SBASA74B
January 2023 – May 2024
ADS9218
,
ADS9219
PRODMIX
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Thermal Information
5.4
Recommended Operating Conditions
5.5
Electrical Characteristics
5.6
Timing Requirements
5.7
Switching Characteristics
5.8
Timing Diagrams
5.9
Typical Characteristics: All Devices
5.10
Typical Characteristics: ADS9219
5.11
Typical Characteristics: ADS9218
5.12
Typical Characteristics: ADS9217
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Analog Inputs
6.3.2
Analog Input Bandwidth
6.3.3
ADC Transfer Function
6.3.4
Reference Voltage
6.3.5
Temperature Sensor
6.3.6
Data Averaging
6.3.7
Digital Down Converter
6.3.8
Data Interface
6.3.8.1
Data Frame Width
6.3.8.2
Synchronizing Multiple ADCs
6.3.8.3
Test Patterns for Data Interface
6.3.8.3.1
Fixed Pattern
6.3.8.3.2
Alternating Test Pattern
6.3.8.3.3
Digital Ramp
6.3.9
ADC Sampling Clock Input
6.4
Device Functional Modes
6.4.1
Reset
6.4.2
Power-Down Options
6.4.3
Normal Operation
6.4.4
Initialization Sequence
6.5
Programming
6.5.1
Register Write
6.5.2
Register Read
6.5.3
Multiple Devices: Daisy-Chain Topology for SPI Configuration
6.5.3.1
Register Write With Daisy-Chain
6.5.3.2
Register Read With Daisy-Chain
7
Register Map
7.1
Register Bank 0
7.2
Register Bank 1
7.3
Register Bank 2
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Data Acquisition (DAQ) Circuit for ≤20kHz Input Signal Bandwidth
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curves
8.2.2
Data Acquisition (DAQ) Circuit for ≤100kHz Input Signal Bandwidth
8.2.2.1
Design Requirements
8.2.2.2
Application Curves
8.2.3
Data Acquisition (DAQ) Circuit for ≤1MHz Input Signal Bandwidth
8.2.3.1
Design Requirements
8.2.3.2
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Documentation Support
9.1.1
Related Documentation
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
11.1
Mechanical Data
Package Options
Mechanical Data (Package|Pins)
RHA|40
MPQF135D
Thermal pad, mechanical data (Package|Pins)
RHA|40
QFND114P
Orderable Information
sbasa74b_oa
sbasa74b_pm
6
Detailed Description