AD7942 Analog Devices, AD7942 Datasheet - Page 2

• Manufacturer Part Number: AD7942
• Manufacturer: Analog Devices

Specifications of AD7942

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 250kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p,Uni (Vref)
• Adc Architecture: SAR
• Pkg Type: CSP,SOP

AD7942
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Application Diagram ........................................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 7
Pin Configuration and Function Descriptions ............................. 8
Typical Performance Characteristics ............................................. 9
REVISION HISTORY
6/08—Rev. A to Rev. B
Changes to Features Section and General Description Section . 1
Moved Figure 2 and Figure 3 .......................................................... 6
Changes to Table 6 ............................................................................ 8
Moved Terminology Section ......................................................... 12
Changes to Figure 41 ...................................................................... 22
Changes to Ordering Guide .......................................................... 24
Timing Specifications .................................................................. 5
ESD Caution .................................................................................. 7
Rev. B | Page 2 of 24
Terminology .................................................................................... 12
Theory of Operation ...................................................................... 13
Application Hints ........................................................................... 23
Outline Dimensions ....................................................................... 24
12/07—Rev. 0 to Rev. A
Changes to Table 1 ............................................................................. 1
Changes to General Description Section ....................................... 1
Changes to Table 6 ............................................................................. 7
Changes to Table 7 ............................................................................. 8
Changes to Circuit Information Section ..................................... 13
Changes to Table 9 .......................................................................... 15
Changes to Figure 39 ...................................................................... 21
Changes to Figure 41 ...................................................................... 22
Updated Outline Dimensions ....................................................... 24
Changes to Ordering Guide .......................................................... 24
3/05—Revision 0: Initial Version
Circuit Information .................................................................... 13
Converter Operation .................................................................. 13
Typical Connection Diagram ................................................... 14
Digital Interface .......................................................................... 16
Layout .......................................................................................... 23
Evaluating the Performance of AD7942 .................................. 23
Ordering Guide .......................................................................... 24