Document
D Low Power Drain . . . 900 μW Typical With
5-V Supply
D Operates From ±15 V or From a Single
Supply as Low as 3 V
D Output Drive Capability of 25 mA D Emitter Output Can Swing Below Negative
Supply
D Response Time . . . 1.2 μs Typ D Low Input Currents:
Offset Current . . . 2 nA Typ Bias Current . . . 15 nA Typ
D Wide Common-Mode Input Range:
−14.5 V to 13.5 V Using ±15-V Supply
D Offset Balancing and Strobe Capability D Same Pinout as LM211, LM311 D Designed To Be Interchangeable With
Industry-Standard LP311
LP211, LP311 LOW-POWER DIFFERENTIAL COMPARATORS
WITH STROBES
SLCS003D − JUNE 1987 − REVISED SEPTEMBER 2003
LP211 . . . D PACKAGE LP311 . . . D, P, OR PS PACKAGE
(TOP VIEW)
EMIT OUT 1 IN+ 2 IN− 3
VCC− 4
8 VCC+ 7 COL OUT 6 BAL/STRB 5 BALANCE
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.
ORDERING INFORMATION
TA
VIO max AT 25°C
PACKAGE†
ORDERABLE PART NUMBER
TOP-SIDE MARKING
PDIP (P) Tube of 50
LP311P
LP311P
−0°C to 70°C
7.5 mV
SOIC (D)
Tube of 75 Reel of 2500
LP311D LP311DR
LP311
SOP (PS) Reel of 2000 LP311PSR
L311
−25°C to 85°C
7.5 mV
SOIC (D)
Tube of 75 Reel of 2500
LP211D LP211DR
LP211
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 2003, Texas Instruments Incorporated 1
LP211, LP311 LOW-POWER DIFFERENTIAL COMPARATORS WITH STROBES
SLCS003D − JUNE 1987 − REVISED SEPTEMBER 2003
functional block diagram
BALANCE
BAL/STRB
IN+
COL OUT
IN−
EMIT OUT
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage (see Note 1): VCC+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V VCC− . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −18 V
Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30 V Input voltage, VI (either input, see Notes 1 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15 V Voltage from emitter output to VCC− . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V Voltage from collector output to VCC− . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V Voltage from collector output to emitter output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V
Duration of output short circuit (see Note 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V Package thermal impedance, θJA (see Notes 5 and 6): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W
P package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85°C/W PS package . . . . . . . . . . . . . . . . . . . . . . . . . . . 95°C/W Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
† Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other c.