AD7641BSTZ datasheet, PDF - EEWORLD Datasheet

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AD7641BSTZ: Description1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP48, LEAD FREE, MS-026BBC, LQFP-48; CategoryAnalog mixed-signal IC converter; File Size2MB，29 Pages; ManufacturerRochester Electronics; Websitehttps://www.rocelec.com/; Environmental Compliance

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AD7641BSTZ Overview

1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP48, LEAD FREE, MS-026BBC, LQFP-48

AD7641BSTZ Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Rochester Electronics
Parts packaging code	QFP
package instruction	LFQFP,
Contacts	48
Reach Compliance Code	unknown
Maximum analog input voltage	2.73 V
Minimum analog input voltage	-1.8 V
Maximum conversion time	0.52 µs
Converter type	ADC, SUCCESSIVE APPROXIMATION
JESD-30 code	S-PQFP-G48
JESD-609 code	e3
length	7 mm
Maximum linear error (EL)	0.0013%
Humidity sensitivity level	3
Number of analog input channels	1
Number of digits	18
Number of functions	1
Number of terminals	48
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Output bit code	BINARY, 2\'S COMPLEMENT BINARY
Output format	SERIAL, PARALLEL, WORD
Package body material	PLASTIC/EPOXY
encapsulated code	LFQFP
Package shape	SQUARE
Package form	FLATPACK, LOW PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius)	260
Sampling rate	2 MHz
Sample and hold/Track and hold	SAMPLE
Maximum seat height	1.6 mm
Nominal supply voltage	2.5 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	MATTE TIN
Terminal form	GULL WING
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	40
width	7 mm

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AD7641

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

General Description ......................................................................... 1

Functional Block Diagram .............................................................. 1

Product Highlights ........................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Timing Specifications....................................................................... 5

Absolute Maximum Ratings............................................................ 7

ESD Caution.................................................................................. 7

Pin Configuration and Function Descriptions............................. 8

Terminology .................................................................................... 11

Typical Performance Characteristics ........................................... 12

Appplications Information ............................................................ 15

Circuit Information.................................................................... 15

Converter Operation.................................................................. 15

Modes of Operation ................................................................... 15

Transfer Functions...................................................................... 16

Typical Connection Diagram........................................................ 17

Analog Inputs ............................................................................. 17

Multiplexed Inputs ..................................................................... 17

Driver Amplifier Choice ........................................................... 17

Voltage Reference Input ............................................................ 18

Power Supply............................................................................... 20

Conversion Control ................................................................... 20

Interfaces.......................................................................................... 21

Digital Interface.......................................................................... 21

Parallel Interface......................................................................... 21

Serial interface ............................................................................ 22

Master Serial Interface............................................................... 22

Slave Serial Interface .................................................................. 24

Microprocessor Interfacing....................................................... 26

Application Hints ........................................................................... 27

Layout .......................................................................................... 27

Evaluating the AD7641 Performance ...................................... 27

Outline Dimensions ....................................................................... 28

Ordering Guide .......................................................................... 28

REVISION HISTORY

1/06—Revision 0: Initial Version

Rev. 0 | Page 2 of 28

AD7641BSTZ Related Products

	AD7641BSTZ	AD7641BCPZ
Description	1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP48, LEAD FREE, MS-026BBC, LQFP-48	1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48, 7 X 7 MM, LEAD FREE, MO-220VKKD-2, LFCSP-48
Is it lead-free?	Lead free	Lead free
Is it Rohs certified?	conform to	conform to
Maker	Rochester Electronics	Rochester Electronics
Parts packaging code	QFP	QFN
package instruction	LFQFP,	HVQCCN,
Contacts	48	48
Reach Compliance Code	unknown	unknown
Maximum analog input voltage	2.73 V	2.73 V
Minimum analog input voltage	-1.8 V	-1.8 V
Maximum conversion time	0.52 µs	0.52 µs
Converter type	ADC, SUCCESSIVE APPROXIMATION	ADC, SUCCESSIVE APPROXIMATION
JESD-30 code	S-PQFP-G48	S-XQCC-N48
JESD-609 code	e3	e3
length	7 mm	7 mm
Maximum linear error (EL)	0.0013%	0.0013%
Humidity sensitivity level	3	3
Number of analog input channels	1	1
Number of digits	18	18
Number of functions	1	1
Number of terminals	48	48
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Output bit code	BINARY, 2\'S COMPLEMENT BINARY	BINARY, 2\'S COMPLEMENT BINARY
Output format	SERIAL, PARALLEL, WORD	SERIAL, PARALLEL, WORD
Package body material	PLASTIC/EPOXY	UNSPECIFIED
encapsulated code	LFQFP	HVQCCN
Package shape	SQUARE	SQUARE
Package form	FLATPACK, LOW PROFILE, FINE PITCH	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260	260
Sampling rate	2 MHz	2 MHz
Sample and hold/Track and hold	SAMPLE	SAMPLE
Maximum seat height	1.6 mm	1 mm
Nominal supply voltage	2.5 V	2.5 V
surface mount	YES	YES
Temperature level	INDUSTRIAL	INDUSTRIAL
Terminal surface	MATTE TIN	MATTE TIN
Terminal form	GULL WING	NO LEAD
Terminal pitch	0.5 mm	0.5 mm
Terminal location	QUAD	QUAD
Maximum time at peak reflow temperature	40	40
width	7 mm	7 mm

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