AD7492 Analog Devices, AD7492 Datasheet - Page 2

• Manufacturer Part Number: AD7492
• Description: 1MSPS, 4mW Internal Ref & Clk, 12-Bit Parallel ADC
• Manufacturer: Analog Devices

Specifications of AD7492

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Par
• Analog Input Type: SE-Uni
• Ain Range: Uni 2.5V
• Adc Architecture: SAR
• Pkg Type: SOIC,SOP

AD7492
TABLE OF CONTENTS
Features .............................................................................................. 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 7
Pin Configuration and Function Descriptions............................. 8
Typical Peformance Characteristics ............................................. 10
Terminology .................................................................................... 12
Circuit Description......................................................................... 13
REVISION HISTORY
5/06—Rev. 0 to Rev. A
Added AD7492-4................................................................Universal
Changes to Table 4............................................................................ 8
Updated Outline Dimensions ....................................................... 22
Changes to Ordering Guide .......................................................... 22
1/01—Revision 0: Initial Version
Product Highlights ....................................................................... 1
Revision History ........................................................................... 2
AD7492-5 ...................................................................................... 3
AD7492/AD7492-4 ...................................................................... 4
Timing Specifications .................................................................. 6
ESD Caution.................................................................................. 7
Rev. A | Page 2 of 24
Outline Dimensions ....................................................................... 21
Converter Operation.................................................................. 13
Typical Connection Diagram ................................................... 13
ADC Transfer Function............................................................. 13
AC Acquisition Time ................................................................. 14
DC Acquisition Time................................................................. 14
Analog Input ............................................................................... 14
Parallel Interface......................................................................... 14
Operating Modes........................................................................ 14
Power-Up..................................................................................... 16
Grounding and Layout .............................................................. 18
Power Supplies ............................................................................ 18
Microprocessor Interfacing....................................................... 18
Ordering Guide .......................................................................... 21