MCP33131D datasheet(13/59 Pages) MICROCHIP

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DS20005947B-page 13

MCP33131D/MCP33121D/MCP33111D-XX

Note:

Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,

VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.

MCP33131D-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.

MCP33131D-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.

FIGURE 2-13:

SNR/SINAD/ENOB vs. VREF

FIGURE 2-14:

SNR/SINAD vs.

Temperature: VREF = 5V.

FIGURE 2-15:

SNR/SINAD vs. Input

Amplitude: FIN = 10 kHz.

FIGURE 2-16:

SFDR/THD vs. VREF

FIGURE 2-17:

SNR/SINAD vs.

Temperature: VREF = 2.5V.

FIGURE 2-18:

SNR/SINAD vs. Input

Amplitude: FIN = 10 kHz.

2.5

3.5

4.5

5.5

Reference Voltage (V)

82.5

87.5

92.5

2.5

3.5

4.5

5.5

Reference Voltage (V)

12.5

13.5

14.5

15.5

ENOB

SNR (dB)

SINAD (dB)

-40 -20

100 120 140

Temperature (

oC)

89.6

89.8

90.2

90.4

90.6

SNR (dB)

SINAD (dB)

REF

= 5V

-30

-25

-20

-15

-10

-5

Input Amplitude (dBFS)

SNR (dBFS)

SINAD(dBFS)

REF

= 5V

2.5

3.5

4.5

5.5

Reference Voltage (V)

-101

-98

-95

-92

2.5

3.5

4.5

5.5

Reference Voltage (V)

102

107

THD (dB)

SFDR (dB)

-40 -20

100 120 140

Temperature (

oC)

SNR (dB)

SINAD (dB)

REF

= 2.5V

-30

-25

-20

-15

-10

-5

Input Amplitude (dBFS)

SNR (dBFS)

SINAD(dBFS)

REF

= 2.5V

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