AD7730BN - Brand New Analog Devices Analog Front End (AFEs)
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Description
The AD7730BN is an analog front end (AFE) device designed for pressure and weigh-scale measurement applications. It features two buffered differential programmable gain analog inputs, as well as a differential reference input, and can accept both unipolar and bipolar analog input ranges. The device operates from a single +5 V supply and contains self-calibration and system calibration options. Its serial interface is configurable for three-wire operation and compatible with microcontrollers and digital signal processors. The AD7730BN is available in a 24-pin plastic DIP, a 24-lead SOIC, and a 24-lead TSSOP package.
Specifications and features
- Resolution of 230,000 counts (peak-to-peak)
- Offset drift: 5 nV/°C
- Gain drift: 2 ppm/°C
- Line frequency rejection: >150 dB
- Buffered differential inputs
- Programmable filter cutoffs
- Specified for drift over time
- Compatible with reference voltages of 1 V to 5 V
Application Scenarios
The AD7730BN is commonly used in weigh scale and pressure measurement applications due to its ability to accept low level signals directly from a transducer and its programmable gain front end based on an analog modulator. It is also suitable for applications requiring self-calibration and system calibration options along with compatibility with microcontrollers and digital signal processors through its serial interface.
Comparison
Advantages- High resolution of 230,000 counts (peak-to-peak)
- Low offset drift of 5 nV/°C and gain drift of 2 ppm/°C
- Programmable filter cutoffs and compatibility with reference voltages of 1 V to 5 V
- Self-calibration and system calibration options available
Disadvantages- Limited to pressure and weigh-scale measurement applications
- Serial interface is only configurable for three-wire operation
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Datasheet
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Shopping guide
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- Datasheet: Download AD7730BN
- Chipdatas Part: CD87-AD7730BN
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/12 10:36 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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