Cypress CY7C6435x, CY7C64345, CY7C6431x manual ADC Electrical Specifications, Inl

CY7C6431x

CY7C64345, CY7C6435x

ADC Electrical Specifications

Table 8. ADC Electrical Specifications

Symbol	Description	Min	Typ	Max	Units	Conditions
	Input
	Input Voltage Range	Vss		1.3	V	This gives 72% of maximum code
	Input Capacitance			5	pF
	Resolution		8		Bits
	8-Bit Sample Rate		23.4375		ksps	Data Clock set to 6 MHz. Sample
						Rate = 0.001/(2^Resolution/Data
						clock)
	DC Accuracy
	DNL	-1		+2	LSb	For any configuration
	INL	-2		+2	LSb	For any configuration
	Offset Error	0	15	90	mV
	Operating Current		275	350	μA
	Data Clock	2.25		12	MHz	Source is chip’s internal main oscil-
						lator. See AC chip level specifica-
						tions for accuracy.
	Monotonicity					Not guaranteed. See DNL
	Power Supply Rejection Ratio
	PSRR (Vdd>3.0V)		24		dB
	PSRR (2.2 < Vdd < 3.0)		30		dB
	PSRR (2.0 < Vdd < 2.2)		12		dB
	PSRR (Vdd < 2.0)		0		dB
	Gain Error	1		5	%FSR	For any resolution
	Input Resistance	1/(500fF*D	1/(400fF*D	1/(300fF*D	Ω	Equivalent switched cap input
		ata-Clock)	ata-Clock)	ata-Clock)		resistance for 8-, 9-, or 10-bit
						resolution.

Document Number: 001-12394 Rev *G Page 14 of 28

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