AS6200 datasheet(13/35 Pages) AMSCO

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ams Datasheet

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[v1-01] 2016-Jun-17

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AS6200 − Detailed Descriptions

Consecutive Faults, Bits D11-D12

A fault condition persists if the measured temperature either

exceeds the configured value in register THIGH or falls below

the defined value in register TLOW. As a result, the ALERT pin

indicates the fault condition if a defined number of consecutive

temperature readings meets this fault condition. The number

of consecutive faults are defined with two bits (D12 and D11)

and prevent a false alert if environmental temperature noise is

present. The register configuration is shown in the following

table.

Figure 20:

Consecutive Faults Bit Settings

Single Shot Conversion, Bit D15

The device features a single shot measurement mode if the

device is in sleep mode (SM=1). By setting the “Single Shot-bit”

to 1, a single temperature conversion is started and the SS-bit

can be read as 1 during the active conversion operation. Once

the conversion is completed, the device enters the sleep mode

again and the SS-bit is set to 0. The single shot conversion allows

very low power consumption since a temperature conversion

is executed on demand only. This allows a user defined timing

of the temperature conversions to be executed and is used if

the consecutive operation mode is not required.

As the device exhibits a very short conversion time, the effective

conversion rate can be increased by setting the single shot bit

repetitively after a conversion has finished. However, it has to

be ensured that the additional power is limited, otherwise

self-heating effects have to be considered.

Figure 21:

Single Shot Conversion Bit Settings

CF Bits

Consecutive Faults (N)

D12

D11

SS Bit

Conversion

No conversion ongoing/conversion finished

Start Single Shot conversion /conversion ongoing

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