Overview
The AD8226BRZ-RL, produced by Analog Devices Inc., is a low-cost, wide supply range instrumentation amplifier. It is designed to offer high performance and flexibility in various industrial and measurement applications. The AD8226 requires only one external resistor to set any gain between 1 and 1000, making it highly versatile. It operates on a wide range of power supplies, from single supply voltages of 2.2 V to 36 V and dual supplies of ±1.35 V to ±18 V. This amplifier is particularly useful in multichannel, space-constrained environments due to its compact 8-lead SOIC and MSOP packages and its ability to handle high temperatures up to 125°C.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Gain Range | 1 | 1000 | V/V | ||
| Common-Mode Rejection Ratio (CMRR) | VCM = −10 V to +10 V, G = 1 | 86 | 90 | dB | |
| Bandwidth (−3 dB) | G = 1 | 1.5 | MHz | ||
| Input Noise | 22 | nV/√Hz | |||
| Supply Current | 350 | μA | |||
| Operating Temperature | −40 | 125 | °C | ||
| Package Type | 8-Lead SOIC, 8-Lead MSOP |
Key Features
- Programmable Gain: The gain can be set from 1 to 1000 using a single external resistor.
- Wide Supply Range: Operates on single supply voltages from 2.2 V to 36 V and dual supplies from ±1.35 V to ±18 V.
- High CMRR: Minimum CMRR of 90 dB at G = 1, ensuring high rejection of common-mode signals.
- Input Protection: Inputs are protected beyond the supply rails, allowing for robust connection to real-world sensors.
- Compact Packages: Available in 8-lead SOIC and MSOP packages, suitable for space-constrained applications.
- High Temperature Operation: Fully specified for operation from −40°C to +125°C.
Applications
- Precision Data Acquisition: Ideal for applications requiring high accuracy and low noise.
- Industrial Automation: Suitable for multichannel, space-constrained industrial environments.
- Biomedical Analysis: Used in medical devices where high CMRR and low noise are critical.
- Aerospace Instrumentation: Applicable in aerospace applications due to its high performance and reliability.
- Bridge Signal Conditioning: Excellent choice for conditioning signals from bridge transducers.
Q & A
- What is the gain range of the AD8226BRZ-RL?
The gain range of the AD8226BRZ-RL is from 1 to 1000, settable using a single external resistor.
- What are the operating supply voltage ranges for the AD8226BRZ-RL?
The AD8226BRZ-RL operates on single supply voltages from 2.2 V to 36 V and dual supplies from ±1.35 V to ±18 V.
- What is the typical supply current of the AD8226BRZ-RL?
The typical supply current of the AD8226BRZ-RL is 350 μA.
- What is the common-mode rejection ratio (CMRR) of the AD8226BRZ-RL at a gain of 1?
The CMRR of the AD8226BRZ-RL at a gain of 1 is a minimum of 90 dB.
- What are the package types available for the AD8226BRZ-RL?
The AD8226BRZ-RL is available in 8-lead SOIC and 8-lead MSOP packages.
- What is the operating temperature range of the AD8226BRZ-RL?
The AD8226BRZ-RL is fully specified for operation from −40°C to +125°C.
- How is the gain of the AD8226BRZ-RL set?
The gain of the AD8226BRZ-RL is set using a single external resistor.
- What is the input noise of the AD8226BRZ-RL?
The input noise of the AD8226BRZ-RL is typically 22 nV/√Hz.
- Does the AD8226BRZ-RL have input protection beyond the supply rails?
Yes, the AD8226BRZ-RL has inputs protected beyond the supply rails, allowing it to handle voltages beyond the rails without damage.
- What are some typical applications of the AD8226BRZ-RL?
The AD8226BRZ-RL is typically used in precision data acquisition, industrial automation, biomedical analysis, aerospace instrumentation, and bridge signal conditioning.
