INA169NA/250

Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp
3,385 有效庫存

INA169NA/250

有效庫存3,385

Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp

  • 製造商零件號 # : INA169NA/250

  • 包裝/封裝: SOT23-5

  • 製造商: Texas Instruments

  • 產品分類 : Current Regulation/Management

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INA169NA/250 數據表
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詳細說明

The INA169NA/250 from Texas Instruments offers a precise solution for current monitoring across a wide range of applications. With its voltage output proportional to the measured current, interfacing with analog to digital converters or microcontrollers is seamless. The device's operating voltage range of 2.7V to 60V makes it versatile for various power supply designs. Featuring a fixed gain of 250V/V, it ensures accurate current readings with minimal error. Its low offset voltage and high common-mode rejection ratio guarantee precise measurements even in noisy environments, setting it apart from other current shunt monitors

主要特徵

  • The INA169NA/250 features high sensitivity and low noise
  • It provides accurate voltage drop measurements across a shunt resistor
  • The device operates over a wide temperature range from -40°C to 150°C

規格

以下是所選零件的基本參數，涉及零件的特性及其所屬類別。

Product type Analog output Common-mode voltage (max) (V) 60
Common-mode voltage (min) (V) 2.7 Input offset (±) (max) (µV) 1000
Input offset drift (±) (typ) (µV/°C) 1 Voltage gain (V/V) adjustable
CMRR (min) (dB) 100 Bandwidth (kHz) 220
Supply voltage (max) (V) 60 Supply voltage (min) (V) 2.7
Iq (max) (mA) 0.125 Number of channels 1
Comparators (#) 0 Gain error (%) 2
Gain error drift (±) (max) (ppm/°C) 100 Features Current Output
Rating Catalog Operating temperature range (°C) -40 to 125

數據表 PDF

數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。

初步規格 INA169NA/250 PDF 下載

常見問題解答

What is INA169NA/250?

The INA169NA/250 is a high-side current shunt monitor designed by Texas Instruments. It is specifically tailored for precision current sensing in applications like motor control, power management, and battery charging systems.

How Does INA169NA/250 Work?

The INA169NA/250 operates by sensing the voltage drop across a current shunt resistor to measure the current flowing through a circuit. It provides an accurate representation of the load current by amplifying the small voltage developed across the shunt resistor. This amplified voltage output is proportional to the load current being monitored.

How Many Pins does INA169NA/250 have and What are the Functions of the Pinout Configuration?

The INA169NA/250 is housed in a 5-pin SOT-23 package. The pinout configuration includes:

  • V+: Positive power supply pin.
  • V-: Negative power supply pin.
  • VS: Voltage sense input pin.
  • OUT: Voltage output pin.
  • GND: Ground pin.

What are the Pros and Cons of INA169NA/250?

Pros:

  • Precision Current Sensing: Provides accurate monitoring of load currents.
  • High-Side Sensing: Suitable for applications requiring high-side current monitoring.
  • Small Form Factor: The SOT-23 package is space-efficient and suitable for compact designs.
  • Wide Supply Voltage Range: Supports a broad range of supply voltages for versatility.
  • Low Power Consumption: Operates with low power, ideal for battery-powered applications.

Cons:

  • Temperature Drift: May exhibit drift with temperature variations, requiring compensation in some applications.
  • External Components: Additional filtering or amplification may be needed for specific system requirements.
  • Accuracy vs. Cost: Higher accuracy versions may come at a higher cost compared to lower precision current monitors.

Are There Any Equivalents/Alternatives to INA169NA/250 for Recommendation?

  • The INA240A1 from Texas Instruments is a comparable high-side current shunt monitor.
  • Alternatives to the INA169NA/250 include the MAX4080 from Maxim Integrated and the LT6108 from Analog Devices.

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