CMV300 datasheet(14/56 Pages) AMSOSRAM

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Reference:CMV300-datasheet-v2.11

CMV300 Datasheet

Page 12 of 54

2.7 TEMPERATURE SENSOR

A 16-bit digital temperature sensor is included in the image sensor and can be read out through the SPI-interface. The

on-chip temperature can be obtained by reading out the registers with address 78 and 79 (in burst mode, see section

3.9.2 for more details on this mode).

A calibration of the temperature sensor is needed for absolute temperature measurements. A typical temperature

sensor output vs. temperature curve can be found below. The temperature sensor requires a running input clock

(CLK_IN), the other functions of the image sensor can be operational or in standby mode.

A typical value of the sensor at 0°C is about

��[��]

∗ 5100 DN. A typical slope will be around

��[��]

∗ 15.5 DN/°C. A

sensor will typically heat up about 15°C above ambient temperature.

FIGURE 3: TYPICAL OUTPUT OF THE TEMPERATURE SENSOR OF SEVERAL CMV300 SENSORS @ 25MHZ

y = 12.828x + 4907.9

4500

4700

4900

5100

5300

5500

5700

5900

-20

-10

Die Temperature [°C]

Temperature Sensor

dev1

dev2

dev3

dev4

dev5

Linear (dev2)

CMV300 Datasheet(PDF) 14 Page - ams-OSRAM AG