Overview
The AD8226BRMZ-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 features a wide input range and rail-to-rail output, allowing the signal to utilize the full range of the supply rails. The AD8226BRMZ-RL can handle small signals near ground without the need for dual supplies and is robust enough to withstand input voltages beyond the supply rails.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage Range | Single Supply | 2.2 | 36 | V | |
| Dual Supplies | ±1.35 | ±18 | V | ||
| Gain Range | 1 | 1000 | V/V | ||
| Bandwidth (G = 1) | 1.5 | MHz | |||
| CMRR (G = 1) | VCM = −10 V to +10 V | 86 | 90 | dB | |
| Input Noise | 22 | nV/√Hz | |||
| Slew Rate (G = 1) | 0.4 | V/µs | |||
| Settling Time (0.01% for 10 V step, G = 1) | 25 | µs | |||
| Supply Current | 350 | µA | |||
| Operating Temperature Range | −40 | 125 | °C | ||
| Package Type | 8-Lead MSOP |
Key Features
- Gain Setting: Gain is set with just one 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, enabling the amplification of small signals near ground without dual supplies.
- Input Protection: Inputs are protected beyond the supply rails, withstanding voltages up to ±35 V with a ±5 V supply.
- High CMRR and Bandwidth: Offers high common-mode rejection ratio (CMRR) and bandwidth, with CMRR of up to 120 dB and bandwidth of 1.5 MHz at G = 1.
- Low Noise and High Slew Rate: Features low input noise of 22 nV/√Hz and a slew rate of 0.4 V/µs at G = 1.
- Compact Packaging: Available in 8-lead MSOP and SOIC packages, suitable for space-constrained applications.
Applications
The AD8226BRMZ-RL is ideal for multichannel, space-constrained industrial applications. It is particularly suited for environments where robustness and versatility are crucial, such as in the connection to real-world sensors. The amplifier's ability to handle a wide range of signal voltages and its compact packaging make it a preferred choice for tightly packed, zero airflow designs.
Q & A
- What is the gain range of the AD8226BRMZ-RL?
The gain range of the AD8226BRMZ-RL is from 1 to 1000, set by a single external resistor.
- What is the supply voltage range for the AD8226BRMZ-RL?
The AD8226BRMZ-RL operates on single supplies from 2.2 V to 36 V and dual supplies from ±1.35 V to ±18 V).
- Can the AD8226BRMZ-RL handle input voltages beyond the supply rails?
Yes, the AD8226BRMZ-RL can handle input voltages beyond the supply rails, for example, withstanding ±35 V with a ±5 V supply).
- What is the bandwidth of the AD8226BRMZ-RL at a gain of 1?
The bandwidth of the AD8226BRMZ-RL at a gain of 1 is 1.5 MHz).
- What is the typical supply current of the AD8226BRMZ-RL?
The typical supply current of the AD8226BRMZ-RL is 350 µA).
- What is the operating temperature range of the AD8226BRMZ-RL?
The operating temperature range of the AD8226BRMZ-RL is from −40°C to +125°C).
- In what packages is the AD8226BRMZ-RL available?
The AD8226BRMZ-RL is available in 8-lead MSOP and SOIC packages).
- What are some typical applications for the AD8226BRMZ-RL?
The AD8226BRMZ-RL is typically used in multichannel, space-constrained industrial applications and for connecting to real-world sensors).
- How does the AD8226BRMZ-RL handle small signals near ground?
The AD8226BRMZ-RL can amplify small signals near ground without requiring dual supplies due to its ability to handle input voltages below the negative supply rail).
- What is the CMRR of the AD8226BRMZ-RL at a gain of 1?
The CMRR of the AD8226BRMZ-RL at a gain of 1 is a minimum of 86 dB).
