AD7920BRMZ Analog Devices Inc, AD7920BRMZ Datasheet - Page 2

• Manufacturer Part Number: AD7920BRMZ
• Description: IC ADC 12BIT 250KSPS 8-MSOP
• Manufacturer: Analog Devices Inc

Specifications of AD7920BRMZ

• Data Interface: DSP, MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Bits: 12
• Sampling Rate (per Second): 250k
• Number Of Converters: 1
• Power Dissipation (max): 15mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Resolution (bits): 12bit
• Sampling Rate: 250kSPS
• Input Channel Type: Differential
• Supply Current: 3mA
• Digital Ic Case Style: SOP
• No. Of Pins: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD7920CBZ - BOARD EVALUATION FOR AD7920
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

AD7910/AD7920
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Specifications..................................................................................... 3
Timing Examples .............................................................................. 7
Absolute Maximum Ratings............................................................ 8
Pin Configurations and Function Descriptions ........................... 9
Typical Performance Characteristics ........................................... 10
Terminology .................................................................................... 12
Circuit Information ........................................................................ 13
Converter Operation...................................................................... 14
REVISION HISTORY
9/05—Rev. B to Rev. C
Updated Formatting ..........................................................Universal
Updated Outline Dimensions....................................................... 23
Changes to Ordering Guide.......................................................... 24
3/04—Rev. A to Rev. B
Added U.S. Patent Number ............................................................ 1
Changes to Note 5 ............................................................................ 2
Changes to Note 6 of AD7920 Specifications............................... 4
Changes to Note 1 of Timing Specifications ................................ 4
Changes to Absolute Maximum Ratings ...................................... 6
Changes to Ordering Guide............................................................ 6
AD7910 .......................................................................................... 3
AD7920 .......................................................................................... 4
Timing Specifications .................................................................. 6
Timing Example 1 ........................................................................ 7
Timing Example 2 ........................................................................ 7
ESD Caution.................................................................................. 8
Rev. C | Page 2 of 24
Modes of Operation ....................................................................... 16
Power vs. Throughput Rate........................................................... 18
Serial Interface ................................................................................ 19
Microprocessor Interfacing........................................................... 20
Application Hints ........................................................................... 22
Outline Dimensions ....................................................................... 23
8/03—Rev. 0 to Rev. A
Changes to Ordering Guide.............................................................6
Changes to Evaluating the AD7910/AD7920 Performance
Section.............................................................................................. 18
Updated Outline Dimensions ...................................................... 19
ADC Transfer Function............................................................. 14
Typical Connection Diagram ................................................... 14
Analog Input ............................................................................... 15
Digital Inputs .............................................................................. 15
Normal Mode.............................................................................. 16
Power-Down Mode .................................................................... 16
Power-Up Time .......................................................................... 16
AD7910/AD7920 to TMS320C541 Interface ......................... 20
AD7910/AD7920 to ADSP-218x.............................................. 20
AD7910/AD7920 to DSP563xx Interface ............................... 21
Grounding and Layout .............................................................. 22
Evaluating Performance ............................................................ 22
Ordering Guide .......................................................................... 24