MCP3304 datasheet(11/40 Pages) MICROCHIP

номер детали	MCP3304

подробное описание детали	13-Bit Differential Input, Low Power A/D Converter with SPI Serial Interface

PDF	40 Pages

Scroll/Zoom	100%

производитель	MICROCHIP [Microchip Technology]

домашняя страница	http://www.microchip.com

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11 / 40 page

 2002 Microchip Technology Inc.

DS21697B-page 11

MCP3302/04

Note:

Unless otherwise indicated, VDD = VREF = 5V, Full differential input configuration, VSS = 0V,

FSAMPLE = 100 ksps, FCLK = 21*FSAMPLE, TA = 25°C.

FIGURE 2-25:

Effective Number of Bits

(ENOB) vs. VREF.

FIGURE 2-26:

Spurious Free Dynamic

Range (SFDR) vs. Input Frequency.

FIGURE 2-27:

Frequency Spectrum of

10 kHz Input (Representative Part).

FIGURE 2-28:

Effective Number of Bits

(ENOB) vs. Input Frequency.

FIGURE 2-29:

Power Supply Rejection

(PSR) vs. Ripple Frequency.

FIGURE 2-30:

Frequency Spectrum of

1 kHz Input (Representative Part, VDD = 2.7V).

012345

VREF(V)

VDD=2.7V

FSAMPLE = 50 ksps

VDD=5V

FSAMPLE = 100 ksps

100

110

100

Input Frequency (kHz)

VDD=VREF=2.7V

FSAMPLE = 50 ksps

VDD=VREF=5V

FSAMPLE = 100 ksps

-150

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

10000

20000

30000

40000

50000

Frequency (Hz)

11.2

11.4

11.6

11.8

12.2

12.4

12.6

12.8

110

100

Input Frequency (kHz)

VDD=VREF=2.7V

FSAMPLE = 50 ksps

VDD=VREF=5V

FSAMPLE = 100 ksps

-80

-75

-70

-65

-60

-55

-50

-45

-40

-35

-30

100

1000

10000

Ripple Frequency (kHz)

0.1 µF Bypass

Capacitor

-150

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

5000

10000

15000

20000

25000

Frequency (Hz)

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