Overview
The AD8226ARMZ-RL, produced by Analog Devices Inc., is a low-cost, wide supply range instrumentation amplifier. It is designed to be highly versatile, requiring only one external resistor to set any gain between 1 and 1000. This amplifier is suitable for a variety of signal voltages and operates on a wide range of power supplies, from 2.2 V to 36 V for single supply and ±1.35 V to ±18 V for dual supplies. The AD8226ARMZ-RL features a wide input range, including the ability to go below the negative supply, and rail-to-rail output, allowing the signal to make full use of the supply rails. It is particularly robust, with inputs designed to handle voltages beyond the supply rails, making it ideal for connecting to real-world sensors in industrial applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Gain Range | 1 | - | 1000 | V/V |
| Supply Voltage (Single) | 2.2 | - | 36 | V |
| Supply Voltage (Dual) | ±1.35 | - | ±18 | V |
| Bandwidth (G = 1) | 1.5 | - | - | MHz |
| CMRR (G = 1) | 86 | 90 | - | dB |
| Input Noise | - | 22 | - | nV/√Hz |
| Supply Current | - | 350 | - | μA |
| Operating Temperature | -40 | - | 125 | °C |
| Package | - | - | - | 8-Lead MSOP |
Key Features
- Gain Setting: Gain is set with a single external resistor, allowing for gains between 1 and 1000.
- Wide Supply Range: Operates on single supplies from 2.2 V to 36 V and dual supplies from ±1.35 V to ±18 V.
- Input Range: Inputs can go below the negative supply, allowing for the amplification of small signals near ground without requiring dual supplies.
- Robust Inputs: Designed to handle voltages beyond the supply rails, ensuring protection against overvoltage conditions.
- Low Noise and High CMRR: Features low input noise of 22 nV/√Hz and high common-mode rejection ratio (CMRR) of up to 90 dB.
- Compact Packaging: Available in 8-lead MSOP and SOIC packages, suitable for space-constrained applications.
- High Temperature Rating: Fully specified for operation from −40°C to +125°C.
Applications
The AD8226ARMZ-RL is ideal for multichannel, space-constrained industrial applications. It is particularly suited for use in:
- Industrial sensor interfaces
- Medical devices requiring precise signal amplification
- Aerospace and defense applications where robustness and reliability are critical
- Tightly packed, zero airflow designs due to its high temperature rating
Q & A
- What is the gain range of the AD8226ARMZ-RL?
The gain range of the AD8226ARMZ-RL is from 1 to 1000, set by a single external resistor.
- What are the supply voltage ranges for the AD8226ARMZ-RL?
The AD8226ARMZ-RL operates on single supplies from 2.2 V to 36 V and dual supplies from ±1.35 V to ±18 V.
- Can the AD8226ARMZ-RL handle input voltages beyond the supply rails?
- What is the typical supply current of the AD8226ARMZ-RL?
The typical supply current of the AD8226ARMZ-RL is 350 μA.
- What is the operating temperature range of the AD8226ARMZ-RL?
The AD8226ARMZ-RL is fully specified for operation from −40°C to +125°C.
- In what packages is the AD8226ARMZ-RL available?
The AD8226ARMZ-RL is available in 8-lead MSOP and SOIC packages.
- What is the bandwidth of the AD8226ARMZ-RL at a gain of 1?
The bandwidth of the AD8226ARMZ-RL at a gain of 1 is 1.5 MHz.
- What is the common-mode rejection ratio (CMRR) of the AD8226ARMZ-RL at a gain of 1?
The CMRR of the AD8226ARMZ-RL at a gain of 1 is a minimum of 90 dB.
- Is the AD8226ARMZ-RL suitable for use in multichannel applications?
- Can the AD8226ARMZ-RL be used in medical devices?
