LM393 Description The LM393 consists of two independent voltage comparators. These 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. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships. Features Wide supply voltage range 8 1 Low supply current drain independent of supply SOP - 8 voltage. Low input biasing current Low input offset current Low input offset voltage Input common-mode voltage range includes GND Differential input voltage range equal to the power supply voltage 8 Low output saturation voltage 1 Output voltage compatible with TTL, MOS and CMOS logic DIP - 8 Packag e Internal Block Digram OUTPUT A 1 INVERTING INPUT A 2 NON-INVERTING INPUT A 3 GND 4 A B 8 V+ 7 OUTPUT B 6 INVERTING INPUT B 5 NON- TOP VIEW BEIJING ESTEK ELECTRONICS CO.,LTD 1 LM393 Electrical Characteristics at specified free-air temperature, Vcc = 5 V (unless otherwise noted) Symbol Parameter Test conditions* LM393 Min VIO lIO Input offset voltage Input offset current Vcc = 5 V to 30V, VIC = VICR min, Vo=1.4 V 25 °С Typ Max 2 5 Full range 5 Full range IIB Input bias current -25 Full range VICR Common-mode input voltage range** AVD Large-signal differential voltage amplification lOH High-level output current VOL Low-level output voltage 0 to Vcc-1.5 Full range 0 to Vcc - 2 25 °С 50 25 °С VOH= 30V, V ID=1V Full range IOL = 4 mA, VID=-1V Low-level output current VOL= 1.5V, VID=-1V 200 0.1 25 °С ICC Supply current RL = ∞ 25 °С VCC = 5V 25 °С VCC = 30V Full range -250 nA V 150 Full range lOL nA -400 25°С Vcc = 15 V, Vo=1.4V to 11.4 V, RL ≥ 15 kΩ to Vcc VOH=5 V, V ID=1V, 50 150 25 °С Vo=1.4 V mV 9 25 °С Vo=1.4 V Units V/mV 50 nA 1 µA 400 mV 700 6 mA 0.8 1 mA 2.5 * Full range (MIN to MAX), for the LM393 is О °С to 70 °С . 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 V CC -1.5V, but either or both inputs can go to 30V without damage. Switching Charactristics Vcc=5V, Т A=25 °C Parameter Response time Test conditions RL connected to 5V through 5.1 kΩ, CL=15pF* (See Note 1) Min Typ 100-mV input step with 5-mV overdrive 1.3 TTL-level input step 0.3 Max Units µs * 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. BEIJING ESTEK ELECTRONICS CO.,LTD 2 LM393 Typical Applications Circuit Driving TTL Driving CMOS Squarewave Oscillator Basic Comparator Pulse Generator Crystal Controlled Oscillator BEIJING ESTEK ELECTRONICS CO.,LTD 3 LM393 Ordering Information O RDERING NUM BER P ACK AG E M ARKIN G LM393 DIP - 8 / SOP - 8 LM393 Address : 6A06--6A07 Rm 6A07,Changyin Office Building ,No.88,Yong Ding Road,Hai Dian District ,Beijing Postalcode:100039 Tel: 86-010-58895780 / 81 / 82 / 83 / 84 Fax : 010-58895793 Http://www.estek.com.cn Email:[email protected] REV No:01-060820 BEIJING ESTEK ELECTRONICS CO.,LTD 4