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  • ADS101x具有内部基准、振荡器和可编程比较器且兼容 I2C 的超小型、低功耗 3.3kSPS、12 位 ADC

    • ZHCSHA6F May   2009  – January 2025 ADS1013 , ADS1014 , ADS1015

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  • ADS101x具有内部基准、振荡器和可编程比较器且兼容 I2C 的超小型、低功耗 3.3kSPS、12 位 ADC
  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements: I2C
    7. 6.7 Timing Diagram
    8. 6.8 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Multiplexer
      2. 7.3.2 Analog Inputs
      3. 7.3.3 Full-Scale Range (FSR) and LSB Size
      4. 7.3.4 Voltage Reference
      5. 7.3.5 Oscillator
      6. 7.3.6 Output Data Rate and Conversion Time
      7. 7.3.7 Digital Comparator (ADS1014 and ADS1015 Only)
      8. 7.3.8 Conversion Ready Pin (ADS1014 and ADS1015 Only)
      9. 7.3.9 SMbus Alert Response
    4. 7.4 Device Functional Modes
      1. 7.4.1 Reset and Power-Up
      2. 7.4.2 Operating Modes
        1. 7.4.2.1 Single-Shot Mode
        2. 7.4.2.2 Continuous-Conversion Mode
      3. 7.4.3 Duty Cycling For Low Power
    5. 7.5 Programming
      1. 7.5.1 I2C Interface
        1. 7.5.1.1 I2C Address Selection
        2. 7.5.1.2 I2C General Call
        3. 7.5.1.3 I2C Speed Modes
      2. 7.5.2 Target Mode Operations
        1. 7.5.2.1 Receive Mode
        2. 7.5.2.2 Transmit Mode
      3. 7.5.3 Writing To and Reading From the Registers
      4. 7.5.4 Data Format
  9. 8 Register Map
  10. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Basic Connections
      2. 9.1.2 Single-Ended Inputs
      3. 9.1.3 Input Protection
      4. 9.1.4 Unused Inputs and Outputs
      5. 9.1.5 Analog Input Filtering
      6. 9.1.6 Connecting Multiple Devices
      7. 9.1.7 Quick-Start Guide
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Shunt Resistor Considerations
        2. 9.2.2.2 Operational Amplifier Considerations
        3. 9.2.2.3 ADC Input Common-Mode Considerations
        4. 9.2.2.4 Resistor (R1, R2, R3, R4) Considerations
        5. 9.2.2.5 Noise and Input Impedance Considerations
        6. 9.2.2.6 First-Order RC Filter Considerations
        7. 9.2.2.7 Circuit Implementation
        8. 9.2.2.8 Results Summary
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
      1. 9.3.1 Power-Supply Sequencing
      2. 9.3.2 Power-Supply Decoupling
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 接收文档更新通知
    3. 10.3 支持资源
    4. 10.4 Trademarks
    5. 10.5 静电放电警告
    6. 10.6 术语表
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information
  14. 重要声明
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Data Sheet

ADS101x具有内部基准、振荡器和可编程比较器
且兼容 I2C 的超小型、低功耗 3.3kSPS、12 位 ADC

本资源的原文使用英文撰写。 为方便起见,TI 提供了译文;由于翻译过程中可能使用了自动化工具,TI 不保证译文的准确性。 为确认准确性,请务必访问 ti.com 参考最新的英文版本(控制文档)。

下载最新的英语版本

1 特性

  • 超小型封装:
    • X2QFN:1.5mm × 2mm × 0.4mm
    • SOT:2.9mm × 2.8mm × 0.6mm
  • 无噪声分辨率:12 位
  • 宽电源电压范围:2.0V 至 5.5V
  • 低电流消耗:150μA
    (连续转换模式)
  • 可编程数据速率:
    128SPS 至 3.3kSPS
  • 单周期稳定
  • 内部低漂移电压基准
  • 内部振荡器
  • I2C 接口:四个引脚可选地址
  • 工作温度范围:
    -40°C 至 +125°C
  • 器件系列:
    • ADS1013:1 个单端 (SE) 或差分 (DE) 输入
    • ADS1014:1 个单端或差分输入,具有比较器和 PGA
    • ADS1015:4 个单端输入或 2 个差分输入,具有比较器和 PGA

2 应用

  • 便携式仪表
  • 电池电压和电流监测
  • 温度测量系统
  • 消费类电子产品
  • 工厂自动化和过程控制

3 说明

ADS1013、ADS1014 和 ADS1015 (ADS101x) 是采用、无引线 X2QFN-10、SOT-10 和 VSSOP-10 封装,兼容 I2C 的 12 位低功耗精密模数转换器 (ADC)。ADS101x 采用了低漂移电压基准和振荡器。ADS1014 和 ADS1015 还包含一个可编程增益放大器 (PGA) 和一个数字比较器。除了这些特性,这些器件还具有宽工作电源电压范围,因而非常适用于功率受限型和空间受限型传感器测量应用。

ADS101x 可在数据速率高达 33008 个样本/秒 (SPS) 的情况下执行转换。PGA 可提供从 ±256mV 到 ±6.144V 的输入范围,从而实现精准的大小信号测量。ADS1015 具有一个输入多路复用器 (MUX),可实现双路差分输入或四路单端输入测量。在 ADS1014 和 ADS1015 中使用数字比较器可进行欠压和过压检测。

封装信息
器件型号 封装(1) 封装尺寸(2)
ADS101x RUG(X2QFN,10) 1.5mm × 2mm
DYN(SOT,10) 2.9mm × 2.8mm
DGS(VSSOP,10) 3mm × 4.9mm
(1) 如需更多信息,请参阅机械、封装和可订购信息。
(2) 封装尺寸(长 × 宽)为标称值,并包括引脚(如适用)。
器件信息
器件型号 输入通道 特性(1)
ADS1013 1 个差分(1 个单端) —
ADS1014 1 个差分(1 个单端) PGA、比较器
ADS1015 2 个差分(4 个单端) PGA、比较器
(1) 有关详细信息,请参阅器件比较表。
ADS1013 ADS1014 ADS1015 简化的方框图简化的方框图

4 Device Comparison Table

DEVICE RESOLUTION
(Bits)
MAXIMUM SAMPLE RATE
(SPS)
INPUT CHANNELS
Differential
(Single-Ended)
PGA INTERFACE SPECIAL FEATURES
ADS1015 12 3300 2 (4) Yes I2C Comparator
ADS1014 12 3300 1 (1) Yes I2C Comparator
ADS1013 12 3300 1 (1) No I2C None
ADS1115 16 860 2 (4) Yes I2C Comparator
ADS1114 16 860 1 (1) Yes I2C Comparator
ADS1113 16 860 1(1) No I2C None
ADS1018 12 3300 2 (4) Yes SPI Temperature sensor
ADS1118 16 860 2 (4) Yes SPI Temperature sensor

5 Pin Configuration and Functions

ADS1013 ADS1014 ADS1015 RUG
                            Package,10-Pin(Top View)Figure 5-1 RUG Package,
10-Pin(Top View)
ADS1013 ADS1014 ADS1015 DYN and DGS Packages,10-Pin(Top View)Figure 5-2 DYN and DGS Packages,
10-Pin(Top View)
Table 5-1 Pin Functions: RUG, DYN, and DGS Packages
PIN TYPE DESCRIPTION(1)
NAME ADS1013 ADS1014 ADS1015
ADDR 1 1 1 Digital input I2C target address select
AIN0 4 4 4 Analog input Analog input 0
AIN1 5 5 5 Analog input Analog input 1
AIN2 — — 6 Analog input Analog input 2 (ADS1015 only)
AIN3 — — 7 Analog input Analog input 3 (ADS1015 only)
ALERT/RDY — 2 2 Digital output Comparator output or conversion ready (ADS1014 and ADS1015 only)
Open-drain output. Connect to VDD using a pullup resistor.
GND 3 3 3 Analog Ground
NC 2, 6, 7 6, 7 — — No connect. Leave pin floating or connect to GND.
SCL 10 10 10 Digital input Serial clock input. Connect to VDD using a pullup resistor.
SDA 9 9 9 Digital I/O Serial data input and output. Connect to VDD using a pullup resistor.
VDD 8 8 8 Analog Power supply. Connect a 0.1μF, power-supply decoupling capacitor to GND.
(1) See the Unused Inputs and Outputs section for unused pin connections.

 

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