LM393

DUAL VOLTAGE COMPARATOR FEATURES ● ● ● ● ● ● ● ● ● Single Supply Operation : 2V to 36V Dual Supply Operation : ±1V to ±18V Allow Comparison of Voltages Near Ground Potential Low Current Drain 800㎂ Typ Compatible with all Forms of Logic Low Input Bias Current 25㎁ Typ Low Input Offset Current ±5㎁ Typ Low Offset Voltage ±1㎷ Typ Moisture Sensitivity Level 3 Out LM393 SOP 8 / DIP 8 Pin Configulation 1 2 A IN1 (+) 3 Gnd ++ B -6 IN2 (-) IN2 (+) 8 7 Vcc SOP-8 PKG IN1(-) Out2 4 5 DIP-8 PKG ORDERING INFORMATION Device LM393D LM393N DESCRIPTION Package 8 SOP 8 DIP The LM393 series consists of two independent precision voltage comparators with an offset voltage specification as low as 2.0㎷ max. for two comparators which were designed specifically to operate from a single power supply over a wide range of voltages. Operation 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. The LM393 series was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the LM393 series will directly interface with MOS logic where their low power drain is a distinct advantage over standard comparators. EQUIVALENT CIRCUIT V+ 3.5㎂ 100㎂ 3.5㎂ 100㎂ Q2 Q1 +INPUT -INPUT Q5 Q3 Q4 OUTPUT Q8 Q7 Q6 (1 COMPARATOR ONLY) 2008 - Ver 1.0 HTC -1- DUAL VOLTAGE COMPARATOR ABSOLUTE MAXIMUM RATINGS CHARACTERISTIC Power Supply Voltage Differential Input Voltage Input Voltage Output Short Circuit to GND Power Dissipation Operating Temperature Range Storage Temperature Range PD TOPR TSTG SYMBOL VCC VI(DIFF) VI VALUE ±18 or 32 32 -0.3 to +32 Continuous 570 0~+70 -65 to +150 LM393 UNIT V V V ㎽ ℃ ℃ Electrical characterisitics at specified free-air temperature, VCC=5V(unless otherwise noted) PARAMETER VIO Input Offset Voltage TEST CONDITIONS* VCC=5V to 30V VIC=VICR MIN, VO=1.4V 25℃ Full Range LM393 MIN TYP 2 MAX 5 9 50 150 -250 -400 UNIT ㎷ ㎁ ㎁ V IIO 25℃ 5 VO=1.4V Full Range Input Offset Current 25℃ IIB -25 VO=1.4V Full Range Input Bias Current 0toVCC-1.5 VICR 25℃ Common-Mode Input Voltage 0toVCC-2 Full Range Range** AVD VCC=15V, VO=1.4V to 11.4V, 25℃ 50 200 Large-Signal Differential RL ≥15㏀ to VCC Voltage Amplification 0.1 IOH VOH=5V, VID=1V 25℃ VOH=30V, VID=1V Full Range High-Level Output Current VOL 25℃ 150 IOL=4㎃, VID=-1V Full Range Low-Level Output Voltage IOL VOL=1.5V, V ID=-1V 25℃ 6 Low-Level Output Current 25℃ 0.8 ICC VCC=5V RL=∞ Full Range VCC=30V Supply Current * Full range (MIN to MAX), for LM393 is 0℃ to 70℃. All characteristics are measured with zero common-mode input voltage unless otherwise specified. ** The voltage at either input or common-mode should not be allowed to go negative by more than 0.3V. The upper end of the common-mode voltage range is VCC -1.5V, but either or both inputs can go to 30V without damage. V/㎷ 50 1 400 700 ㎁ ㎂ ㎷ ㎃ 1 2.5 ㎃ Switching characteristics, VCC=5V, T A=25℃ PARAMETER RL Connected to 5V Response Time Through 5.1㏀, CL =15㎊*(See Note 1) TEST CONDITION 100-㎷ Input Step with 5-㎷ Overdrive TTL-Level Input Step LM393 MIN TYP 1.3 0.3 MAX UNIT ㎲ * CL includes probe and jig capacitance. Note 1 : The response time specified is the interval between the input step function and the instant when the output crosses 1.4V. HTC -2- DUAL VOLTAGE COMPARATOR TYPICAL PERFORMANCE CHARACTERISTICS LM393 INPUT CURRENT 80 VIN(CM)=10VDC RIN(CM) IN-INPUT CURRENT(㎁) DC 60 TA=-55℃ TA=0℃ V0-SATURATION VOLTAGE(V DC) 1.0 10 OUTPUT SATURATION VOLTAGE OUT OF SATURATION 40 TA=+125℃ 0.1 TA=-55℃ 20 TA=+125℃ 0 0 10 20 TA=+25℃ TA=+70℃ 0.01 TA=+25℃ 0.001 30 40 0.01 0.1 1.0 10 100 V+-SUPPLY VOLTAGE-V DC IO-OUTPUT SINK CURRENT(㎃) RESPONSE TIME FOR VARIOUS INPUT OVERDRIVESNEGATIVE TRANSITION RESPONSE TIME FOR VARIOUS INPUT OVERDRIVESPOSITIVE TRANSITION 6 OUTPUTVOLTAGE 5 V0-V 4 3 2 1 0 VIN-㎷ 0 -50 -100 OVERDRIVE TA=25℃ 100㎷ 5.1K VIN + VOUT OUTPUTVOLTAGE 5㎷=INPUT OVERDRIVE 20㎷ +5V 6 INPUT OVERDRIVE=100㎷ 5 4 V0-V 3 2 1 INPUT VOLTAGE 0 VIN-㎷ 100 50 0 TA=25℃ OVERDRIVE VIN + 5.1K VOUT 20㎷ 5㎷ +5V INPUT VOLTAGE 0 0.5 1.0 1.5 2.0 0 0.5 1.0 1.5 2.0 TIME-㎲ TIME-㎲ HTC -3- DUAL VOLTAGE COMPARATOR TYPICAL APPLICATIONS V+ 100㏀ +vc FREQUENCY CONTROL VOLTAGE INPUT 10 + 0.01㎌ V+/2 20㏀ 50㏀ V+=+30V CC +25㎷DC≤VC≤+50V DC 700Hz≤f ≤100kHz O + V+/2 OUTPUT2 20㏀ +VREF LOW 0.01㎌ +VIN ~ 2Rs + 500㎊ 100㏀ 3.0㏀ 5.1㏀ + OUTPUT1 Rs V+ 3.0㏀ 2Rs +VREF HI + 10㏀ LM393 V+(12V ) DC LAMP 2N2222 - TWO-DECADE HIGH-FREQUENCY VCO +5VDC LIMIT COMPARATOR 360 +VREF4 + 100K -5VDC 100 + +5VDC +VREF 360 (-1.4VDC) V0 0 - 10㏀ -12V -12VDC + 100K 100 V0 +5VDC 360 V+ +VREF3 TTL-TO-MOS LOGIC CONVERTER +VREF2 200㏀ + 100K 100 0.1㎌ +5VDC 360 200㏀ CRYSTAL f=100㎑ + V0 V+ 0 100㏀ 2.0㏀ +VREF1 + 100K 100 VISIBLE VOLTAGE INDICATOR CRYSTAL-CONTROLLED OSCILLATOR HTC -4-