AD7986BCPZ Analog Devices Inc, AD7986BCPZ Datasheet - Page 2

• Manufacturer Part Number: AD7986BCPZ
• Description: IC ADC 18BIT 2MSPS SAR 20LFCSP
• Manufacturer: Analog Devices Inc

Specifications of AD7986BCPZ

• Data Interface: MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Bits: 18
• Sampling Rate (per Second): 2M
• Number Of Converters: 1
• Power Dissipation (max): 34mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-VFQFN, CSP Exposed Pad
• Resolution (bits): 18bit
• Sampling Rate: 2MSPS
• Input Channel Type: Differential
• Supply Voltage Range - Analog: 2.375V To 2.625V
• Digital Ic Case Style: CSP
• No. Of Pins: 20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD7986
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Application Diagram ........................................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 6
Pin Configuration and Function Descriptions ............................. 7
Typical Performance Characteristics ............................................. 9
Terminology .................................................................................... 12
Theory of Operation ...................................................................... 13
REVISION HISTORY
3/11—Rev. A to Rev. B
Added Common-Mode Input Range Parameter, Table 2 ........... 3
8/10—Rev. 0 to Rev. A
Changes to Conversion Time: CNV Rising Edge to Data
Available (Turbo Mode/Normal Mode) Parameter, Table 4 ....... 5
Changes to Figure 32 ...................................................................... 22
4/09—Revision 0: Initial Version
Timing Specifications .................................................................. 5
ESD Caution .................................................................................. 6
Circuit Information .................................................................... 13
Converter Operation .................................................................. 13
Conversion Modes of Operation .............................................. 13
Typical Connection Diagram.................................................... 14
Rev. B | Page 2 of 28
Digital Interface .............................................................................. 17
Application Hints ........................................................................... 25
Outline Dimensions ....................................................................... 27
Analog Inputs.............................................................................. 15
Driver Amplifier Choice ........................................................... 15
Voltage Reference Input ............................................................ 16
Power Supply ............................................................................... 16
Data Reading Options ............................................................... 18
CS Mode, 3-Wire Without Busy Indicator ............................. 19
CS Mode, 3-Wire with Busy Indicator .................................... 20
CS Mode, 4-Wire Without Busy Indicator ............................. 21
CS Mode, 4-Wire with Busy Indicator .................................... 22
Chain Mode Without Busy Indicator ...................................... 23
Chain Mode with Busy Indicator ............................................. 24
Layout .......................................................................................... 25
Evaluating the AD7986 Performance ...................................... 25
Ordering Guide .......................................................................... 27