Presto Engineering has taped out two advanced intellectual properties (IPs) in collaboration with X-FAB Silicon Foundries, delivering near field communication (NFC) and analog-to-digital converter (ADC) silicon building blocks for sensing applications in industrial IoT, healthcare, smart packaging, and secure logistics. These macro IPs, comprised of an ultra-low-power NFC analog front end with power management and a sigma-delta ADC, are available in X-FAB’s IP catalog.
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These IPs are available for integration into new ASIC designs. The tape-outs were completed using X-FAB’s multi-project wafer (MPW) on 80-nm analog/mixed-signal process. The companies said this provides an industrial-grade path to volume production.
The NFC front-end IP is compliant with ISO/IEC 14443 Type A and includes power management functions for battery-less operation and is wireless charging ready. It enables autonomous sensor deployments with sub-1-μA standby current for temperature tracking or healthcare monitoring applications. Key features include on-chip energy harvesting, automatic switching between NFC power and a 2.7–5.5-V battery, and data rates up to 848 Kbits/s. In addition, it also supports operating distances of up to 10 cm from the reader with a credit-card-sized antenna. Applications include cold-chain temperature tags, smart healthcare patches, and autonomous sensors.
The Sigma-Delta ADC IP, with programmable data rates of up to 100 kilosamples/second (ksps), delivers high precision with an effective number of bits (ENOB) of up to 20 bits at 1 ksps (and 17 bits at 100 ksps), with flexible power-performance scaling. Key features include an integrated programmable gain amplifier and anti-aliasing filter to provide a high-impedance input, amplify the input signal, and filter unwanted frequency components as well as a digital block. It provides configurable Sinc3/Sinc4 digital output filters and dual power modes (40 mW max in high-performance and < 0.5 mW in low power). Applications include electrochemical measurements, weighing systems, industrial process control, and audio using programmable sample rate.
Presto offers a library of silicon building blocks and platforms for integration into full-custom ASICs. These IP platforms target a range of applications, including medical wearables and in-vitro diagnostics; industrial IoT and surveillance systems; smart packaging and secure logistics; and intelligent transportation and mobility.
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