-

ams Innovation Delivers the World’s Most Accurate Digital Temperature Sensor for Wearable Devices and Data Centers

News facts:

  • AS6221 is a complete temperature system, achieving a measurement accuracy of ±0.09°C, outperforming competitive digital temperature sensor chips
  • The sensor enables more accurate body/skin temperature measurement performance in health and lifestyle monitoring products
  • Miniaturized package with a footprint of just 1.5mm x 1mm
  • Breakthrough temperature sensor performance brings new value to demanding applications including thermal monitoring in high-end electronics devices and data centers

PREMSTAETTEN, Austria--(BUSINESS WIRE)--ams (SIX: AMS), a leading worldwide supplier of high performance sensor solutions, today announced the launch of the AS6221, the world’s most accurate digital temperature sensor.

The AS6221 achieves measurement accuracy of ±0.09°C, over a temperature range from 20°C to 42°C, making it ideal for the measurement of human body or skin temperature. No competing digital temperature sensor on the market today can achieve accuracy better than ±0.10°C.

The AS6221 is housed in a WLCSP package with a footprint of just 1.5mm x 1mm, and draws 6µA at an output data rate of 4Hz. Stand-by current is just 0.1µA.

This compact and low-power sensor is well suited to battery-powered portable and wearable devices, such as premium lifestyle or fitness monitoring wristbands, and smart watches. In high-end computing systems and servers, it also enables the precise regulation of the operation of the processor to maximize system throughput while avoiding overheating.

The introduction of the AS6221 extends ams’ position in the market for health monitoring technology, alongside existing products such as the AS7038RB blood oxygen monitoring device, AS7030B biosensor, devices for medical imaging systems, and the NanEye family of image sensors for endoscopy.

Alexander Rensink, Business Segment Manager Position Sensors at ams, said: “In high-end consumer products such as smart watches and lifestyle monitoring wristbands, skin temperature is a critical metric, and so design engineers devote an enormous amount of time and effort to achieving and then validating high temperature measurement accuracy across all operating conditions. The introduction today of the AS6221 makes that task easier, providing more accurate measurement outputs, easing the integration of temperature sensing into the system, and giving flexibility to support a range of operating voltages.”

The high accuracy of the AS6221 is specified across the device’s entire supply voltage range of 1.7V to 3.6V. By contrast, the most accurate competing sensors can only achieve their highest accuracy at a single voltage point, producing less accurate outputs across the rest of their operating voltage range.

The sensor offers a short measurement conversion time of 35ms. Its full operating temperature range is -40°C to 125°C.

Convenient digital output options

A complete digital temperature sensor system, the AS6221 requires no calibration or linearization. It provides its measurement outputs via a standard I2C interface, and includes eight I2C addresses.

The AS6221 also offers an alarm function, to alert the user when a temperature threshold is crossed. The temperature value for the alarm function may be set by a host processor via the device’s register instruction set.

The AS6221 temperature sensor is available for sampling. For sample requests or for more technical information, go to https://ams.com/AS6221.

Contacts

Amy Flécher
ams AG
VP Marketing Communications
press@ams.com
ams.com

Industry:

ams

SWX:AMS
Details
Headquarters: Premstaetten, Graz, Austria
CEO: Aldo Kamper
Employees: 20.000
Organization: PUB
Revenues: EUR 3.6 billion (2023)
Release Summary
ams innovation delivers the world’s most accurate digital temperature sensor for wearable devices and data centers
Release Versions
English

Contacts

Amy Flécher
ams AG
VP Marketing Communications
press@ams.com
ams.com

More News From ams

ams OSRAM’s Strategic Focus Pays off With Strong FCF of EUR 43 m in Q3 and 9 % Comparable Growth in Its Core Semiconductor Business

PREMSTAETTEN, Austria & MUNICH--(BUSINESS WIRE)--“Our core semiconductor business grew again like-for-like in line with our target operating model. As promised, we are delivering a stronger second half in terms of top-line, bottom-line and cash flow, despite the weaker US Dollar and higher raw material prices. At the same time, we are continuously winning new business and are preparing for future growth by launching new technology platforms.” said Aldo Kamper, CEO of ams OSRAM. Q3/25 business a...

Coffee cup or travel mug? New high-resolution dToF sensor sees the difference

PREMSTAETTEN, Austria & MUNICH--(BUSINESS WIRE)--The TMF8829 direct Time-of-Flight (dToF) sensor significantly increases resolution — from the previously common 8x8 zones to 48x32 — and it is designed to detect subtle spatial differences and distinguish closely spaced or slightly varied objects. The new sensor from ams OSRAM can tell whether an espresso cup or a travel mug is placed under a coffee machine, ensuring the right amount is dispensed every time. This kind of precision is critical for...

ams OSRAM Posts Solid Q2 Results at the Midpoint of the Guidance Despite Currency Headwinds and Executes First Steps of Its Accelerated Deleveraging Plan

PREMSTAETTEN, Austria & MUNICH--(BUSINESS WIRE)--ams OSRAM delivers 18.8 % adj. EBITDA at revenues of EUR 775 m in Q2, confirms 2025 FCF outlook above EUR 100 m and executes first steps of its accelerated deleveraging plan “We showed a solid performance in Q2 in a still difficult market with good profitability on the back of rapid implementation of ‘Re-establish-the Base’ and preproduction for the second half, as well as a very good design-win momentum securing future semiconductor business. We...
Back to Newsroom