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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กำลังดูสินค้า 1 - 20 รายการจาก 124 รายการ / Viewing 1 - 20 of 124 products
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รายละเอียดสินค้า / Description ราคา / Price 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 Stock No. 714-0830
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM393D
THB4.028
Each: (In a Pack of 20)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm -
RS Stock No. 178-5167
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM393DT
THB2.73
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 V, 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm -
RS Stock No. 714-0833
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM393DT
THB9.631
Each: (In a Pack of 20)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 V, 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm -
RS Stock No. 714-0815
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM339DT
THB6.452
Each: (In a Pack of 20)
Units
General Purpose Surface Mount SOIC Dual, Single CMOS, DL, ECL, MOS, TTL 4 1.3µs 14 2 → 36 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS Stock No. 165-7717
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM339DT
THB2.888
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Dual, Single CMOS, DL, ECL, MOS, TTL 4 1.3µs 14 2 → 36 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS Stock No. 877-2756
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM311DT
THB10.058
Each: (In a Pack of 25)
Units
General Purpose Surface Mount SOIC Dual, Single DTL, RTL, TTL 1 200ns 8 5 V 5 x 4 x 1.65mm 5mm 4mm 1.65mm -
RS Stock No. 714-0770
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM311D
THB8.871
Each: (In a Pack of 20)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 1 0.2µs 8 9 → 28 V 5 x 4 x 1.25mm 5mm 4mm 1.25mm -
RS Stock No. 145-9533
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM311DT
THB3.612
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Dual, Single DTL, RTL, TTL 1 200ns 8 5 V 5 x 4 x 1.65mm 5mm 4mm 1.65mm -
RS Stock No. 168-6808
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM311D
THB4.799
Each (In a Tube of 100)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 1 0.2µs 8 9 → 28 V 5 x 4 x 1.25mm 5mm 4mm 1.25mm -
RS Stock No. 714-0811
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM339D
THB55.613
Each: (In a Pack of 20)
Units
General Purpose Surface Mount SOIC Dual, Single CMOS, DL, ECL, MOS, TTL 4 1.3µs 14 2 → 36 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS Stock No. 145-9204
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM339D
THB2.969
Each (In a Tube of 50)
Units
General Purpose Surface Mount SOIC Dual, Single CMOS, DL, ECL, MOS, TTL 4 1.3µs 14 2 → 36 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS Stock No. 189-1889
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TS864IPT
THB29,546.62
1 Reel of 2500
Reel(s)
Micropower Surface Mount TSSOP Single Push-Pull 4 500ns 14 2.7 → 10 V 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm 75dB
RS Stock No. 189-1962
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM293QT
THB10.745
Each: (In a Pack of 25)
Units
Low Power Surface Mount DFN Dual, Single CMOS, DTL, ECL, MOS, TTL 2 1.3µs 8 2 → 36 V 2.05 x 2.05 x 0.7mm 2.05mm 2.05mm 0.7mm -
RS Stock No. 189-1851
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM2903Q2T
THB10,410.00
1 Reel of 3000
Reel(s)
Low Power Surface Mount DFN Dual, Single CMOS, DTL, ECL, MOS, TTL 2 1.3µs 8 2 → 36 V 2.05 x 2.05 x 0.7mm 2.05mm 2.05mm 0.7mm -
RS Stock No. 795-6830
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TS393CDT
THB14.112
Each: (In a Pack of 10)
Units
General Purpose Surface Mount SOIC Dual, Single CMOS, Push-Pull 2 2.5µs 8 2.7 → 16 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 71dB
RS Stock No. 165-5284
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TSX3702IDT
THB12.705
Each (On a Reel of 2500)
Units
Low Power Surface Mount SOIC Dual, Single Push-Pull 2 2.4µs 8 2.7 → 16 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 90dB
RS Stock No. 795-6896
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM239ADT
THB10.772
Each: (In a Pack of 10)
Units
General Purpose Surface Mount SOIC Dual, Single CMOS, DTL, ECL, MOS, TTL 4 1.3µs 14 2 → 36 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS Stock No. 714-0745
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM2901DT
THB6.572
Each: (In a Pack of 20)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS Stock No. 168-6881
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TS3704IPT
THB9.712
Each (On a Reel of 2500)
Units
General Purpose Surface Mount TSSOP Dual, Single Push-Pull 4 2µs 14 3 → 15 V 5 x 4.4 x 1mm 5mm 4.4mm 1mm 80dB
RS Stock No. 860-7404
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TS881ILT
THB28.783
Each: (In a Pack of 10)
Units
Low Power Surface Mount SOT-23 Single Push-Pull 1 160ns 5 0.85 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 78dB