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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Omschrijving Prijs 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-stocknr. 189-7345
FabrikantnummerMAX9203ESA+
FabrikantMaxim Integrated
1,476 €
Each (In a Tube of 100)
Aantal stuks
Low Power Surface Mount SOIC Single TTL 1 12ns 8 4.75 → 10.5 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 50µV/V
RS-stocknr. 190-6658
FabrikantnummerMAX989EUA+
FabrikantMaxim Integrated
2,284 €
Each (In a Pack of 5)
Aantal stuks
Micro Power Comparator Surface Mount μMAX Dual, Single Push-Pull 1 - 8 2.5 → 5.5 V 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 80dB
RS-stocknr. 189-7346
FabrikantnummerMAX922CSA+
FabrikantMaxim Integrated
2,198 €
Each (In a Tube of 100)
Aantal stuks
Low Power Surface Mount SOIC Dual, Single CMOS, TTL 1 12µs 8 2.5 → 11 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 1mV/V
RS-stocknr. 732-7217
FabrikantnummerMAX933ESA+
FabrikantMaxim Integrated
3,00 €
Each
Aantal stuks
General Purpose Surface Mount SOIC Dual, Single CMOS, TTL 2 12µs 8 2.5 → 11 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 0.2mV/V
RS-stocknr. 189-7359
FabrikantnummerMAX962ESA+
FabrikantMaxim Integrated
7,659 €
Each (In a Tube of 100)
Aantal stuks
High Speed Surface Mount SOIC Single - 2 - 8 3 V, 5 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 80dB
RS-stocknr. 189-7347
FabrikantnummerMAX924ESE+
FabrikantMaxim Integrated
4,285 €
Each (In a Tube of 50)
Aantal stuks
Low Power Surface Mount SOIC Single Push-Pull 1 12µs 16 2.5 → 11 V 10 x 4 x 1.5mm 10mm 4mm 1.5mm 0.1mV/V
RS-stocknr. 191-3510
FabrikantnummerMAX920EUK+T
FabrikantMaxim Integrated
1,344 €
Each (In a Pack of 5)
Aantal stuks
Nano Power Surface Mount SOT-23 Single Open Drain 1 - 5 1.8 → 5.5 V 3 x 1.75 x 1.3mm 3mm 1.75mm 1.3mm 0.5mV/V
RS-stocknr. 192-2373
FabrikantnummerMAX932ESA+
FabrikantMaxim Integrated
3,885 €
Each (In a Pack of 2)
Aantal stuks
Low Power Surface Mount SOIC Dual, Single - 2 12µs 8 3 → 9 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 80dB
RS-stocknr. 190-4362
FabrikantnummerMAX9109ESA+
FabrikantMaxim Integrated
0,931 €
Each (In a Tube of 100)
Aantal stuks
Low Power Surface Mount SO Single - 1 - 8 4.5 → 5.5 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 50µV/V
Nieuw
RS-stocknr. 216-7807
FabrikantnummerMAX40027ATC/VY+T
FabrikantMaxim Integrated
5,872 €
Each (On a Reel of 2500)
Aantal stuks
High Speed Surface Mount DFN Single LVDS 2 - 12 2.7 → 3.6 V - - - - -
RS-stocknr. 146-535
FabrikantnummerMAX941CPA+
FabrikantMaxim Integrated
3,54 €
Each
Aantal stuks
General Purpose Through Hole PDIP Single - 1 - 8 3 V, 5 V 9.91 x 7.87 x 4.45mm 9.91mm 7.87mm 4.45mm 81.94dB
RS-stocknr. 189-9150
FabrikantnummerMAX9140EXK+T
FabrikantMaxim Integrated
1,562 €
Each (In a Pack of 5)
Aantal stuks
Low Power Surface Mount SC-70 Single Push-Pull 1 40ns 5 2.7 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 80µV/V
RS-stocknr. 192-2428
FabrikantnummerMAX913EPA+
FabrikantMaxim Integrated
7,83 €
Each
Aantal stuks
Low Power Through Hole PDIP Single Push-Pull 1 - 8 5 V 9.91 x 7.87 x 4.45mm 9.91mm 7.87mm 4.45mm 110dB
Nieuw
RS-stocknr. 216-7808
FabrikantnummerMAX40027ATC/VY+T
FabrikantMaxim Integrated
5,87 €
Each (In a Pack of 2)
Aantal stuks
High Speed Surface Mount DFN Single LVDS 2 - 12 2.7 → 3.6 V - - - - -
RS-stocknr. 189-7360
FabrikantnummerMAX962EUA+
FabrikantMaxim Integrated
5,106 €
Each (In a Tube of 50)
Aantal stuks
General Purpose Surface Mount μMAX Single - 2 - 8 3 V, 5 V 3.05 x 3.05 x 0.95mm 3.05mm 3.05mm 0.95mm 80dB
RS-stocknr. 190-6577
FabrikantnummerMAX9012ESA+
FabrikantMaxim Integrated
3,028 €
Each (In a Pack of 5)
Aantal stuks
Low Power Surface Mount SO Single TTL 2 - 8 4.5 → 5.5 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 95dB
RS-stocknr. 189-7340
FabrikantnummerMAX919EUK+T
FabrikantMaxim Integrated
0,675 €
Each (On a Reel of 2500)
Aantal stuks
Low Power Surface Mount SOT-23 Single Push-Pull 1 6µs 5 1.8 → 5.5 V 3 x 1.75 x 1.3mm 3mm 1.75mm 1.3mm 0.5mV/V
RS-stocknr. 191-3329
FabrikantnummerMAX9063EUK+T
FabrikantMaxim Integrated
0,405 €
Each (On a Reel of 2500)
Aantal stuks
Nano Power Surface Mount SOT-23 Single Open Drain, Push-Pull 1 - 5 1 → 5.5 V 3 x 1.75 x 1.3mm 3mm 1.75mm 1.3mm -
RS-stocknr. 191-4010
FabrikantnummerMAX997EUA+
FabrikantMaxim Integrated
3,197 €
Each (In a Tube of 50)
Aantal stuks
Low Power Surface Mount μMAX Single CMOS, TTL 1 - 8 2.7 → 5.5 V 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 1 (Maximum)mV/V
RS-stocknr. 189-9194
FabrikantnummerMAX964EEE+
FabrikantMaxim Integrated
7,51 €
Each (In a Pack of 2)
Aantal stuks
Low Power Surface Mount QSOP Single CMOS, TTL 4 - 16 +5 V 4.98 x 3.99 x 1.49mm 4.98mm 3.99mm 1.49mm 1.0mV/V