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4LS

Functional Description

Datasheet

• PUBLIC

DS000542

• v3-01 • 2022-Nov-17

114

│ 28

To accommodate for the use of the companding ADC curve, the overall ADC gain can be programmed

with 8 bits (255 values) over the serial configuration interface.

For a better understanding on the use of companding mode, please see Figure 36.

Figure 36 :

Principle of ADC Companding Mode

7.3.3

ADC Parameters

The next figure presents the parameters of the ADC.

Figure 37:

ADC Parameters

Parameter

Min

Typ

Max

Unit

Default conversion (full range)

0.8

1.2

INL

LSB(1)

DNL

0.5

LSB(1)

Programmable VReset voltage swing

1.65

1.8

1.85

Programmable conversion (full range)

0.5

1.38

(1)

Is defined as LSB as the difference between the binary level N and N+1.

ADC Black Level

ADC Step

ADC Slope Threshold 1

ADC Slope Threshold 2

ADC Slope Threshold 3

ADC End Range

Black

White

Analogue

Signal

Level

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