Overview
The AD8227BRMZ-R7 is a versatile and low-cost instrumentation amplifier produced by Analog Devices Inc. It is designed for precision signal conditioning and is particularly suited for industrial and medical applications. This amplifier operates over a wide range of supply voltages, from 2.2 V to 36 V single supply or ±1.5 V to ±18 V dual supply, making it highly adaptable to various system requirements. The AD8227BRMZ-R7 features a rail-to-rail output and requires only one external resistor to set any gain between 5 and 1000, enhancing its flexibility in different applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Amplifier Type | Instrumentation Amplifier |
| Package / Case | 8-MSOP, 8-TSSOP |
| Output Type | Rail-to-Rail |
| Slew Rate | 0.8 V/µs |
| -3db Bandwidth | 250 kHz |
| Current - Input Bias | 20 nA |
| Voltage - Input Offset | 100 µV |
| Current - Supply | 350 µA |
| Current - Output / Channel | 13 mA |
| Voltage - Supply Span (Min) | 2.2 V |
| Voltage - Supply Span (Max) | 36 V |
| Operating Temperature | -40°C to +125°C |
| Mounting Type | Surface Mount |
| CMRR - Common Mode Rejection Ratio | 105 dB |
Key Features
- Wide Supply Range: Operates on supplies ranging from ±1.5 V to ±18 V (2.2 V to 36 V single supply).
- Rail-to-Rail Output: Allows the signal to make full use of the supply rails.
- Single External Resistor for Gain Setting: Gain can be set between 5 and 1000 using just one external resistor.
- Robust Input Stage: Designed to connect to real-world sensors and can handle voltages beyond the supply rails.
- Low Input Bias Current and Offset Voltage: 20 nA input bias current and 100 µV input offset voltage.
- High CMRR: Common Mode Rejection Ratio of 105 dB.
- Reference Terminal for Output Offset: Allows the output signal to be offset to a precise mid-supply level.
Applications
- Industrial Applications: Suitable for precision signal conditioning in industrial environments.
- Medical Applications: Ideal for medical devices requiring precise signal amplification.
- Multichannel and Space-Constrained Applications: Compact package (8-MSOP, 8-TSSOP) makes it suitable for multichannel and space-constrained designs.
- Sensor Interfaces: Robust input stage makes it suitable for connecting to various sensors.
Q & A
- What is the operating supply voltage range of the AD8227BRMZ-R7?
The AD8227BRMZ-R7 operates on supplies ranging from 2.2 V to 36 V single supply or ±1.5 V to ±18 V dual supply.
- How is the gain set for the AD8227BRMZ-R7?
The gain can be set between 5 and 1000 using just one external resistor connected across the RG terminals.
- What is the common mode rejection ratio (CMRR) of the AD8227BRMZ-R7?
The CMRR of the AD8227BRMZ-R7 is 105 dB.
- What is the input bias current of the AD8227BRMZ-R7?
The input bias current is 20 nA).
- What is the maximum operating temperature of the AD8227BRMZ-R7?
The maximum operating temperature is +125°C).
- What package types are available for the AD8227BRMZ-R7?
The AD8227BRMZ-R7 is available in 8-MSOP and 8-TSSOP packages).
- Can the AD8227BRMZ-R7 handle voltages beyond the supply rails?
Yes, the AD8227BRMZ-R7 can handle voltages beyond the supply rails, for example, ±35 V at the input with a ±5 V supply).
- What is the slew rate of the AD8227BRMZ-R7?
The slew rate is 0.8 V/µs).
- What is the -3db bandwidth of the AD8227BRMZ-R7?
The -3db bandwidth is 250 kHz).
- Is the AD8227BRMZ-R7 RoHS compliant?
Yes, the AD8227BRMZ-R7 is RoHS compliant).
