AD6644ASTZ-40 Analog Devices Inc, AD6644ASTZ-40 Datasheet - Page 2

• Manufacturer Part Number: AD6644ASTZ-40
• Description: IC ADC 14BIT 40MSPS CMOS 52-LQFP
• Manufacturer: Analog Devices Inc

Specifications of AD6644ASTZ-40

• Data Interface: Parallel
• Number Of Bits: 14
• Sampling Rate (per Second): 40M
• Number Of Converters: 4
• Power Dissipation (max): 1.3W
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 52-LQFP
• Resolution (bits): 14bit
• Input Channel Type: Differential
• Supply Voltage Range - Analogue: 4.85V To 5.25V
• Supply Voltage Range - Digital: 3V To 3.6V
• Supply Current: 245mA
• Sampling Rate: 40MSPS
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD6644
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 7
REVISION HISTORY
8/07—Rev. C to Rev. D
Changes to Table 5............................................................................ 5
Changes to Noise (for Any Range Within the ADC) Definition .. 13
Added Table 8.................................................................................. 16
Changes to Evaluation Board Section.......................................... 18
Changes to Ordering Guide .......................................................... 21
5/03—Data Sheet changed from Rev. B to Rev. C
Updated Outline Dimensions ....................................................... 19
3/03—Data Sheet changed from Rev. A to Rev. B
Change to Digital Specifications Note ........................................... 2
3/03—Data Sheet changed from Rev. 0 to Rev. A
Edits to Specifications ...................................................................... 2
Renumbering of Figures and TPCs ..................................Universal
Updated Outline Dimensions ....................................................... 19
DC Specifications ......................................................................... 3
Digital Specifications ................................................................... 4
Switching Specifications .............................................................. 4
AC Specifications.......................................................................... 5
Timing Diagram ........................................................................... 6
Rev. D | Page 2 of 24
Pin Configuration and Function Descriptions..............................8
Typical Performance Characteristics ..............................................9
Equivalent Circuits......................................................................... 12
Terminology .................................................................................... 13
Theory of Operation ...................................................................... 15
Evaluation Board ............................................................................ 18
Outline Dimensions ....................................................................... 21
Explanation of Test Levels............................................................7
Thermal Resistance .......................................................................7
ESD Caution...................................................................................7
Applying the AD6644 ................................................................ 15
Ordering Guide .......................................................................... 21