ADS8328IRSARG4 datasheet(5/51 Pages) TI1

No. de pieza	ADS8328IRSARG4

Descripción Electrónicos	LOW POWER, 16-BIT, 500-kHz, SINGLE/DUAL UNIPOLAR INPUT, ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL INTERFACE

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Fabricante Electrónico	TI1 [Texas Instruments]

Página de inicio	http://www.ti.com

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5 / 51 page

ADS8327

ADS8328

www.ti.com

SLAS415E

– APRIL 2006 – REVISED JANUARY 2011

SPECIFICATIONS (continued)

TA = –40°C to 85°C, +VA = 2.7 V to 3.6 V, +VBD = 1.65 V to 1.5 × (+VA), VREF = 2.5 V, and fSAMPLE = 500 kHz, unless

otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DYNAMIC CHARACTERISTICS

VIN = 2.5 VPP at 10 kHz

–98

THD

Total harmonic distortion (4)

dB

VIN = 2.5 VPP at 100 kHz

–83.5

VIN = 2.5 VPP at 10 kHz

88.5

SNR

Signal-to-noise ratio

dB

VIN = 2.5 VPP at 100 kHz

85

VIN = 2.5 VPP at 10 kHz

88.5

SINAD

Signal-to-noise + distortion

dB

VIN = 2.5 VPP at 100 kHz

81

VIN = 2.5 VPP at 10 kHz

101

SFDR

Spurious-free dynamic range

dB

VIN = 2.5 VPP at 100 kHz

84

–3dB small-signal bandwidth

30

MHz

CLOCK

Internal conversion clock frequency

10.5

11

12.2

MHz

Used as I/O clock only

33

SCLK External serial clock

MHz

As I/O clock and conversion clock

1

21

EXTERNAL VOLTAGE REFERENCE INPUT

VREF(REF+ – REF–)

3.6 V

≥ +VA ≥ 2.7 V

0.3

2.525

Input reference

VREF

V

range

(REF

–) – AGND

–0.1

0.1

Resistance (5)

Reference input

80

k

Ω

DIGITAL INPUT/OUTPUT

Logic family

—CMOS

VIH

High-level input voltage

(+VA

× 1.5) V ≥ +VBD ≥ 1.65 V

0.65

× (+VBD)

+VBD + 0.3

V

VIL

Low-level input voltage

(+VA

× 1.5) V ≥ +VBD ≥ 1.65 V

–0.3

0.35

× (+VBD)

V

II

Input current

VI = +VBD or BDGND

–50

50

nA

CI

Input capacitance

5

pF

(+VA

× 1.5) V ≥ +VBD ≥ 1.65 V,

VOH

High-level output voltage

+VBD

– 0.6

+VBD

V

IO = 100 mA

(+VA

× 1.5) V ≥ +VBD ≥ 1.65 V,

VOL

Low-level output voltage

0

0.4

V

IO = 100 mA

CO

Output capacitance

5

pF

CL

Load capacitance

30

pF

Data format

—straight binary

POWER-SUPPLY REQUIREMENTS

+VBD

1.65

+VA

1.5

× (+VA)

V

Power-supply

voltage

+VA

2.7

3.6

V

500-kHz Sample rate

3.8

5

mA

Supply current

NAP/Auto-NAP mode

0.2

0.4

Deep power-down mode

2

50

nA

Buffer I/O supply current

500 kSPS

0.2

mA

Power dissipation

+VA = 2.7 V, +VBD = 1.8 V

10.6

14

mW

TEMPERATURE RANGE

TA

Operating free-air temperature

–40

+85

°C

(4)

Calculated on the first nine harmonics of the input frequency.

(5)

Can vary

±30%.

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Product Folder Link(s): ADS8327 ADS8328

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