AD7400 Analog Devices, AD7400 Datasheet - Page 2

• Manufacturer Part Number: AD7400
• Description: Isolated Sigma-Delta Modulator
• Manufacturer: Analog Devices

Specifications of AD7400

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 10MSPS
• Interface: Ser
• Analog Input Type: Diff-Uni
• Ain Range: ± 0.2 V Diff,0.4 V p-p
• Adc Architecture: Sigma-Delta Modulator
• Pkg Type: SOIC

AD7400
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 7
Pin Configuration and Function Descriptions............................. 8
REVISION HISTORY
7/11—Rev. D to Rev. E
Changes to Minimum External Air Gap (Clearance) Parameter,
Table 3 and Minimum External Tracking (Creepage) Parameter,
Table 3 ................................................................................................ 5
Changes to Figure 5; Pin 1 Description, Table 8; and Pin 7
Description, Table 8.......................................................................... 8
4/11—Rev. C to Rev. D
Changes to Dynamic Input Current Parameter, Table 1 ............. 3
1/11—Rev. B to Rev. C
Changes to Features Section............................................................ 1
Changes to Input-to-Output Momentary Withstand Voltage
Parameter, Table 3, UL Column, Table 4, and Note 1, Table 4..........5
Changes to Ordering Guide...................................................................18
Timing Specifications .................................................................. 4
Insulation and Safety-Related Specifications............................ 5
Regulatory Information............................................................... 5
DIN V VDE V 0884-10 (VDE V 0884-10) Insulation
Characteristics .............................................................................. 6
ESD Caution.................................................................................. 7
Rev. E | Page 2 of 20
Typical Performance Characteristics ..............................................9
Terminology .................................................................................... 12
Theory of Operation ...................................................................... 13
Applications Information .............................................................. 17
Outline Dimensions ....................................................................... 18
9/07—Rev. A to Rev. B
Updated VDE Certification Throughout ......................................1
Changes to Table 6.............................................................................7
12/06—Rev. 0 to Rev. A
Changes to Features ..........................................................................1
Changes to Table 6.............................................................................7
Changes to Analog Input Section................................................. 13
Changes to Figure 26...................................................................... 15
1/06—Revision 0: Initial Version
Circuit Information.................................................................... 13
Analog Input ............................................................................... 13
Differential Inputs ...................................................................... 14
Digital Filter ................................................................................ 15
Grounding and Layout .............................................................. 17
Evaluating the AD7400 Performance ...................................... 17
Insulation Lifetime ..................................................................... 17
Ordering Guide .......................................................................... 18