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attributes.Comparator_Type

attributes.Product_Type

attributes.MountType

attributes.Mounting_Type

attributes.Package_Type

attributes.Power_Supply_Type

attributes.Output_Type

attributes.Number_of_Channels

attributes.Number_of_Channels_per_Chip

attributes.Typical_Response_Time

attributes.Pin_Count

attributes.MaximumSupplyVoltage

attributes.MinimumSupplyVoltage

attributes.Typical_Single_Supply_Voltage

attributes.Dimensions

attributes.Length

attributes.Minimum_Operating_Temperature

attributes.Maximum_Operating_Temperature

attributes.Width

attributes.Height

attributes.Series

attributes.StandardsApprovals

attributes.Typical_CMRR

LM393M Texas Instruments, Dual Comparator, CMOS/TTL O/P, O/P, 1.3μs 2 → 36 V 8-Pin SOIC

LMV331IDBVR Texas Instruments, Comparator, Open Collector O/P, 3 V, 5 V 5-Pin SOT-23

LM339M/NOPB Texas Instruments, Quad Comparator, Open Collector O/P, 1.3μs 3 to 28 V 14-Pin SOIC

LM2903PWR Texas Instruments, Dual Comparator, Open Collector O/P, 1.3μs 3 → 28 V 8-Pin TSSOP

LM339PW Texas Instruments, Quad Comparator, Open Collector O/P, 1.3μs 3 → 28 V 14-Pin TSSOP


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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Texas Instruments Comparators

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