Overview
The LM239ADRG4 is a quad differential comparator manufactured by Texas Instruments, designed for precision voltage comparison applications. This component is part of the LM239 series, which is widely recognized for its reliability and performance in various electronic circuits. The LM239ADRG4 is housed in a SOIC-14 package, making it suitable for surface-mount technology (SMT) applications. It is particularly targeted at industries requiring robust and accurate voltage comparison, such as industrial automation, automotive electronics, and consumer electronics. Its unique selling points include low power consumption, wide supply voltage range, and compatibility with TTL, MOS, and CMOS logic levels.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Offset Voltage (Vos) | 3 | mV | |
| Quiescent Current (Max) | 2 | mA | |
| Supply Voltage | 2 to 30 | V | Single Supply |
| Supply Voltage | ±1 to ±15 | V | Dual Supply |
| Output Current | 20 | mA | |
| Input Bias Current | 250 | nA | |
| Output Type | Open-Collector | Compatible with TTL, MOS, CMOS | |
| Operating Temperature | -25 to +85 | °C | |
| Package | SOIC-14 | Surface Mount | |
| Dimensions | 8.65 x 3.90 x 1.75 | mm |
Key Features
- Four independent precision voltage comparators.
- Wide single or dual supply voltage range: 2V to 30V or ±1V to ±15V.
- Low input bias current: 250nA (typical).
- Low output saturation voltage: 250mV (typical).
- Input common-mode voltage range includes ground.
- TTL, MOS, and CMOS logic level compatibility.
- Designed for surface-mount applications with SOIC-14 packaging.
Applications
The LM239ADRG4 is widely used in applications requiring precise voltage comparison, such as level detection, window comparators, and analog-to-digital converters. It is particularly suited for industrial automation systems, automotive control units, and consumer electronics, where its low power consumption and wide voltage range provide significant advantages. Additionally, its compatibility with various logic levels makes it a versatile choice for mixed-signal circuit designs.
Q & A
1. What is the input offset voltage of the LM239ADRG4?
The input offset voltage is typically 3mV.
2. What is the maximum quiescent current?
The maximum quiescent current is 2mA.
3. What is the supply voltage range for single and dual supplies?
The single supply range is 2V to 30V, and the dual supply range is ±1V to ±15V.
4. What is the output current capability?
The output current is 20mA.
5. What is the input bias current?
The input bias current is typically 250nA.
6. What type of output does the LM239ADRG4 have?
It has an open-collector output, compatible with TTL, MOS, and CMOS logic levels.
7. What is the operating temperature range?
The operating temperature range is -25°C to +85°C.
8. What package does the LM239ADRG4 come in?
It is housed in a SOIC-14 package for surface-mount applications.
9. What are the dimensions of the LM239ADRG4?
The dimensions are 8.65mm x 3.90mm x 1.75mm.
10. What are the typical applications of the LM239ADRG4?
Typical applications include level detection, window comparators, and analog-to-digital converters in industrial, automotive, and consumer electronics.
