AD7771 datasheet(7/14 Pages) AD

номер детали	AD7771

подробное описание детали	8-Ch, 24-Bit Simultaneous Sampling ADC

PDF	14 Pages

Scroll/Zoom	100%

производитель	AD [Analog Devices]

домашняя страница	http://www.analog.com

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7 / 14 page

Rev. PrC | Page 6 of 13

Parameter

Test Conditions

Comment

Min

Typ

Max

Unit

8 KSPS, LP Mode

110

2 KSPS, LP Mode,

118

THD

-109

-106

SINAD

106

SFDR

107

IMD

fA = 50 Hz, fB = 51 Hz, HR

125

fA = 50 Hz, fB = 51 Hz, LP

105

DC Power Supply Rejection

AVDD1x = 3.3V

-90

DC Common Mode Rejection

Ratio

Crosstalk

Up to 2 kHz input.

Reference Buffer Full

mode

-110

DC ACCURACY

Integral Nonlinearity

End Point Method

±7

±15

ppm/FSR

Offset Error

±40

±250

µV

Offset Error Drift

±0.5

µV/°C

Versus Time

TBD

nV/1000

hrs

Offset Matching

µV

Gain Error

PGAGAIN = 1

±0.1%

Gain Drift vs. Temperature

150

ppm/°C

Gain Matching

±0.1

SAR ADC

SPEED & PERFORMANCE

Resolution

Bits

Analog Input Range

AVSS4+0.1

AVDD4-0.1

Analog Input Common Mode

Range

AVSS4+0.1

(AVDD4-AVSS4)/2

AVDD4-0.1

Analog Input Leakage Current

±10

Throughput

256

kSPS

TUE

DC ACCURACY

Differential Mode

INL

LSB

DNL

No Missing codes (12 bit)

1.5

LSB

Offset

LSB

Gain

0.6

LSB

TUE

TBD

LSB

AC PERFORMANCE

SNR

1 kHz

THD

1 kHz

-83

VCM PIN

Output

(AVDD1−AVSS)/2

Load Current

Load Regulation

∆VOUT/∆IL

μV/mA

Short Circuit Current

LOGIC INPUTS

Input High Voltage, VINH

1.65V≤ IOVDD ≤1.95V

0.65×IOVDD

AD7771

Preliminary Technical Data

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