JAJSCL0B July   2016  – February 2018 INA240

PRODUCTION DATA.  

  1. 特長
  2. アプリケーション
  3. 概要
    1.     代表的なアプリケーション
    2.     強化されたPWM除去
  4. 改訂履歴
  5. Device Comparison Table
  6. Pin Configuration and Functions
    1.     Pin Functions
  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 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Amplifier Input Signal
        1. 8.3.1.1 Enhanced PWM Rejection Operation
        2. 8.3.1.2 Input Signal Bandwidth
      2. 8.3.2 Selecting the Sense Resistor (RSENSE)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Adjusting the Output Midpoint With the Reference Pins
      2. 8.4.2 Reference Pin Connections for Unidirectional Current Measurements
        1. 8.4.2.1 Ground Referenced Output
        2. 8.4.2.2 VS Referenced Output
      3. 8.4.3 Reference Pin Connections for Bidirectional Current Measurements
        1. 8.4.3.1 Output Set to External Reference Voltage
        2. 8.4.3.2 Output Set to Midsupply Voltage
        3. 8.4.3.3 Output Set to Mid-External Reference
        4. 8.4.3.4 Output Set Using Resistor Divider
      4. 8.4.4 Calculating Total Error
        1. 8.4.4.1 Error Sources
        2. 8.4.4.2 Reference Voltage Rejection Ratio Error
          1. 8.4.4.2.1 Total Error Example 1
          2. 8.4.4.2.2 Total Error Example 2
  9. Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Input Filtering
    2. 9.2 Typical Applications
      1. 9.2.1 Inline Motor Current-Sense Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Solenoid Drive Current-Sense Application
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curve
    3. 9.3 Do's and Don'ts
      1. 9.3.1 High-Precision Applications
      2. 9.3.2 Kelvin Connection from the Current-Sense Resistor
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply Decoupling
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Connection to the Current-Sense Resistor
    2. 11.2 Layout Example
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 ドキュメントのサポート
      1. 12.1.1 関連資料
    2. 12.2 関連リンク
    3. 12.3 ドキュメントの更新通知を受け取る方法
    4. 12.4 コミュニティ・リソース
    5. 12.5 商標
    6. 12.6 静電気放電に関する注意事項
    7. 12.7 Glossary
  13. 13メカニカル、パッケージ、および注文情報

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

Electrical Characteristics

at TA = 25 °C, VS = 5 V, VSENSE = VIN+ – VIN–, VCM = 12 V, and VREF1 = VREF2 = VS / 2 (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
INPUT
VCM Common-mode input range VIN+ = –4 V to 80 V, VSENSE = 0 mV
TA = – 40°C to 125°C
–4 80 V
CMRR Common-mode rejection ratio VIN+ = –4 V to 80 V, VSENSE = 0 mV
TA = –40°C to 125°C
120 132 dB
f = 50 kHz 93
VOS Offset voltage, input-referred VSENSE = 0 mV ±5 ±25 µV
dVOS/dT Offset voltage drift VSENSE = 0 mV, TA = –40°C to 125°C ±50 ±250 nV/°C
PSRR Power-supply rejection ratio VS = 2.7 V to 5.5 V, VSENSE = 0 mV
TA = –40°C to 125°C
±1 ±10 µV/V
IB Input bias current IB+, IB–, VSENSE = 0 mV 90 µA
Reference input range 0 VS V
OUTPUT
G Gain INA240A1 20 V/V
INA240A2 50
INA240A3 100
INA240A4 200
Gain error GND + 50 mV ≤ VOUT ≤ VS – 200 mV ±0.05% ±0.20%
TA = –40°C to 125°C ±0.5 ±2.5 ppm/°C
Non-linearity error GND + 10 mV ≤ VOUT ≤ VS – 200 mV ±0.01%
Reference divider accuracy VOUT = | (VREF1 – VREF2) | / 2 at VSENSE = 0 mV, TA = –40°C to 125°C 0.02% 0.1%
RVRR Reference voltage rejection ratio
(input-referred)
INA240A1 20 µV/V
INA240A3 5
INA240A2, INA240A4 2
Maximum capacitive load No sustained oscillation 1 nF
VOLTAGE OUTPUT(2)
Swing to VS power-supply rail RL = 10 kΩ to GND
TA = –40°C to 125°C
VS – 0.05 VS – 0.2 V
Swing to GND RL = 10 kΩ to GND, VSENSE = 0 mV
VREF1 = VREF2 = 0 V, TA = –40°C to 125°C
VGND + 1 VGND + 10 mV
FREQUENCY RESPONSE
BW Bandwidth All gains, –3-dB bandwidth 400 kHz
All gains, 2% THD+N(1) 100
Settling time - output settles to 0.5% of final value INA240A1 9.6 µs
INA240A4 9.8
SR Slew rate 2 V/µs
NOISE (INPUT REFERRED)
Voltage noise density 40 nV/√Hz
POWER SUPPLY
VS Operating voltage range TA = –40°C to 125°C 2.7 5.5 V
IQ Quiescent current VSENSE = 0 mV 1.8 2.4 mA
IQ vs temperature, TA = –40°C to 125°C 2.6
TEMPERATURE RANGE
Specified range –40 125 °C
See the Input Signal Bandwidth section for more details.
See Figure 13.