SBASAX3A
May 2025 – September 2025
ADS9326
,
ADS9327
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Comparison
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Thermal Information
6.4
Recommended Operating Conditions
6.5
Electrical Characteristics
6.6
Electrical Characteristics: AVDD = 5V
6.7
Electrical Characteristics: AVDD = 3.3V
6.8
Timing Requirements
6.9
Switching Characteristics
6.10
Timing Diagrams
6.11
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Analog Inputs
7.3.2
Reference
7.3.2.1
Internal Reference
7.3.2.1.1
Selectable Internal Reference with 5V AVDD
7.3.2.2
External Reference
7.3.2.3
External Reference With External Reference Buffer
7.3.3
ADC Transfer Function
7.3.4
Data Interface
7.3.5
Programmable Data Averaging Filter
7.3.5.1
Simple Average
7.3.5.1.1
Simple Average with Noncontinuous CONVST
7.3.5.2
Moving Average
7.3.6
CRC on Output Data Interface
7.3.7
ADC Output Data Randomizer
7.3.8
Data Frame Width
7.3.9
Daisy-Chain Mode
7.3.9.1
Daisy-Clock Mode
7.4
Device Functional Modes
7.4.1
Reset
7.4.2
Normal Operation
7.4.3
Low-Latency Mode
7.4.4
CS-CONVST Short Mode
7.4.5
Register Read Mode
7.4.6
Initialization Sequence
7.5
Programming
7.5.1
SPI Frame Length for Register Operations
7.5.2
Register Map Lock
7.5.3
Register Write
7.5.4
Register Read
8
Register Map: ADS9327
8.1
Register Bank 0
8.2
Register Bank 1
8.3
Register Bank 2
9
Register Map: ADS9326
9.1
Register Bank 0
9.2
Register Bank 1
9.3
Register Bank 2
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Analog 1VPP Sine-Cosine Encoder Interface
10.2.2
Design Requirements
10.2.3
Detailed Design Procedure
10.3
Power Supply Recommendations
10.4
Layout
10.4.1
Layout Guidelines
10.4.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Revision History
13
Mechanical, Packaging, and Orderable Information
13.1
Mechanical Data
Package Options
Mechanical Data (Package|Pins)
VAE|22
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbasax3a_oa
sbasax3a_pm
Data Sheet
ADS932x
Dual, Simultaneous-Sampling, Small-Size,
16
-Bit,
5
MSPS SAR ADC