LM161/LM361 High Speed Differential Comparators General Description Features The LM161/LM361 is a very high speed differential input, complementary TTL output voltage comparator with improved characteristics over the SE529/NE529 for which it is a pin-for-pin replacement. The device has been optimized for greater speed performance and lower input offset voltage. Typically delay varies only 3 ns for over-drive variations of 5 mV to 500 mV. It may be operated from op amp supplies ( 15V). Complementary outputs having maximum skew are provided. Applications involve high speed analog to digital converters and zero-crossing detectors in disk file systems. n n n n n n n n Connection Diagrams Logic Diagram Independent strobes Guaranteed high speed: 20 ns max Tight delay matching on both outputs Complementary TTL outputs Operates from op amp supplies: 15V Low speed variation with overdrive variation Low input offset voltage Versatile supply voltage range Dual-In-Line Package DS005708-4 *Output is low when current is drawn from strobe pin. DS005708-2 Top View Order Number LM361M, LM361MX or LM361N See NS Package Number M14A or N14A Metal Can Package DS005708-3 Order Number LM161H/883 or LM361H See NS Package Number H10C (c) 2000 National Semiconductor Corporation DS005708 www.national.com LM161/LM361 High Speed Differential Comparators August 2000 LM161/LM361 Absolute Maximum Ratings (Note 1) Operating Conditions If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Positive Supply Voltage, V+ Negative Supply Voltage, V- Gate Supply Voltage, VCC Output Voltage Differential Input Voltage Input Common Mode Voltage Power Dissipation Storage Temperature Range Operating Temperature Range LM161 Min Supply Voltage V+ LM161 LM361 Supply Voltage V- LM161 LM361 Supply Voltage VCC LM161 LM361 +16V -16V +7V +7V 5V 6V 600 mW -65C to +150C TMAX TMIN -55C to +125C -25C to +85C 0C to +70C 260C 0.3V LM361 Lead Temp. (Soldering, 10 seconds) For Any Device Lead Below V- Typ Max 5V 5V 15V 15V -6V -6V -15V -15V 4.5V 4.75V 5V 5V 5.5V 5.25V ESD Tolerance (Note 5) 1600V Soldering Information Dual-In-Line Package Soldering (10 seconds) 260C Small Outline Package Vapor Phase (60 seconds) 215C Infrared (15 seconds) 220C See AN-450 "Surface Mounting Methods and Their Effect on Product Reliability" for other methods of soldering surface mount devices. Electrical Characteristics (V+ = +10V, VCC = +5V, V- = -10V, TMIN TA TMAX, unless noted) Limits Parameter Conditions LM161 Min Input Offset Voltage Input Bias Current TA =25C LM361 Typ Max 1 3 Min 5 Max 1 5 mV 30 A 5 A 10 20 Input Offset Current TA =25C Units Typ 2 A 2 3 A Voltage Gain TA =25C 3 3 V/mV Input Resistance TA =25C, f=1 kHz 20 20 k 3.3 V Logical "1" Output Voltage VCC =4.75V, 2.4 3.3 2.4 ISOURCE =-0.5 mA Logical "0" Output Voltage VCC =4.75V, 0.4 0.4 V 200 200 A -1.6 -1.6 mA 0.8 V ISINK =6.4 mA Strobe Input "1" Current VCC =5.25V, (Output Enabled) VSTROBE =2.4V Strobe Input "0" Current VCC =5.25V, (Output Disabled) VSTROBE =0.4V Strobe Input "0" Voltage VCC =4.75V Strobe Input "1" Voltage VCC =4.75V Output Short Circuit Current VCC =5.25V, VOUT =0V Supply Current I+ V+ =10V, V- =-10V, VCC =5.25V, -55CTA125C + V+ =10V, V- =-10V, VCC =5.25V, 0CTA70C - V+ =10V, V- =-10V, VCC =5.25V, -55CTA125C Supply Current I Supply Current I www.national.com 0.8 2 -18 2 -55 -18 V -55 4.5 mA 5 10 2 mA mA mA (Continued) (V+ = +10V, VCC = +5V, V- = -10V, TMIN TA TMAX, unless noted) Limits Parameter Conditions LM161 Min Typ LM361 Max Min Typ V+ =10V, V- =-10V,VCC =5.25V, 0CTA70C - Supply Current I Units Max 10 mA V+ =10V, V- =-10V, Supply Current ICC VCC =5.25V, 18 mA -55CTA125C V+ =10V, V- =-10V, Supply Current ICC VCC =5.25V, 20 mA 0CTA70C Transient Response VIN = 50 mV overdrive (Note 3) Propagation Delay Time (tpd(0)) TA =25C 14 20 14 20 ns Propagation Delay Time (tpd(1)) TA =25C 14 20 14 20 ns Delay Between Output A and B TA =25C 2 5 2 5 ns Strobe Delay Time (tpd(0)) TA =25C 8 8 ns Strobe Delay Time (tpd(1)) TA =25C 8 8 ns Note 1: The device may be damaged by use beyond the maximum ratings. Note 2: Typical thermal impedances are as follows: DS005708-17 Note 3: Measurements using AC Test circuit, Fanout = 1. The devices are faster at low supply voltages. Note 4: Refer to RETS161X for LM161H and LM161J military specifications. Note 5: Human body model, 1.5 k in series with 100 pF. Typical Performance Characteristics Offset Voltage Input Currents vs Ambient Temperature Input Characteristics DS005708-10 DS005708-8 DS005708-9 3 www.national.com LM161/LM361 Electrical Characteristics LM161/LM361 Typical Performance Characteristics Supply Current vs Ambient Temperature (Continued) Supply Current vs Supply Voltage DS005708-12 DS005708-11 Delay of Output 1 With Respect to Output 2 vs Ambient Temperature Propagation Delay vs Ambient Temperature Strobe Delay vs Ambient Temperature Common-Mode Pulse Response DS005708-15 DS005708-14 Propagation Delay vs Supply Voltage DS005708-7 www.national.com 4 DS005708-13 DS005708-16 LM161/LM361 AC Test Circuit DS005708-6 VIN = 50 mV FANOUT = 1 FANOUT = 4 V+ = +10V R = 2.4k R = 680 V- = -10V C=15 pF C = 30 pF VCC = 5.25V 5 www.national.com LM161/LM361 Schematic Diagram LM161 DS005708-1 R10, R16: 85 R11, R17: 205 www.national.com 6 LM161/LM361 Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) Order Number LM161H/883, or LM361H NS Package Number H10C Order Number LM361M or LM361MX NS Package Number M14A 7 www.national.com LM161/LM361 High Speed Differential Comparators Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Molded Dual-In-Line Package (N) Order Number LM361N NS Package Number N14A LIFE SUPPORT POLICY NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com www.national.com National Semiconductor Europe Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Francais Tel: +33 (0) 1 41 91 8790 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: ap.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. National P/N LM361 - High Speed Differential Comparator See A/D Converters Products Products > Analog - Comparators > LM361 LM361 Product Folder High Speed Differential Comparator Generic P/N 361 General Description Features Package & Models Datasheet Parametric Table Samples & Pricing Design Tools Application Notes Parametric Table Number of Channels 1 Input Range Differential Response Time, typ (us) .0140 Output Type Differential Supply Voltage, min (Volt) 11 Output Current, typ (mA) 50 Supply Voltage, max (Volt) 32 Vos, Room max (mV) 1 Supply Current per Channel, typ (mA) 13 Input Bias Current, max (nA) 30000 Special Functions Strobe Datasheet Size in Date Kbytes Title LM161 LM361 High Speed Differential Comparators LM161 LM361 High Speed Differential Comparators (JAPANESE) View Online Download 23245 Aug- View Online Kbytes 00 Download 260 Kbytes Download View Online Receive via Email Receive via Email Receive via Email If you have trouble printing or viewing PDF file(s), see Printing Problems. Package Availability, Models, Samples & Pricing Part Number Package Status Type Budgetary Samples & Pricing Electronic $US Orders SPICE IBIS Qty each Models Pins MSL LM361M SOIC NARROW 14 MSL Full production N/A N/A LM361MX SOIC NARROW 14 MSL Full production N/A N/A 24 Hour Samples Buy Now Buy Now Std Pack Size Package Marking 1K+ $1.3100 rail of 55 [logo]UZ2T LM361M 1K+ $1.3100 reel of 2500 [logo]UZ2T LM361M file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM361.html (1 of 3) [09-Aug-2002 2:13:52 PM] National P/N LM361 - High Speed Differential Comparator LM361N MDIP 14 MSL Full production N/A N/A LM361H TO-5 10 MSL Full production N/A N/A LM361 MDC LM361 MWC Die Full production Wafer Full production N/A N/A N/A Buy Now 1K+ $1.3300 rail of 25 [logo]UZ3TP LM361N Buy Now 1K+ $2.0800 box of 500 [logo]Z2T LM361H gel pak of N/A - wafer jar of N/A - Samples N/A General Description The LM161/LM361 is a very high speed differential input, complementary TTL output voltage comparator with improved characteristics over the SE529/NE529 for which it is a pin-for-pin replacement. The device has been optimized for greater speed performance and lower input offset voltage. Typically delay varies only 3 ns for over-drive variations of 5 mV to 500 mV. It may be operated from op amp supplies (15V). Complementary outputs having maximum skew are provided. Applications involve high speed analog to digital converters and zero-crossing detectors in disk file systems. Features Independent strobes Guaranteed high speed: 20 ns max Tight delay matching on both outputs Complementary TTL outputs Operates from op amp supplies: 15V Low speed variation with overdrive variation Low input offset voltage Versatile supply voltage range Design Tools Title Size in Kbytes Date Amplifiers Selection Guide software for Windows 7 Kbytes View Online Download Receive via Email 12-Jun-2002 View If you have trouble printing or viewing PDF file(s), see Printing Problems. Application Notes Title Size in Kbytes Date Receive via Email View Online Download file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM361.html (2 of 3) [09-Aug-2002 2:13:52 PM] National P/N LM361 - High Speed Differential Comparator AN-516: Interfacing the DP8344 to Twinax 4-Nov-95 View Online Download Receive via Email AN-641: MPA Multi-Protocol Terminal Emulation Adapter Using 1197 Kbytes the DP8344 5-Aug-95 View Online Download Receive via Email AN-87: Application Note 87 Comparing the High Speed Comparators 210 Kbytes 24-Feb-99 View Online Download Receive via Email SB-110: IBM 3270/5250 Connectivity 92 Kbytes 28-Jun-96 View Online Download Receive via Email AN-294: Special Sample and Hold Techniques 133 Kbytes 4-Nov-95 View Online Download Receive via Email 492 Kbytes If you have trouble printing or viewing PDF file(s), see Printing Problems. [Information as of 5-Aug-2002] Search Design Purchasing Quality Company Home About Languages . Website Guide . About "Cookies" . National is QS 9000 Certified . Privacy/Security Statement . Contact Us . Site Terms & Conditions of Use . Copyright 2002 (c) National Semiconductor Corporation . My Preferences . Feedback file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM361.html (3 of 3) [09-Aug-2002 2:13:52 PM]