LM160/LM360 High Speed Differential Comparator General Description Features The LM160/LM360 is a very high speed differential input, complementary TTL output voltage comparator with improved characteristics over the µA760/µA760C, for which it is a pin-for-pin replacement. The device has been optimized for greater speed, input impedance and fan-out, and lower input offset voltage. Typically delay varies only 3 ns for overdrive variations of 5 mV to 400 mV. Complementary outputs having minimum skew are provided. Applications involve high speed analog to digital convertors and zero-crossing detectors in disk file systems. n n n n n n n n Guaranteed high speed: 20 ns max Tight delay matching on both outputs Complementary TTL outputs High input impedance Low speed variation with overdrive variation Fan-out of 4 Low input offset voltage Series 74 TTL compatible Connection Diagrams Metal Can Package Dual-In-Line Package DS005707-4 Order Number LM160H/883 (Note 1) or LM360H See NS Package Number H08C DS005707-5 Order Number LM360M or LM360N See NS Package Number M08A or N08E Note 1: Also available in SMD# 5962-8767401 © 1999 National Semiconductor Corporation DS005707 www.national.com LM160/LM360 High Speed Differential Comparator May 1999 Absolute Maximum Ratings (Notes 6, 8) Storage Temperature Range −65˚C to +150˚C Lead Temperature (Soldering, 10 sec.) 260˚C Soldering Information Dual-In-Line Package Soldering (10 seconds) 260˚C Small Outline Package Vapor Phase (60 seconds) 215˚C Infrared (15 seconds) 220˚C See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount devices. If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Positive Supply Voltage Negative Supply Voltage Peak Output Current Differential Input Voltage Input Voltage ESD Tolerance (Note 9) Operating Temperature Range LM160 LM360 +8V −8V 20 mA ± 5V V+ ≥ VIN ≥ V− 1600V −55˚C to +125˚C 0˚C to +70˚C Electrical Characteristics (TMIN ≤ TA ≤ TMAX) Parameter Conditions Min Typ Max Units Operating Conditions Supply Voltage VCC+ 4.5 5 6.5 V Supply Voltage VCC− −4.5 −5 −6.5 V mV RS ≤ 200Ω Input Offset Voltage Input Offset Current Input Bias Current VOUT = VOH TA = 25˚C, VS = ± 5V (Notes 2, 7) TA = 25˚C, VS = ± 5V (Notes 3, 7) TA = 25˚C, VS = ± 5V (Notes 4, 7) Output Resistance (Either Output) Response Time 2 5 0.5 3 µA 5 20 µA 13 25 ns 12 20 Ω 100 ns 14 ns TA = 25˚C (Notes 2, 7) TA = 25˚C (Notes 2, 7) TA = 25˚C (Notes 2, 7) TA = 25˚C (Notes 2, 7) 2 ns 2 ns 2 ns 2 ns f = 1 MHz f = 1 MHz RS = 50Ω 17 kΩ Response Time Difference between Outputs (tpd of +VIN1) − (tpd of −VIN2) (tpd of +VIN2) − (tpd of −VIN1) (tpd of +VIN1) − (tpd of +VIN2) (tpd of −VIN1) − (tpd of −VIN2) Input Resistance Input Capacitance Average Temperature Coefficient of 3 pF 8 µV/˚C 7 nA/˚C V Input Offset Voltage Average Temperature Coefficient of Input Offset Current Common Mode Input Voltage Range VS = ± 6.5V ±4 ±5 ± 4.5 IOUT = −320 µA, VS = ± 4.5V ISINK = 6.4 mA 2.4 3 Differential Input Voltage Range Output High Voltage (Either Output) Output Low Voltage (Either Output) VS = ± 6.5V VS = ± 6.5V Positive Supply Current Negative Supply Current V V 0.25 0.4 V 18 32 mA −9 −16 mA Note 2: Response time measured from the 50% point of a 30 mVp-p 10 MHz sinusoidal input to the 50% point of the output. Note 3: Response time measured from the 50% point of a 2 Vp-p 10 MHz sinusoidal input to the 50% point of the output. Note 4: Response time measured from the start of a 100 mV input step with 5 mV overdrive to the time when the output crosses the logic threshold. Note 5: Typical thermal impedances are as follows: Cavity DIP (J): θjA 135˚C/W Molded DIP (N): θjA 130˚C/W Header (H) θjA θjC Note 6: The device may be damaged if used beyond the maximum ratings. Note 7: Measurements are made in AC Test Circuit, Fanout = 1 Note 8: Refer to RETS 160X for LM160H, LM160J-14 and LM160J military specifications. www.national.com 2 165˚C/W (Still Air) 67˚C/W (400 LF/min Air Flow) 25˚C/W Electrical Characteristics (Continued) Note 9: Human body model, 1.5 kΩ in series with 100 pF. Typical Performance Characteristics Offset Voltage Input Current vs Ambient Temperature Input Characteristics DS005707-8 DS005707-10 DS005707-9 Supply Current vs Ambient Temperature Propagation Delay vs Ambient Temperature DS005707-11 Delay of Output 1 With Respect to Output 2 vs Ambient Temperature DS005707-12 DS005707-13 Common-Mode Pulse Response DS005707-14 3 www.national.com AC Test Circuit DS005707-3 VIN = ± 50 mV V+ = +5V V− = −5V www.national.com FANOUT = 1 FANOUT = 4 R = 630Ω R = 2.4k C = 15 pF C = 30 pF 4 Schematic Diagram DS005707-1 5 www.national.com Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) Order Number LM160H/883 or LM360H NS Package Number H08C Molded Dual-In-Line Package (M) Order Number LM360M NS Package Number M08A www.national.com 6 LM160/LM360 High Speed Differential Comparator Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Molded Dual-In-Line Package (N) Order Number LM360N NS Package Number N08E 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. 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