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Circuits & Schematics - 11

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  1. LED drivers have lots of features and require plenty of external components. When your application requires no PWM (pulse-width-modulated) dimming or controlled frequency operation, your primary concern may be that too much current could damage or ...
    18-07-2023
  2. High-speed DACs offer differential outputs, but, for low-end ac applications or high-precision level-setting applications, a single-ended current-output DAC with a differential-conversion circuit provides a novel approach to generating ...
    13-07-2023
  1. The schematic in Figure 1 shows a way to increase the power available from a current-limited 5 V supply by adding power from a 5 V supply. The dc/dc converter generates a single 12 V, 150-mA (1.8 W) output from two regulated and current-limited ...
    12-07-2023
  2. Introduction In some applications it is necessary to transmit square waves across a long cable. However, long cables typically have high capacitance, which can significantly affect the signal’s wave shape. As such, the signal’s ...
    10-07-2023
  3. Besides its mind-boggling simplicity and programmable resolution, the chief attribute of the Shannon decoder DAC (SD) is speed ( Ref. 1 ), converting a serial n-bit digital stream into an analog signal in just nT seconds where T = 1 bit time. Of ...
    06-07-2023
  4. Introduction High voltage buck DC/DC controllers such as the LTC3890 (dual output) and LTC3891 (single output) are popular in automotive applications due to their extremely wide 4 V to 60 V input voltage range, eliminating the need for a snubber ...
    05-07-2023
  5. It’s just an unavoidable fact: electronic components’ parameters drift with temperature. Even the most stable voltage references, op amps, crystal oscillators, etc., have non-zero temperature coefficients. These effects can be mitigated ...
    04-07-2023
  6. If you need to quickly and inexpensively convert a binary number into a proportional analog voltage, one cool (and easily remoted) way to do it is: 1. Serialize the number into a bit stream with the LSB output first, 2. input the resulting stream ...
    29-06-2023
  7. The circuit in this Design Idea uses an intrinsic property of collector voltages in one-transformer pushpull dc/dc converters: They have a swing of twice the supply voltage. When you implement these circuits with an NPN device, the collector swings ...
    29-06-2023
  8. Circuits Oscillators Measurement Analog Devices LT1004 LT1006 LT1013 LT1226 LT1228
    Filter, audio, and RF-communications testing often require a random noise source. Figure 1’s circuit provides an RMS-amplitude regulated noise source with selectable bandwidth. RMS output is 300 mV with a 1 kHz to 5 MHz bandwidth, selectable ...
    27-06-2023
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