Circuits & Schematics: Design - 3

21. Active Antialias Filter for 24-bit ADC Features Low Distortion, High SNR
    Circuits Analogue Design Audio Measurement Analog Devices LT6202 LTC2380-24 LTC6363 LTC6655
    .. Hoover, Analog Devices Electronic Design A high-resolution SAR ADC often needs a higher-order antialiasing filter, such as the third-order version ...
    12-07-2020

22. SPI2CF - WLAN for AVR. Part 1
    Circuits Wireless Microcontrollers Usage
    .. while leaving much of the AVR functionality for other use and allowing fast and reliable WLAN data transfers. The final design was based on a PRISM chipset based compact flash WLAN card which is connected to the AVR CPU using a ...
    30-06-2010

23. Negative Linear Regulator Features 0.8 µV RMS Noise and 74 dB Power Supply Rejection Ratio at 1 MHz
    Circuits Supply Analog Devices LT3015 LT3090 LT3094 LT8582
    .. Zhu, Analog Devices Design Note Low dropout (LDO) linear regulators have been widely used in noise-sensitive applications for decades. ...
    13-01-2020
24. Single-Chip Circuit Delivers Direction Information In Encoders
    Circuits Measurement Texas Instruments SN74HC14 SN74HC74
    .. Nopper Electronic Design Incremental-rotation or linear encoders are very common, but normally they do not provide a direction signal. ...
    30-12-2019
25. Use a Current Mirror to Control a Power Supply
    Circuits Analogue Design Supply NXP BCV61
    .. mirror (Figure 2). Figure 2. This voltage-controlled power supply uses a current mirror. The precision you get from this design is tied to the precision of the current mirror you’ll use. If you decide for the Widlar basic ...
    14-01-2020
26. JFET Follower Amplifier Cancels Distortion
    Circuits Analogue Design ON Semiconductor BC850 BC860
    .. is a portion of Q3’s emitter current. This can be helpful when Q1’s quiescent current is determined by other design objectives for example, noise performance. Figure 3. If the ratio of R3/R4 is changed, the required value of ...
    24-12-2019
27. Use A DAC To Bias Your Varactor Diode
    Circuits Wireless Radio
    .. for offset voltage calibration elsewhere in the circuit, or it could be turned off when it isn’t in use. Space and design time can be saved by avoiding having to set up separate biasing schemes. Some DACs, such as the MCP4728, also ...
    29-02-2012
28. Simple RC Cars - Single channel Transmitters and Super Regenerative Receivers at 27 MHz and 49 MHz
    Circuits RC Modeling
    .. is the 9 volt GS transmitter which does not use a crystal. This clever design allows only two transistors to generate both the carrier and and the modulation. Shown below at 27MHz 40MHz ...
    08-03-2005
29. Simple Interface Connects Sensor Output To Microcontroller
    Circuits Microcontrollers Usage
    .. that need transistor-transistor logic (TTL) or CMOS signals, which can make such sensors difficult to use. This design (see the figure) provides a simple solution to the interface problem when the sensor uses an NPN output stage ...
    23-02-2012
30. Op Amp Linearizes Attenuator Control Response
    Circuits Analogue Design Analog Devices SSM2164
    .. 10 to 20 mV when you sweep the gain through a 70-dB range. The noise and distortion performance is excellent, because the design uses the gain cells in the standard configuration in the SSM2164 data sheet. Materials on the topic Datasheet ...
    30-06-2020

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