Overview
The AD8226ARZ, produced by Analog Devices Inc., is a low-cost, wide supply range instrumentation amplifier. It is designed to work with a variety of signal voltages and requires only one external resistor to set any gain between 1 and 1000. The amplifier features a wide input range and rail-to-rail output, allowing the signal to make full use of the supply rails. It can operate on single supplies from 2.2 V to 36 V and dual supplies from ±1.35 V to ±18 V, making it versatile for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Range | 1 to 1000 | V/V |
| Supply Voltage (Single) | 2.2 V to 36 V | V |
| Supply Voltage (Dual) | ±1.35 V to ±18 V | V |
| Bandwidth (G = 1) | 1.5 MHz | Hz |
| CMRR (G = 1) | 90 dB minimum for BR models | dB |
| Input Noise | 22 nV/√Hz | nV/√Hz |
| Typical Supply Current | 350 μA | A |
| Operating Temperature | −40°C to +125°C | °C |
| Package Type | 8-lead SOIC and MSOP |
Key Features
- Gain set with one external resistor, allowing gain settings from 1 to 1000.
- Wide input range, including the ability to go below the negative supply, allowing small signals near ground to be amplified without requiring dual supplies.
- Rail-to-rail output, enabling the signal to make full use of the supply rails.
- Robust inputs designed to connect to real-world sensors, capable of handling voltages beyond the supply rails.
- Minimum and maximum input bias currents specified for open wire detection.
- Available in 8-lead MSOP and SOIC packages, fully specified for −40°C to +125°C operation.
Applications
The AD8226ARZ is ideal for multichannel, space-constrained industrial applications. It thrives in tightly packed, zero airflow designs due to its MSOP package and high temperature rating. The amplifier is suitable for various industrial sensor applications where a wide supply range and high gain flexibility are required.
Q & A
- What is the gain range of the AD8226ARZ?
The gain range of the AD8226ARZ is from 1 to 1000, set by a single external resistor.
- What are the supply voltage ranges for the AD8226ARZ?
The AD8226ARZ can operate on single supplies from 2.2 V to 36 V and dual supplies from ±1.35 V to ±18 V.
- What is the bandwidth of the AD8226ARZ at a gain of 1?
The bandwidth at a gain of 1 is 1.5 MHz.
- What is the common-mode rejection ratio (CMRR) of the AD8226ARZ?
The CMRR is 90 dB minimum for BR models at a gain of 1.
- How much input noise does the AD8226ARZ have?
The input noise is 22 nV/√Hz.
- What is the typical supply current of the AD8226ARZ?
The typical supply current is 350 μA.
- What is the operating temperature range of the AD8226ARZ?
The operating temperature range is from −40°C to +125°C.
- In what packages is the AD8226ARZ available?
The AD8226ARZ is available in 8-lead SOIC and MSOP packages.
- Can the AD8226ARZ handle voltages beyond the supply rails?
- Is the AD8226ARZ suitable for industrial applications?
