Voltage Comparator The LM211 from Texas Instruments (TI) is a single comparator with the following specifications, descriptions, and features:
### **Specifications:**
- **Supply Voltage Range:** ±15V (Dual Supply) or 5V to 30V (Single Supply)
- **Input Offset Voltage:** 2mV (Max)
- **Input Bias Current:** 150nA (Max)
- **Response Time:** 200ns (Typ)
- **Operating Temperature Range:** -25°C to +85°C (LM211) or -55°C to +125°C (LM111)
- **Output Type:** Open-Collector (Compatible with TTL, MOS, and CMOS)
- **Differential Input Voltage Range:** ±30V
- **Common-Mode Input Voltage Range:** Includes Ground
### **Descriptions:**
- The LM211 is a high-speed voltage comparator designed for analog-to-digital conversion and precision threshold detection.
- It features a single open-collector output, making it compatible with various logic levels.
- It is an improved version of the LM111, offering better performance in industrial and automotive applications.
### **Features:**
- **Fast Response Time:** 200ns typical for rapid signal comparison.
- **Wide Supply Voltage Range:** Supports both single and dual power supplies.
- **Low Input Bias Current:** Reduces errors in high-impedance circuits.
- **High Output Sink Current:** 50mA (allows direct driving of relays, lamps, or solenoids).
- **Strobe Control:** Allows output to be disabled for multiplexing applications.
- **ESD Protection:** Improved robustness against electrostatic discharge.
This information is based on the official Texas Instruments datasheet for the LM211 comparator.
