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AD8221ARM

Name: AD8221ARM
Rating: 4.7 (12 reviews)

IC INST AMP 1 CIRCUIT 8MSOP

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製造商。部分 #AD8221ARM
包 8-TSSOP
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規格

Package	Bulk,Tube
ProductStatus	Obsolete
AmplifierType	Instrumentation
NumberofCircuits	1
SlewRate	2V/µs
-3dbBandwidth	825 kHz
Current-InputBias	500 pA
Voltage-InputOffset	60 µV
Current-Supply	900µA
Current-Output/Channel	18 mA
Voltage-SupplySpan(Min)	4.6 V
Voltage-SupplySpan(Max)	36 V
OperatingTemperature	-40°C ~ 85°C
MountingType	Surface Mount
Package/Case	8-TSSOP, 8-MSOP (0.118, 3.00mm Width)

概述

Description

The AD8221ARM is a precision instrumentation amplifier designed for low-power applications, ideal for amplifying small differential signals in noisy environments. With a gain range of 1 to 100, it offers high accuracy, low offset voltage, and low noise, making it suitable for sensor signal conditioning, medical devices, and data acquisition systems.
Key features include a wide supply voltage range (±2.5V to ±18V), excellent common-mode rejection ratio (CMRR), and a low input bias current. The AD8221ARM is packaged in a compact, thermally efficient 8-lead MSOP, facilitating integration into space-constrained designs.
Its design focuses on minimizing temperature drift, enhancing performance in various operating conditions. The amplifier's simple gain setting, achieved via a single resistor, adds versatility for different applications. Overall, the AD8221ARM is an excellent choice for applications requiring precision and reliability in signal amplification.

Features

The AD8221ARM is a low-power instrumentation amplifier designed for precise signal conditioning in a variety of applications. Key features include:
1. High Gain: Fixed gain of 100, with options for adjustable gain using external resistors.
2. Low Noise: Low input voltage noise density (5 nV/√Hz), ensuring accurate signal measurement.
3. Wide Bandwidth: 1 MHz bandwidth, suitable for fast signal applications.
4. Rail-to-Rail Output: Allows utilization of the full supply voltage range for improved dynamic range.
5. Low Power Consumption: Operates at a supply current of just 1.5 mA, enabling battery-powered applications.
6. Input Common-Mode Range: Wide common-mode range allows it to work with diverse signal sources.
7. Thermal Stability: Excellent temperature performance, with low drift characteristics.
8. Single-Supply Operation: Can operate from a single supply voltage, simplifying design.
These features make the AD8221ARM ideal for applications in medical devices, industrial sensors, and data acquisition systems.

Package

The AD8221ARM is packaged in a 8-lead SOIC (Small Outline Integrated Circuit) package. This surface-mount package is designed for easy integration into electronic circuits.

Pinout

The AD8221ARM is a low power instrumentation amplifier with a total of 8 pins. The pin configuration and functions are as follows:
1. Pin 1 (R_G): Gain setting resistor input; connects a resistor to set the gain.
2. Pin 2 (V−): Negative power supply input; connects to the negative voltage rail.
3. Pin 3 (V+ or V_S): Positive power supply input; connects to the positive voltage rail.
4. Pin 4 (VOUT): Output voltage; the amplified output signal is available here.
5. Pin 5 (IN−): Inverting input; the negative input for differential signal measurement.
6. Pin 6 (IN+): Non-inverting input; the positive input for differential signal measurement.
7. Pin 7 (NC): No connection; not used in the application.
8. Pin 8 (REF): Reference voltage input; sets the output voltage reference level.
The AD8221ARM operates with a gain range of 1 to 1000, making it suitable for various applications requiring accurate signal amplification.

Manufacturer

The AD8221ARM is manufactured by Analog Devices, Inc. (ADI), a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits. Founded in 1965, Analog Devices specializes in high-performance components that are used in a variety of applications, including signal processing, data conversion, power management, and sensing. The company serves multiple markets, such as industrial automation, automotive, communications, healthcare, and consumer electronics. ADI is known for its innovation in precision signal processing and has a strong focus on developing advanced technologies that enhance performance, reliability, and efficiency in electronic systems.

Application

The AD8221ARM is a precision instrumentation amplifier ideal for applications in medical devices, such as ECG and EEG monitoring, as well as industrial process control, sensor signal conditioning, and data acquisition systems. Its low noise, high common-mode rejection ratio, and adjustable gain make it suitable for amplifying low-level signals in environments with high electrical noise.

Equivalent

Equivalent products to the AD8221ARM instrumentation amplifier include the INA181 from Texas Instruments, the LT2057 from Analog Devices, and the MCP6V01 from Microchip. These alternatives offer similar performance characteristics, such as low noise and high accuracy, but it's essential to review specific datasheets for exact specifications and suitability for your application.