AD7776_02 datasheet(11/12 Pages) AD

No de pièce	AD7776

Description	LC2MOS, High Speed 1-,4-,and 8-Channel 10-Bit ADCs

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Fabricant	AD [Analog Devices]

Site Internet	http://www.analog.com

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AD7776/AD7777/AD7778

–11–

REV. A

RTN is tied to REFOUT, then the analog input range becomes

0 V to 2 V. The fixed 2 V analog input voltage span of the ADC

can range from 1 V to 3 V (RTN = 0 V) to 0 V to 2 V (RTN =

2 V), i.e., with proper biasing, an input signal range from 0.3 V

to 2.3 V can be covered. Both the relative accuracy and differen-

tial nonlinearity performance remain essentially unchanged in

this mode, while the SNR and THD performance are typically

2 dB to 3 dB worse than standard.

Changing the Analog Input Voltage Range

By biasing the RTN pin above AGND, it is possible to change

the analog input voltage range from its VBIAS

± VSWING format to

a more traditional 0 V to VREF range. The new input range can

be described as

VtoV

REFIN

OFFSET

+

()

where 0 V

≤ VOFFSET ≤ 1 V. To produce this range, the RTN pin

must be biased to (REFIN – 2 VOFFSET). For instance, if

OUTLINE DIMENSIONS

24-Lead Standard Small Outline Package [SOIC]

Wide Body

(RW-24)

Dimensions shown in millimeters and (inches)

CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS

(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR

REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN

COMPLIANT TO JEDEC STANDARDS MS-013AD

0.32 (0.0126)

0.23 (0.0091)

8

0

0.75 (0.0295)

0.25 (0.0098)

45

1.27 (0.0500)

0.40 (0.0157)

SEATING

PLANE

0.30 (0.0118)

0.10 (0.0039)

0.51 (0.020)

0.33 (0.013)

2.65 (0.1043)

2.35 (0.0925)

1.27 (0.0500)

BSC

24

13

12

1

10.65 (0.4193)

10.00 (0.3937)

7.60 (0.2992)

7.40 (0.2913)

15.60 (0.6142)

15.20 (0.5984)

COPLANARITY

0.10

28-Lead Standard Small Outline Package [SOIC]

Wide Body

(RW-28)

Dimensions shown in millimeters and (inches)

CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS

(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR

REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN

COMPLIANT TO JEDEC STANDARDS MS-013AE

0.32 (0.0126)

0.23 (0.0091)

8

0

0.75 (0.0295)

0.25 (0.0098)

45

1.27 (0.0500)

0.40 (0.0157)

SEATING

PLANE

0.30 (0.0118)

0.10 (0.0039)

0.51 (0.0201)

0.33 (0.0130)

2.65 (0.1043)

2.35 (0.0925)

1.27 (0.0500)

BSC

28

15

14

1

18.10 (0.7126)

17.70 (0.6969)

10.65 (0.4193)

10.00 (0.3937)

7.60 (0.2992)

7.40 (0.2913)

COPLANARITY

0.10

Numéro de pièce similaire - AD7776_02

Fabricant	No de pièce	Fiches technique	Description
Analog Devices	AD7776AR	220Kb / 12P	LC2MOS, High Speed 1-, 4- & 8-Channel 10-Bit ADCs REV. 0
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Description similaire - AD7776_02

Fabricant	No de pièce	Fiches technique	Description
Analog Devices	AD7776	220Kb / 12P	LC2MOS, High Speed 1-, 4- & 8-Channel 10-Bit ADCs REV. 0
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	AD7824KNZ	215Kb / 16P	LC2MOS High Speed 4- and 8-Channel 8-Bit ADCs REV. F
	AD7828KNZ	276Kb / 16P	LC2MOS High Speed 4- and 8-Channel 8-Bit ADCs REV. F
	AD7824	270Kb / 16P	LC2MOS High Speed 4- & 8-Channel 8-Bit ADCs REV. F
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	AD7776	550Kb / 12P	LC MOS High Speed 1. 4 nad 8 Channel 10 Bit ADCs REV. A
	AD7824	276Kb / 16P	LC MOS High Speed 4- and 8-Channel 8-Bit ADCs REV. F

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