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 946 รายการ / Viewing 1 - 20 of 946 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. 168-4869
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM2901DR
THB3.579
Each (On a Reel of 2500)
Units
Differential Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm -
RS Stock No. 145-7305
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM2901D
THB12.506
Each (In a Tube of 50)
Units
Differential Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm -
RS Stock No. 528-365
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM2901DR
THB6.958
Each: (In a Pack of 25)
Units
Differential Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm -
RS Stock No. 517-2368
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM2901D
THB13.478
Each: (In a Pack of 20)
Units
Differential Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm -
RS Stock No. 121-8466
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM2903P
THB12.989
Each (In a Tube of 50)
Units
Differential Through Hole PDIP Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm -
RS Stock No. 810-267
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM2903P
THB13.45
Each
Units
Differential Through Hole PDIP Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm -
RS Stock No. 661-2729
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TLV3401IDBVT
THB79.608
Each: (In a Pack of 5)
Units
Low Power Surface Mount SOT-23 Dual, Single Open Drain 1 - 5 3 → 15 V 2.9 x 1.6 x 1.15mm 2.9mm 1.6mm 1.15mm 88dB
RS Stock No. 178-8810
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM339PW
THB11.916
Each (In a Tube of 90)
Units
General Purpose Surface Mount TSSOP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 5 x 4.4 x 1.15mm 5mm 4.4mm 1.15mm -
RS Stock No. 121-8704
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM339N/NOPB
THB38.588
Each (In a Tube of 25)
Units
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 Stock No. 527-198
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM339N
THB11.613
Each: (In a Pack of 25)
Units
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 Stock No. 533-8237
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM339N/NOPB
THB42.99
Each
Units
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 Stock No. 121-8421
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM339N
THB11.613
Each (In a Tube of 25)
Units
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 Stock No. 517-1898
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM339PW
THB7.277
Each: (In a Pack of 20)
Units
General Purpose Surface Mount TSSOP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 5 x 4.4 x 1.15mm 5mm 4.4mm 1.15mm -
RS Stock No. 920-3475
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM311D
THB13.09
Each (In a Tube of 75)
Units
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 Stock No. 858-433
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM393D
THB14.81
Each
Units
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 Stock No. 517-2396
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM311D
THB11.456
Each: (In a Pack of 20)
Units
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 Stock No. 866-0219
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM311N/NOPB
THB19.053
Each (In a Tube of 40)
Units
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 Stock No. 528-157
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM311DR
THB10.164
Each: (In a Pack of 25)
Units
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 Stock No. 528-343
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM393DR
THB10.762
Each: (In a Pack of 25)
Units
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 Stock No. 100-0752
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM393D
THB10.908
Each (In a Tube of 75)
Units
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 -