Design Ideas

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LTC Design Note: Low power op-amp: Low power filter, headphone driver revisited

With great GBW:power ratio and low voltage operation, these op-amps enable many applications, including audio & headphone drive. Read More...

Hybrid PWM/R2R DAC improves on both

DAC designs allow for a seemingly endless range of incremental improvements. Here’s another you’ll like. Read More...

Turn negative regulator “upside-down” to create bipolar supply from single source

This simple regulator hookup is perfect when you need a non-critical secondary voltage of opposite polarity. Read this new DI from Stephen Woodward. Read More...

Improve RFID by killing noise

RFID is great technology, but noisy power and other aggressors can ruin performance. Use this trick to solve the problem, for RFID or any RF or Read More...

LTC Design Note: Uncompromised clocking solution for 16bit 2.5Gsps DAC

System performance & phase noise depend on clock as much as DAC quality. Read More...

Body diodes simplify UPS & energy recovery circuits

This circuit sketch shows how to turn body-diode lemons into lemonade. Read More...

LTC Design Note: Electrolytic capacitor-based data backup power solution for a 12V system with 5V to 36V input

This module provides hold-up power in e.g., embedded systems, and can also be combined with a buck-boost module for a robust power system suitable Read More...

Capacitor self-diagnostics

Electrolytic capacitors are often a system’s weak link. This Design Idea helps you keep tabs on their condition. Read More...

LED strings driven by current source/mirror

This unusual dual-output current source can, for example, drive LED strings at any desired current ratio. Read More...

LTC Design Note: 60V Buck-Boost LED driver has up to 98% efficiency, PWM dimming, spread spectrum

LED driver design is highly efficient, flicker-free, minimizes EMI, and plays well in the automotive environment. Read More...

LTC Design Note: Ultrathin dual 2.5A or single 5A μModule regulator fits on the backside of PCBs, allowing space on the topside for digital ICs

This versatile DC-DC excels where height is limited and multiple ganging options are advantageous. Read More...

AM detector more sensitive than simple diode

A traditional diode RF detector has its limitations. This DI describes a simple way to overcome them. Read More...

RC oscillator generates linear triangle wave

This DI describes a novel way to generate a triangle wave. Read More...

Charge-pump topology doubles voltage, breaks DC path

This unusual charge-pump voltage multiplier Design Idea not only doubles the input, but has a pseudo-floating output. Read More...

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