Overview
The LM211QDR, produced by Texas Instruments, is a single high-speed voltage comparator. This device is part of the LM111, LM211, and LM311 family, known for their low input currents and wide range of power-supply voltages. The LM211QDR is specifically designed for automotive applications and complies with AEC-Q100 standards. It operates over a temperature range of -40°C to 125°C, making it suitable for high-reliability and harsh environment applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Supply, Single/Dual (±) | 3.5 V ~ 30 V, ±1.75 V ~ 15 V | V |
| Voltage - Input Offset (Max) | 3 mV @ ±15 V | mV |
| Current - Input Bias (Max) | 0.1 µA @ ±15 V | µA |
| Current - Output (Typ) | 50 mA | mA |
| Current - Quiescent (Max) | 6 mA | mA |
| Operating Temperature | -40°C ~ 125°C | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | |
| Mounting Type | Surface Mount | |
| Response Time (Typ) | 165 ns | ns |
Key Features
- Fast response time: 165 ns for high-to-low level output.
- Strobe capability: Allows the output to be turned off regardless of the differential input when the strobe is low.
- Low input bias current: Maximum of 0.1 µA at ±15 V.
- Wide supply voltage range: Operates from 3.5 V to 30 V and ±1.75 V to ±15 V.
- Output compatibility: Compatible with TTL, MOS, DTL, and RTL circuits.
- High output drive capability: Can drive loads up to 50 V at 50 mA.
- Offset balancing and wire-OR capability: Allows for external offset adjustment and output combination.
Applications
- Desktop PCs: Used in various comparator and logic circuits within desktop PCs.
- Body Control Modules: Suitable for automotive applications due to its AEC-Q100 compliance.
- White Goods: Can be used in household appliances for voltage comparison and control.
- Building Automation: Used in control and monitoring systems within buildings.
- Oscillators and Peak Detectors: Can be configured to function as oscillators or peak detectors due to its high-speed and low input bias current characteristics.
Q & A
- What is the operating temperature range of the LM211QDR?
The LM211QDR operates over a temperature range of -40°C to 125°C. - What is the typical response time of the LM211QDR?
The typical response time is 165 ns for high-to-low level output. - What is the maximum output current of the LM211QDR?
The maximum output current is 50 mA. - Is the LM211QDR compatible with TTL circuits?
Yes, the LM211QDR is compatible with TTL, MOS, DTL, and RTL circuits. - What is the maximum input offset voltage of the LM211QDR?
The maximum input offset voltage is 3 mV at ±15 V. - Does the LM211QDR have strobe capability?
Yes, the LM211QDR has strobe capability, allowing the output to be turned off regardless of the differential input when the strobe is low. - What is the package type of the LM211QDR?
The LM211QDR comes in an 8-SOIC package. - Is the LM211QDR suitable for automotive applications?
Yes, the LM211QDR is AEC-Q100 compliant, making it suitable for automotive applications. - Can the LM211QDR drive loads referenced to ground, VCC+, or VCC-?
Yes, the LM211QDR can drive loads referenced to ground, VCC+, or VCC-. - Does the LM211QDR support offset balancing?
Yes, the LM211QDR supports offset balancing and wire-OR capability).
