AD7934 Analog Devices, AD7934 Datasheet - Page 2

• Manufacturer Part Number: AD7934
• Description: 4-Channel, 1.5 MSPS, 12-Bit Parallel ADC with a Sequencer
• Manufacturer: Analog Devices

Specifications of AD7934

• Resolution (bits): 12bit
• # Chan: 4
• Sample Rate: 1.5MSPS
• Interface: Byte,Par
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (2Vref) p-p,5V p-p,Uni (Vref),Uni (Vref) x 2,Uni 2.5V,Uni 5.0V
• Adc Architecture: SAR
• Pkg Type: SOP

AD7933/AD7934
TABLE OF CONTENTS
Features .............................................................................................. 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 8
Pin Configuration and Function Descriptions............................. 9
Typical Performance Characteristics ........................................... 11
Terminology .................................................................................... 13
Control Register.............................................................................. 15
Circuit Information ........................................................................ 17
REVISION HISTORY
2/07—Rev. A to Rev B
Changes to Timing Specifications .................................................. 7
Changes to Figure 13...................................................................... 12
12/05—Rev. 0 to Rev. A
Replaced Figures .................................................................Universal
Changes to General Description .................................................... 1
Changes to Product Highlights....................................................... 1
Added Table 1.................................................................................... 1
Changes to Specifications Section.................................................. 3
Changes to Table 5............................................................................ 9
Changes to Terminology Section.................................................. 13
Changes to Control Register Section ........................................... 15
Changes to Circuit Information Section ..................................... 17
Changes to Application Hints Section......................................... 29
1/05—Revision 0: Initial Version
AD7933 Specifications................................................................. 3
AD7934 Specifications................................................................. 5
Timing Specifications .................................................................. 7
ESD Caution.................................................................................. 8
Sequencer Operation ................................................................. 16
Rev. B | Page 2 of 32
Application Hints ........................................................................... 29
Outline Dimensions ....................................................................... 30
Converter Operation.................................................................. 17
ADC Transfer Function............................................................. 17
Typical Connection Diagram ................................................... 18
Analog Input Structure.............................................................. 18
Analog Inputs ............................................................................. 19
Analog Input Selection .............................................................. 21
Reference ..................................................................................... 22
Parallel Interface......................................................................... 23
Power Modes of Operation ....................................................... 26
Power vs. Throughput Rate....................................................... 27
Microprocessor Interfacing....................................................... 27
Grounding and Layout .............................................................. 29
Evaluating the AD7933/AD7934 Performance...................... 29
Ordering Guide .......................................................................... 30