Dual Differential Comparators LM393 General Description n n n n n Reduced VOS drift over temperature Eliminates need for dual supplies Allows sensing near ground Compatible with all forms of logic Power drain suitable for battery operation The LM393 consists of two independent precision voltage comparators with an offset voltage specification as low as 2.0 mV 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 Features drain is independent of the magnitude of the power supply n Wide supply voltage. These comparators also have a unique characteris— Voltage range: 2.0V to 36V tic in that the input common-mode voltage range includes ± 1.0V to ± 18V — single or dual supplies: ground, even though operated from a single power supply n Very low supply current drain (0.4 mA) — independent voltage. of supply voltage Application areas include limit comparators, simple analog to n Low input biasing current: 25 nA digital converters; pulse, squarewave and time delay gen± 5 nA n Low input offset current: erators; wide range VCO; MOS clock timers; multivibrators ±9m V n Maximum offset voltage: and high voltage digital logic gates. The LM393 was n Input common-mode voltage range includes ground designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the WS393MX n Differential input voltage range equal to the power supply voltage will directly interface with MOS logic where their low 150 mV at 4 mA n Low output saturation voltage,: power drain is a distinct advantage over standard comparators. n Output voltage compatible with TTL, DTL, ECL, MOS and CMOS logic systems Advantages n High precision comparators Pin Configuration DIP-8 LM393N SOP-8 LM393M Wing Shing Computer Components Co., (H.K.)Ltd. Homepage: http://www.wingshing.com Tel:(852)2341 9276 Fax:(852)2797 8153 E-mail: [email protected] 1 LM393 electrical characteristics at specified free-air temperature, Vcc = 4 V (unless otherwise noted) MIN TYP MAX UNIT PARAMETER TEST CONDITIONS Vcc = 5V to 30V 25oC 2 5 V10 input offset voltage mV VIC = VICR min, Full range 9 IIO input offset current IIB Vo =1.4V Vo =1.4V Vo =1.4V input bias current V1CR o 5 25 C Full range 150 -25 -250 o 25 C Full range nA nA -400 o 0 to Vcc-1.5 25 C Full range 0 to Vcc-2.0 Common-mode input voltage range** o Vcc = 15V AVD 50 25 C Vo =1.4Vto 11.4V Large-signal differential RL 15k to Vcc voltage amplication VOH=5V,VID=1V 25oC IOH High-level output current VOH=30V,VID=1V Full range VOL IOL=4mA,VID=1V 25oC Low-level output voltage Full range IOL 6 VOL=1.5V,VID=1 V 25oC Low-level output current Icc 50 V 200 V/m V 0.1 50 nA 1 150 400 uA mV 700 mA Vcc=5V 25oC 0.8 1 mA Supply current Vcc=30V Full range 2.5 *Full range(MIN to MAX),for the LM393 is 0 to 70 .All characteristics are measured with zero common-mode input voltage unless otherwise speified. **The voltage at either input or common-mode should not be 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 RL= switching characteristics ,Vcc=5V,TA=25 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Response time RL connected to 5V 100mV input step with us 1.3 through 5.1K 5-m V overdrive CL=15pF see Note1 TTL-level input step 0.3 * CL includes probe and jig capacitance NOTE1: The response time specified is the interval between the input step function and the instant when the output crosses 1.4V. 2 LM393 3 2 1 120 PAD LOCATION 120 4 8 7 5 6 Chip size 1.3mm x 1.2mm 1 2 3 4 5 6 7 8 Physical Dimensions Coordinates mkm X Y 1074 919 646 967 240 967 100 534 240 100 646 100 1074 148 1074 530 Pad Name Pad N #1 #1 #1 GND #2 #2 #2 VCC OUT ININ+ IN+ INOUT . inches (millimeters) unless otherwise noted (Continued) SO-8 LM393M 3