Overview
The LM239AQDREP is a quad differential comparator integrated circuit produced by Texas Instruments. It is part of the LM239 family, known for its wide supply voltage range, low input bias current, and high reliability. This component is designed to operate in various environments, making it suitable for a broad range of applications, including defense, aerospace, and medical fields.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range (Single) | 2 V to 36 V (tested to 30 V) |
| Supply Voltage Range (Dual) | ±1 V to ±18 V (tested to ±15 V) |
| Operating Supply Current | 0.8 mA (typical), 2 mA (max) |
| Input Bias Current | 3.5 nA (typical) |
| Input Offset Voltage | 3 mV (typical) |
| Input Offset Current | 3 nA (typical) |
| Common-Mode Input Voltage Range | Includes ground |
| Differential Input Voltage Range | Equal to maximum-rated supply voltage: ±36 V |
| Output Current per Channel | 6 mA |
| ESD Rating (HBM) | 2 kV |
| Operating Temperature Range | –25°C to +85°C |
| Package | 14-SOIC (0.154", 3.90mm Width) |
Key Features
- Wide supply voltage range: 2 V to 36 V for single supply and ±1 V to ±18 V for dual supplies
- Low supply-current drain independent of supply voltage: 0.8 mA (typical)
- Low input bias current: 3.5 nA (typical)
- Low input offset voltage: 3 mV (typical)
- Common-mode input voltage range includes ground
- Differential input voltage range equal to maximum-rated supply voltage: ±36 V
- Output compatible with TTL, MOS, and CMOS
- Improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps
- Faster response time of 1 µsec
Applications
The LM239AQDREP is versatile and can be used in a variety of applications, including:
- Defense and aerospace systems due to its controlled baseline and extended temperature range
- Medical devices requiring high reliability and low noise
- Industrial control systems where wide supply voltage ranges are necessary
- Automotive systems that require robust and reliable comparators
- General-purpose voltage comparison in electronic circuits
Q & A
- What is the supply voltage range for the LM239AQDREP?
The LM239AQDREP can operate from a single supply of 2 V to 36 V and from dual supplies of ±1 V to ±18 V. - What is the typical input bias current of the LM239AQDREP?
The typical input bias current is 3.5 nA. - What is the input offset voltage of the LM239AQDREP?
The typical input offset voltage is 3 mV. - What is the common-mode input voltage range of the LM239AQDREP?
The common-mode input voltage range includes ground. - What is the differential input voltage range of the LM239AQDREP?
The differential input voltage range is equal to the maximum-rated supply voltage: ±36 V. - What is the ESD rating of the LM239AQDREP?
The ESD rating is 2 kV (HBM). - What is the operating temperature range of the LM239AQDREP?
The operating temperature range is –25°C to +85°C. - What package type is the LM239AQDREP available in?
The LM239AQDREP is available in a 14-SOIC package. - Is the LM239AQDREP compatible with TTL, MOS, and CMOS outputs?
Yes, the LM239AQDREP is compatible with TTL, MOS, and CMOS outputs. - What are some typical applications of the LM239AQDREP?
The LM239AQDREP is used in defense, aerospace, medical devices, industrial control systems, automotive systems, and general-purpose voltage comparison in electronic circuits.
