Overview
The AD627BRZ-R7, produced by Analog Devices Inc., is an integrated, micropower instrumentation amplifier designed to deliver high performance with low power consumption. It operates with a maximum supply current of 85 μA and supports a wide power supply range from +2.2 V to ±18 V. This amplifier is ideal for various applications, including battery-powered devices and industrial systems, due to its rail-to-rail output swing and high accuracy dc performance.
Key Specifications
| Parameter | Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Gain Range | G = +5 to +1000 | 5 | - | 1000 | V/V |
| Gain Error (G = +5) | - | 0.03% | 0.10% | 0.01% | % |
| Input Offset Voltage (VOSI) | - | 25 μV | 250 μV | - | μV |
| Input Offset Voltage Drift | - | 1 μV/°C | 3 μV/°C | - | μV/°C |
| Common-Mode Rejection Ratio (CMRR) | G = +5 | 77 dB | - | - | dB |
| Bandwidth (G = +5) | - | - | 80 kHz | - | kHz |
| Slew Rate | - | - | 0.05/−0.07 V/μs | - | V/μs |
| Settling Time to 0.01% (G = +5, 5 V step) | - | - | 135 μs | - | μs |
| Quiescent Current | - | 60 μA | 85 μA | - | μA |
| Operating Temperature Range | - | -40°C | - | +85°C | °C |
Key Features
- Micropower operation with a maximum supply current of 85 μA.
- Wide power supply range from +2.2 V to ±18 V.
- Rail-to-rail output swing for maximum dynamic range.
- High accuracy dc performance with low voltage offset, offset drift, gain error, and gain drift.
- Excellent CMRR over frequency, rejecting line noise and harmonics up to 200 Hz.
- Easy to use with gain set by a single external resistor; gain range from 5 to 1000.
- Available in 8-lead SOIC and PDIP packages.
- Superior performance compared to discrete designs, using less circuit board area and costing less.
Applications
- Battery-powered applications due to low power consumption and rail-to-rail output swing.
- Industrial applications, including 4 to 20 mA loop-powered systems.
- Data acquisition systems and industrial process controls.
- Medical instrumentation and transducer interfaces.
- Weigh scales and other precision measurement systems.
Q & A
- What is the maximum supply current of the AD627BRZ-R7?
The maximum supply current is 85 μA.
- What is the power supply range for the AD627BRZ-R7?
The power supply range is from +2.2 V to ±18 V.
- How is the gain of the AD627BRZ-R7 set?
The gain is set using a single external resistor and can range from 5 to 1000.
- What is the typical gain error for the AD627BRZ-R7 at a gain of +5?
The typical gain error is 0.03%.
- What is the common-mode rejection ratio (CMRR) of the AD627BRZ-R7 at a gain of +5?
The CMRR is 77 dB minimum.
- What is the bandwidth of the AD627BRZ-R7 at a gain of +5?
The bandwidth is 80 kHz.
- What is the settling time to 0.01% for the AD627BRZ-R7 at a gain of +5 and a 5 V step?
The settling time is 135 μs.
- What are the typical applications of the AD627BRZ-R7?
Typical applications include battery-powered devices, industrial systems, data acquisition systems, medical instrumentation, and precision measurement systems.
- What are the available package types for the AD627BRZ-R7?
The AD627BRZ-R7 is available in 8-lead SOIC and PDIP packages.
- How does the AD627BRZ-R7 compare to discrete designs in terms of performance and cost?
The AD627BRZ-R7 provides superior performance, uses less circuit board area, and costs less than micropower discrete designs.
