Overview
The AD8226BRMZ is a low-cost, wide supply range instrumentation amplifier produced by Analog Devices Inc. This device is designed for a variety of industrial and sensor-based applications, offering a high degree of flexibility and robustness. It requires only one external resistor to set any gain between 1 and 1000, making it highly versatile for different signal amplification needs.
The AD8226BRMZ operates on a wide power supply range, supporting single supplies from 2.2 V to 36 V and dual supplies from ±1.35 V to ±18 V. This wide supply range, combined with its ability to handle input voltages below the negative supply, makes it suitable for amplifying small signals near ground without the need for dual supplies.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Gain Range | 1 | - | 1000 | V/V |
| Bandwidth (G = 1) | 1.5 | 1.5 | - | MHz |
| CMRR (G = 1) | 86 | 90 | - | dB |
| Input Noise | - | 22 | - | nV/√Hz |
| Supply Current | - | 350 | - | μA |
| Operating Temperature | -40 | - | 125 | °C |
| Package Type | - | - | - | 8-Lead MSOP |
| Slew Rate | - | 0.6 | - | V/μs |
| Input Bias Current | - | 20 | - | nA |
| Input Offset Voltage | - | 50 | - | μV |
| Output Current per Channel | - | 13 | - | mA |
Key Features
- Gain Setting: Gain is set with just one external resistor, allowing for gains between 1 and 1000.
- Wide Supply Range: Supports single supplies from 2.2 V to 36 V and dual supplies from ±1.35 V to ±18 V.
- Input Voltage Range: Input voltage can go below the negative supply, enabling the amplification of small signals near ground without dual supplies.
- Input Protection: Inputs are protected beyond the supply rails, ensuring robust operation in real-world sensor applications.
- High CMRR: Common-mode rejection ratio (CMRR) of up to 120 dB, depending on the gain setting.
- Low Noise and Offset: Low input noise of 22 nV/√Hz and an input offset voltage of 50 μV.
- Compact Packaging: Available in 8-lead MSOP and SOIC packages, suitable for space-constrained designs.
- High Temperature Rating: Fully specified for operation from −40°C to +125°C.
Applications
The AD8226BRMZ is ideal for various industrial and sensor-based applications, including:
- Industrial Automation: Suitable for multichannel, space-constrained designs where robust and reliable signal amplification is required.
- Sensor Interfaces: Designed to connect to real-world sensors, handling voltages beyond the supply rails and providing high CMRR and low noise performance.
- Medical Devices: Can be used in medical equipment where precise signal amplification and high common-mode rejection are necessary.
- Aerospace and Defense: Its wide operating temperature range and robust input protection make it suitable for harsh environments.
Q & A
- What is the gain range of the AD8226BRMZ?
The gain range of the AD8226BRMZ is from 1 to 1000, set by a single external resistor.
- What are the supported power supply ranges for the AD8226BRMZ?
The AD8226BRMZ supports single supplies from 2.2 V to 36 V and dual supplies from ±1.35 V to ±18 V.
- Can the AD8226BRMZ handle input voltages below the negative supply?
- What is the common-mode rejection ratio (CMRR) of the AD8226BRMZ?
The CMRR of the AD8226BRMZ is up to 120 dB, depending on the gain setting.
- What is the input noise of the AD8226BRMZ?
The input noise of the AD8226BRMZ is 22 nV/√Hz.
- What are the package options for the AD8226BRMZ?
The AD8226BRMZ is available in 8-lead MSOP and SOIC packages.
- What is the operating temperature range of the AD8226BRMZ?
The AD8226BRMZ is fully specified for operation from −40°C to +125°C.
- What is the slew rate of the AD8226BRMZ?
The slew rate of the AD8226BRMZ is 0.6 V/μs.
- What is the typical supply current of the AD8226BRMZ?
The typical supply current of the AD8226BRMZ is 350 μA.
- What are some typical applications for the AD8226BRMZ?
The AD8226BRMZ is suitable for industrial automation, sensor interfaces, medical devices, and aerospace and defense applications.
