LM2903D

TIGER ELECTRONIC CO.,LTD LM2903N/D Dual Differential Comparators DESCRIPTION： Outline Drawing The LM2903 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 v o ltag e. LM2903 LM2903N DIP8 FEATURE： Wide supply voltage range： le supply operation： to sing 2V 36V dual supply operation：±1V to ±18V LM2903D Very low supply current drain (0.8m,A) independent of supply voltage(2.0mW/comparator at 5.0 VDC) Low input biasing current：25nA Low input offset current： 0nA; Low input offset voltage： 5. 5.0mV Input common-mode voltage range includes ground SOP8 Differential input voltage range equal to the power supply voltage Output voltage compatible with TTL,DTL,ECL,MOS and CMOS logic systems. BLOCK DIAGRAM PIN CONFIGURATION 1/4 LM2903N/D 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（-） OUT1 Vcc ABSOLUTE MAXIMUM RATINGS Characteristics Single supply voltage Supply Voltage Dual supplies voltage Differential Input Voltage Input common-mode voltage Output short-circuit to ground Input Current Maximum junction temperature DIP8 Power Dissipation SOP8 Operating Temperature Range Storage Temperature Range Symbol Vcc VIDR VICR IOG IIN TJ PD Tamb Tstg -20 -65 Min. Max. ±18 36 36 36 20 50 125 570 300 +85 150 Unit V V V mA mA ℃ mW ℃ ℃ -0.3 ELECTRICAL CHARACTERISTICS （Unless otherwise specified :Vcc=5V，Tamb=25℃） 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 Test conditions 0℃ ≤ Ta ≤ 70℃ 0℃ ≤ Ta ≤ 70℃ 0℃ ≤ Ta ≤ 70℃ 0℃ ≤ Ta ≤ 70℃ RL=∞ dual comparator RL=∞，dual comparator Vcc=30V RL ≥ 15KΩ，Vcc=15V VIN=TTL Logic Swing ，VREF=1.4V ， VRL=5.0V， RL=5.1KΩ VRL=5.0V， RL=5.1KΩ Symbo VIO IIO IIB VICR Icc Gv tRES tRES VID ISINK 50 0 0 Mi Typ. ±1.0 Max ±5.0 ±9.0 ±5.0 ±50 ±150 25 250 400 Vcc-1.5 Vcc-2.0 0.4 1.0 2.5 200 300 1.3 Vcc 6.0 16 130 400 700 0.1 1000 nA mV Unit mV nA nA V mA V/mV ns ns V mA Output Leakage Current VIN（-）≥ 1.0V， IN（+）=0V， ≤ 1.5V V Vo VIN（-）≥ 1.0V， IN（+）=0V，SINK ≤ 4.0mA V I VIN -） 1.0V， IN +） ，SINK ≤ 4.0mA VSAT （≥ V （ =0V I 0℃ ≤ Ta ≤ 70℃ VIN（+）≥ 1.0V，VIN（-）=0V，Vo=5.0V IOL VIN（+）≥ 1.0V，VIN（-）=0V，Vo=30V 0℃ ≤ Ta ≤ 70℃ 2/4 LM2903N/D APPLICATION CIRCUIT LM2903 LM2903 Applied single power Supply Applied split power supplies LM2903 LM2903 3/4 LM2903N/D TYPICAL CHARACTERISTICS CURVES: 4/4