INA143UA/2K5
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Texas Instruments INA143UA/2K5

Manufacturer No:
INA143UA/2K5
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC OPAMP DIFF 1 CIRCUIT 8SOIC
Delivery:
Payment:
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Product Introduction

Overview

The INA143UA/2K5, produced by Texas Instruments, is a high-speed, precision difference amplifier. This component is part of the INA143 series, which includes both single (INA143) and dual (INA2143) versions. The INA143UA/2K5 is specifically packaged in an SO-8 surface mount configuration and is available in tape and reel format, containing 2500 devices per reel.

The device features a precision op-amp with a precision resistor network, offering gains of 10V/V or 0.1V/V. The on-chip resistors are laser trimmed to ensure accurate gain and high common-mode rejection. It operates over a wide supply range, from ±2.25V to ±18V for dual supplies and +4.5V to +36V for single supply, and supports an extended industrial temperature range of –40°C to +85°C.

Key Specifications

Parameter Min Typ Max Units
Supply Voltage Range (Dual) ±2.25 ±18 V
Supply Voltage Range (Single) +4.5 +36 V
Quiescent Current (per amplifier) ±0.92 ±1.2 mA
Temperature Range (Specification) –40 +85 °C
Temperature Range (Operation) –55 +125 °C
Slew Rate 5 V/µs
Settling Time (0.1% VO = 10V Step, CL = 100pF) 6 µs
Common-Mode Rejection Ratio 86 96 dB
Gain Error (VO = –4V to +3.5V) ±0.01 ±0.05 ±0.1 %

Key Features

  • High slew rate of 5 V/µs and fast settling time of 6 µs for 0.1% of a 10V step.
  • Precision resistor network with laser-trimmed resistors for accurate gain and high common-mode rejection.
  • Wide supply range: ±2.25V to ±18V for dual supplies and +4.5V to +36V for single supply.
  • Extended industrial temperature range of –40°C to +85°C and operation range of –55°C to +125°C.
  • Low quiescent current of ±0.92 mA to ±1.2 mA per amplifier.
  • High common-mode rejection ratio of 86 dB to 96 dB.
  • Low gain error and nonlinearity, making it suitable for precise signal amplification.

Applications

The INA143UA/2K5 is suitable for a wide range of general-purpose applications, including:

  • Differential signal amplification in industrial and automotive systems.
  • Current and voltage sensing in various industrial and medical devices.
  • Battery-powered systems requiring low power consumption and high precision.
  • Low-cost automotive systems where precision and reliability are crucial.
  • Any application requiring high-speed, high-precision difference amplification.

The device is particularly useful in configurations where the input and feedback resistors can be reversed to achieve different gain settings (e.g., G = 10 or G = 0.1).

Q & A

  1. What is the gain of the INA143UA/2K5?

    The INA143UA/2K5 offers gains of 10V/V or 0.1V/V.

  2. What is the operating temperature range of the INA143UA/2K5?

    The device operates over an extended industrial temperature range of –40°C to +85°C and can function from –55°C to +125°C.

  3. What is the supply voltage range for the INA143UA/2K5?

    The device can operate from ±2.25V to ±18V for dual supplies and from +4.5V to +36V for single supply.

  4. What is the slew rate of the INA143UA/2K5?

    The slew rate is 5 V/µs.

  5. How is the common-mode rejection ratio of the INA143UA/2K5?

    The common-mode rejection ratio is between 86 dB and 96 dB.

  6. What is the quiescent current of the INA143UA/2K5?

    The quiescent current is ±0.92 mA to ±1.2 mA per amplifier.

  7. What package type and configuration does the INA143UA/2K5 come in?

    The device is packaged in an SO-8 surface mount configuration and is available in tape and reel format.

  8. How does the INA143UA/2K5 handle source impedance mismatches?

    For good common-mode rejection, the source impedances connected to the inputs must be nearly equal. An additional resistor in series with the opposite input can be used to preserve good common-mode rejection if there is a known impedance mismatch.

  9. What are some typical applications of the INA143UA/2K5?

    Typical applications include differential signal amplification, current and voltage sensing, battery-powered systems, and low-cost automotive systems.

  10. How can the gain of the INA143UA/2K5 be adjusted?

    The gain can be adjusted by reversing the input and feedback resistors to achieve different gain settings (e.g., G = 10 or G = 0.1).

Product Attributes

Amplifier Type:Differential
Number of Circuits:1
Output Type:- 
Slew Rate:5V/µs
Gain Bandwidth Product:- 
-3db Bandwidth:150 kHz
Current - Input Bias:- 
Voltage - Input Offset:100 µV
Current - Supply:950µA
Current - Output / Channel:32 mA
Voltage - Supply Span (Min):4.5 V
Voltage - Supply Span (Max):36 V
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SOIC
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Similar Products

Part Number INA143UA/2K5 INA148UA/2K5 INA163UA/2K5 INA145UA/2K5 INA146UA/2K5 INA133UA/2K5 INA141UA/2K5 INA143U/2K5
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active Active Active Active
Amplifier Type Differential Differential Instrumentation Differential Differential Differential Instrumentation Differential
Number of Circuits 1 1 1 1 1 1 1 1
Output Type - - - - - - - -
Slew Rate 5V/µs 1V/µs 15V/µs 0.45V/µs 0.45V/µs 5V/µs 4V/µs 5V/µs
Gain Bandwidth Product - - - - - - - -
-3db Bandwidth 150 kHz 100 kHz 800 kHz 500 kHz 550 kHz 1.5 MHz 1 MHz 150 kHz
Current - Input Bias - - 2 µA 50 nA 50 nA - 2 nA -
Voltage - Input Offset 100 µV 1 mV 50 µV 200 µV 1 mV 150 µV 20 µV 100 µV
Current - Supply 950µA 260µA 10mA 570µA 570µA 950µA 750µA 950µA
Current - Output / Channel 32 mA 13 mA 60 mA 15 mA 15 mA 32 mA 15 mA 32 mA
Voltage - Supply Span (Min) 4.5 V 2.7 V 9 V 4.5 V 4.5 V 4.5 V 4.5 V 4.5 V
Voltage - Supply Span (Max) 36 V 36 V 36 V 36 V 36 V 36 V 36 V 36 V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC 8-SOIC 14-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC

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