MCP3919 datasheet(17/88 Pages) MICROCHIP

17 / 88 page

 2014 Microchip Technology Inc.

DS20005347A-page 17

MCP3919

Note:

Unless otherwise indicated, AVDD = 3V, DVDD = 3V; TA = +25°C, MCLK = 4 MHz; PRESCALE = 1;

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

BOOST<1:0> = 10.

FIGURE 2-37:

Internal Voltage Reference

vs. Supply Voltage.

FIGURE 2-38:

Integral Nonlinearity

(Dithering Maximum).

FIGURE 2-39:

Integral Nonlinearity

(Dithering Off).

FIGURE 2-40:

Operating Current vs. MCLK

Frequency vs. Boost, VDD = 3V.

1.1961

1.1962

1.1963

1.1964

1.1965

1.1966

1.1967

1.1968

1.1969

2.5 2.6 2.7 2.8 2.9

3.1 3.2 3.3 3.4 3.5 3.6

DD (V)

-10

-8

-6

-4

-2

-0.6

-0.4

-0.2

0.0

0.2

0.4

0.6

Input Voltage (V)

-10

-8

-6

-4

-2

-0.6

-0.4

-0.2

0.0

0.2

0.4

0.6

Input Voltage (V)

2468

MCLK (MHz)

AIDD Boost =0.5x

AIDD Boost =0.66x

AIDD Boost =1x

AIDD Boost =2x

DIDD

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