MCP3911 datasheet(17/72 Pages) MICROCHIP

17 / 72 page

DS22286A-page 17

MCP3911

Note:

Unless otherwise indicated, AVDD = 3.3V, DVDD = 3.3V; TA = 25°C, MCLK = 4 MHz; PRESCALE = 1;

OSR = 256; GAIN = 1; Dithering = Maximum; VIN = -0.5 dBFS @ 60 Hz, VREFEXT = 0; CLKEXT = 1,

AZ_FREQ = 0; BOOST = 1X.

FIGURE 2-37:

VREF Drift Data Histogram

Chart.

FIGURE 2-38:

Integral Non-Linearity

(Dithering Maximum).

FIGURE 2-39:

Integral Non-Linearity

(Dithering Off).

FIGURE 2-40:

Operating Current vs.

MCLK, VDD = 3.3V.

FIGURE 2-41:

Operating Current vs.

MCLK, VDD = 2.7V.

0369

Internal Voltage Reference Drift (ppm/C)

-5

Channel 1

-25

-20

-15

-10

-0.6

-0.3

0.3

0.6

Input Voltage (V)

Channel 0

-5

Channel 0

Channel 1

-25

-20

-15

-10

-0.6

-0.3

0.3

0.6

Input Voltage (V)

Channel 1

1.5

2.5

3.5

4.5

DD, Boost = 2x

DD, Boost = 1x

DD, Boost = 0.6x

0.5

0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30

MCLK Frequency (MHz)

DD, Boost = 0.5x

DD, All Boost Settings

1.5

2.5

3.5

DD, Boost = 2x

DD, Boost = 1x

DD, Boost = 0.6x

0.5

0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30

MCLK Frequency (MHz)

DD, Boost = 0.5x

DD, All Boost Settings

MCP3911 Datasheet(PDF) 17 Page - Microchip Technology

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