Overview
The LM293ADT, produced by STMicroelectronics, is a low-power dual voltage comparator designed to operate from a single supply over a wide range of voltages. It consists of two independent low voltage comparators, making it versatile for various applications. The device is capable of operating from split power supplies as well, and its input common-mode voltage range includes ground, even when operated from a single power supply voltage.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2 V to 36 V or ±1 V to ±18 V | V |
| Supply Current | 0.45 mA (typ.) | mA |
| Input Bias Current | 20 nA (typ.) | nA |
| Input Offset Current | ±3 nA (typ.) | nA |
| Input Offset Voltage | ±1 mV (typ.) | mV |
| Input Common-Mode Voltage Range | Includes ground | - |
| Output Saturation Voltage | 80 mV (typ. at Isink = 4 mA) | mV |
| Differential Input Voltage Range | Equal to the supply voltage | - |
| Output Compatibility | TTL, DTL, ECL, MOS, CMOS | - |
| Package | SO-8 | - |
| Operating Temperature Range | -40°C to 85°C | °C |
| ESD Protection | 2 kV HBM (for LM393W, but not specified for LM293ADT) | V |
Key Features
- Wide single-supply voltage range or dual supplies: 2 V to 36 V or ±1 V to ±18 V
- Very low supply current (0.45 mA) independent of supply voltage
- Low input bias current: 20 nA typ.
- Low input offset current: ±3 nA typ.
- Low input offset voltage: ±1 mV typ.
- Input common-mode voltage range includes ground
- Low output saturation voltage: 80 mV typ. (Isink = 4 mA)
- Differential input voltage range equal to the supply voltage
- Output compatible with TTL, DTL, ECL, MOS, CMOS
- Available in various packages including SO-8, TSSOP-8L, QFN-8L P 0.5 mm, and MiniSO-8
Applications
- Vacuum robots and other automated systems
- Industrial control systems requiring low power and high accuracy
- Medical devices where low power consumption is crucial
- Aerospace and defense applications due to its robust specifications
- General-purpose comparator applications in various electronic circuits
Q & A
- What is the supply voltage range for the LM293ADT?
The LM293ADT can operate from a single supply voltage range of 2 V to 36 V or from dual supplies ranging from ±1 V to ±18 V.
- What is the typical supply current of the LM293ADT?
The typical supply current is 0.45 mA, which is independent of the supply voltage.
- What is the input bias current of the LM293ADT?
The input bias current is typically 20 nA.
- What is the input offset voltage of the LM293ADT?
The input offset voltage is typically ±1 mV.
- Does the input common-mode voltage range include ground?
Yes, the input common-mode voltage range includes ground even when operated from a single power supply voltage.
- What is the output saturation voltage of the LM293ADT?
The output saturation voltage is typically 80 mV at an Isink of 4 mA.
- What types of outputs are compatible with the LM293ADT?
The outputs are compatible with TTL, DTL, ECL, MOS, and CMOS.
- In what packages is the LM293ADT available?
The LM293ADT is available in SO-8, TSSOP-8L, QFN-8L P 0.5 mm, and MiniSO-8 packages.
- What is the operating temperature range of the LM293ADT?
The operating temperature range is -40°C to 85°C.
- Does the LM293ADT have ESD protection?
While the LM393W has 2 kV HBM ESD protection, this is not specified for the LM293ADT.
