AD7453 Analog Devices, AD7453 Datasheet - Page 2

• Manufacturer Part Number: AD7453
• Description: Pseudo Differential, 555 kSPS, 12-Bit A/D Converter in 8-Lead SOT-23
• Manufacturer: Analog Devices

Specifications of AD7453

• 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

AD7453
TABLE OF CONTENTS
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 6
Pin Configuration and Function Descriptions............................. 7
Terminology ...................................................................................... 8
AD7453–Typical Performance Characteristics ............................ 9
Circuit Information ........................................................................ 11
REVISION HISTORY
2/04—Data Sheet changed from Rev. A to Rev. B
Added Patent Note ....................................................................... 1
1/04—Data Sheet changed from Rev. 0 to Rev. A
Updated Format..............................................................Universal
Changes to General Description ................................................ 1
Changes to Specifications ............................................................ 3
Changes to Timing Specifications .............................................. 5
Changes to Table 4........................................................................ 7
Replaced Figures 11, 12, 13........................................................ 10
Changes to Typical Connection Diagram section ................. 12
Change to Figure 18 ................................................................... 12
Changes to Reference Section................................................... 13
Changes to Timing Example 1.................................................. 14
8/03—Rev. 0: Initial Version
Timing Specifications .................................................................. 5
ESD Caution.................................................................................. 6
Converter Operation.................................................................. 11
ADC Transfer Function............................................................. 11
Typical Connection Diagram ................................................... 12
The Analog Input........................................................................ 12
Digital Inputs .............................................................................. 13
Rev. B | Page 2 of 20
Modes of Operation ....................................................................... 15
Outline Dimensions ....................................................................... 20
Reference ..................................................................................... 13
Serial Interface ............................................................................ 13
Normal Mode.............................................................................. 15
Power-Down Mode.................................................................... 15
Power-Up Time .......................................................................... 16
Power vs. Throughput Rate....................................................... 17
Microprocessor and DSP Interfacing ...................................... 17
Application Hints ....................................................................... 19
Evaluating the AD7453’s Performance .................................... 19
Ordering Guide .......................................................................... 20