AD8638ARZ-REEL7
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Analog Devices Inc. AD8638ARZ-REEL7

Manufacturer No:
AD8638ARZ-REEL7
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC
Delivery:
Payment:
iso14001
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Product Introduction

Overview

The AD8638ARZ-REEL7 is a precision operational amplifier manufactured by Analog Devices Inc. This component is part of the AD8638 series, known for its auto-zero topology, which combines low cost with high accuracy and low noise. The AD8638ARZ-REEL7 is particularly suited for applications requiring minimal error sources, such as position and pressure sensors, medical equipment, and strain gage amplifiers. It operates over an extended industrial temperature range of −40°C to +125°C and is available in an 8-lead SOIC package.

Key Specifications

Attribute Value
Manufacturer Analog Devices Inc.
Part Number AD8638ARZ-REEL7
Package 8-SOIC (0.154", 3.90mm Width)
Bandwidth 1.35 MHz
Offset Voltage Typical 3 μV
Offset Voltage Drift 0.01 μV/°C (except SOT-23)
Noise 1.2 μV p-p (0.1 Hz to 10 Hz)
Input Resistance 22.5 TΩ
Input Capacitance (Differential Mode) 4 pF
Input Capacitance (Common Mode) 1.7 pF
Output Voltage High 4.97 V (RL = 10 kΩ to VCM)
Supply Voltage ±2.5 V to ±8 V dual supply
Operating Temperature Range −40°C to +125°C

Key Features

  • Auto-Zero Topology: Combines low cost with high accuracy and low noise, eliminating the need for external capacitors.
  • Rail-to-Rail Output: Ensures the output voltage can swing from the negative to the positive supply rail.
  • Low Offset Voltage and Drift: Typical offset voltage of 3 μV and drift of 0.01 μV/°C, making it suitable for high-precision applications.
  • Low Noise: Voltage noise of 1.2 μV p-p (0.1 Hz to 10 Hz) and noise density of 60 nV/√Hz at 1 kHz.
  • High Input Resistance: 22.5 TΩ input resistance, minimizing the impact on the input signal.
  • Extended Industrial Temperature Range: Operates from −40°C to +125°C, making it suitable for a wide range of environments.

Applications

  • Position and Pressure Sensors: The low drift and high accuracy make it ideal for sensor applications.
  • Medical Equipment: Suitable for medical devices requiring high precision and low noise.
  • Strain Gage Amplifiers: Used in strain gage applications where minimal error sources are critical.
  • Industrial Automation: Can be used in various industrial automation applications requiring precise signal amplification.

Q & A

  1. What is the typical offset voltage of the AD8638ARZ-REEL7?

    The typical offset voltage is 3 μV.

  2. What is the operating temperature range of the AD8638ARZ-REEL7?

    The operating temperature range is −40°C to +125°C.

  3. What package type is the AD8638ARZ-REEL7 available in?

    The AD8638ARZ-REEL7 is available in an 8-lead SOIC package.

  4. What is the bandwidth of the AD8638ARZ-REEL7?

    The bandwidth is 1.35 MHz.

  5. Does the AD8638ARZ-REEL7 require external capacitors?

    No, the AD8638ARZ-REEL7 does not require external capacitors due to its auto-zero topology.

  6. What is the input resistance of the AD8638ARZ-REEL7?

    The input resistance is 22.5 TΩ.

  7. What are the typical noise specifications of the AD8638ARZ-REEL7?

    The voltage noise is 1.2 μV p-p (0.1 Hz to 10 Hz) and the noise density is 60 nV/√Hz at 1 kHz.

  8. What are some common applications for the AD8638ARZ-REEL7?

    Common applications include position and pressure sensors, medical equipment, and strain gage amplifiers.

  9. What is the supply voltage range for the AD8638ARZ-REEL7?

    The supply voltage range is ±2.5 V to ±8 V dual supply.

  10. Is the AD8638ARZ-REEL7 RoHS compliant?

    Yes, the AD8638ARZ-REEL7 is RoHS compliant.

Product Attributes

Amplifier Type:Zero-Drift
Number of Circuits:1
Output Type:Rail-to-Rail
Slew Rate:2V/µs
Gain Bandwidth Product:1.5 MHz
-3db Bandwidth:- 
Current - Input Bias:1 pA
Voltage - Input Offset:3 µV
Current - Supply:1.25mA
Current - Output / Channel:37 mA
Voltage - Supply Span (Min):5 V
Voltage - Supply Span (Max):16 V
Operating Temperature:-40°C ~ 125°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 AD8638ARZ-REEL7 AD8648ARZ-REEL7 AD8639ARZ-REEL7 AD8628ARZ-REEL7 AD8630ARZ-REEL7 AD8638ARJZ-REEL7 AD8638ARZ-REEL
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active Active Active Active Active
Amplifier Type Zero-Drift General Purpose Chopper (Zero-Drift) Zero-Drift Zero-Drift Zero-Drift Zero-Drift
Number of Circuits 1 4 2 1 4 1 1
Output Type Rail-to-Rail Rail-to-Rail Rail-to-Rail Rail-to-Rail Rail-to-Rail Rail-to-Rail Rail-to-Rail
Slew Rate 2V/µs 11V/µs 2V/µs 1V/µs 1V/µs 2V/µs 2V/µs
Gain Bandwidth Product 1.5 MHz 24 MHz 1.5 MHz 2.5 MHz 2.5 MHz 1.5 MHz 1.5 MHz
-3db Bandwidth - - - 2.5 MHz 2.5 MHz - -
Current - Input Bias 1 pA 0.3 pA 1 pA 30 pA 30 pA 1 pA 1 pA
Voltage - Input Offset 3 µV 600 µV 3 µV 1 µV 1 µV 3 µV 3 µV
Current - Supply 1.25mA 1.5mA (x4 Channels) 1.25mA (x2 Channels) 850µA - 1.25mA 1.25mA
Current - Output / Channel 37 mA 120 mA 37 mA 30 mA 30 mA 37 mA 37 mA
Voltage - Supply Span (Min) 5 V 2.7 V 5 V 2.7 V 2.7 V 5 V 5 V
Voltage - Supply Span (Max) 16 V 5.5 V 16 V 5 V 5 V 16 V 16 V
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 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) 14-SOIC (0.154", 3.90mm Width) SC-74A, SOT-753 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC 14-SOIC 8-SOIC 8-SOIC 14-SOIC SOT-23-5 8-SOIC

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