INA118U

画像は参考用です

INA118U

+BOM

  • メーカーSTマイクロエレクトロニクス

  • メーカー品番 #INA118U

  • 在庫状況7047

365 日間品質保証

7*24 日間の品質保証

90-時間単位のサービス保証

1日間のアフターサービス保証

仕様

属性
Package Bulk,Tube
ProductStatus Active
AmplifierType Instrumentation
NumberofCircuits 1
SlewRate 0.9V/µs
-3dbBandwidth 800 kHz
Current-InputBias 1 nA
Voltage-InputOffset 25 µV
Current-Supply 350µA
Current-Output/Channel 12 mA
Voltage-SupplySpan(Min) 2.7 V
Voltage-SupplySpan(Max) 36 V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

概要

Description

The INA118U is a precision instrumentation amplifier integrated circuit (IC) commonly used in applications requiring accurate low-level signal amplification in the presence of noise, voltage differences, and other adverse conditions. It is designed by Texas Instruments and features low power consumption, high common-mode rejection ratio (CMRR), and low offset voltage.
Key features of the INA118U include a single external resistor for gain adjustment, allowing flexibility and precision in setting the desired amplification level. It operates over a wide range of supply voltages, typically from ±2.25V to ±18V, making it versatile for various applications. The IC is known for its ability to reject common-mode signals, preserving the integrity of the differential input signals.
This makes the INA118U ideal for use in sensor signal conditioning, data acquisition systems, medical instrumentation, and other precision measurement applications. Its small package size and high performance make it suitable for both space-constrained and high-reliability environments.

Equivalent

The INA118U is a precision instrumentation amplifier. Equivalent products include:
1. AD620 from Analog Devices
2. MAX4463 from Maxim Integrated
3. LT1167 from Analog Devices/Linear Technology
4. MCP6N11 from Microchip Technology
5. AMP03 from Analog Devices
These alternatives offer similar functionality, but check specific datasheets for detailed specifications and compatibility.

Features

The INA118U is a precision instrumentation amplifier designed for accurate, low-level signal amplification in various applications. Key features include:
1. Low Offset Voltage: The amplifier boasts a low offset voltage of approximately 50 µV, minimizing errors in signal amplification.
2. Low Offset Drift: With an offset drift of around 0.5 µV/°C, it maintains accuracy across a wide temperature range.
3. High Common-Mode Rejection Ratio (CMRR): Offers a high CMRR of up to 120 dB, which helps in reducing noise from common-mode signals.
4. Gain Adjustment: The device supports a gain range from 1 to 10,000, easily adjustable via a single external resistor.
5. Wide Supply Range: Operates over a wide supply voltage range from ±2.25 V to ±18 V, suitable for battery-powered and industrial applications.
6. Low Input Bias Current: Features low input bias current of 5 nA, beneficial for high-impedance sensor applications.
7. Package Type: Available in an SOIC-8 package, providing a compact solution for space-constrained designs.
8. Temperature Range: Functional over a temperature range from -40°C to +85°C, making it suitable for various environmental conditions.
These features make the INA118U an ideal choice for precision data acquisition and sensor signal conditioning.

Pinout

The INA118U is an instrumentation amplifier integrated circuit. It is typically housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin configuration and functions:
1. Pin 1 (Ref): Reference voltage input. This pin allows you to offset the output voltage to a specific reference level.
2. Pin 2 (V- or -Vs): Negative power supply. Connect to the lower end of the power supply range.
3. Pin 3 (Rg): Gain setting resistor connection. The resistor connected between Pin 3 and Pin 4 sets the gain of the amplifier.
4. Pin 4 (Rg): Gain setting resistor connection. Pairs with Pin 3 to determine gain.
5. Pin 5 (In- or -In): Inverting input. Connects to the signal source's negative side or ground.
6. Pin 6 (In+ or +In): Non-inverting input. Connects to the signal source's positive side.
7. Pin 7 (Vout): Output voltage. Provides the amplified signal output.
8. Pin 8 (V+ or +Vs): Positive power supply. Connect to the higher end of the power supply range.
The INA118U is used for precise low-level signal amplification, often in sensor interfacing applications.

Manufacturer

The INA118U is manufactured by Texas Instruments. Texas Instruments is a well-known American technology company that designs and manufactures semiconductors and various integrated circuits. These components are widely used in electronic systems and devices across numerous industries, including automotive, consumer electronics, and industrial equipment. Texas Instruments is recognized for its innovation in analog and digital signal processing, and it's one of the leading companies in the field of semiconductor manufacturing.

Application

The INA118U is a precision instrumentation amplifier commonly used in applications requiring accurate low-level signal amplification. Key application areas include:
1. Medical Devices: Utilized in ECG and EEG equipment for precise biopotential signal amplification.
2. Industrial Automation: Used in sensor signal conditioning for pressure, temperature, and strain gauges.
3. Weighing Systems: Supports load cell and weight sensor signal processing.
4. Data Acquisition: Enhances low-level signals for accurate digital conversion in data loggers.
5. Research Instruments: Amplifies small signals in scientific and laboratory equipment.
6. Communication Systems: Utilized in RF and audio signal processing for improved clarity.
Its low offset voltage, high input impedance, and excellent linearity make it ideal for precision signal applications.

Package

The INA118U is an instrumentation amplifier integrated circuit from Texas Instruments, and it comes in an SOIC-8 package, which is a small-outline integrated circuit with 8 pins.