Comparators

A Comparator is a circuit that accepts two voltages or currents and then switches the output showing which of the two is bigger. Comparators are found in components such as analogue to digital converters (ADCs). Comparators are like operational amplifiers except a comparator is designed specifically 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 either 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 analogue to digital (ADC). Two supply voltages 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
  • Micropower
  • Nano power
  • Precision
  • Push/pull output
  • Quad differential
  • Rail to rail
  • Voltage
  • Window

Mounting Types

Comparators can be found in both surface mount and through-hole mounting configurations to enable use in a wide variety of applications.

Comparator power supply types

Available in both single and dual power supply configurations, a comparator can easily be implemented into a robust solution.

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 165-3326
제조사 부품 번호MCP6541UT-I/LT
제조사Microchip
₩424.70
Each (On a Reel of 3000)
수량
General Purpose Surface Mount SC-70 Single Push-Pull 1 - 5 1.6 → 5.5 V 2.25 x 1.35 x 1mm 2.25mm 1.35mm 1mm 70dB
RS 제품 번호 768-1362
제조사 부품 번호MCP6541UT-I/LT
제조사Microchip
₩528.55
Each (In a Pack of 10)
수량
General Purpose Surface Mount SC-70 Single Push-Pull 1 - 5 1.6 → 5.5 V 2.25 x 1.35 x 1mm 2.25mm 1.35mm 1mm 70dB
RS 제품 번호 536-1388
제조사 부품 번호LM393M/NOPB
₩1,308.20
Each
수량
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm -
RS 제품 번호 121-8871
제조사 부품 번호LM393M/NOPB
₩1,488.00
Each (In a Tube of 95)
수량
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 to 28 V 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm -
RS 제품 번호 168-7454
제조사 부품 번호TS3022IDT
₩1,655.40
Each (On a Reel of 2500)
수량
High Speed Surface Mount SOIC Single Push-Pull 2 0.009µs 8 1.8 → 5 V 5 x 4 x 1.25mm 5mm 4mm 1.25mm 67dB
RS 제품 번호 760-9468
제조사 부품 번호TS3022IDT
₩2,129.70
Each (In a Pack of 5)
수량
High Speed Surface Mount SOIC Single Push-Pull 2 0.009µs 8 1.8 → 5 V 5 x 4 x 1.25mm 5mm 4mm 1.25mm 67dB
RS 제품 번호 528-157
제조사 부품 번호LM311DR
₩451.05
Each (In a Pack of 25)
수량
General Purpose Surface Mount SOIC Dual, Single Open Collector/Emitter 1 0.165µs 8 5 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
RS 제품 번호 920-3475
제조사 부품 번호LM311D
₩658.75
Each (In a Tube of 75)
수량
General Purpose Surface Mount SOIC Dual, Single Open Collector/Emitter 1 0.165µs 8 5 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
RS 제품 번호 517-2396
제조사 부품 번호LM311D
₩658.75
Each (In a Pack of 20)
수량
General Purpose Surface Mount SOIC Dual, Single Open Collector/Emitter 1 0.165µs 8 5 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
RS 제품 번호 121-8421
제조사 부품 번호LM339N
₩478.95
Each (In a Tube of 25)
수량
General Purpose Through Hole PDIP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm -
RS 제품 번호 533-8237
제조사 부품 번호LM339N/NOPB
₩1,908.05
Each
수량
General Purpose Through Hole MDIP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 19.05 x 6.35 x 3.3mm 19.05mm 6.35mm 3.3mm -
RS 제품 번호 124-4526
제조사 부품 번호LM311N/NOPB
₩1,195.05
Each (In a Pack of 10)
수량
Voltage Through Hole PDIP Single Single Ended 1 200ns 8 Maximum of 36 V 10.16 x 6.6 x 4.57mm 10.16mm 6.6mm 4.57mm -
RS 제품 번호 866-0219
제조사 부품 번호LM311N/NOPB
₩1,069.50
Each (In a Tube of 40)
수량
General Purpose Through Hole PDIP Dual, Single DTL, MOS, RTL, TTL 1 200ns 8 5 V 10.16 x 6.6 x 4.57mm 10.16mm 6.6mm 4.57mm -
RS 제품 번호 796-7997
제조사 부품 번호LM111JG
₩26,982.40
Each (In a Pack of 2)
수량
General Purpose Through Hole CDIP Single Open Collector, Open Drain 1 115 ns, 165 ns 8 5 V 10.16 x 7.11 x 5.08mm 10.16mm 7.11mm 5.08mm -
RS 제품 번호 527-198
제조사 부품 번호LM339N
₩478.95
Each (In a Pack of 25)
수량
General Purpose Through Hole PDIP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm -
RS 제품 번호 922-2350
제조사 부품 번호LM111JG
₩28,177.45
Each (In a Tube of 13)
수량
General Purpose Through Hole CDIP Single Open Collector, Open Drain 1 115 ns, 165 ns 8 5 V 10.16 x 7.11 x 5.08mm 10.16mm 7.11mm 5.08mm -
RS 제품 번호 121-8704
제조사 부품 번호LM339N/NOPB
₩1,770.10
Each (In a Tube of 25)
수량
General Purpose Through Hole MDIP Dual, Single Open Collector 4 1.3µs 14 3 to 28 V 19.05 x 6.35 x 3.3mm 19.05mm 6.35mm 3.3mm -
RS 제품 번호 145-6064
제조사 부품 번호TLV3202AIDGK
₩2,089.40
Each (In a Tube of 80)
수량
Low Power Surface Mount MSOP Single Push-Pull 1 2.9ns 8 2.7 → 5.5 V 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 70dB
RS 제품 번호 100-0752
제조사 부품 번호LM393D
₩438.65
Each (In a Tube of 75)
수량
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
RS 제품 번호 759-0241
제조사 부품 번호ADCMP604BKSZ-R2
제조사Analog Devices
₩9,030.30
Each
수량
High Speed Surface Mount SC-70 Single LVDS 1 0.003µs 6 2.5 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 50dB