SNOSB14D August   2009  – December 2014 LPV521

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  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  1.8-V DC Electrical Characteristics
    6. 6.6  1.8-V AC Electrical Characteristics
    7. 6.7  3.3-V DC Electrical Characteristics
    8. 6.8  3.3-V AC Electrical Characteristics
    9. 6.9  5-V DC Electrical Characteristics
    10. 6.10 5-V AC Electrical Characteristics
    11. 6.11 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 Input Stage
      2. 7.4.2 Output Stage
  8. 8 Applications and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Driving Capacitive Load
      2. 8.1.2 EMI Suppression
    2. 8.2 Typical Applications
      1. 8.2.1 60-Hz Twin T-Notch Filter
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Portable Gas Detection Sensor
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
      3. 8.2.3 High-Side Battery Current Sensing
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
        3. 8.2.3.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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）
サーマルパッド・メカニカル・データ
発注情報

1 Features

  • For VS = 5 V, Typical Unless Otherwise Noted
    • Supply Current at VCM = 0.3 V 400 nA (Max)
    • Operating Voltage Range 1.6 V to 5.5 V
    • Low TCVOS 3.5 µV/°C (Max)
    • VOS 1 mV (Max)
    • Input Bias Current 40 fA
    • PSRR 109 dB
    • CMRR 102 dB
    • Open-Loop Gain 132 dB
    • Gain Bandwidth Product 6.2 kHz
    • Slew Rate 2.4 V/ms
    • Input Voltage Noise at f = 100 Hz 255 nV/√Hz
    • Temperature Range −40°C to 125°C

2 Applications

  • Wireless Remote Sensors
  • Powerline Monitoring
  • Power Meters
  • Battery Powered Industrial Sensors
  • Micropower Oxygen sensor and Gas Sensor
  • Active RFID Readers
  • Zigbee Based Sensors for HVAC Control
  • Sensor Network Powered by Energy Scavenging

3 Description

The LPV521 is a single nanopower 552-nW amplifier designed for ultra long life battery applications. The operating voltage range of 1.6 V to 5.5 V coupled with typically 351 nA of supply current make it well suited for RFID readers and remote sensor nanopower applications. The device has input common mode voltage 0.1 V over the rails, guaranteed TCVOS and voltage swing to the rail output performance. The LPV521 has a carefully designed CMOS input stage that outperforms competitors with typically 40 fA IBIAS currents. This low input current significantly reduces IBIAS and IOS errors introduced in megohm resistance, high impedance photodiode, and charge sense situations. The LPV521 is a member of the PowerWise™ family and has an exceptional power-to-performance ratio.

The wide input common mode voltage range, guaranteed 1 mV VOS and 3.5 µV/°C TCVOS enables accurate and stable measurement for both high-side and low-side current sensing.

EMI protection was designed into the device to reduce sensitivity to unwanted RF signals from cell phones or other RFID readers.

The LPV521 is offered in the 5-pin SC70 package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LPV521 SC70 (5) 2.00 mm x 1.25 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Nanopower Supply Current

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