Low Power Drain . . . 900 μW Typical With
5-V Supply
Operates From ±15 V or From a Single
Supply as Low as 3 V
Output Drive Capability of 25 mA
Emitter Output Can Swing Below Negative
Supply
Response Time . . . 1.2 μs Typ
Low Input Currents:
Offset Current . . . 2 nA Typ
Bias Current . . . 15 nA Typ
Wide Common-Mode Input Range:
−14.5 V to 13.5 V Using ±15-V Supply
Offset Balancing and Strobe Capability
Same Pinout as LM211, LM311
Designed To Be Interchangeable With
Industry-Standard LP311

description/ordering information
The LP211 and LP311 devices are low-power versions of the industry-standard LM211 and LM311 devices.
They take advantage of stable, high-value, ion-implanted resistors to perform the same function as the LM311
series, with a 30:1 reduction in power consumption, but only a 6:1 slowdown in response time. They are well
suited for battery-powered applications and all other applications where fast response times are not needed.
They operate over a wide range of supply voltages, from ±18 V down to a single 3-V supply with less than 300-μA
current drain, but are still capable of driving a 25-mA load. The LP211 and LP311 are quite easy to apply free
of oscillation if ordinary precautions are taken to minimize stray coupling from the output to either input or to the
trim pins. In addition, offset balancing is available to minimize input offset voltage. Strobe capability also is
provided to turn off the output (regardless of the inputs) by pulling the strobe pin low.
The LP211 is characterized for operation from −25°C to 85°C. The LP311 is characterized for operation from
0°C to 70°C.