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Fixed; Input Voltage Min: Human body model, 1. Since feedback to almost any pin of a comparator can result in oscillation, the printed-circuit layout should be engineered thoughtfully. If pins 5 and 6 are not used, they should lm11h shorted together. However, when the input signal is a voltage ramp or a slow sine wave, or if the signal source impedance is high 1 kQ to kQthe comparator may burst into oscillation near the crossing-point.
Dataeheet LMs characterized for operation over the full military range of. The offset voltages and offset currents given are the maximum values required to drive the output within a volt lm111hh either supply with 1 mA load.
Some other comparators require the power-supply bypass to be located immediately adjacent to the. Positive Feedback with High Source Resistance 9. Some other comparators require the power-supply bypass to be lo- cated immediately adjacent to the comparator. Certain sources will produce a cleaner comparator out- put waveform if a pF to pF capacitor C2 is connected directly across the input pins. dataseet
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This specification gives the range of current which must be drawn from the strobe pin to ensure the output is properly disabled. Full text of ” IC Datasheet: Typical input current is 50 pA with inputs strobed off.
Carbon, tin-oxide, and metal-film resistors have all been used successfully in comparator input circuitry. If they are connected to a trim-pot, a 0. Both the inputs and the outputs of the LM, LM or the LM can be isolated from system ground, and the output can drive loads referred to ground, the positive supply or the negative supply.
At comparison, the photodiode has less than 5 mV across it, decreasing leakages by an order of magnitude. The same applies to capacitors, pots, etc.
Although slower than the LM and LM ns response time vs 40 ns the devices are also much less prone to spurious oscilla- tions. Twisting these input leads tightly is the only second best alternative to placing resistors close to the comparator. The output can also switch voltages to 50 V at currents to 50 mA. The negative input voltage limit is equal to the negative supply voltage or 30V below the positive supply, whichever is less.
Previous 1 2 The response time specified see definitions is for a mV input step with 5 mV overdrive. The positive input voltage limit is 30V above the negative supply.
Chip One Exchange 2.
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Thus, these parameters define an error band and take into account the worst-case effects of voltage gain and Rs- Note To avoid oscillation or instability in such a usage, several.
These application notes apply specifically to the LMLM, LM, and LF families of comparators, and are applicable to all high-speed comparators in general, with the exception that not all comparators have trim pins. Bivar Inc ELM Pin connections shown on schematic diagram and typical applications are for H08 metal can package.
Conventional Positive Feedback 11 www. No abstract text available Text: The trim pins pins 5 and 6 act as unwanted auxiliary inputs.
Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. The power supply bypass capacitors should be located within a couple inches of the LM To avoidof the LM Do Not Ground Strobe Pin. Thus, these parameters define an error band and take into account the worst-case effects of voltage gain and Rs- Note 8: Search the history of over billion web pages on the Internet.
Pin connections shown on schematic diagram are for H08 package. For the most current product information visit us datasheeh www. Detector for Magnetic Transducer r. The power supply bypass capacitors should be lo- cated within a couple inches of the LM Space saving mA low-dropout linear regulator with internal current limit 3-TO 0 to