JAJSIU8B
June 2015 – April 2020
ADS131E08S
PRODUCTION DATA.
1
特長
2
アプリケーション
電源アプリケーション:3 相電圧および電流の接続
3
説明
4
改訂履歴
5
Device Comparison
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
7.7
Switching Characteristics
7.8
Typical Characteristics
8
Parameter Measurement Information
8.1
Noise Measurements
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Electromagnetic Interference (EMI) Filter
9.3.2
Input Multiplexer
9.3.2.1
Device Noise Measurements
9.3.2.2
Test Signals (TestP and TestN)
9.3.2.3
Temperature Sensor (TempP, TempN)
9.3.2.4
Power-Supply Measurements (MVDDP, MVDDN)
9.3.3
Analog Input
9.3.4
PGA Settings and Input Range
9.3.4.1
Input Common-Mode Range
9.3.5
ΔΣ Modulator
9.3.6
Clock
9.3.7
Digital Decimation Filter
9.3.8
Voltage Reference
9.3.9
Input Out-of-Range Detection
9.3.10
General-Purpose Digital I/O (GPIO)
9.4
Device Functional Modes
9.4.1
Power-Down
9.4.2
Reset
9.4.3
Conversion Mode
9.4.3.1
START Pin Low-to-High Transition or START Command Sent
9.4.3.2
Input Signal Step
9.4.3.3
Continuous Conversion Mode
9.5
Programming
9.5.1
SPI Interface
9.5.1.1
Chip Select (CS)
9.5.1.2
Serial Clock (SCLK)
9.5.1.3
Data Input (DIN)
9.5.1.4
Data Output (DOUT)
9.5.1.5
Data Ready (DRDY)
9.5.2
Data Retrieval
9.5.2.1
Status Word
9.5.2.2
Readback Length
9.5.2.3
Data Format
9.5.3
SPI Command Definitions
9.5.3.1
WAKEUP: Exit STANDBY Mode
9.5.3.2
STANDBY: Enter STANDBY Mode
9.5.3.3
RESET: Reset Registers to Default Values
9.5.3.4
START: Start Conversions
9.5.3.5
STOP: Stop Conversions
9.5.3.6
OFFSETCAL: Channel Offset Calibration
9.5.3.7
RDATAC: Start Read Data Continuous Mode
9.5.3.8
SDATAC: Stop Read Data Continuous Mode
9.5.3.9
RDATA: Read Data
9.5.3.10
RREG: Read from Register
9.5.3.11
WREG: Write to Register
9.5.3.12
Sending Multibyte Commands
9.6
Register Map
9.6.1
Register Descriptions
9.6.1.1
ID: ID Control Register (Factory-Programmed, Read-Only) (address = 00h) [reset = D2h]
Table 11.
ID: ID Control Register Field Descriptions
9.6.1.2
CONFIG1: Configuration Register 1 (address = 01h) [reset = 94h]
Table 12.
CONFIG1: Configuration Register 1 Field Descriptions
9.6.1.3
CONFIG2: Configuration Register 2 (address = 02h) [reset = 00h]
Table 14.
CONFIG2: Configuration Register 2 Field Descriptions
9.6.1.4
CONFIG3: Configuration Register 3 (address = 03h) [reset = E0h]
Table 15.
CONFIG3: Configuration Register 3 Field Descriptions
9.6.1.5
FAULT: Fault Detect Control Register (address = 04h) [reset = 00h]
Table 16.
FAULT: Fault Detect Control Register Field Descriptions
9.6.1.6
CHnSET: Individual Channel Settings (address = 05h to 0Ch) [reset = 10h]
Table 17.
CHnSET: Individual Channel Settings Field Descriptions
9.6.1.7
FAULT_STATP: Fault Detect Positive Input Status (address = 12h) [reset = 00h]
Table 18.
FAULT_STATP: Fault Detect Positive Input Status Field Descriptions
9.6.1.8
FAULT_STATN: Fault Detect Negative Input Status (address = 13h) [reset = 00h]
Table 19.
FAULT_STATN: Fault Detect Negative Input Status Field Descriptions
9.6.1.9
GPIO: General-Purpose IO Register (address = 14h) [reset = 0Fh]
Table 20.
GPIO: General-Purpose IO Register Field Descriptions
10
Application and Implementation
10.1
Application Information
10.1.1
Multiple Device Configuration
10.1.1.1
Synchronizing Multiple Devices
10.1.1.2
Standard Configuration
10.1.1.3
Daisy-Chain Configuration
10.1.2
Power Monitoring Specific Applications
10.1.3
Current Sensing
10.1.4
Voltage Sensing
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.3
Application Curves
10.3
Initialization Set Up
10.3.1
Setting the Device Up for Basic Data Capture
11
Power Supply Recommendations
11.1
Power-Up Timing
11.2
Recommended External Capacitor Values
11.3
Device Connections for Unipolar Power Supplies
11.4
Device Connections for Bipolar Power Supplies
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
デバイスおよびドキュメントのサポート
13.1
ドキュメントのサポート
13.1.1
関連資料
13.2
サポート・リソース
13.3
商標
13.4
静電気放電に関する注意事項
13.5
Glossary
14
メカニカル、パッケージ、および注文情報
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
PAG|64
MTQF006A
サーマルパッド・メカニカル・データ
PAG|64
QFND323A
発注情報
jajsiu8b_oa
13.1.1
関連資料
関連資料については、以下を参照してください。
テキサス・インスツルメンツ、
『ADS131E0x 4-, 6-, and 8-Channel, 24-Bit, Simultaneously-Sampling, Delta-Sigma ADC』
データシート (英語)
テキサス・インスツルメンツ、
『REF50xx 低ノイズ、超低ドリフト、高精度基準電圧』
データシート
テキサス・インスツルメンツ、
『気中遮断器 (ACB) 用の高分解能、高速スタートアップのデルタ-シグマ ADC ベース AFE のリファレンス・デザイン』
リファレンス・ガイド