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AS621x
General Description
Datasheet • PUBLIC
DS000677 • v2-00 • 2020-Feb-24
36 │ 3
1 General Description
The AS621x IC family is a high accuracy temperature sensor system that communicates via a 2-wire
digital bus with other devices. It consists of a Si bandgap temperature sensor, an ADC and a digital
signal processor.
The family consists of 3 different variants (AS6212, AS6214 and AS6218). The difference between
these variants is the temperature accuracy:
Figure 1:
AS621x Variants
Variant
Temperature Accuracy
Remark
AS6212
±0.2°C
between -10°C to 65°C
AS6214
±0.4°C
between 0°C to 65°C
AS6218
±0.8°C
between 0°C to 65°C
The high temperature accuracy (shown in Figure 1) and an ultra-low power consumption (low
operation and quiescent current) makes the AS621x ideally suited for mobile/battery powered
applications.
The AS621x is an easy to integrate and use solution, featuring a factory-calibrated sensor, integrated
linearization and the possibility to use 8 different I²C addresses, enabling to use eight AS621x devices
on one bus.
Additionally the AS621x temperature sensor system features an alert functionality, which triggers e.g.
an interrupt to protect devices from excessive temperatures.
1.1 Key Benefits & Features
The benefits and features of AS621x are listed below:
Figure 2:
Added Value of Using AS621x
Benefits
Features
High Measurement Accuracy
± 0.2 °C ( -10°C to 65 °C, for AS6212)
± 0.3 °C (from -40°C to -10°C and from 65°C to
85°C, for AS6212)
± 0.5 °C (for remaining temperature span, for
AS6212)