Specifications Response Time 0.4 us Output Bus Open Drain Supply Min 2 Volt Supply Max 36 Volt Channels 2 Channels Offset Voltage max, 25C 5 mV Output Current 16 mA Input Range Vcm to V- Supply Current Per Channel 0.2 mA PowerWise Rating 3 80 uA x us Ma...
LM293: Specifications Response Time 0.4 us Output Bus Open Drain Supply Min 2 Volt Supply Max 36 Volt Channels 2 Channels Offset Voltage max, 25C 5 mV Output Current 16 mA ...
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Response Time | 0.4 us |
Output Bus | Open Drain |
Supply Min | 2 Volt |
Supply Max | 36 Volt |
Channels | 2 Channels |
Offset Voltage max, 25C | 5 mV |
Output Current | 16 mA |
Input Range | Vcm to V- |
Supply Current Per Channel | 0.2 mA |
PowerWise Rating 3 | 80 uA x us |
Max Input Bias Current | 400 nA |
Special Features | Undefined |
Temperature Min | -25 deg C |
Temperature Max | 85 deg C |
Function | Comparator |
View Using Catalog |
Rating | Symbol | Value | Unit |
Power Supply Voltage | VCC | +36 or ±18 | Vdc |
Input Differential Voltage Range | VIDR | 36 | Vdc |
Input Common Mode Voltage Range | VICR | 0.3 to +36 | Vdc |
Output Short CircuittoGround Output Sink Current (Note 1) |
ISC ISink |
Continuous 20 |
mA |
Power Dissipation @ TA = 25°C Derate above 25°C |
PD 1/RqJA |
570 5.7 |
mW mW/°C |
Operating Ambient Temperature Range LM293 LM393, 393A LM2903 LM2903V |
TA | 25 to +85 0 to +70 40 to +105 40 to +125 |
°C |
Maximum Operating Junction Temperature LM393, 393A, 2903, LM2903V LM293 |
TJ(max) | 125 150 |
°C |
Storage Temperature Range | Tstg | 65 to +150 | °C |
The LM293 series 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 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.
Application areas include limit comparators, simple analog to digital converters; pulse, squarewave and time delay generators; wide range VCO; MOS clock timers; multivibrators and high voltage digital logic gates. The LM293 series was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the LM193 series will directly interface with MOS logic where their low power drain is a distinct advantage over standard comparators.
The LM293 and LM2903 parts are available in National's innovative thin micro SMD package with 8 (12 mil) large bumps.
Design Tools
Title | Size in Kbytes | Date | |||
Amplifiers Selection Guide software for Windows | 8 Kbytes | 6-Mar-2007 | View |
If you have trouble printing or viewing PDF file(s), see Printing Problems. |
More Application Notes
Title | Size in Kbytes | Date | |
AN-1836: Application Note 1836 LMH1251 Evaluation Board Users Guide v2.0 | 2267 Kbytes | 24-Jun-08 | Download |
If you have trouble printing or viewing PDF file(s), see Printing Problems. |