AD7940-DBRD Analog Devices Inc, AD7940-DBRD Datasheet - Page 2

• Manufacturer Part Number: AD7940-DBRD
• Description: BOARD EVAL FOR AD7940 STAMP SPI
• Manufacturer: Analog Devices Inc

Specifications of AD7940-DBRD

• Number Of Adc's: 1
• Number Of Bits: 14
• Sampling Rate (per Second): 100k
• Data Interface: Serial
• Inputs Per Adc: 1 Single Ended
• Input Range: 0 ~ Vdd
• Power (typ) @ Conditions: 17mW @ 100kSPS & 5 V
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7940
• Lead Free Status / RoHS Status: Lead free / RoHS non-compliant

AD7940
TABLE OF CONTENTS
Specifications..................................................................................... 3
Timing Specifications....................................................................... 5
Absolute Maximum Ratings............................................................ 6
Pin Configurations and Function Descriptions ........................... 7
Terminology ...................................................................................... 8
Typical Performance Characteristics ............................................. 9
Circuit Information ........................................................................ 11
ADC Transfer Function ................................................................. 12
Modes of Operation ....................................................................... 13
REVISION HISTORY
6/04—Revision 0: Initial Version
ESD Caution.................................................................................. 6
Converter Operation.................................................................. 11
Analog Input ............................................................................... 11
Typical Connection Diagram ................................................... 12
Rev. 0 | Page 2 of 20
Power vs. Throughput Rate ........................................................... 15
Serial Interface ................................................................................ 16
Microprocessor Interfacing........................................................... 17
Application Hints ........................................................................... 19
Outline Dimensions ....................................................................... 20
Normal Mode.............................................................................. 13
Power-Down Mode.................................................................... 14
AD7940 to TMS320C541 .......................................................... 17
AD7940 to ADSP-218x.............................................................. 17
AD7940 to DSP563xx ................................................................ 18
Grounding and Layout .............................................................. 19
Evaluating the AD7940 Performance ...................................... 19
Ordering Guide .......................................................................... 20