AD7452 Analog Devices, AD7452 Datasheet - Page 2

• Manufacturer Part Number: AD7452
• Description: Differential Input, 555 kSPS, 12-Bit A/D Converter in 8-Lead SOT-23
• Manufacturer: Analog Devices

Specifications of AD7452

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 555kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: SOT

AD7452
TABLE OF CONTENTS
AD7452–Specifications.................................................................... 3
Absolute Maximum Ratings............................................................ 6
Pin Configuration and Function Descriptions............................. 7
Terminology ...................................................................................... 8
AD7452–Typical Performance Characteristics .......................... 10
Circuit Information ........................................................................ 13
REVISION HISTORY
2/04—Data Sheet changed from Rev. A to Rev. B
Added Patent Note ....................................................................... 1
2/04—Data Sheet changed from Rev. 0 to Rev. A
Updated Formatting .......................................................Universal
Changes to Applications section................................................. 1
Changes to General Description ................................................ 1
Changes to Specifications ............................................................ 4
Changes to Timing Specifications .............................................. 5
Changes to Timing Example ..................................................... 19
9/03—Revision 0: Initial Version
Timing Specifications .................................................................. 5
ESD Caution.................................................................................. 6
Converter Operation.................................................................. 13
ADC Transfer Function............................................................. 13
Typical Connection Diagram ................................................... 14
Analog Input ............................................................................... 14
Driving Differential Inputs........................................................ 16
Digital Inputs .............................................................................. 18
Rev. B | Page 2 of 28
Modes of Operation ....................................................................... 20
Outline Dimensions ....................................................................... 25
Reference ..................................................................................... 18
Single-Ended Operation............................................................ 18
Serial Interface ............................................................................ 19
Normal Mode.............................................................................. 20
Power-Down Mode .................................................................... 20
Power-Up Time .......................................................................... 21
Power vs. Throughput Rate....................................................... 22
Microprocessor and DSP Interfacing ...................................... 22
Application Hints ....................................................................... 24
Evaluating the AD7452’s Performance .................................... 24
Ordering Guide .......................................................................... 25