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 A760/A760C, 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) See NS Package Number H08C DS005707-5 Order Number LM360M, LM360MX or LM360N See NS Package Number M08A or N08E Note 1: Also available in SMD# 5962-8767401 (c) 2000 National Semiconductor Corporation DS005707 www.national.com LM160/LM360 High Speed Differential Comparator August 2000 LM160/LM360 Absolute Maximum Ratings (Notes 6, 8) Storage Temperature Range -65C to +150C Lead Temperature (Soldering, 10 sec.) 260C 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. 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 -55C to +125C 0C to +70C Electrical Characteristics (TMIN TA TMAX) Parameter Conditions Min Typ Max Units 4.5 5 6.5 V -4.5 -5 -6.5 V 2 5 mV 0.5 3 A 5 20 A Operating Conditions Supply Voltage VCC+ - Supply Voltage VCC Input Offset Voltage RS 200 Input Offset Current Input Bias Current Output Resistance (Either Output) VOUT = VOH 100 Response Time TA = 25C, VS = 5V (Notes 2, 7) 13 25 ns TA = 25C, VS = 5V (Notes 3, 7) 12 20 ns TA = 25C, VS = 5V (Notes 4, 7) 14 ns (tpd of +VIN1) - (tpd of -VIN2) TA = 25C (Notes 2, 7) 2 ns (tpd of +VIN2) - (tpd of -VIN1) TA = 25C (Notes 2, 7) 2 ns (tpd of +VIN1) - (tpd of +VIN2) TA = 25C (Notes 2, 7) 2 ns (tpd of -VIN1) - (tpd of -VIN2) TA = 25C (Notes 2, 7) 2 ns Input Resistance f = 1 MHz 17 k Input Capacitance f = 1 MHz 3 pF Average Temperature Coefficient of RS = 50 8 V/C 7 nA/C Response Time Difference between Outputs Input Offset Voltage Average Temperature Coefficient of Input Offset Current Common Mode Input Voltage Range VS = 6.5V 4 5 4.5 V IOUT = -320 A, VS = 4.5V 2.4 3 V Differential Input Voltage Range Output High Voltage (Either Output) V Output Low Voltage (Either Output) ISINK = 6.4 mA 0.25 0.4 V Positive Supply Current VS = 6.5V 18 32 mA Negative Supply Current VS = 6.5V -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. www.national.com 2 (Continued) 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): jA 135C/W Molded DIP (N): jA 130C/W Header (H) jA jC 165C/W (Still Air) 67C/W (400 LF/min Air Flow) 25C/W 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. Note 9: Human body model, 1.5 k 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 LM160/LM360 Electrical Characteristics LM160/LM360 AC Test Circuit DS005707-3 VIN = 50 mV FANOUT=1 FANOUT=4 V+ =+5V R=2.4k R=630 V- =-5V C=15 pF C=30 pF www.national.com 4 LM160/LM360 Schematic Diagram DS005707-1 5 www.national.com LM160/LM360 Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) Order Number LM160H/883 NS Package Number H08C Molded Dual-In-Line Package (M) Order Number LM360M or LM360MX 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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