AD620ARZ

Instrumentation Amplifier, 1 Func, 150uV Offset-Max, 1MHz Band Width, PDSO8

AD620ARZ – Instrumentation Amplifier, 1 Circuit, 1MHz Bandwidth – Analog Devices

The AD620ARZ from Analog Devices is a precision instrumentation amplifier engineered for accurate signal amplification in demanding measurement systems. Offering ultra-low input offset voltage and minimal power consumption, this IC delivers exceptional performance for sensitive applications requiring high common-mode rejection. PCX ensures genuine Analog Devices components with reliable stock and expedited shipping.

Key Features

Low Input Offset Voltage: 30 µV typical (150 µV max)
Wide Supply Range: ±2.3V to ±18V (4.6V to 36V total)
High Bandwidth: 1 MHz with -3dB cutoff
Ultra-Low Power: 900 µA supply current
Surface-Mount Package: 8-SOIC (3.90mm width)

Technical Details
This single-circuit instrumentation amplifier features a slew rate of 1.2V/µs and input bias current of 500 pA. Its monolithic design ensures excellent temperature stability across the industrial operating range (-40°C to +85°C). The device supports rail-to-rail output swing with 18mA output drive capability and maintains high CMRR (common-mode rejection ratio) across its wide supply voltage range.

Typical Applications

Medical instrumentation and ECG amplifiers
Industrial sensor signal conditioning
Bridge transducer amplifiers
Data acquisition systems
Portable test equipment

About Analog Devices
Analog Devices Inc. (ADI) is a global leader in high-performance semiconductor solutions, renowned for innovation in analog, mixed-signal, and power management technologies. With over 50 years of industry expertise, ADI sets benchmarks for precision and reliability in mission-critical applications.

ADI’s commitment to rigorous quality control and continuous improvement makes their components the preferred choice for aerospace, healthcare, and industrial automation systems worldwide. Their instrumentation amplifiers, including the AD620 series, are industry standards for accuracy and durability.

About Instrumentation Amplifiers
Instrumentation amplifiers (In-Amps) are specialized circuits designed to amplify small differential signals while rejecting common-mode noise. They are essential in environments with high electromagnetic interference or where signal integrity is paramount, such as biomedical sensors and industrial control systems.

Unlike standard op-amps, In-Amps provide fixed gain through internal precision resistors, high input impedance, and superior common-mode rejection. This makes them ideal for amplifying low-level signals from strain gauges, thermocouples, and RTDs without additional external components.

Packaging Options
Available in protective Tube packaging for automated assembly processes. Contact PCX for reel packaging alternatives or bulk quantities.

Frequently Asked Questions
Question: What distinguishes an instrumentation amplifier from a standard op-amp?
Answer: Instrumentation amplifiers feature differential inputs, higher common-mode rejection (CMRR), and programmable gain without external resistors – critical for noise-sensitive measurements.

Question: Can the AD620ARZ operate with a single +5V supply?
Answer: Yes, it supports single-supply operation from 4.6V to 36V, making it suitable for battery-powered devices.

Question: What is the gain accuracy of this amplifier?
Answer: The AD620ARZ maintains ±0.15% gain accuracy at G=100 with laser-trimmed internal resistors.

Question: Is this IC RoHS compliant?
Answer: Yes, all Analog Devices components shipped by PCX meet current RoHS 3 standards.

Question: How does temperature affect performance?
Answer: With a specified operating range of -40°C to +85°C, offset drift is typically