AD7675 datasheet(3/28 Pages) AD

Il numero della parte	AD7675

Spiegazioni elettronici	16-Bit, 500 kSPS PulSAR짰 Dual, 2-Channel, Simultaneous Sampling ADC

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Produttore elettronici	AD [Analog Devices]

Homepage	http://www.analog.com

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3 / 28 page

AD7654

Rev. B | Page 3 of 28

SPECIFICATIONS

AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V; all specifications TMIN to TMAX, unless otherwise noted.

Table 2.

Parameter

Conditions

Min

Typ

Max

Unit

RESOLUTION

16

Bits

ANALOG INPUT

Voltage Range

VINx – VINxN

0

2 VREF

V

Common-Mode Input Voltage

VINxN

−0.1

+0.5

V

Analog Input CMRR

fIN = 100 kHz

55

dB

Input Current

500 kSPS throughput

45

μA

Input Impedance1

THROUGHPUT SPEED

Complete Cycle

In normal mode

2

μs

Throughput Rate

In normal mode

0

500

kSPS

Complete Cycle

In impulse mode

2.25

μs

Throughput Rate

In impulse mode

0

444

kSPS

DC ACCURACY

Integral Linearity Error2

−3.5

+3.5

LSB3

No Missing Codes

16

Bits

Transition Noise

0.7

LSB

Full-Scale Error4

TMIN to TMAX

±0.25

±0.5

% of FSR

Full-Scale Error Drift4

±2

ppm/°C

Unipolar Zero Error4

TMIN to TMAX

±0.25

% of FSR

Unipolar Zero Error Drift4

±0.8

ppm/°C

Power Supply Sensitivity

AVDD = 5 V ±5%

0.8

LSB

AC ACCURACY

Signal-to-Noise

fIN = 20 kHz

88

90

dB5

fIN = 100 kHz

89

dB

Spurious-Free Dynamic Range

fIN = 100 kHz

105

dB

Total Harmonic Distortion

fIN = 100 kHz

−100

dB

Signal-to-Noise and Distortion

fIN = 20 kHz

87.5

90

dB

fIN = 100 kHz

88.5

dB

fIN = 100 kHz, −60 dB Input

30

dB

Channel-to-Channel Isolation

fIN = 100 kHz

−92

dB

−3 dB Input Bandwidth

10

MHz

SAMPLING DYNAMICS

Aperture Delay

2

ns

Aperture Delay Matching

30

ps

Aperture Jitter

5

ps rms

Transient Response

Full-scale step

250

ns

REFERENCE

External Reference Voltage Range

2.3

2.5

AVDD/2

V

External Reference Current Drain

500 kSPS throughput

180

μA

DIGITAL INPUTS

Logic Levels

VIL

−0.3

+0.8

V

VIH

+2.0

DVDD + 0.3

V

IIL

−1

+1

μA

IIH

−1

+1

μA

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