ZHCSEJ3B June   2015  – April 2020 ADS131E08S

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
    1.     电源应用：三相电压和电流连接
  3. 3 说明
  4. 4 修订历史记录
  5. 5 Device Comparison
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Parameter Measurement Information
    1. 8.1 Noise Measurements
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Electromagnetic Interference (EMI) Filter
      2. 9.3.2  Input Multiplexer
        1. 9.3.2.1 Device Noise Measurements
        2. 9.3.2.2 Test Signals (TestP and TestN)
        3. 9.3.2.3 Temperature Sensor (TempP, TempN)
        4. 9.3.2.4 Power-Supply Measurements (MVDDP, MVDDN)
      3. 9.3.3  Analog Input
      4. 9.3.4  PGA Settings and Input Range
        1. 9.3.4.1 Input Common-Mode Range
      5. 9.3.5  ΔΣ Modulator
      6. 9.3.6  Clock
      7. 9.3.7  Digital Decimation Filter
      8. 9.3.8  Voltage Reference
      9. 9.3.9  Input Out-of-Range Detection
      10. 9.3.10 General-Purpose Digital I/O (GPIO)
    4. 9.4 Device Functional Modes
      1. 9.4.1 Power-Down
      2. 9.4.2 Reset
      3. 9.4.3 Conversion Mode
        1. 9.4.3.1 START Pin Low-to-High Transition or START Command Sent
        2. 9.4.3.2 Input Signal Step
        3. 9.4.3.3 Continuous Conversion Mode
    5. 9.5 Programming
      1. 9.5.1 SPI Interface
        1. 9.5.1.1 Chip Select (CS)
        2. 9.5.1.2 Serial Clock (SCLK)
        3. 9.5.1.3 Data Input (DIN)
        4. 9.5.1.4 Data Output (DOUT)
        5. 9.5.1.5 Data Ready (DRDY)
      2. 9.5.2 Data Retrieval
        1. 9.5.2.1 Status Word
        2. 9.5.2.2 Readback Length
        3. 9.5.2.3 Data Format
      3. 9.5.3 SPI Command Definitions
        1. 9.5.3.1  WAKEUP: Exit STANDBY Mode
        2. 9.5.3.2  STANDBY: Enter STANDBY Mode
        3. 9.5.3.3  RESET: Reset Registers to Default Values
        4. 9.5.3.4  START: Start Conversions
        5. 9.5.3.5  STOP: Stop Conversions
        6. 9.5.3.6  OFFSETCAL: Channel Offset Calibration
        7. 9.5.3.7  RDATAC: Start Read Data Continuous Mode
        8. 9.5.3.8  SDATAC: Stop Read Data Continuous Mode
        9. 9.5.3.9  RDATA: Read Data
        10. 9.5.3.10 RREG: Read from Register
        11. 9.5.3.11 WREG: Write to Register
        12. 9.5.3.12 Sending Multibyte Commands
    6. 9.6 Register Map
      1. 9.6.1 Register Descriptions
        1. 9.6.1.1 ID: ID Control Register (Factory-Programmed, Read-Only) (address = 00h) [reset = D2h]
          1. Table 11. ID: ID Control Register Field Descriptions
        2. 9.6.1.2 CONFIG1: Configuration Register 1 (address = 01h) [reset = 94h]
          1. Table 12. CONFIG1: Configuration Register 1 Field Descriptions
        3. 9.6.1.3 CONFIG2: Configuration Register 2 (address = 02h) [reset = 00h]
          1. Table 14. CONFIG2: Configuration Register 2 Field Descriptions
        4. 9.6.1.4 CONFIG3: Configuration Register 3 (address = 03h) [reset = E0h]
          1. Table 15. CONFIG3: Configuration Register 3 Field Descriptions
        5. 9.6.1.5 FAULT: Fault Detect Control Register (address = 04h) [reset = 00h]
          1. Table 16. FAULT: Fault Detect Control Register Field Descriptions
        6. 9.6.1.6 CHnSET: Individual Channel Settings (address = 05h to 0Ch) [reset = 10h]
          1. Table 17. CHnSET: Individual Channel Settings Field Descriptions
        7. 9.6.1.7 FAULT_STATP: Fault Detect Positive Input Status (address = 12h) [reset = 00h]
          1. Table 18. FAULT_STATP: Fault Detect Positive Input Status Field Descriptions
        8. 9.6.1.8 FAULT_STATN: Fault Detect Negative Input Status (address = 13h) [reset = 00h]
          1. Table 19. FAULT_STATN: Fault Detect Negative Input Status Field Descriptions
        9. 9.6.1.9 GPIO: General-Purpose IO Register (address = 14h) [reset = 0Fh]
          1. Table 20. GPIO: General-Purpose IO Register Field Descriptions
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Multiple Device Configuration
        1. 10.1.1.1 Synchronizing Multiple Devices
        2. 10.1.1.2 Standard Configuration
        3. 10.1.1.3 Daisy-Chain Configuration
      2. 10.1.2 Power Monitoring Specific Applications
      3. 10.1.3 Current Sensing
      4. 10.1.4 Voltage Sensing
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Curves
    3. 10.3 Initialization Set Up
      1. 10.3.1 Setting the Device Up for Basic Data Capture
  11. 11Power Supply Recommendations
    1. 11.1 Power-Up Timing
    2. 11.2 Recommended External Capacitor Values
    3. 11.3 Device Connections for Unipolar Power Supplies
    4. 11.4 Device Connections for Bipolar Power Supplies
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13器件和文档支持
    1. 13.1 文档支持
      1. 13.1.1 相关文档
    2. 13.2 支持资源
    3. 13.3 商标
    4. 13.4 静电放电警告
    5. 13.5 Glossary
  14. 14机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6 Pin Configuration and Functions

PAG Package
64-Pin TQFP
Top View
ADS131E08S po_sbas705.gif

Pin Functions

PIN TYPE DESCRIPTION
NAME NO.
AVDD 19, 21, 22, 56, 59 Supply Analog supply; decouple each AVDD pin to AVSS with a 1-µF capacitor
AVDD1 54 Supply Charge pump analog supply; decouple AVDD1 to AVSS1 with a 1-µF capacitor
AVSS 20, 23, 32, 57, 58 Supply Analog ground
AVSS1 53 Supply Charge pump analog ground; decouple AVDD1 to AVSS1 with a 1-µF capacitor
CS 39 Digital input Serial peripheral interface (SPI) chip select; active low
CLK 37 Digital input Master clock input; connect to DGND if unused
CLKSEL 52 Digital input Master clock select
DAISY_IN 41 Digital input Daisy-chain input; connect to DGND if unused
DGND 33, 49, 51 Supply Digital ground
DIN 34 Digital input SPI data input
DOUT 43 Digital output SPI data output
DRDY 47 Digital output Data ready; active low; connect to DGND with a 10-kΩ resistor if unused
DVDD 48, 50 Supply Digital power supply; decouple each DVDD pin to DGND with a 1-µF capacitor
GPIO1 42 Digital input/output General-purpose input/output pin 1; connect to DGND with a 10-kΩ resistor if unused
GPIO2 44 Digital input/output General-purpose input/output pin 2; connect to DGND with a 10-kΩ resistor if unused
GPIO3 45 Digital input/output General-purpose input/output pin 3; connect to DGND with a 10-kΩ resistor if unused
GPIO4 46 Digital input/output General-purpose input/output pin 4; connect to DGND with a 10-kΩ resistor if unused
IN1N(1) 15 Analog input Negative analog input 1
IN1P(1) 16 Analog input Positive analog input 1
IN2N(1) 13 Analog input Negative analog input 2
IN2P(1) 14 Analog input Positive analog input 2
IN3N(1) 11 Analog input Negative analog input 3
IN3P(1) 12 Analog input Positive analog input 3
IN4N(1) 9 Analog input Negative analog input 4
IN4P(1) 10 Analog input Positive analog input 4
IN5N(1) 7 Analog input Negative analog input 5
IN5P(1) 8 Analog input Positive analog input 5
IN6N(1) 5 Analog input Negative analog input 6
IN6P(1) 6 Analog input Positive analog input 6
IN7N(1) 3 Analog input Negative analog input 7
IN7P(1) 4 Analog input Positive analog input 7
IN8N(1) 1 Analog input Negative analog input 8
IN8P(1) 2 Analog input Positive analog input 8
NC 27, 29, 62, 64 — No connection, leave floating; can be connected to AVDD or AVSS with a 10-kΩ or higher resistor
OPAMPN 61 Analog input Op amp inverting input; leave floating if unused and power-down the op amp
OPAMPOUT 63 Analog output Op amp output; leave floating if unused and power-down the op amp
OPAMPP 60 Analog input Op amp noninverting input; leave floating if unused and power-down the op amp
PWDN 35 Digital input Power-down; active low
RESET 36 Digital input System reset; active low
RESV1 31 Digital input Reserved for future use; must tie to logic low; connect to DGND
SCLK 40 Digital input SPI clock
START 38 Digital input Start conversion
TESTN(1) 18 Analog input/output Test signal, negative pin; connect to DGND with a 10-kΩ resistor if unused
TESTP(1) 17 Analog input/output Test signal, positive pin; connect to DGND with a 10-kΩ resistor if unused
VCAP1 28 Analog output Analog bypass capacitor; connect a 470-pF capacitor to AVSS
VCAP2 30 Analog output Analog bypass capacitor; connect a 270-nF capacitor to AVSS
VCAP3 55 Analog output Analog bypass capacitor; connect a 270-nF capacitor to AVSS
VCAP4 26 Analog output Analog bypass capacitor; connect a 270-nF capacitor to AVSS
VREFN 25 Analog input Negative reference voltage; connect to AVSS
VREFP 24 Analog output Positive reference voltage output; connect a 330-nF capacitor to VREFN
(1) Connect any unused or powered down analog input pins to AVDD.
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