PGA205AU

有效庫存6,802

Instrumentation Amplifiers Programmable Gain Instrumentation Amp

  • 製造商零件號 # : PGA205AU

  • 包裝/封裝: SOIC-16

  • 製造商: Texas Instruments

  • 產品分類 : Instrumentation, OP Amps, Buffer Amps

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PGA205AU 數據表

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詳細說明

The PGA205AU is a precision programmable gain amplifier designed for high-precision amplification applications. It offers a wide gain range from -1 to +128, which can be easily configured through digital inputs. The device provides a high common-mode rejection ratio (CMRR) of 100dB, ensuring excellent performance in noisy environments.With a supply voltage range of ±4.5V to ±18V, the PGA205AU is suitable for a variety of industrial and instrumentation applications. It features low offset voltage, low noise, and high bandwidth, making it ideal for high-accuracy signal conditioning.The PGA205AU is housed in a small MSOP-8 package, allowing for compact and space-efficient designs. It also incorporates thermal shutdown and overvoltage protection features, ensuring safe and reliable operation.

主要特徵

  • DIGITAL FILTER DESIGN
  • ANALOG TO DIGITAL CONVERSION
  • FILTER RESPONSE ANALYSIS

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。

PGA/VGA PGA Number of channels 1
BW at Acl (MHz) 1 Vs (max) (V) 36
Vs (min) (V) 9 Acl, min spec gain (V/V) 1
Gain (max) (dB) 18 Gain error (typ) (%) 0.05
Slew rate (typ) (V/µs) 0.3 Operating temperature range (°C) -40 to 85
Rating Catalog

常見問題解答

What is PGA205AU?

The PGA205AU is a precision, low-noise programmable gain instrumentation amplifier designed by Texas Instruments. It is ideal for applications requiring precise amplification of low-level signals, such as sensor interfaces, data acquisition systems, and medical instrumentation.

How Does PGA205AU Work?

The PGA205AU works by amplifying low-level input signals with high accuracy and low noise. It features a digitally programmable gain, allowing for flexible signal conditioning in various measurement and instrumentation applications. The amplifier provides a high common-mode rejection ratio (CMRR) and low offset voltage, ensuring accurate amplification of differential input signals.

How Many Pins does PGA205AU have and What are the Functions of the Pinout Configuration?

The PGA205AU is housed in a 16-pin TSSOP (Thin Shrink Small Outline Package) package. The pinout configuration includes:

  • IN–, IN+: Differential input pins for the input signal.
  • REF–, REF+: Reference voltage pins for the input signal.
  • RG–, RG+: Gain resistor pins for setting the gain of the amplifier.
  • V–, V+: Power supply pins.
  • OUT: Amplified output pin.
  • AD0, AD1, AD2: Address input pins for setting the gain.
  • PD: Power-down input pin.
  • ST/SD, SCLK: Serial interface control pins.

What are the Pros and Cons of PGA205AU?

Pros:

  • Precision Amplification: Provides precise amplification of low-level input signals.
  • Programmable Gain: Offers digitally programmable gain settings for flexible signal conditioning.
  • Low Noise: Achieves low noise performance, suitable for high-accuracy measurements.
  • High CMRR: Ensures high common-mode rejection ratio for accurate differential signal amplification.
  • Flexible Interface: Supports a serial interface for easy integration into digital systems.

Cons:

  • Cost: Precision amplifiers like the PGA205AU may have a higher cost compared to general-purpose amplifiers.
  • Complexity: Requires careful consideration of gain settings and noise performance for optimal usage.
  • External Components: May require additional external components for specific applications or gain settings.

Are There Any Equivalents/Alternatives to PGA205AU for Recommendation?

  • The AD8251 from Analog Devices is a precision instrumentation amplifier with similar features.
  • Alternatives to the PGA205AU include the LTC6915 from Linear Technology and the MAX4208 from Maxim Integrated.

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