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AD8227
PRODUCTIONWide Supply Range, Rail-to-Rail Output Instrumentation Amplifier
- Part Models
- 12
- 1ku List Price
- Starting From $1.22
Part Details
- Gain set with 1 external resistor
Gain range: 5 to 1000 - Input voltage goes below ground
- Inputs protected beyond supplies
- Very wide power supply range
Single supply: 2.2 V to 36 V
Dual supply: ±1.5 V to ±18 V - Bandwidth (G = 5): 250 kHz
- CMRR (G = 5): 100 dB minimum (B Grade)
- Input noise: 24 nV/√Hz
- Typical supply current: 350 μA
- Specified temperature: −40°C to +125°C
- 8-lead SOIC and MSOP packages
The AD8227 is a low cost, wide supply range instrumentation amplifier that requires only one external resistor to set any gain between 5 and 1000. The AD8227 is designed to work with a variety of signal voltages. A wide input range and rail-to-rail output allow the signal to make full use of the supply rails. Because the input range can also go below the negative supply, small signals near ground can be amplified without requiring dual supplies. The AD8227 operates on supplies ranging from ±1.5 V to ±18 V (2.2 V to 36 V single supply).
The robust AD8227 inputs are designed to connect to real-world sensors. In addition to its wide operating range, the AD8227 can handle voltages beyond the rails. For example, with a ±5 V supply, the part is guaranteed to withstand ±35 V at the input with no damage. Minimum as well as maximum input bias currents are specified to facilitate open wire detection. The AD8227 is ideal for multichannel, space-constrained applications. With its MSOP package and 125°C temperature rating, the AD8227 thrives in tightly packed, zero airflow designs.
The AD8227 is available in 8-pin MSOP and SOIC packages. It is fully specified for −40°C to +125°C operation.
For a similar instrumentation amplifier with a gain range of 1 to 1000, see the AD8226.
Applications
Documentation
Data Sheet 1
User Guide 1
Application Note 2
Technical Articles 2
Technical Book 1
Rarely Asked Question Page 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| 1PAD8227BRZ | N/A | ||
| AD8227ARMZ | 8-Lead MSOP | ||
| AD8227ARMZ-R7 | 8-Lead MSOP | ||
| AD8227ARMZ-RL | 8-Lead MSOP | ||
| AD8227ARZ | 8-Lead SOIC | ||
| AD8227ARZ-R7 | 8-Lead SOIC | ||
| AD8227ARZ-RL | 8-Lead SOIC | ||
| AD8227BRMZ | 8-Lead MSOP | ||
| AD8227BRMZ-R7 | 8-Lead MSOP | ||
| AD8227BRMZ-RL | 8-Lead MSOP | ||
| AD8227BRZ | 8-Lead SOIC | ||
| AD8227BRZ-R7 | 8-Lead SOIC |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 4, 2023 - 22_0142 Qualification of an Alternate Wafer Fab for High Voltage Bipolar Products (HVBIP) to Analog Devices, Inc. Wilmington MA |
||
| AD8227ARMZ | PRODUCTION | |
| AD8227ARMZ-R7 | PRODUCTION | |
| AD8227ARMZ-RL | PRODUCTION | |
| AD8227ARZ | PRODUCTION | |
| AD8227ARZ-R7 | PRODUCTION | |
| AD8227ARZ-RL | PRODUCTION | |
| AD8227BRMZ | PRODUCTION | |
| AD8227BRMZ-R7 | PRODUCTION | |
| AD8227BRMZ-RL | PRODUCTION | |
| AD8227BRZ | PRODUCTION | |
| AD8227BRZ-R7 | PRODUCTION | |
|
Aug 11, 2015 - 15_0161 AD8226, AD8227: Addition of Polyimide Alignment Target |
||
| AD8227ARMZ | PRODUCTION | |
| AD8227ARMZ-R7 | PRODUCTION | |
| AD8227ARMZ-RL | PRODUCTION | |
| AD8227ARZ | PRODUCTION | |
| AD8227ARZ-R7 | PRODUCTION | |
| AD8227ARZ-RL | PRODUCTION | |
| AD8227BRMZ | PRODUCTION | |
| AD8227BRMZ-R7 | PRODUCTION | |
| AD8227BRMZ-RL | PRODUCTION | |
| AD8227BRZ | PRODUCTION | |
| AD8227BRZ-R7 | PRODUCTION | |
|
May 15, 2012 - 10_0006 Halogen Free Material Change for mini SOIC Products |
||
| AD8227ARMZ | PRODUCTION | |
| AD8227ARMZ-R7 | PRODUCTION | |
| AD8227ARMZ-RL | PRODUCTION | |
| AD8227BRMZ | PRODUCTION | |
| AD8227BRMZ-R7 | PRODUCTION | |
| AD8227BRMZ-RL | PRODUCTION | |
|
Sep 24, 2009 - 09_0200 Addition of Polyimide layer on AD8226, and AD8227. |
||
| AD8227ARMZ | PRODUCTION | |
| AD8227ARMZ-R7 | PRODUCTION | |
| AD8227ARMZ-RL | PRODUCTION | |
| AD8227ARZ | PRODUCTION | |
| AD8227ARZ-R7 | PRODUCTION | |
| AD8227ARZ-RL | PRODUCTION | |
| AD8227BRMZ | PRODUCTION | |
| AD8227BRMZ-R7 | PRODUCTION | |
| AD8227BRMZ-RL | PRODUCTION | |
| AD8227BRZ | PRODUCTION | |
| AD8227BRZ-R7 | PRODUCTION | |
|
Nov 23, 2010 - 10_0004 Halogen Free Material Change for SOIC Narrow Body Products Assembled at Amkor |
||
| AD8227ARZ | PRODUCTION | |
| AD8227ARZ-R7 | PRODUCTION | |
| AD8227ARZ-RL | PRODUCTION | |
| AD8227BRZ | PRODUCTION | |
| AD8227BRZ-R7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- AD8227
In-Amp Diamond Plot Tool
The Diamond Plot Tool is a web application that generates a configuration-specific Output Voltage Range vs. Input Common-Mode Voltage graph, also known as the Diamond Plot, for Analog Devices Instrumentation Amplifiers. Based on user inputs such as supply voltage, gain, and input signal range, the tool detects saturation and recommends in-amps for which the input signal is in-range and the configuration is valid. Avoid saturation, find the best in-amp for your design, and save time.
Open ToolSignal Chain Designer - BETA
Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.
Open ToolSPICE Model 1
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
AD62x, AD822x, AD842x Series InAmp Evaluation Board