PS9352AL2-AX datasheet(7/21 Pages) RENESAS

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PS9352AL2

Chapter Title

R08DS0129EJ0100 Rev.1.00

Page 7 of 19

Aug 24, 2015

ELECTRICAL CHARACTERISTICS (Tested with Sinc

3 filter, 256 decimation ratio.)

(TYP.: TA = 25

C, VIN = VIN = 0 V, VDD1 = VDD2 = 5 V,

MIN., MAX.: refer to RECOMMENDED OPERATING CONDITIONS, unless otherwise specified)

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Unit

Signal to Noise Ratio *8

SNR

VIN = 35 Hz, 400 mVpk-pk

(141 mVr.m.s.) sine wave

Total Harmonic Distortion *9

THD

80

Signal to Noise and Distortion

Ratio *10

SNDR

Effective Number of Bit *11

ENOB

bits

Signal to Noise Ratio (SNR) is the ratio of the AC signal power to the noise power that excludes harmonic signals

and DC. SNR is defined as follows,

SNR (dB) = 10log(PS/PN)

PS: Signal power (fundamental)

PN: Noise power (excluding harmonic signals and DC)

Total Harmonic Distortion (THD) is the ratio of the AC signal power (fundamental) to the sum of harmonic signals

that are occurred by the non-linearity. THD is defined as follows,

THD (dB) = 10log((PH2

 PH3  ...  PH5)/PS)

PS: Signal power (fundamental)

PH2, PH3 ... PH5: Second through fifth harmonics power

*10

Signal to Noise and Distortion ratio (SNDR) is the ratio of the AC signal power (fundamental) to the noise power

plus distortion power. SNDR is defined as follows,

SNDR (dB) = 10log(PS/(PN

 PH2  PH3  ...  PH5))

PS: Signal power (fundamental)

PN: Noise power (excluding harmonic signals and DC)

PH2, PH3 ... PH5: Second through fifth harmonics power

*11

Effective Number of Bit (ENOB) is the effective resolution of ADC that is considered the noise.

ENOB is defined as follows,

ENOB (bits) = (SNR

1.76)/6.02

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