AD7621ASTZ Analog Devices Inc, AD7621ASTZ Datasheet - Page 2

• Manufacturer Part Number: AD7621ASTZ
• Description: IC ADC 16BIT 2MSPS DIFF 48-LQFP
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of AD7621ASTZ

• Data Interface: Serial, Parallel
• Number Of Bits: 16
• Sampling Rate (per Second): 2M
• Number Of Converters: 1
• Power Dissipation (max): 86mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Resolution (bits): 16bit
• Sampling Rate: 3MSPS
• Input Channel Type: Differential
• Supply Current: 25.2mA
• Digital Ic Case Style: QFP
• No. Of Pins: 48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD7621CBZ - BOARD EVALUATION FOR AD7621
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

AD7621
TABLE OF CONTENTS
Specifications..................................................................................... 3
Timing Specifications....................................................................... 5
Absolute Maximum Ratings............................................................ 7
Pin Configuration and Function Descriptions............................. 8
Terminology .................................................................................... 11
Typical Performance Characteristics ........................................... 12
Theory of Operation ...................................................................... 15
REVISION HISTORY
5/05 — Revision 0: Initial Version
Serial Clock Timing Specifications ............................................ 6
ESD Caution.................................................................................. 7
Circuit Information.................................................................... 15
Converter Operation.................................................................. 15
Modes of Operation ................................................................... 15
Transfer Functions...................................................................... 16
Typical Connection Diagram ................................................... 17
Analog Inputs.............................................................................. 17
Driver Amplifier Choice............................................................ 17
Rev. 0 | Page 2 of 32
Interfaces.......................................................................................... 21
Application ...................................................................................... 27
Outline Dimensions ....................................................................... 28
Voltage Reference Input ............................................................ 18
Power Supply............................................................................... 19
Power Dissipation vs. Throughput .......................................... 20
Conversion Control ................................................................... 20
Digital Interface.......................................................................... 21
Parallel Interface......................................................................... 21
Serial Interface ............................................................................ 22
Master Serial Interface............................................................... 22
Slave Serial Interface .................................................................. 24
Microprocessor Interfacing....................................................... 26
Layout .......................................................................................... 27
Evaluating the AD7621 Performance ...................................... 27
Ordering Guide .......................................................................... 29