Overview
The LM211DRE4, produced by Texas Instruments, is a high-speed voltage comparator that belongs to the LM211 series. This device is designed to operate over a wide range of power-supply voltages, including standard ±15V op amp supplies and single 5-V supplies for logic systems. The LM211DRE4 is known for its fast response time, low input bias current, and the ability to drive loads such as lamps or relays, switching voltages up to 50 V at currents as high as 50 mA. The device is available in a SOIC (8) package, making it suitable for various applications requiring high reliability and performance.
Key Specifications
| Parameter | Test Conditions | Typical Value | Maximum Value | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VIO) | TA = 25°C | 3 | 10 | mV |
| Input Offset Current (IIO) | TA = 25°C | 10 | 70 | nA |
| Input Bias Current (IIB) | 1 V ≤ VO ≤ 14 V, TA = 25°C | 100 | 300 | nA |
| Response Time (Low-to-High-Level Output) | RC = 500 Ω to 5 V, CL = 5 pF, TA = 25°C | 115 | - | ns |
| Response Time (High-to-Low-Level Output) | RC = 500 Ω to 5 V, CL = 5 pF, TA = 25°C | 165 | - | ns |
| Supply Voltage Range | - | - | ±18 V | V |
| Operating Temperature Range | - | - | -40°C to +85°C | °C |
Key Features
- Fast Response Time: The LM211DRE4 has a fast response time of 165 ns for high-to-low-level output and 115 ns for low-to-high-level output.
- Strobe Capability: The device includes a strobe pin that allows for external control of the output state.
- Low Input Bias Current: Maximum input bias current of 300 nA and maximum input offset current of 70 nA.
- Wide Supply Voltage Range: Can operate from single 5-V supply to ±15 V supplies.
- High Output Drive Capability: Can drive loads up to 50 V at 50 mA and is compatible with TTL, DTL, and MOS circuits.
- Offset Balancing and Wire-OR Capability: Provides offset balancing and the ability to wire-OR outputs.
Applications
- Desktop PCs: Used in various PC applications requiring high-speed voltage comparison.
- Body Control Modules: Suitable for automotive body control modules due to its high reliability and temperature range.
- White Goods and Building Automation: Used in household appliances and building automation systems.
- Oscillators and Peak Detectors: Can be used in oscillator circuits and peak detector applications.
Q & A
- What is the typical response time of the LM211DRE4?
The typical response time for high-to-low-level output is 165 ns, and for low-to-high-level output, it is 115 ns.
- What is the maximum input bias current of the LM211DRE4?
The maximum input bias current is 300 nA).
- Can the LM211DRE4 operate from a single 5-V supply?
- What is the maximum output drive capability of the LM211DRE4?
- Is the LM211DRE4 compatible with TTL and MOS circuits?
- What is the operating temperature range of the LM211DRE4?
- Does the LM211DRE4 have strobe capability?
- Can the outputs of the LM211DRE4 be wire-OR connected?
- What are some common applications of the LM211DRE4?
- What package type is the LM211DRE4 available in?
