Overview
The LM339ADR, produced by Texas Instruments, is a quad differential comparator integrated circuit. It is part of the next-generation B-version comparators, which offer significant improvements over their predecessors. These devices are designed to operate from a single power supply over a wide range of voltages, making them versatile for various applications. The LM339ADR features four independent voltage comparators, each capable of operating with a single supply voltage from 2 V to 36 V.
This component is particularly notable for its enhanced specifications, including lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, and faster response times. It also boasts improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2 V to 36 V | V |
| Differential Input Voltage Range | ±38 V | V |
| Input Offset Voltage (Max over temp) | ±0.37 mV | mV |
| Input Bias Current (Typical) | 3.5 nA | nA |
| Supply Current (Typical per comparator) | 200 µA | µA |
| Response Time (Typical) | 1 µsec | µsec |
| ESD Rating (HBM) | 2 kV | V |
| Operating Temperature Range | 0°C to 70°C | °C |
| Package Type | SOIC (14 pins) |
Key Features
- Improved specifications of B-version comparators, including lower offset voltage and higher supply voltage capability.
- Low input offset voltage: 0.37 mV.
- Low input bias current: 3.5 nA.
- Low supply current: 200 µA per comparator.
- Faster response time: 1 µsec.
- Improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps.
- Common-mode input voltage range includes ground.
- Differential input voltage range equal to maximum-rated supply voltage: ±38 V.
- Low output saturation voltage.
- Output compatible with TTL, MOS, and CMOS.
- Drop-in replacement for LM239, LM339, and LM2901 A and V versions.
Applications
- Industrial automation and control systems.
- Automotive systems, including HEV/EV and power trains, infotainment, and body control modules.
- Power supervision and monitoring.
- Oscillators and peak detectors.
- Logic voltage translation.
- General comparator applications in various electronic systems.
Q & A
- What is the supply voltage range of the LM339ADR?
The supply voltage range of the LM339ADR is from 2 V to 36 V.
- What is the differential input voltage range of the LM339ADR?
The differential input voltage range is ±38 V.
- What is the typical input bias current of the LM339ADR?
The typical input bias current is 3.5 nA.
- What is the response time of the LM339ADR?
The response time is typically 1 µsec.
- What is the ESD rating of the LM339ADR?
The ESD rating is 2 kV (HBM).
- What is the operating temperature range of the LM339ADR?
The operating temperature range is from 0°C to 70°C.
- Is the LM339ADR compatible with TTL, MOS, and CMOS outputs?
- Can the LM339ADR be used as a drop-in replacement for other comparator models?
- What are some common applications of the LM339ADR?
- What package types are available for the LM339ADR?
The LM339ADR is available in SOIC (14 pins) among other package types.
