AD623
单电源，轨到轨，低成本仪表放大器 Single Supply, Rail-to-Rail, Low Cost Instrumentation Amplifier
Product Details
The is an integrated, single- or dual-supply instrumentation amplifier that delivers rail-to-rail output swing using supply voltages from 3 V to 12 V. The AD623 offers superior user flexibility by allowing single gain set resistor programming and by conforming to the 8-lead industry standard pinout configuration. With no external resistor, the AD623 is configured for unity gain G = 1, and with an external resistor, the AD623 can be programmed for gains of up to 1000.
The superior accuracy of the AD623 is the result of increasing ac common-mode rejection ratio CMRR coincident with increasing gain; line noise harmonics are rejected due to constant CMRR up to 200 Hz. The AD623 has a wide input common-mode range and amplifies signals with commonmode voltages as low as 150 mV below ground. The AD623 maintains superior performance with dual and single polarity power supplies.
Applications
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- Low power medical instrumentation
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- Transducer interfaces
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- Thermocouple amplifiers
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- Industrial process controls
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- Difference amplifiers
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- Low power data acquisition
### Features and Benefits
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- Easy to use
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- Rail-to-rail output swing
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- Input voltage range extends 150 mV below ground single supply
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- Low power, 550 μA maximum supply current
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- Gain set with one external resistor
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- Gain range: 1 to 1000
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- High accuracy dc performance
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- 0.10% gain accuracy G = 1
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- 0.35% gain accuracy G > 1
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- Noise: 35 nV/√Hz RTI noise at 1 kHz
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- Excellent dynamic specifications
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- 800 kHz bandwidth G = 1
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- 20 μs settling time to 0.01% G = 10
