Circuits & Schematics Linear Technology - 5

41. Frequency dithering enhances high-performance ADCs
    Circuits Linear Technology LTC1799
    Since the late 1970s, designers have successfully improved the effective resolution and spurious performance of A/D converters by adding dither uncorrelated noise to a converter's input and then using DSP techniques to average out noise from ...
    05-06-2018
42. Simple Generator Provides Very-Low-Frequency/Distortion Sine and Square Waves
    Circuits Analogue Design Oscillators Linear Technology LTC6244HV
    Jim Tonne Electronic Design With a handful of low-leakage passive components and two high-impedance op amps, you can build a sine/square-wave generator with output period of a minute and more. The circuit of Figure 1 generates sinusoids down to ...
    02-04-2018

43. 170W Voltage Doubler in 23mm x 16.5mm Package
    Circuits Supply Linear Technology LTC7820
    Ya Liu, Jian Li, Jeff Zhang and Brian Lin, Analog Devices Design Note 571 Introduction For high voltage input/output applications, inductorless, switched capacitor converters (charge pumps) significantly improve efficiency and reduce solution size ...
    25-03-2018
44. Reference Filter Increases 32-Bit ADC SNR by 6dB
    Circuits Linear Technology DN568
    Attaining optimal SNR performance from an ADC isn’t just a matter of providing a low noise signal to the ADC’s input. Providing a low noise reference voltage is just as important. While reference noise has no effect at zero-scale, at ...
    24-03-2018
45. Actively driven ferrite core inductively cancels common-mode voltage
    Circuits Analogue Design Linear Technology LT1797
    An earlier Design Idea illustrated one approach to that traditional headache for the analog designer: the dreaded ground loop ( Reference 1 ). That Design Idea described a simple and efficient multichannel circuit. But it’s an asymmetrical ...
    22-02-2018
46. Supercapacitor-Based Power Backup Prevents Data Loss in RAID Systems
    Circuits Supply Linear Technology LTC3625 LTC4412 LTM4616
    Jim Drew, Linear Technology Design Note 487 Introduction Redundant arrays of independent disks, or RAID, systems, by nature are designed to preserve data in the face of adverse circumstances. One example is power failure, thereby threatening data ...
    15-02-2018
47. Simple nanosecond-width pulse generator provides high performance
    Circuits Analogue Design Oscillators Linear Technology LT1721
    If you need to produce extremely fast pulses in response to an input and trigger, such as for sampling applications, the predictably programmable short-time-interval generator has broad uses. The circuit of Figure 1, built around a quad high-speed ...
    08-02-2018
48. Pulse generator has low top-side aberrations
    Circuits Analogue Design Oscillators Linear Technology LT1394
    Impulse-response and rise-time testing often require a fast-rise-time source with a high degree of pulse purity. These parameters are difficult to achieve simultaneously, particularly at subnanosecond speeds. The circuit in Figure 1, derived from ...
    08-02-2018
49. Add Simple Temperature Monitoring To Battery-Management Systems
    Circuits Automotive Analogue Design Measurement Power Linear Technology LT6001 LTC6802
    Environmental concerns are spurring the development of clean transportation alternatives. Most popular are full electric and hybrid electric motor vehicles, which use stacks of lithium-ion battery cells as the electric power source. To ensure ...
    23-01-2018
50. Energy Harvester Produces Power from Local Environment, Eliminating Batteries in Wireless Sensors
    Circuits Supply Linear Technology LTC3588-1
    Jim Drew, Linear Technology Design Note 483 Introduction Recent advances in ultralow power microcontrollers have produced devices that offer unprecedented levels of integration for the amount of power they require to operate. These are systems on a ...
    29-11-2017

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