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  • INA165x-Q1 SoundPlus™ 高共模抑制线路接收器

    • ZHCSGP4C August   2017  – May 2019 INA1650-Q1 , INA1651-Q1

      PRODUCTION DATA.  

  • CONTENTS
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  • INA165x-Q1 SoundPlus™ 高共模抑制线路接收器
  1. 1 特性
  2. 2 应用
    1.     简化内部原理图
  3. 3 说明
    1.     CMRR 直方图（5746 通道）
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions: INA1650-Q1
    2.     Pin Functions: INA1651-Q1
  6. 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 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Audio Signal Path
      2. 7.3.2 Supply Divider
      3. 7.3.3 EMI Rejection
      4. 7.3.4 Electrical Overstress
      5. 7.3.5 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Single-Supply Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input Common-Mode Range
      2. 8.1.2 Common-Mode Input Impedance
      3. 8.1.3 Start-Up Time in Single-Supply Applications
      4. 8.1.4 Input AC Coupling
      5. 8.1.5 Supply Divider Capacitive Loading
    2. 8.2 Typical Applications
      1. 8.2.1 Line Receiver for Differential Audio Signals in a Split-Supply System
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Two-Channel Microphone Input for Automotive Infotainment Systems
      3. 8.2.3 TRS Audio Interface in Single-Supply Applications
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 开发支持
        1. 11.1.1.1 TINA-TI（免费软件下载）
        2. 11.1.1.2 TI 高精度设计
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 接收文档更新通知
    4. 11.4 社区资源
    5. 11.5 商标
    6. 11.6 静电放电警告
    7. 11.7 Glossary
  12. 12机械、封装和可订购信息
  13. 重要声明
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DATA SHEET

INA165x-Q1 SoundPlus™ 高共模抑制线路接收器

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）。

1 特性

  • 符合面向汽车应用的 AEC-Q100 标准
    • 温度等级 1：–40°C 至 +125°C，TA
  • 高共模抑制：91dB（典型值）
  • 高输入阻抗：1MΩ 差分
  • 超低噪声：-104.7dBu，未加权
  • 超低总谐波失真 + 噪声：
    -119dB THD+N（20dBu，22kHz 带宽）
  • 短路保护
  • 集成电磁干扰 (EMI) 滤波器
  • 宽电源电压范围：±2.25V 至 ±12V
  • 采用小型 14 引脚 TSSOP 封装

2 应用

  • 车厢麦克风前置放大器
  • 信息娱乐系统
  • 音频输入电路
  • 线路驱动器
  • 外部音频功率放大器

简化内部原理图

INA1650-Q1 INA1651-Q1 ina1650_1-Q1-simplified-internal-schematic.gif

3 说明

INA1650-Q1 双通道和 INA1651-Q1 单通道 (INA165x-Q1) SoundPlus™音频线路接收器可实现 91dB 的极高共模抑制比 (CMRR)，与此同时，对于 20dBu 信号电平，可在 1kHz 时保持 -119dB 的超低 THD+N。不同于其他线路接收器产品，INA165x-Q1 CMRR 在额定温度范围内能保持特性不变，经生产测试，可在各种应用中提供稳定的 性能。

INA165x-Q1 器件支持 ±2.25V 至 ±12V 的极宽电源电压范围。除线路接收器通道以外，INA165x-Q1 还包含一个缓冲 1/2 Vs 基准输出，因此可配置为用于双电源或单电源 应用。1/2 Vs 输出可用作信号链中的另一个模拟电路的偏置电压。

INA1650-Q1 具有 独特的内部布局，即使在过驱或过载条件下也可在通道间实现最低串扰和零交互。

器件信息(1)

器件型号 封装 封装尺寸（标称值）
INA1650-Q1 TSSOP (14) 5.00mm × 4.40mm
INA1651-Q1
  1. 如需了解所有可用封装，请参阅数据表末尾的封装选项附录。

CMRR 直方图（5746 通道）

INA1650-Q1 INA1651-Q1 C108_SBOS818.png

4 修订历史记录

Changes from B Revision (April 2019) to C Revision

  • Changed ESD Ratings table to show individual device ratings Go

Changes from A Revision (October 2017) to B Revision

  • Added 向数据表中添加了 INA1651-Q1 器件和相关内容Go

Changes from * Revision (August 2017) to A Revision

  • INA1650-Q1 的建议电源电压范围从 36V 降到了 24V。文本、图表和电路图中提及的所有 36V 工作电压都已删除或修改，以反映 24V 的最大电源电压。Go

5 Pin Configuration and Functions

INA1650-Q1 PW Package
14-Pin TSSOP
Top View

Pin Functions: INA1650-Q1

PIN I/O DESCRIPTION
NAME NO.
COM A 3 I Input common, channel A
COM B 6 I Input common, channel B
IN+ A 2 I Noninverting input, channel A
IN– A 4 I Inverting input, channel A
IN+ B 7 I Noninverting input, channel B
IN– B 5 I Inverting input, channel B
OUT A 13 O Output, channel A
OUT B 8 O Output, channel B
REF A 12 I Reference input, channel A. This pin must be driven from a low impedance.
REF B 9 I Reference input, channel B. This pin must be driven from a low impedance.
VCC 1 — Positive (highest) power supply
VEE 14 — Negative (lowest) power supply
VMID(IN) 11 I Input node of internal supply divider. Connect a capacitor to this pin to reduce noise from the supply divider circuit.
VMID(OUT) 10 O Buffered output of internal supply divider.
INA1651-Q1 PW Package
14-Pin TSSOP
Top View

Pin Functions: INA1651-Q1

PIN I/O DESCRIPTION
NAME NO.
COM A 3 I Input common, channel A
IN+ A 2 I Noninverting input, channel A
IN– A 4 I Inverting input, channel A
NC 5 — No internal connection
NC 6 — No internal connection
NC 7 — No internal connection
NC 8 — No internal connection
NC 9 — No internal connection
OUT A 13 O Output, channel A
REF A 12 I Reference input, channel A. This pin must be driven from a low impedance.
VCC 1 — Positive (highest) power supply
VEE 14 — Negative (lowest) power supply
VMID(IN) 11 I Input node of internal supply divider. Connect a capacitor to this pin to reduce noise from the supply divider circuit.
VMID(OUT) 10 O Buffered output of internal supply divider.

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
Voltage Supply voltage, VS = (V+) – (V–) 40 V
Input voltage (signal inputs, enable, ground) (V–) – 0.5 (V+) + 0.5
Input differential voltage (V+) – (V–)
Current Input current (all pins except power-supply pins) ±10 mA
Output short-circuit(2) Continuous
Temperature Operating, TA –55 125 °C
Junction, TJ 150
Storage, Tstg –65 150
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) Short-circuit to VS / 2 (ground in symmetrical dual supply setups), one amplifier per package.

 
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