JAJSD96A February   2017  – June 2017 ADS114S06 , ADS114S08

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 改訂履歴
  5. 5 Device Family Comparison Table
  6. 6 Pin Configuration and 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 Characteristics
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Parameter Measurement Information
    1. 8.1 Noise Performance
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Multiplexer
      2. 9.3.2  Low-Noise Programmable Gain Amplifier
        1. 9.3.2.1 PGA Input-Voltage Requirements
        2. 9.3.2.2 PGA Rail Flags
        3. 9.3.2.3 Bypassing the PGA
      3. 9.3.3  Voltage Reference
        1. 9.3.3.1 Internal Reference
        2. 9.3.3.2 External Reference
        3. 9.3.3.3 Reference Buffers
      4. 9.3.4  Clock Source
      5. 9.3.5  Delta-Sigma Modulator
      6. 9.3.6  Digital Filter
        1. 9.3.6.1 Low-Latency Filter
          1. 9.3.6.1.1 Low-Latency Filter Frequency Response
          2. 9.3.6.1.2 Data Conversion Time for the Low-Latency Filter
        2. 9.3.6.2 Sinc3 Filter
          1. 9.3.6.2.1 Sinc3 Filter Frequency Response
          2. 9.3.6.2.2 Data Conversion Time for the Sinc3 Filter
        3. 9.3.6.3 Note on Conversion Time
        4. 9.3.6.4 50-Hz and 60-Hz Line Cycle Rejection
        5. 9.3.6.5 Global Chop Mode
      7. 9.3.7  Excitation Current Sources (IDACs)
      8. 9.3.8  Bias Voltage Generation
      9. 9.3.9  System Monitor
        1. 9.3.9.1 Internal Temperature Sensor
        2. 9.3.9.2 Power Supply Monitors
        3. 9.3.9.3 Burn-Out Current Sources
      10. 9.3.10 Status Register
        1. 9.3.10.1 POR Flag
        2. 9.3.10.2 RDY Flag
        3. 9.3.10.3 PGA Output Voltage Rail Monitors
        4. 9.3.10.4 Reference Monitor
      11. 9.3.11 General-Purpose Inputs and Outputs (GPIOs)
      12. 9.3.12 Low-Side Power Switch
      13. 9.3.13 Cyclic Redundancy Check (CRC)
      14. 9.3.14 Calibration
        1. 9.3.14.1 Offset Calibration
        2. 9.3.14.2 Gain Calibration
    4. 9.4 Device Functional Modes
      1. 9.4.1 Reset
        1. 9.4.1.1 Power-On Reset
        2. 9.4.1.2 RESET Pin
        3. 9.4.1.3 Reset by Command
      2. 9.4.2 Power-Down Mode
      3. 9.4.3 Standby Mode
      4. 9.4.4 Conversion Modes
        1. 9.4.4.1 Continuous Conversion Mode
        2. 9.4.4.2 Single-Shot Conversion Mode
        3. 9.4.4.3 Programmable Conversion Delay
    5. 9.5 Programming
      1. 9.5.1 Serial Interface
        1. 9.5.1.1 Chip Select (CS)
        2. 9.5.1.2 Serial Clock (SCLK)
        3. 9.5.1.3 Serial Data Input (DIN)
        4. 9.5.1.4 Serial Data Output and Data Ready (DOUT/DRDY)
        5. 9.5.1.5 Data Ready (DRDY)
        6. 9.5.1.6 Timeout
      2. 9.5.2 Data Format
      3. 9.5.3 Commands
        1. 9.5.3.1  NOP
        2. 9.5.3.2  WAKEUP
        3. 9.5.3.3  POWERDOWN
        4. 9.5.3.4  RESET
        5. 9.5.3.5  START
        6. 9.5.3.6  STOP
        7. 9.5.3.7  SYOCAL
        8. 9.5.3.8  SYGCAL
        9. 9.5.3.9  SFOCAL
        10. 9.5.3.10 RDATA
        11. 9.5.3.11 RREG
        12. 9.5.3.12 WREG
      4. 9.5.4 Reading Data
        1. 9.5.4.1 Read Data Direct
        2. 9.5.4.2 Read Data by RDATA Command
        3. 9.5.4.3 Sending Commands When Reading Data
      5. 9.5.5 Interfacing with Multiple Devices
    6. 9.6 Register Map
      1. 9.6.1 Configuration Registers
        1. 9.6.1.1  Device ID Register (address = 00h) [reset = xxh]
        2. 9.6.1.2  Device Status Register (address = 01h) [reset = 80h]
        3. 9.6.1.3  Input Multiplexer Register (address = 02h) [reset = 01h]
        4. 9.6.1.4  Gain Setting Register (address = 03h) [reset = 00h]
        5. 9.6.1.5  Data Rate Register (address = 04h) [reset = 14h]
        6. 9.6.1.6  Reference Control Register (address = 05h) [reset = 10h]
        7. 9.6.1.7  Excitation Current Register 1 (address = 06h) [reset = 00h]
        8. 9.6.1.8  Excitation Current Register 2 (address = 07h) [reset = FFh]
        9. 9.6.1.9  Sensor Biasing Register (address = 08h) [reset = 00h]
        10. 9.6.1.10 System Control Register (address = 09h) [reset = 10h]
        11. 9.6.1.11 Reserved Register (address = 0Ah) [reset = 00h]
        12. 9.6.1.12 Offset Calibration Register 1 (address = 0Bh) [reset = 00h]
        13. 9.6.1.13 Offset Calibration Register 2 (address = 0Ch) [reset = 00h]
        14. 9.6.1.14 Reserved Register (address = 0Dh) [reset = 00h]
        15. 9.6.1.15 Gain Calibration Register 1 (address = 0Eh) [reset = 00h]
        16. 9.6.1.16 Gain Calibration Register 2 (address = 0Fh) [reset = 40h]
        17. 9.6.1.17 GPIO Data Register (address = 10h) [reset = 00h]
        18. 9.6.1.18 GPIO Configuration Register (address = 11h) [reset = 00h]
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Serial Interface Connections
      2. 10.1.2 Analog Input Filtering
      3. 10.1.3 External Reference and Ratiometric Measurements
      4. 10.1.4 Establishing a Proper Input Voltage
      5. 10.1.5 Unused Inputs and Outputs
      6. 10.1.6 Pseudo Code Example
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Register Settings
      3. 10.2.3 Application Curves
    3. 10.3 Do's and Don'ts
  11. 11Power Supply Recommendations
    1. 11.1 Power Supplies
    2. 11.2 Power-Supply Sequencing
    3. 11.3 Power-On Reset
    4. 11.4 Power-Supply Decoupling
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13デバイスおよびドキュメントのサポート
    1. 13.1 デバイス・サポート
      1. 13.1.1 開発サポート
    2. 13.2 ドキュメントのサポート
      1. 13.2.1 関連資料
    3. 13.3 関連リンク
    4. 13.4 ドキュメントの更新通知を受け取る方法
    5. 13.5 コミュニティ・リソース
    6. 13.6 商標
    7. 13.7 静電気放電に関する注意事項
    8. 13.8 Glossary
  14. 14メカニカル、パッケージ、および注文情報

6 Pin Configuration and Functions

RHB Package
32-Pin VQFN
Top View
PBS Package
32-Pin TQFP
Top View

NOTE:

The analog input functions (AIN6–AIN11) are not available on pins 19 to 22, 31, and 32 for the ADS114S06.

Pin Functions

PIN FUNCTION DESCRIPTION(1)
NO. NAME
1 AINCOM Analog input Common analog input for single-ended measurements
2 AIN5 Analog input Analog input 5
3 AIN4 Analog input Analog input 4
4 AIN3 Analog input Analog input 3
5 AIN2 Analog input Analog input 2
6 AIN1 Analog input Analog input 1
7 AIN0 Analog input Analog input 0
8 START/SYNC Digital input Start conversion
9 CS Digital input Chip select; active low
10 DIN Digital input Serial data input
11 SCLK Digital input Serial clock input
12 DOUT/DRDY Digital output Serial data output combined with data ready; active low
13 DRDY Digital output Data ready; active low
14 DGND Digital ground Digital ground
15 IOVDD Digital supply Digital I/O power supply.
In case IOVDD is not tied to DVDD, connect a 100-nF (or larger) capacitor to DGND.
16 DVDD Digital supply Digital core power supply. Connect a 100-nF (or larger) capacitor to DGND.
17 CLK Digital input External clock input. Connect to DGND to use the internal oscillator.
18 RESET Digital input Reset; active low
19 GPIO3/AIN11 Analog input/output General-purpose I/O(2); analog input 11 (ADS114S08 only)
20 GPIO2/AIN10 Analog input/output General-purpose I/O(2); analog input 10 (ADS114S08 only)
21 GPIO1/AIN9 Analog input/output General-purpose I/O(2); analog input 9 (ADS114S08 only)
22 GPIO0/AIN8 Analog input/output General-purpose I/O(2); analog input 8 (ADS114S08 only)
23 REFOUT Analog output Positive voltage reference output.
Connect a 1-µF to 47-µF capacitor to REFCOM if the internal voltage reference is enabled.
24 REFCOM Analog output Negative voltage reference output. Connect to AVSS.
25 NC — Leave unconnected or connect to AVSS
26 AVDD Analog supply Positive analog power supply. Connect a 330-nF (or larger) capacitor to AVSS.
27 AVSS Analog supply Negative analog power supply
28 AVSS-SW Analog supply Negative analog power supply; low-side switch. Connect to AVSS.
29 REFN0 Analog input Negative external reference input 0
30 REFP0 Analog input Positive external reference input 0
31 REFN1/AIN7 Analog input Negative external reference input 1; analog input 7 (ADS114S08 only)
32 REFP1/AIN6 Analog input Positive external reference input 1; analog input 6 (ADS114S08 only)
Pad Thermal pad — RHB package only. Thermal power pad. Connect to AVSS.
(1) See the Unused Inputs and Outputs section for details on how to connect unused pins.
(2) General-purpose inputs and outputs use logic levels based on the analog supply.