LESHAN RADIO COMPANY, LTD. Dual Differential Comparators LR393 DESCRIPTION: The LR393 consists of two independent voltage comparators with an offset voltage specification as low as 2.0mV max. for two comparators which were designed specifically to operation from a single power supply over a wide range of voltages. Operate from split power supplies is also possible,and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage. DIP-8 SOP-8 FEATURE:: z Wide supply voltage range: single supply operation: 2V to 36V, dual supply operation: f1V to f18V z Very low supply current drain (0.8mA) independent of supply voltage(2.0mW/comparator at 5.0 VDC) z Low input biasing current: 25nA z Low input offset current: 5.0nA; Low input offset voltage: 5.0mV z Input common-mode voltage range includes ground z Differential input voltage range equal to the power supply voltage z Output voltage compatible with TTL,DTL,ECL,MOS and CMOS logic systems. ORDERING INFORMATION BLOCK DIAGRAM VCC + Input − Input Output Package LR393 DIP-8 LR393D R2 2.1 k Q3 Device SOP-8 Q4 R4 Q5 Q6 Q14 2.0 k PIN CONFIGURATION F1 Output 1 1 8 Vcc -Input 1 2 7 Output 2 Q10 Q1 Q8 Q9 Q16 Q12 Q2 R1 4.6 k Q15 − + +Input 1 3 Q11 GND 4 NOTE: Diagram shown is for 1 comparator 6 -Input 2 − + 5 +Input 2 (Top View) 1/6 LESHAN RADIO COMPANY, LTD. LR393 PIN DESCRIPTIONS No 1 2 3 4 Description Output 1 -Input1 +Input1 Ground Symbol OUT1 IN1˄-˅ IN1˄+˅ GND No 5 6 7 8 Description +Input2 -Input2 Output 2 Supply Voltage Symbol IN2˄+˅ IN2˄-˅ OUT2 Vcc ABSOLUTE MAXIMUM RATINGS Characteristics Symbol Single supply voltage Dual supplies voltage Differential Input Voltage Input common-mode voltage Output short-circuit to ground Input Current Maximum junction temperature Power Dissipation Operating Temperature Range Storage Temperature Range Supply Voltage Value Max r18 36 36 36 20 50 125 570 70 150 Min Vcc VIDR VICR IOG IIN TJ PD Tamb Tstg -0.3 0 -65 Unit V V V mA mA ć mW ć ć ELECTRICAL CHARACTERISTICS˄Un less otherwise specified :Vcc=5VˈTamb=25ć˅ Characteristics Input Offset Voltage Input Offset Current Input Bias Current Input Common-mode Voltage Range Supply Current Voltage Gain Large Signal Response Time Response Time Input Differential Voltage Output Sink Current output saturation voltage Output Leakage Current Test conditions 0ć d Ta d 70ć 0ć d Ta d 70ć 0ć d Ta d 70ć 0ć d Ta d 70ć RL=f dual comparator RL=fˈdual comparator Vcc=30V RL t 15K:ˈVcc=15V VIN=TTL Logic SwingˈVREF=1.4Vˈ VRL=5.0Vˈ RL=5.1K: VRL=5.0Vˈ RL=5.1K: Symbo Mi VIO IIO IIB VICR 0 0 Icc Gv 50 Typ. r1.0 Max r5.0 r9.0 r5.0 r50 r150 25 250 400 Vcc-1.5 Vcc-2.0 0.4 1.0 2.5 200 tRES 300 tRES VID ISINK 1.3 VIN˄-˅t 1.0VˈVIN˄+˅=0VˈVo d 1.5V VIN˄-˅t 1.0VˈVIN˄+˅=0VˈISINK d 4.0mA VIN˄-˅t 1.0VˈVIN˄+˅=0VˈISINK d 4.0mA VSAT 0ć d Ta d 70ć VIN˄+˅t 1.0VˈVIN˄-˅=0VˈVo=5.0V IOL VIN˄+˅t 1.0VˈVIN˄-˅=0VˈVo=30V 0ć d Ta d 70ć 16 150 mV nA nA V mA V/mV ns Vcc 6.0 Unit ns V mA 400 700 mV 0.1 1000 nA 2/6 LESHAN RADIO COMPANY, LTD. LR393 APPLICATION CIRCUIT +15 V Vin R1 8.2 k R4 220 k R1 D1 6.8 k R2 R5 220 k * LR393 +VCC ) 10 k * 15 k R3 10 M LR393 Vin VCC ) D1 prevents input from going negative by more than 0.6 V. Vin(min) [ 0.4 V peak for 1% phase distortion (). Figure 2. Zero Crossing Detector (Split Supply) VCC 51 k VCC R LR393 + LR393 VC C + VO VO + Vref + 51 k RL − − RL 10 k 0.001 F LR393 51 k t VCC − − VEE Figure 1. Zero Crossing Detector (Single Supply) 1.0 M VO −VEE R1 + R2 = R3 R5 for small error in zero crossing. R3 ≤ 10 VCC Vin(min) Vin 10 k ‘‘ON’’ for t tO + t where: Vref ) t = RC ȏ n ( VCC VCC VO 0 t Figure 3. Free−Running Square−Wave Oscillator Vin Vref 0 VO 0 VC 0 tO Vref ȏ t Figure 4. Time Delay Generator 3/6 LESHAN RADIO COMPANY, LTD. LR393 TYPICAL CHARACTERISTICS CURVES Figure 1. Supply Current vs Supply Voltage Figure 2. Input Current vs Supply Voltage Figure 3. Output Saturation Voltage vs Sink Current Figure 4. Response Time for Various Input Overdrive-Negative Transition Figure 5. Response Time for Various Input Overdrive-Positive Transition 4/6 LESHAN RADIO COMPANY, LTD. LR393 Mechanical Dimensions DIP-8 Unit: mm f e f e e e f f e ¶hf f 0$; 5 f 0,1 5/6 LESHAN RADIO COMPANY, LTD. LR393 Mechanical Dimensions (Continued) f e f f e Unit: mm f f SOP-8 e e ' f f ¶ ' e fe 5 5 f e fe 6/6