Overview
The LMV393MMX/NOPB is a dual comparator from Texas Instruments, designed for general-purpose, low-voltage applications. It is part of the LMV331-N, LMV339-N, and LMV393-N family, which are low-voltage versions of the traditional LM393 and LM339 comparators. These comparators are optimized for space-saving designs and offer low power consumption, making them ideal for portable consumer products and other low-voltage applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 2.7 | - | 5 | V |
| Supply Current (per channel) | 40 | 70 | 140 | µA |
| Input Offset Voltage | 1.7 | 7 | - | mV |
| Input Bias Current | 10 | 250 | 400 | nA |
| Input Common Mode Voltage Range | -0.1 | - | 2.0 | V |
| Saturation Voltage (ISINK ≤ 1 mA) | 120 | - | - | mV |
| Propagation Delay | - | 200 | - | ns |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Types | - | SOIC, VSSOP | - | - |
Key Features
- Ensured performance over 2.7-V to 5-V supply range
- Low supply current: 70 µA/channel (typical)
- Industrial temperature range: -40°C to 85°C
- Low output saturation voltage: 200 mV (typical at ISINK ≤ 1 mA)
- Fast response time with propagation delays as low as 200 ns
- Open collector output configuration for wired-OR configurations
- Ground sensing input with a common mode voltage range including ground
- Space-saving packages: 8-pin SOIC and VSSOP
- Bipolar input and output stages for improved noise performance
Applications
- Mobile communications
- Notebooks and PDAs
- Battery-powered electronics
- General-purpose portable devices
- General-purpose, low-voltage applications
Q & A
- What is the supply voltage range of the LMV393MMX/NOPB? The supply voltage range is from 2.7 V to 5 V.
- What is the typical supply current per channel for the LMV393MMX/NOPB? The typical supply current per channel is 70 µA.
- What is the operating temperature range of the LMV393MMX/NOPB? The operating temperature range is from -40°C to 85°C.
- What is the propagation delay of the LMV393MMX/NOPB? The propagation delay is as low as 200 ns.
- What types of packages are available for the LMV393MMX/NOPB? The LMV393MMX/NOPB is available in 8-pin SOIC and VSSOP packages.
- Does the LMV393MMX/NOPB have an open collector output? Yes, it has an open collector output configuration.
- What is the input common mode voltage range of the LMV393MMX/NOPB? The input common mode voltage range includes ground and goes up to 0.8 V below Vcc.
- How should the output pull-up resistor be chosen for the LMV393MMX/NOPB? The output pull-up resistor should be chosen to be between 1 kΩ and 10 kΩ to avoid excessive power dissipation and ensure sufficient drive for the load circuitry.
- What are some typical applications of the LMV393MMX/NOPB? Typical applications include mobile communications, notebooks, PDAs, battery-powered electronics, and general-purpose portable devices.
- Why is proper grounding important for the LMV393MMX/NOPB? Proper grounding, using a good, unbroken low-inductance ground plane, helps maintain the specified performance of the comparator by reducing input noise.
