Alias-free 24bit ADC aids ease of use

November 25, 2020 // By Peter Clarke
Alias-free 24bit ADC aids ease of use
Analog Devices has introduced the AD7134 analogue-to-digital converter (ADC) with 24bit resolution that does not require anti-alias filter.

The component is suitable for DC to 350kHz applications and removes the need for an anti-alias filter, and its resistive input significantly simplifies ADC drive.

The AD7134 is a quad-channel, 24-bit precision ADC with output data rate scalable from 10SPS to 1.5MSPS.  Inherent anti-aliasing up to 102 dB eliminates the need for an external anti-alias filter, thus requiring 60 fewer passive components and five fewer active components. It also saves 70% board area, relative to a typical alternative implementation. 

Asynchronous sample-rate converter, simplifies multi-device synchronization, enables user to achieve coherent sampling system with ease, and simplifies isolation requirements.

Other specifications include:

THD: -120dB typical (ideal for AC, vibration or acoustic measurements)

108dB Dynamic Range (at ODR = 374kSPS)

Multiple Linear Phase Digital Filter Options (SINC6 for low latency, FIR for passband flatness)

Offset error drift: 0.7uV/°C typical

Gain drift: 2ppm/°C typical

Related links and articles:

www.analog.com

News articles:

Analog Devices sues Xilinx over ADCs

12bit ADC is world's fastest, claims TI

12-channel analog-to-digital function modules


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