Model No: AD8227BRMZ
Analog Devices Inc. AD8227BRMZ
Manufacturer: Analog Devices Inc.
SEMICON NO.: AD8227BRMZ
Package: 8-MSOP
Stock: In stock
Description: Instrumentation Amplifier 1 Circuit Rail-to-Rail 250 kHz
SEMICON NO.: AD8227BRMZ
Package: 8-MSOP
Stock: In stock
Description: Instrumentation Amplifier 1 Circuit Rail-to-Rail 250 kHz
Quantity :
| Mfr | Analog Devices Inc. |
| Device Type | Single-Channel, Wide Supply Range Instrumentation Amplifier |
| -3 dB Bandwidth | 250 kHz |
| Slew Rate | 0.8 V/µs (typical) |
| Gain Range | 5 V/V to 1000 V/V |
| Common-Mode Rejection Ratio (CMRR) | 100 dB (min) / 110 dB (typical) |
| Input Voltage Noise Density | 24 nV/√Hz @ 1 kHz |
| Input Offset Voltage | 100 µV (max) / 200 µV (typical) |
| Input Bias Current | 20 nA |
| Input Offset Current | 1.5 nA |
| Input Offset Voltage Drift | 200 nV/°C (typical) |
| Input Resistance | 60 kΩ |
| Output Type | Rail-to-Rail Output |
| Output Current per Channel | 13 mA |
| Supply Voltage | Single: 2.2 V to 36 V, Dual: ±1.5 V to ±18 V |
| Quiescent Current | 350 µA (typical) / 400 µA (nominal) |
| Power Supply Rejection Ratio (PSRR) | 100 dB |
| Operating Temperature | –40°C to +125°C |
| Package | 8-MSOP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
AD8227BRMZ ADI Wide-Supply, Rail-to-Rail Output Instrumentation Amplifier MSOP-8
The AD8227BRMZ from Analog Devices is a low-cost, wide-supply-range instrumentation amplifier that requires only one external resistor to set any gain between 5 and 1000, housed in a compact 8-lead MSOP package. Operating on supplies from 2.2 V to 36 V single-ended (±1.5 V to ±18 V dual), it features a rail-to-rail output that makes full use of the supply rails, an input common-mode range that extends below the negative supply for amplifying small ground-referenced signals without dual rails, and robust inputs guaranteed to withstand voltages up to ±40 V beyond the supplies without damage. The B-grade device delivers 100 dB minimum CMRR at G = 5 (DC to 60 Hz), 24 nV/√Hz input voltage noise, 100 µV input offset, 350 µA quiescent current, and 0.8 V/µs slew rate, fully specified over −40 °C to +125 °C.
Highlights & Applications
● Single-resistor gain programming from 5 to 1000 via the formula G = 5 + (80 kΩ/RG), allowing precise gain setting with one standard resistor between the RG pins.
● Rail-to-rail output swing that maximizes dynamic range, with 13 mA output current capability driving loads directly.
● Input common-mode range that extends below the negative supply, enabling single-supply amplification of ground-referenced signals without a negative rail.
● Inputs protected beyond the supply rails to ±40 V, surviving real-world sensor faults and wiring errors with guaranteed ruggedness.
● Low 24 nV/√Hz input voltage noise with 100 fA/√Hz current noise, suitable for precision bridge and sensor conditioning.
● Low 350 µA typical supply current across the full supply range, minimizing power in portable and multichannel systems.
The AD8227BRMZ is engineered for precision signal conditioning of small differential signals across industrial and portable systems. Typical applications include industrial process controls monitoring 4-20 mA loops and pressure transducers, bridge amplifiers for strain gauges and load cells, medical instrumentation including ECG and patient monitoring front ends, portable data acquisition systems running from batteries, and multichannel measurement systems where the MSOP package and low quiescent current save board space and power in high-density designs.
Frequently Asked Questions
Q: How does the AD8227 differ from the AD8226? The AD8227 offers a gain range of 5 to 1000, while the AD8226 provides G = 1 to 1000 via G = 1 + (49.4 kΩ/RG); the AD8227 also accepts higher supply voltages (36 V vs. 36 V) and tolerates inputs 40 V beyond the rails.
Q: Can the inputs survive voltages beyond the supplies? Yes — the inputs are guaranteed to withstand −VS + 40 V to +VS − 40 V without damage, protecting against sensor faults and miswiring in real-world systems.
Alternative / Replacement rail-to-rail amplifier Models
● AD8226BRMZ — Pin-compatible sibling offering gain range of 1 to 1000 via G = 1 + (49.4 kΩ/RG), enabling unity-gain operation where the AD8227 cannot go below G = 5.
● AD8221BRMZ — Higher-precision in-amp delivering 130 dB CMRR and lower drift for the most demanding precision measurement front ends.
● AD8422BRZ — Newer high-precision, low-noise rail-to-rail in-amp with superior CMRR and drift specifications, recommended for new designs.
● AD8429 — Ultra-low-noise instrumentation amplifier for the lowest-noise sensor applications requiring sub-10 nV/√Hz performance.
The AD8227BRMZ from Analog Devices is a low-cost, wide-supply-range instrumentation amplifier that requires only one external resistor to set any gain between 5 and 1000, housed in a compact 8-lead MSOP package. Operating on supplies from 2.2 V to 36 V single-ended (±1.5 V to ±18 V dual), it features a rail-to-rail output that makes full use of the supply rails, an input common-mode range that extends below the negative supply for amplifying small ground-referenced signals without dual rails, and robust inputs guaranteed to withstand voltages up to ±40 V beyond the supplies without damage. The B-grade device delivers 100 dB minimum CMRR at G = 5 (DC to 60 Hz), 24 nV/√Hz input voltage noise, 100 µV input offset, 350 µA quiescent current, and 0.8 V/µs slew rate, fully specified over −40 °C to +125 °C.
Highlights & Applications
● Single-resistor gain programming from 5 to 1000 via the formula G = 5 + (80 kΩ/RG), allowing precise gain setting with one standard resistor between the RG pins.
● Rail-to-rail output swing that maximizes dynamic range, with 13 mA output current capability driving loads directly.
● Input common-mode range that extends below the negative supply, enabling single-supply amplification of ground-referenced signals without a negative rail.
● Inputs protected beyond the supply rails to ±40 V, surviving real-world sensor faults and wiring errors with guaranteed ruggedness.
● Low 24 nV/√Hz input voltage noise with 100 fA/√Hz current noise, suitable for precision bridge and sensor conditioning.
● Low 350 µA typical supply current across the full supply range, minimizing power in portable and multichannel systems.
The AD8227BRMZ is engineered for precision signal conditioning of small differential signals across industrial and portable systems. Typical applications include industrial process controls monitoring 4-20 mA loops and pressure transducers, bridge amplifiers for strain gauges and load cells, medical instrumentation including ECG and patient monitoring front ends, portable data acquisition systems running from batteries, and multichannel measurement systems where the MSOP package and low quiescent current save board space and power in high-density designs.
Frequently Asked Questions
Q: How does the AD8227 differ from the AD8226? The AD8227 offers a gain range of 5 to 1000, while the AD8226 provides G = 1 to 1000 via G = 1 + (49.4 kΩ/RG); the AD8227 also accepts higher supply voltages (36 V vs. 36 V) and tolerates inputs 40 V beyond the rails.
Q: Can the inputs survive voltages beyond the supplies? Yes — the inputs are guaranteed to withstand −VS + 40 V to +VS − 40 V without damage, protecting against sensor faults and miswiring in real-world systems.
Alternative / Replacement rail-to-rail amplifier Models
● AD8226BRMZ — Pin-compatible sibling offering gain range of 1 to 1000 via G = 1 + (49.4 kΩ/RG), enabling unity-gain operation where the AD8227 cannot go below G = 5.
● AD8221BRMZ — Higher-precision in-amp delivering 130 dB CMRR and lower drift for the most demanding precision measurement front ends.
● AD8422BRZ — Newer high-precision, low-noise rail-to-rail in-amp with superior CMRR and drift specifications, recommended for new designs.
● AD8429 — Ultra-low-noise instrumentation amplifier for the lowest-noise sensor applications requiring sub-10 nV/√Hz performance.
