ADI introduces non-volatile digital potentiometer to provide high frequency bandwidth and low resistance error tolerance

American Analog Devices (ADI) has released a series of non-volatile single, dual, and four-channel digital potentiometers (digiPOTs) that can improve industrial and communications control with a resistance tolerance of +/- 1% (generally) The matching degree of components in the system. These 11 new components of the AD 514x and AD 512x series of ADI also have a bandwidth of 3 MHz, which is 50% higher than similar products, enabling faster system response time. These new components also have the industry's lowest temperature coefficient performance over the widest temperature range (-40 ° C to 125 ° C).

ADI's non-volatile digiPOT series meets a wide range of system levels in single-channel, dual-channel, or quad-channel, 256 tap or 128 tap, SPI or I²C interface, leaded or lead-free packages Requirements, and all components have 4 kV ESD protection.

The main features of AD514x and AD512x digiPOTS:

Resistance tolerance: +/- 1%, under normal circumstances with better matching.

Broad bandwidth: 3 MHz, faster system response.

3 mm x 3 mm LFCSP packaging option that saves board space.

Low temperature coefficient: 35 ppm / degree Celsius, relative to extended temperature range.

The four-channel AD 5144 can be designed into the circuit together with ADI's ADP 5034 dual-channel, 3 MHz, 1200 mA buck regulator with two sets of 300 mA LDOs as a gain in power supply applications for boost / buck controllers For control.

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