AD7934-6 Analog Devices, AD7934-6 Datasheet - Page 2

• Manufacturer Part Number: AD7934-6
• Description: 4-Channel, 625 kSPS, 12-Bit Parallel ADC with a Sequencer
• Manufacturer: Analog Devices

Specifications of AD7934-6

• Resolution (bits): 12bit
• # Chan: 4
• Sample Rate: 625kSPS
• Interface: Par
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: Uni (Vref),Uni (Vref) x 2
• Adc Architecture: SAR
• Pkg Type: SOP

AD7934-6
TABLE OF CONTENTS
Features .............................................................................................. 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 6
Pin Configuration and Function Descriptions............................. 7
Typical Performance Characteristics ............................................. 9
Terminology .................................................................................... 11
Control Register.............................................................................. 13
Circuit Information ........................................................................ 15
REVISION HISTORY
2/07—Rev. A to Rev. B
Updated Format..................................................................Universal
Changes to Figure 13...................................................................... 10
Changes to Sequencer Operation Section................................... 14
Changes to Figure 34...................................................................... 21
10/05—Rev. 0 to Rev. A
Changes to Product Highlights....................................................... 1
Inserted Table 1................................................................................. 1
Changes to Specifications ................................................................ 3
Changes to Timing Specifications .................................................. 5
Changes to Pin Function Descriptions.......................................... 7
Added Writing to the Control Register to
Program the Sequencer Section.................................................... 14
Changes to the Analog Inputs Section......................................... 17
Changes to the Grounding and Layout Section ......................... 27
1/05—Revision 0: Initial Version
Timing Specifications .................................................................. 5
ESD Caution.................................................................................. 6
Sequencer Operation ................................................................. 14
Converter Operation.................................................................. 15
Rev. B | Page 2 of 28
Application Hints ........................................................................... 27
Outline Dimensions ....................................................................... 28
ADC Transfer Function............................................................. 15
Typical Connection Diagram ................................................... 16
Analog Input Structure.............................................................. 16
Analog Input Configurations ................................................... 17
Analog Input Selection .............................................................. 19
Reference ..................................................................................... 20
Parallel Interface......................................................................... 21
Power Modes of Operation ....................................................... 24
Power vs. Throughput Rate....................................................... 25
Microprocessor Interfacing....................................................... 25
Grounding and Layout .............................................................. 27
Evaluating the AD7934-6 Performance .................................. 27
Ordering Guide .......................................................................... 28