Overview
The LM2903DMR2G, produced by onsemi, is a dual independent precision voltage comparator designed for a wide range of applications. This device is part of the LM393 series and is known for its low offset voltage and versatility in both single and split supply operations. It is particularly suited for use in consumer, automotive, and industrial electronics due to its robust specifications and compatibility with various logic levels.
Key Specifications
| Attribute | Value | Unit |
|---|---|---|
| No of Channels | 2 | |
| Average Bias Current-Max | 250 nA | |
| Supply Voltage | 2 V to 36 V, ±1 V to ±18 V | Vdc |
| Input Differential Voltage Range | 36 V | Vdc |
| Input Common Mode Voltage Range | −0.3 to +36 V | Vdc |
| Output Short Circuit-to-Ground | 20 mA | |
| Operating Ambient Temperature Range | −40 to +105 °C | °C |
| Maximum Operating Junction Temperature | 150 °C | °C |
| Package Style | MICRO-8 | |
| Mounting Method | Surface Mount |
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.
- 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 Packages are Available.
Applications
The LM2903DMR2G is widely used in various applications including:
- Consumer Electronics: Due to its low power consumption and compatibility with multiple logic levels.
- Automotive Electronics: Qualified for automotive use, it is robust and reliable in harsh environments.
- Industrial Electronics: Suitable for applications requiring precision and reliability.
Q & A
- What is the supply voltage range for the LM2903DMR2G?
The supply voltage range is from 2 V to 36 V for single supply and ±1 V to ±18 V for split supply.
- What is the maximum input differential voltage range?
The maximum input differential voltage range is 36 V.
- What is the operating ambient temperature range for this device?
The operating ambient temperature range is from −40 to +105 °C.
- Is the LM2903DMR2G compatible with multiple logic levels?
Yes, it is compatible with DTL, ECL, TTL, MOS, and CMOS logic levels.
- What is the maximum output short circuit current?
The maximum output short circuit current is 20 mA.
- Does the LM2903DMR2G have ESD protection?
Yes, it has ESD clamps on the inputs to increase ruggedness without affecting performance.
- Is the LM2903DMR2G qualified for automotive use?
Yes, it is qualified for automotive use.
- What is the package style of the LM2903DMR2G?
The package style is MICRO-8.
- What is the mounting method for this device?
The mounting method is Surface Mount.
- What is the typical response time for the LM2903DMR2G?
The response time is specified with a 100 mV step and 5.0 mV of overdrive, with faster times achievable with larger overdrives.
