Overview
The LM293DMR2G, part of the LM393 series, is a dual independent precision voltage comparator produced by onsemi. These devices are capable of operating with either single or split supply configurations, making them versatile for various applications. The LM293DMR2G is designed to allow a common mode range-to-ground level with single supply operation, which is particularly useful in consumer, automotive, and industrial electronics. The low input offset voltage, as low as 2.0 mV, enhances the accuracy and reliability of the comparator in different operational environments.
Key Specifications
| Characteristic | Symbol | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| Power Supply Voltage | VCC | V | 2.0 | - | 36 or ±18 |
| Input Differential Voltage | VIDR | V | - | - | 36 |
| Input Common Mode Voltage Range | VICR | V | -0.3 | - | VCC - 1.5 |
| Input Offset Voltage | VIO | mV | - | ±1.0 | ±5.0 |
| Input Offset Current | IIO | nA | - | ±5.0 | ±50 |
| Input Bias Current | IIB | nA | - | 20 | 250 |
| Output Sink Current | ISink | mA | 6.0 | 16 | - |
| Output Saturation Voltage | VOL | mV | - | 150 | 400 |
| Supply Current | ICC | mA | 0.4 | 1.0 | - |
| Operating Ambient Temperature Range | TA | °C | -25 | - | 85 |
Key Features
- Wide single-supply range: 2.0 Vdc to 36 Vdc and split-supply range: ±1.0 Vdc to ±18 Vdc
- Very low current drain independent of supply voltage: 0.4 mA
- Low input bias current: 25 nA and low input offset current: 5.0 nA
- Low input offset voltage: 5.0 mV (max)
- Input common mode range to ground level and differential input voltage range equal to power supply voltage
- Output voltage compatible with DTL, ECL, TTL, MOS, and CMOS logic levels
- ESD clamps on the inputs increase the ruggedness of the device without affecting performance
- Pb-free, halogen-free/BFR-free, and RoHS compliant
- AEC-Q100 qualified and PPAP capable for automotive applications (NCV prefix)
Applications
The LM293DMR2G is suitable for a wide range of applications, including:
- Consumer electronics: For precision voltage comparison in various consumer devices.
- Automotive electronics: Qualified for automotive use with the NCV prefix, it meets AEC-Q100 standards and is PPAP capable.
- Industrial electronics: Used in industrial control systems, sensors, and other precision voltage comparison tasks.
- Medical devices: Where precise voltage comparison is critical.
- Telecommunications: For signal conditioning and comparison in telecommunications equipment.
Q & A
- What is the power supply voltage range for the LM293DMR2G?
The power supply voltage range is from 2.0 Vdc to 36 Vdc for single supply and ±1.0 Vdc to ±18 Vdc for split supply.
- What is the input offset voltage of the LM293DMR2G?
The input offset voltage is as low as ±1.0 mV and up to ±5.0 mV.
- What is the input bias current of the LM293DMR2G?
The input bias current is typically 20 nA and can be up to 250 nA.
- What is the output sink current of the LM293DMR2G?
The output sink current is typically 6.0 mA and can be up to 16 mA.
- Is the LM293DMR2G suitable for automotive applications?
- What are the operating temperature ranges for the LM293DMR2G?
- Is the LM293DMR2G RoHS compliant?
- What logic levels are compatible with the output voltage of the LM293DMR2G?
- How does the ESD protection feature work on the LM293DMR2G?
- What is the typical supply current for the LM293DMR2G?
