The LM111, LM211, and LM311 devices are single
high-speed voltage comparators. These devices are
designed to operate from a wide range of powersupply voltages, including ±15-V supplies for
operational amplifiers and 5-V supplies for logic
systems. The output levels are compatible with most
TTL and MOS circuits. These comparators are
capable of driving lamps or relays and switching
voltages up to 50V at 50mA. All inputs and outputs
can be isolated from system ground. The outputs can
drive loads referenced to ground, VCC+ or VCC−. Offset
balancing and strobe capabilities are available, and
the outputs can be wire-OR connected. If the strobe
is low, the output is in the off state, regardless of the
differential input.
Features :
- Fast Response Time: 165 ns
- Strobe Capability
- Maximum Input Bias Current: 300 nA
- Maximum Input Offset Current: 70 nA
- Can Operate From Single 5-V Supply
- Available in Q-Temp Automotive – High-Reliability Automotive Applications – Configuration Control and Print Support – Qualification to Automotive Standards
- On Products Compliant to MIL-PRF-38535,
All Parameters Are Tested Unless Otherwise
Noted. On All Other Products, Production
Processing Does Not Necessarily Include Testing
of All Parameters.
Applications :
- Desktop PCs
- Body Control Modules
- White Goods
- Building Automation
- Oscillators
- Peak Detectors
- Inverter
LM311 Pinout :

Absolute Maximum Ratings :
- Supply voltage VCC+
(2) 18V
- Supply voltage VCC+ = VCC– : 36V
- VID Differential input voltage(3) ±30 V
- VI
Input voltage (either input)(2)(4) ±15 V
- Voltage from emitter output to VCC– 30 V
- TJ Operating virtual-junction temperature 150 °C