SX8722 데이터 시트보기 (PDF) - Semtech Corporation

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SX8722

High gain acquisition for sensor interface

Semtech Corporation 

SX8722

High gain acquisition for sensor interface

ADVANCED COMMUNICATIONS & SENSING

DATASHEET

PARAMETER

COMMENTS/CONDITIONS

ADC STATIC PERFORMANCES

Resolution

No Missing Codes

Gain Error

Offset Error

Integral Non-Linearity

Differential Non-Linearity

Power Supply Rejection Ratio

n

INL

DNL

PSRR

ADC DYNAMIC PERFORMANCES

Throughput Rate (Continuous Mode) TCONV

(Note 7)

(Note 8)

(Note 9)

n = 16 bits

(Note 10)

resolution n = 16 bits (Note 11)

resolution n = 16 bits (Note 12)

VBATT = 5V +/- 0.3V (Note 13)

VBATT = 3V +/- 0.3V (Note 13)

n = 12 bits (Note 14)

n = 16 bits (Note 14)

Throughput Rate (Continuous Mode) 1/TCONV n = 12 bits, fS

n = 16 bits, fS

Nbr of Initialization Cycles

NINIT

Nbr of End Conversion Cycles

NEND

PGA Stabilization Delay

(Note 15)

TIME BASE

Max ADC oversampling frequency

fSmax

@ 25°C, with a 32k XTAL

Min ADC oversampling frequency

fSmin

@ 25°C, with a 32KXTAL

DIGITAL OUTPUT

ADC Output Data Coding

See Table 55 and Table 56

TEMPERATURE

Specified Range

Operating Range

VALUE

UNITS

MIN

TYP

MAX

6

16

Bits

+/- 0.15

+/- 1

+/- 1.0

+/- 0.5

78

72

% of FS

LSB

LSB

LSB

dB

dB

3

133

0

1027

3.76

cycles / fS

cycles / fS

kS/s

0.49

kS/s

0

2

cycles

0

5

cycles

OSR

cycles

270

300

330

kHz

33

37.5

42

kHz

Binary Two’s Complement

-40

+85

°C

-40

+125

°C

Table 1. ZoomingADC specifications

ACS - Revision 4.2

©2008 Semtech Corp.

October 2008

Page 8

www.semtech.com

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