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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 + Vol. 3) IS 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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October 2015

electrónica & comunicaciones, Newsletter (8 octubre 2015)

Nuevo circuito integrado Picostrain PS09 para captura de sensores resistivos de tensión mecįnica por tecnologķa TDC[mehr]

September 2015

»Kontinuität war, ist und bleibt das Ziel«

Augustin Braun, acam messelectronic: »Die Marke acam wird sicherlich bis auf weiteres bestehen bleiben. Sie ist – neben der Technologie selber und...[mehr]

June 2015

NEW Sales Representatives/Distributors List

Is now listed on the website of ams AG[mehr]

May 2015

SENSOR+TEST 2015: acam Augustin Braun

Interview mit Augustin Braun, Geschäftsführer bei acam, auf der SENSOR+TEST 2015. [mehr]

October 2015


Ultraschallsensor / Ultraschall-Durchflusssensor für den Massenmarkt [mehr]

September 2015

SPS Magazin - Zeitschrift für Automatisierungstechnik

Freie Sicht - Theoretische und praktische Aspekte der Taupunkt-Berechnung [mehr]

July 2015


SoC für Ultraschall-Durchflussmessungen [mehr]

June 2015


Ultraschallsensor Ultraschall-Durchflusssensor für den Massenmarkt [mehr]

May 2015


Ultraschall-Durchflusssensor für den Massenmarkt der Gas-Wandgeräte -/- Ein deutsches Traditionsunternehmen für Heiztechnik, ein Technologie-Start-Up...[mehr]

May 2015


Neuer SoC von acam vereinfacht Elektronik für Ultraschall-Wasserzähler erheblich | Hochpräzise und dabei extrem stromsparend, so läutet der TDC-GP30...[mehr]


Open part of the acam firmware

When working with the unmodified acam firmware, only one type of file is needed, the firmware data file which contains chip configurations and...[mehr]


Calibration Engine for GP30

Attention: Important Update: GP30 Calibration Engine, version 4.4 is now released and available.[mehr]


PCap04 Development System data sheet released

The data sheet (v1.0) is now available[mehr]


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