MAX11152 datasheet(8/33 Pages) MAXIM

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Evaluates: MAX11150/MAX11152/

MAX11158/MAX11160/MAX11161/MAX11162/

MAX11163/MAX11168/MAX11169

MAX1115X/MAX1116X Family

Evaluation Kit

System Calibration

The purpose of this procedure is to calculate coefficients

to compensate gain and offset error. This procedure

allows the calibration using any two points that fit the input

voltage range. A DC supply and DMM is required for this

procedure.

1) Measure the zero-scale and full-scale signal applied

at the input of the EV kit.

2) Enter the voltage values into the

Input Measured

(V) Min and Max numeric boxes (±5V or ±10V de-

pending upon the ADC device on the EV kit).

3) Apply a zero-scale signal (-5V or -10V depending

upon ADC device on the EV kit) to the ADC inputs

and click

Read Data.

4) Enter the

Data (V) value into the ADC Data Read

(V) Min numeric box.

5) Apply a full-scale signal (+5V or +10V depending

upon ADC device on the EV kit) to the ADC inputs

and click

Read Data.

6) Enter the

Data (V) value into the ADC Data Read

(V) Max numeric box.

7) Click

Calculate.

8) The GUI will adjust the

Gain Coefficient value and

Offset (mV) value.

9) Software calibration is enabled by checking the

En-

able Calibration checkbox. This calibration is used

for measurements taken with the

Scope, DMM,

Histogram, and FFT tabs.

Figure 1. EV Kit Software (Configuration Tab)

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