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AD628ARZ

Name: AD628ARZ
Rating: 4.7 (12 reviews)

IC CURRENT SENSE 1 CIRCUIT 8SOIC

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Mfr。パート #AD628ARZ
パッケージ SOP8
データシート
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仕様

Package	Bulk,Tube
ProductStatus	Active
AmplifierType	Current Sense
NumberofCircuits	1
SlewRate	0.3V/µs
-3dbBandwidth	600 kHz
Current-InputBias	1.5 nA
Voltage-InputOffset	150 µV
Current-Supply	1.6mA
Voltage-SupplySpan(Min)	4.5 V
Voltage-SupplySpan(Max)	36 V
OperatingTemperature	-40°C ~ 85°C
MountingType	Surface Mount
Package/Case	8-SOIC (0.154, 3.90mm Width)

概要

Description

The AD628ARZ is a precision instrumentation amplifier designed for low-level signal amplification, particularly in applications requiring high accuracy and low noise. It features a low input offset voltage and high common-mode rejection ratio (CMRR), making it suitable for medical devices, strain gauge applications, and industrial sensors.
Key characteristics include a wide supply voltage range, allowing operation from single or dual supplies, and a high input impedance that minimizes the load on the sensor. The AD628ARZ also offers a programmable gain feature, enabling adjustment of the amplification factor to accommodate various signal levels.
With a compact package design and robust performance specifications, this component is ideal for integrating into systems where precise signal conditioning is critical. The AD628ARZ is widely used in applications such as data acquisition systems, biomedical instrumentation, and other electronic devices that require meticulous signal processing.

Features

The AD628ARZ is a precision, low-power instrumentation amplifier designed for various applications, including medical instrumentation, industrial process control, and sensor signal conditioning. Key features include:
1. High Precision: Low offset voltage (typically 50 µV) and low offset drift (0.1 µV/°C).
2. Low Noise: Input voltage noise density of 6 nV/√Hz, ensuring high-quality signal amplification.
3. Wide Supply Range: Operates from ±2 V to ±18 V or single supply from 4 V to 36 V.
4. High Common-Mode Rejection Ratio (CMRR): Typically 120 dB, allowing for accurate differential signal amplification in noisy environments.
5. Gain Configuration: Programmable gain from 1 to 1000 with external resistors.
6. Low Power Consumption: Consumes only 1.5 mA of supply current, ideal for battery-operated devices.
7. Temperature Range: Suitable for operation over a temperature range of -40°C to +85°C.
These features make the AD628ARZ suitable for precision applications requiring high accuracy and low power.

Package

The AD628ARZ comes in a 32-lead LFCSP (Lead Frame Chip Scale Package) package type. This compact design is suitable for applications requiring high performance in a small footprint.

Pinout

The AD628ARZ is a precision instrumentation amplifier with a pin count of 8. Its primary functions include amplifying small differential signals while rejecting common-mode noise. The key pins are:
1. V- (Pin 1): Negative supply voltage.
2. V+ (Pin 2): Positive supply voltage.
3. R1 (Pin 3): Gain set resistor; connects to ground or to a resistor for gain adjustment.
4. R2 (Pin 4): Gain set resistor; similar function as R1.
5. IN+ (Pin 5): Non-inverting input for the input signal.
6. IN- (Pin 6): Inverting input for the input signal.
7. OUT (Pin 7): Output of the amplifier.
8. NC (Pin 8): No connection.
The AD628ARZ is commonly used in applications requiring accurate signal amplification, such as data acquisition systems, medical instrumentation, and industrial process control.

Manufacturer

The AD628ARZ is manufactured by Analog Devices, Inc. Analog Devices is a global company specializing in high-performance analog, mixed-signal, and digital signal processing integrated circuits (ICs). Established in 1965, the company is known for its innovative solutions in various applications, including communications, healthcare, automotive, and industrial automation. Analog Devices focuses on providing precision technology and is recognized for its expertise in data conversion, signal processing, and sensor interfacing, making it a key player in the semiconductor industry.

Application

The AD628ARZ is an instrumentation amplifier primarily used in applications such as medical instrumentation, sensor signal conditioning, industrial process control, and data acquisition systems. Its high common-mode rejection ratio (CMRR) and low noise make it suitable for precise measurements in environments with electrical interference. Additionally, it is utilized in strain gauge and thermocouple applications, as well as in portable medical devices for accurate biosignal monitoring.

Equivalent

The AD628ARZ chip is a precision instrumentation amplifier. Equivalent products include the INA128 and INA199 from Texas Instruments, and the LT2040 from Analog Devices. Other alternatives may include the AD623 and AD8541. Always verify specifications to ensure compatibility for your specific application.