lmv393-sm1-t Unisonic Technologies, lmv393-sm1-t Datasheet
lmv393-sm1-t
Related parts for lmv393-sm1-t
lmv393-sm1-t Summary of contents
Page 1
... ORDERING INFORMATION Ordering Number Normal Lead Free Plating LMV393-D08-T LMV393L-D08-T LMV393-S08-R LMV393L-S08-R LMV393-S08-T LMV393L-S08-T LMV393-SM1-R LMV393L-SM1-R LMV393-SM1-T LMV393L-SM1-T www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd LINEAR INTEGRATED CIRCUIT *Pb-free plating product number: LMV393L Package Packing DIP-8 Tube SOP-8 Tape Reel SOP-8 ...
Page 2
... LMV393 PIN CONFIGUREATION BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT QW-R104-004 ...
Page 3
... LMV393 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Differential Input Voltage Voltage on any pin (referred to V- pin) Junction Temperature Operating Temperature Storage Temperature Note Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ...
Page 4
... APPLICATION CIRCUITS Basic Comparator A basic comparator circuit can convert analog signals to a digital output. The UTC LMV393 needs a pull-up resistor connected to the positive supply voltage which can make output switch properly. So that when the internal output transistor is off, the output voltage will be pulled up to the external positive voltage. ...
Page 5
... LMV393 APPLICATION CIRCUITS(Cont.) When V > V the output voltage is low close to ground. It can be presented upper trip voltage V is defined as a2 The total hysteresis provided by the network is defined as: To assure that the comparator will always switch correctly, the resistors values should be chosen as follow: R < ...
Page 6
... LMV393 APPLICATION CIRCUITS(Cont.) Square Wave Oscillator Comparators are suitable for oscillator applications. This application uses the minimum number of external components. The output frequency is set by the RC time constant which is determined by capacitor C1 and the resistor in the negative feedback R 4 rate and limit the maximum operating frequency. ...
Page 7
... LMV393 APPLICATION CIRCUITS(Cont.) Free Running Multivibrator This oscillator circuit can generate a train of stable clock for precise timekeeping applications. We can obtain it by using a resonator as the feedback component. A quartz crystal in its series-resonant mode can make the circuit oscillating well. For the comparator be switching symmetrically about +V equal ...
Page 8
... LMV393 APPLICATION CIRCUITS(Cont last, we get These terms have a slight error because V drop to − max − − 2 − − 2 And that’s the exact value we get. ...
Page 9
... LMV393 APPLICATION CIRCUITS(Cont.) Positive Peak Detector: Positive peak detector is basically the comparator operated as a unit gain follower with a large holding capacitor from the output to ground. Additional transistor is added to the output to provide a low impedance current source. When the output of the comparator goes high, current is passed through the transistor to charge up the capacitor. ...
Page 10
... LMV393 TYPICAL CHARACTERISTICS Output Voltage vs Output Current at 5V Supply 1700 1600 1500 1400 1300 1200 +85℃ 1100 1000 900 800 700 600 500 400 300 200 100 Output Current (mA) Input Bias Current vs Supply Voltage 250 V =0V IN 200 +25℃ 150 ...
Page 11
... LMV393 TYPICAL CHARACTERISTICS (Cont.) UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury ...