AD8421BRZ

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AD8421BRZ

IC INST AMP 1 CIRCUIT 8SOIC

  • Nhà sản xuất
  • Ông. Phần #AD8421BRZ
  • Gói SOIC-8
  • Bảng dữ liệu
  • Có sẵn3384

100% gốc & amp; Mới

24 giờ sẵn sàng để vận chuyển

Bảo hành 365 ngày

RFQ & amp; Nhận thêm Giảm giá

Thông số kỹ thuật

Package Tube
ProductStatus Active
AmplifierType Instrumentation
NumberofCircuits 1
SlewRate 35V/µs
-3dbBandwidth 10 MHz
Current-InputBias 100 pA
Voltage-InputOffset 25 µV
Current-Supply 2mA
Current-Output/Channel 65 mA
Voltage-SupplySpan(Min) 5 V
Voltage-SupplySpan(Max) 36 V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Tổng quan

Description

The AD8421BRZ is a precision instrumentation amplifier from Analog Devices, designed for low-power, high-performance applications. It features a low input offset voltage of 50 µV and a high common-mode rejection ratio (CMRR) of 130 dB, making it suitable for accurate signal amplification in noisy environments. With a wide supply voltage range of ±2.3 V to ±18 V, it can be used in various applications, including medical instrumentation, industrial sensors, and signal conditioning.
The AD8421's gain can be set from 1 to 1000 using external resistors, providing flexibility for different signal levels. It also boasts a low noise density of 8 nV/√Hz, enhancing its performance in low-level signal applications. The device is packaged in a compact 8-lead SOIC form factor, facilitating easy integration into space-constrained designs. Overall, the AD8421BRZ is ideal for applications requiring high accuracy and low power consumption.

Features

The AD8421BRZ is a precision instrumentation amplifier designed for low-power applications. Key features include:
1. High Precision: Low offset voltage (50 µV max), low offset drift (0.2 µV/°C), and low noise (10 nV/√Hz).
2. Wide Supply Range: Operates with a dual supply range from ±2.5 V to ±18 V or a single supply from 5 V to 36 V.
3. High Gain: Fixed gain of 100, with a high input impedance (over 10^9 ohms) for minimal loading effects.
4. Fast Response: Slew rate of 0.5 V/µs and a bandwidth of 1.2 MHz, allowing for quick signal processing.
5. Low Power Consumption: Consumes only 200 µA of supply current, making it suitable for battery-operated devices.
6. Common-Mode Rejection: Excellent CMRR (120 dB min), ensuring accurate signal amplification in noisy environments.
7. Package Options: Available in a 5-lead TSOT-23, facilitating compact designs.
These features make the AD8421BRZ suitable for medical instrumentation, sensors, and data acquisition systems.

Package

The AD8421BRZ is packaged in a 8-lead MSOP (Mini Small Outline Package) with a thermal pad for enhanced heat dissipation. This compact form factor is designed for precision instrumentation applications.

Pinout

The AD8421BRZ is a precision instrumentation amplifier with a total of 8 pins. Here are the pin functions:
1. V+ (Pin 1): Positive power supply input.
2. V- (Pin 2): Negative power supply input.
3. REF (Pin 3): Reference voltage input for output offset adjustment.
4. IN+ (Pin 4): Non-inverting input for the differential signal.
5. IN- (Pin 5): Inverting input for the differential signal.
6. RG (Pin 6): Gain resistor connection, used to set the gain of the amplifier.
7. OUT (Pin 7): Output signal pin.
8. NC (Pin 8): No connection; not used.
The amplifier operates from a dual supply voltage of ±2.5V to ±18V and is designed for high precision, low noise applications.

Manufacturer

The AD8421BRZ is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company headquartered in Norwood, Massachusetts, specializing in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company primarily serves sectors such as communications, automotive, industrial, and healthcare, providing solutions for data acquisition, signal processing, and control applications. The AD8421 is a low-power instrumentation amplifier designed for precision signal conditioning, often used in medical devices, industrial instrumentation, and sensor applications.

Application

The AD8421BRZ is a low-power, instrumentation amplifier suitable for various applications, including medical instrumentation (e.g., ECG, EEG), industrial process control, data acquisition systems, and sensor signal conditioning. Its high input impedance, low noise, and low offset voltage make it ideal for amplifying small differential signals in noisy environments, such as strain gauge and thermocouple applications. Additionally, it is used in automotive and consumer electronics for accurate measurements and signal processing.

Equivalent

Equivalent products to the AD8421BRZ include the INA121, INA128, and OPA1641, which are all instrumentation amplifiers with low noise and high precision characteristics. Additionally, consider the LT2057, AD620, and MCP6V01 for similar applications, depending on specific requirements like gain, bandwidth, and supply voltage. Always verify specifications for compatibility in your application.

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