MCP3564 datasheet(13/108 Pages) MICROCHIP

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DS20006181C-page 13

MCP3561/2/4

2.0

TYPICAL PERFORMANCE CURVES

Note: Unless otherwise indicated, AVDD =3.3V, DVDD =3.3V, TA = +25°C, MCLK = 4.9152 MHz, VIN = -0.5 dBFS at

50 Hz, VREF =AVDD, ADC_MODE[1:0] = 11. All other registers are set to default value. Histogram ticks are centered at

their bin center.

FIGURE 2-1:

FFT Output Spectrum,

fin =50Hz.

FIGURE 2-2:

FFT Output Spectrum,

fin = 1 kHz.

FIGURE 2-3:

Output Noise Histogram.

FIGURE 2-4:

INL vs. Input Voltage.

FIGURE 2-5:

Output Noise vs. Input

Voltage.

FIGURE 2-6:

Maximum INL vs. Gain.

Note:

The graphs and tables provided following this note are a statistical summary based on a limited number of

samples and are provided for informational purposes only. The performance characteristics listed herein

are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified

operating range (e.g., outside specified power supply range), and therefore, outside the warranted range.

-180

-160

-140

-120

-100

-80

-60

-40

-20

500

1000

1500

2000

2500

Frequency (Hz)

IN = -0.5 dBFS at 50 Hz

FFT 16384 samples

-180

-160

-140

-120

-100

-80

-60

-40

-20

500

1000

1500

2000

2500

Frequency (Hz)

IN = -0.5 dBFS at 1 kHz

FFT 16384 samples

1000

2000

3000

4000

5000

6000

ADC Output Code (LS )

IN = 0V

Noise = 8.9

RMS

CONV_MODE[1:0] =

64000 samples

Bin size = 4 LS

-6

-4

-2

-100

-50

100

Differential Input Voltage (% of V

REF)

AVDD=VREF=2.7V, -40°C

AVDD=VREF=2.7V, +125°C

AVDD=VREF=3.6V, -40°C

AVDD=VREF=3.6V, +125°C

Gain = 1x

0.5

1.5

2.5

3.5

4.5

-100

-50

100

Differential Input Voltage (% of V

REF)

AVDD = VREF = 2.7V, -40°C

AVDD = VREF = 2.7V, +125°C

AVDD = VREF = 3.6V, -40°C

AVDD = VREF = 3.6V, +125°C

Gain = 1X

0.25

0.5

Analog Gain

AVDD = VREF = 2.7V, -40°C

AVDD = VREF = 2.7V, +125°C

AVDD = VREF = 3.6V, -40°C

AVDD = VREF = 3.6V, +125°C

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