Overview
The LM393LVDDFR is a low-voltage dual comparator from Texas Instruments, designed to operate in a wide range of supply voltages. This component is part of the LV device family, which offers improved performance and additional features compared to the standard TL331, LM2xx, LM3xx, and LM290x comparator families. The LM393LVDDFR is particularly suited for low-voltage applications, making it an excellent choice for modern electronic designs that require high efficiency and reliability.
Key Specifications
| Parameter | Test Conditions | Typical Value | Unit |
|---|---|---|---|
| Supply Voltage Range | VS = 1.65 V to 5.5 V | - | V |
| Input Offset Voltage | VS = 1.8 V to 5 V, TA = 25°C | 400 µV | µV |
| Input Bias Current | VCM = VS/2 | 5 pA | pA |
| Input Offset Current | VCM = VS/2 | 1 pA | pA |
| Common-Mode Input Voltage Range | VS = 1.8 V and 5 V, TA = –40°C to +125°C | (GND) to (V+) | V |
| Large Signal Differential Voltage Amplification | VCC = 15 V, VO = 1.4 V to 11.4 V, RL ≥ 15 kΩ to VCC | 50 to 200 V/mV | V/mV |
| Propagation Delay Time (High-to-Low) | VID = –10 mV, RP = 2.5 kΩ, CL = 15 pF | 600 ns | ns |
| Propagation Delay Time (Low-to-High) | VID = 10 mV, RP = 2.5 kΩ, CL = 15 pF | 600 ns | ns |
| Quiescent Current | VS = 5 V, no load | 25 µA/Ch | µA |
| Operating Temperature Range | -40°C to +125°C | - | °C |
| Package Type | SOT-23-THN (DDF) | - | - |
Key Features
- 1.65 V to 5.5 V supply range, making it suitable for low-voltage applications.
- Rail-to-Rail input with Failsafe, allowing inputs to go up to 6 V without damage or phase inversion.
- Low input offset voltage of 400 µV typical.
- Fast propagation delay of 600 ns typical.
- Low quiescent current of 25 µA per channel.
- Low input bias current of 5 pA typical.
- Open-drain output.
- Full –40°C to +125°C temperature range.
- Power-On-Reset (POR) for known start-up state.
- 2 kV ESD protection.
- Improved replacement for TL331, LM393, and LM339 family for VCC ≤ 5 V.
Applications
The LM393LVDDFR is versatile and can be used in a variety of applications, including:
- Low-voltage analog circuits.
- Power management systems.
- Sensor interfaces and signal conditioning.
- Industrial control systems.
- Automotive electronics.
- Medical devices requiring low power consumption.
Q & A
- What is the supply voltage range of the LM393LVDDFR?
The LM393LVDDFR operates from a supply voltage range of 1.65 V to 5.5 V.
- What is the typical input offset voltage of the LM393LVDDFR?
The typical input offset voltage is 400 µV.
- What is the propagation delay time of the LM393LVDDFR?
The propagation delay time is typically 600 ns for both high-to-low and low-to-high transitions.
- What is the quiescent current of the LM393LVDDFR?
The quiescent current is typically 25 µA per channel.
- Does the LM393LVDDFR have ESD protection?
Yes, it has 2 kV ESD protection.
- What is the operating temperature range of the LM393LVDDFR?
The operating temperature range is –40°C to +125°C.
- What type of output does the LM393LVDDFR have?
The LM393LVDDFR has an open-drain output.
- Is the LM393LVDDFR compatible with TTL, MOS, and CMOS logic?
No specific compatibility is mentioned for the LM393LVDDFR, but it is generally compatible with various logic families due to its open-drain output.
- What is the Power-On-Reset (POR) feature in the LM393LVDDFR?
The POR feature ensures that the output is in a High-Z state until the minimum supply voltage has been reached, preventing output transients during power-up and power-down.
- Can the LM393LVDDFR replace older comparator models?
Yes, it can replace the standard TL331, LM393, and LM339 family for VCC ≤ 5 V applications.
