The LM293 IC consists of two independent low voltage comparators designed specifically to operate from a single supply over a wide range of voltages. The IC has a distinct advantage over conventional comparators in terms of operating efficiency. The output of the IC always comes in TTL which makes it easy to work with other TTL devices and microcontrollers. The IC also offers a wide range of applications such as high operating speed, fan-in/fan-out capabilities, and low production cost, etc.
Voltage Comparator
A voltage comparator is a simple electronic configuration, that compares two voltages at two different levels, and then switches the output to wither LOW or HIGH state with respect to a voltage that is at a higher level then the other. In other words, a voltage comparator compares the magnitude of two voltage inputs and determines which is the largest of the two. There are two main types of voltage comparators:
- Non inverting Comparators
- Inverting Comparators
LM293 Pinout
LM293 Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | OUTPUT 1 | Output Of Comparator 1 |
| 2 | INV-INPUT 1 | Inverting Input Of Comparator 1 |
| 3 | NON-INV-INPUT 1 | Non Inverting Input Of Comparator 1 |
| 4 | VCC- | Negative Power Supply |
| 5 | NON-INV-INPUT 2 | Non Inverting Input Of Comparator 2 |
| 6 | INV-INPUT 2 | Inverting Input Of Comparator 2 |
| 7 | OUTPUT 2 | Output Of Comparator 2 |
| 8 | VCC+ | Positive Power Supply |
Order Codes
| Part No | Temp: Range |
|---|---|
| LM193, LM193A | -55 to +125 |
| LM293, LM293A | -40 to +105 |
| LM393, LM393A | 0 to +70 |
LM293 Features
- Wide single-supply voltage range or dual supplies: +2 V to +36 V or ±1 V to ±18 V
- Very low supply current (0.4 mA) independent of supply voltage (1 mW/comparator at +5 V)
- Low input bias current: 25 nA typ.
- Low input offset current: ±5 nA typ.
- Low input offset voltage: ±1 mV typ.
- Input common-mode voltage range includes ground
- Low output saturation voltage: 250 mV typ. (Isink = 4 mA)
- Differential input voltage range equal to the supply voltage
Application
- Cordless power tool
- Wireless infrastructure Appliances
- Building automation
- Factory automation & control
- Motor drives
- Infotainment & cluster
LM293 Datasheet
You can download this datasheet for LM293 Low Power Dual Comparator from the link given below:
See Also: CD4060 14-Stage Ripple-Carry Binary Counter -Datasheet | CD4066 Quad Bilateral Switch – Datasheet | CD4050 Hex Buffer Converter (N-inverting) – Datasheet
