Overview
The AD8226BRMZ-R7, produced by Analog Devices Inc., is a low-cost, wide supply range instrumentation amplifier. It is designed to offer high flexibility and reliability in various industrial and measurement applications. The amplifier requires only one external resistor to set any gain between 1 and 1000, making it highly versatile. It features a wide input range that includes the ability to go below the negative supply, allowing for the amplification of small signals near ground without the need for dual supplies. The AD8226BRMZ-R7 operates on a broad range of supply voltages, from 2.2 V to 36 V for single supply and ±1.35 V to ±18 V for dual supplies, and is fully specified for operation from −40°C to +125°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Gain Range | 1 | - | 1000 | V/V |
| Bandwidth (G = 1) | - | 1.5 | - | MHz |
| CMRR (G = 1) | 90 | - | - | dB |
| Input Noise | - | 22 | - | nV/√Hz |
| Supply Current | - | 350 | - | μA |
| Operating Temperature | -40 | - | 125 | °C |
| Supply Voltage (Single) | 2.2 | - | 36 | V |
| Supply Voltage (Dual) | ±1.35 | - | ±18 | V |
| Package Type | - | 8-Lead MSOP | - | - |
Key Features
- Gain set with a single external resistor, allowing for gains from 1 to 1000.
- Wide input range that includes the ability to go below the negative supply, enabling the amplification of small signals near ground without dual supplies.
- Robust inputs designed to handle voltages beyond the supply rails, ensuring protection against overvoltage conditions.
- Rail-to-rail output, allowing the signal to make full use of the supply rails.
- Low power consumption with a typical supply current of 350 μA.
- High common-mode rejection ratio (CMRR) of at least 90 dB for BR models.
Applications
The AD8226BRMZ-R7 is ideal for various industrial and measurement applications, particularly in multichannel, space-constrained environments. It is well-suited for use in tightly packed, zero airflow designs due to its MSOP package and high temperature rating. The amplifier is also suitable for connecting to real-world sensors, making it a reliable choice for industrial automation, medical devices, and other applications requiring precise signal amplification.
Q & A
- What is the gain range of the AD8226BRMZ-R7? The gain range of the AD8226BRMZ-R7 is from 1 to 1000, set by a single external resistor.
- What is the bandwidth of the AD8226BRMZ-R7 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 AD8226BRMZ-R7? The CMRR is at least 90 dB for BR models.
- What is the input noise of the AD8226BRMZ-R7? The input noise is 22 nV/√Hz.
- What is the typical supply current of the AD8226BRMZ-R7? The typical supply current is 350 μA.
- What are the operating temperature ranges for the AD8226BRMZ-R7? The operating temperature range is from −40°C to +125°C.
- What are the supply voltage ranges for the AD8226BRMZ-R7? The supply voltage ranges are from 2.2 V to 36 V for single supply and ±1.35 V to ±18 V for dual supplies.
- What package types are available for the AD8226BRMZ-R7? The AD8226BRMZ-R7 is available in 8-lead MSOP packages.
- Is the AD8226BRMZ-R7 suitable for high-temperature environments? Yes, it is fully specified for operation from −40°C to +125°C.
- Can the AD8226BRMZ-R7 handle overvoltage conditions? Yes, the inputs are designed to handle voltages beyond the supply rails, ensuring protection against overvoltage conditions.
