount SOP Dual, Single TTL 2 1.5µs 8 36 V 4.92 x 3.95 x 1.55mm 4.92mm 3.95mm 1.55mm -
RS 제품 번호 145-4483
제조사 부품 번호LM393MX
제조사ON Semiconductor
₩122.45
Each (On a Reel of 3000)
수량
Differential Surface Mount SOIC Dual, Single Open Collector 2 1.4µs 8 2 → 36 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS 제품 번호 903-4318
제조사 부품 번호LM393MX
제조사ON Semiconductor
₩404.55
Each (In a Pack of 50)
수량
Differential Surface Mount SOIC Dual, Single Open Collector 2 1.4µs 8 2 → 36 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS 제품 번호 145-5224
제조사 부품 번호LM311DR2G
제조사ON Semiconductor
₩195.30
Each (On a Reel of 2500)
수량
General Purpose Surface Mount SOIC Dual, Single CMOS 1 200ns 8 36 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS 제품 번호 166-1847
제조사 부품 번호LM393M
제조사ON Semiconductor
₩168.95
Each (In a Tube of 90)
수량
Differential Surface Mount SOIC Dual, Single Open Collector 2 1.4µs 8 2 → 36 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS 제품 번호 463-666
제조사 부품 번호LM339NG
제조사ON Semiconductor
₩745.55
Each (In a Pack of 20)
수량
General Purpose Through Hole PDIP Dual, Single Open Collector 4 1.3µs 14 5 → 28 V 19.56 x 6.6 x 3.68mm 19.56mm 6.6mm 3.68mm -
RS 제품 번호 178-4707
제조사 부품 번호LM339NG
제조사ON Semiconductor
₩806.00
Each (In a Tube of 25)
수량
General Purpose Through Hole PDIP Dual, Single Open Collector 4 1.3µs 14 5 → 28 V 19.56 x 6.6 x 3.68mm 19.56mm 6.6mm 3.68mm -
RS 제품 번호 787-8481
제조사 부품 번호NCS2220AMUT1G
제조사ON Semiconductor
₩1,453.90
Each (On a Tape of 5)
수량
Low Power Surface Mount UDFN Single Rail to Rail 2 - 8 0.85 → 6 V 1.6 x 1.6 x 0.5mm 1.6mm 1.6mm 0.5mm 70dB
RS 제품 번호 759-9368
제조사 부품 번호LM2901MX
제조사ON Semiconductor
₩429.35
Each (In a Pack of 10)
수량
General Purpose Surface Mount SOP Dual, Single Open Collector 4 0.3 μs, 1.3 μs 14 2 → 36 V 8.76 x 4.2 x 1.65mm 8.76mm 4.2mm 1.65mm -
신제품
RS 제품 번호 185-8101
제조사 부품 번호NCV2252SN2T1G
제조사ON Semiconductor
₩328.60
Each (On a Reel of 3000)
수량
High Speed Surface Mount TSOP Single Rail to Rail 1 - 5 1.8 → 5.5 V 3.15 x 1.65 x 1mm 3.15mm 1.65mm 1mm 81dB
신제품
RS 제품 번호 184-4236
제조사 부품 번호LM293DG
제조사ON Semiconductor
₩235.60
Each (In a Tube of 98)
수량
Dual Voltage Comparator Surface Mount SOIC Dual, Single CMOS, DTL, ECL, MOS, TTL 2 1.3µs 8 2 → 36 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS 제품 번호 145-4757
제조사 부품 번호LM393DMR2G
제조사ON Semiconductor
₩141.05
Each (On a Reel of 4000)
수량
General Purpose Surface Mount MSOP Dual, Single CMOS, DTL, ECL, MOS, TTL 2 1.5µs 8 2 → 36 V dc 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm -
RS 제품 번호 787-8633
제조사 부품 번호LM293DMR2G
제조사ON Semiconductor
₩396.80
Each (In a Pack of 20)
수량
General Purpose Surface Mount MSOP Dual, Single CMOS, DTL, ECL, MOS, TTL 2 1.5µs 8 2 → 36 V dc 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm -
RS 제품 번호 806-2826
제조사 부품 번호LM339AN
제조사ON Semiconductor
₩765.70
Each (In a Tube of 25)
수량
General Purpose Through Hole PDIP Dual, Single Open Collector 4 1.3µs 14 2 → 36 V 19.8 x 6.4 x 3.25mm 19.8mm 6.4mm 3.25mm -
RS 제품 번호 802-4290
제조사 부품 번호NCS2200SN1T1G
제조사ON Semiconductor
₩948.60
Each (In a Pack of 20)
수량
Low Voltage Surface Mount SOT-23 Single Rail to Rail 1 - 5 0.85 → 6 V 3 x 1.5 x 1mm 3mm 1.5mm 1mm 65dB
RS 제품 번호 170-3426
제조사 부품 번호LM293DR2G
제조사ON Semiconductor
₩127.10
Each (On a Reel of 2500)
수량
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS 제품 번호 787-8655
제조사 부품 번호LM393DMR2G
제조사ON Semiconductor
₩379.75
Each (On a Tape of 20)
수량
General Purpose Surface Mount MSOP Dual, Single CMOS, DTL, ECL, MOS, TTL 2 1.5µs 8 2 → 36 V dc 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm -
RS 제품 번호 163-0189
제조사 부품 번호NCS2202AMUTBG
제조사ON Semiconductor
₩207.70
Each (On a Reel of 3000)
수량
Low Voltage Surface Mount UDFN Single Open Drain 1 - 6 0.85 → 6 V 1.2 x 1 x 0.5mm 1.2mm 1mm 0.5mm 80dB
RS 제품 번호 920-9859
제조사 부품 번호NCS2202AMUTBG
제조사ON Semiconductor
₩1,162.50
Each (In a Pack of 5)
수량
Low Voltage Surface Mount UDFN Single Open Drain 1 - 6 0.85 → 6 V 1.2 x 1 x 0.5mm 1.2mm 1mm 0.5mm 80dB