SBAS937B
September 2018 – December 2018
ADS1278-SP
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
4
Revision History
5
Description (continued)
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements: SPI Format
7.7
Timing Requirements: Frame-Sync Format
7.8
Quality Conformance Inspection
7.9
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Sampling Aperture Matching
8.3.2
Frequency Response
8.3.2.1
High-Speed, Low-Power, And Low-Speed Modes
8.3.2.2
High-Resolution Mode
8.3.3
Phase Response
8.3.4
Settling Time
8.3.5
Data Format
8.3.6
Analog Inputs (AINP, AINN)
8.3.7
Voltage Reference Inputs (VREFP, VREFN)
8.3.8
Clock Input (CLK)
8.3.9
Mode Selection (MODE)
8.3.10
Synchronization (SYNC)
8.3.11
Power-Down (PWDN)
8.3.12
Format[2:0]
8.3.13
Serial Interface Protocols
8.3.14
SPI Serial Interface
8.3.14.1
SCLK
8.3.14.2
DRDY/FSYNC (SPI Format)
8.3.14.3
DOUT
8.3.14.4
DIN
8.3.15
Frame-Sync Serial Interface
8.3.15.1
SCLK
8.3.15.2
DRDY/FSYNC (Frame-Sync Format)
8.3.15.3
DOUT
8.3.15.4
DIN
8.3.16
DOUT Modes
8.3.16.1
TDM Mode
8.3.16.2
TDM Mode, Fixed-Position Data
8.3.16.3
TDM Mode, Dynamic Position Data
8.3.16.4
Discrete Data Output Mode
8.3.17
Daisy-Chaining
8.3.18
Modulator Output
8.3.19
Pin Test Using Test[1:0] Inputs
8.3.20
VCOM Output
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curve
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Community Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
HFQ|84
MCQF017A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbas937b_oa
11.2
Layout Example
Figure 86.
ADS1278-SP Layout Example