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acam - Solutions in Time

Time - the most universal of all physical quantities -  offers fantastic possibilities to solve difficult measurement tasks elegantly. Nearly all physical units like position, weight, pressure and temperature can be captured by time measurement.


Based on digital TDC-technology (TDC = Time -to-Digital Converter), acam's products transfer the manifold potential of precise time measurement to consumer, automotive, industry and scientific applications and offer professional solutions for difficult measurement tasks.


GP30Y - The next generation SoC for ultrasonic flow meters

Opens internal link in current windowDATA SHEET (VOL. 1 + VOL. 2) IS NOW RELEASED


Opens internal link in current windowDATA SHEET (DEVELOPMENT SYSTEM FOR GP30)


GP30Y (final) is the next step in ultrasonic flow metering. It drastically simplifies the design of ultrasonic heat and water meters and is the necessary step for compact energy-saving ultrasonic water meters. The ultra-low-current capabilities allow the use of standard 2/3 AA or AA lithium batteries at 6-8Hz measuring frequency as needed for water meter.


The GP30Y is a system-on-chip that allows you to perform all measurement tasks in one IC.



  • Easy-to-adapt two-chip solution for ultrasonic heat, water and gas meters (GP30Y + simple µP)
  • Single-chip solution for many industrial applications or pure flow meter parts
  • All flow and temperature calculations are done by GP30Y
  • MID compliance without external µP
  • External µP for interfaces (e.g. LCD, wireless, etc.) and other general-purpose tasks
  • Enables use of the same external µP and software for mechanical and ultrasonic heat and water meters
  • ultra low power 32-Bit µP (77 µA/MHz)

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PICOCAP Capacitance-to-Digital Converters

acam's PICOCAP product line of capacitance-to-digital converters convinces in many aspects - resolution (up to 18 bit or 23 aF rms@ 10pF), low power (low as a 2 µA operating), speed (up to 500 kHz), flexible capacitance range from 1 pF to 100 nF, and many more.

On top of that, a number of new features have been added, e.g. the internal reference capacitance to save external components or the newly added EEPROM for storing user calibration data. Further, improvements for the operation with humidity and MEMS sensors have been made.

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The actual Product Overview for download: Get the latest overview of acam's innovative integrated circuits for ultra-precise time interval measurement and related products.


Opens external link in new windowEnglish version (Release 2014)

Opens external link in new windowChinese version (Release 2013)

What's new!

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March 2015

Visit us at SENSOR + TEST 2015

19 - 21 May 2014, Messezentrum Nürnberg, Germany [more]

March 2015

Visit us at ISH China Beijing

13 - 15 May 2015, Beijing, China [more]

December 2014



December 2014

acam management statement about the acquisition by ams AG

Stutensee, the 5th of December 2014[more]

March 2015


Turbolader-Drehzahl auch bei hohen Temperaturen messen [more]

March 2015


MEMS and sensors ASIC maker ACAM acquired by AMS Austrian company AMS, a provider of sensors and analog IC solutions, has acquired German-based...[more]

February 2015


Ultraschall-Durchflusssensoren für den Massenmarkt [more]

January 2015


Ultraschallzähler so günstig wie mechanische Typen [more]

December 2014


Turbolader-Drehzahl mit hoher Empfindlichkeit messen - acam messelectronic hat die Sensitivität seiner Sensorfamilie für die...[more]

December 2014


Elektronik automotive - Fachmedium für professionelle Automobilelektronik - Sensoren: Turbolader-Drehzahl genau messen [more]


PICOTURN-1G data sheet updated

Version 1.7 is now available in English and German.[more]


TDC-GP30 Development System data sheet released

The data sheets are now available[more]


TDC-GP30 data sheet, Vol.1 + Vol.2 released

The data sheets are now available with two volumes.[more]


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