Datasheet for AD7731:
- Manufacturer Part Number : AD7731
- Manufacturer : AD
- Description : Low Noise, High Throughput 24-Bit Sigma-Delta ADC
- Series : AD7731
- Reference Price : USD 10.256
- Our Price : We have a better price, contact us by email
- Product Type : Precision A/D Converters
- Function : Multiplexed A/D Converters
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : AD7731
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for AD7731. If you need any more information about AD7731, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
- 24-Bit Sigma-Delta ADC
- 16 Bits p-p Resolution at 800 Hz Output Rate
- Programmable Output Rates up to 6.4 kHz
- Programmable Gain Front End
- ±0.0015% Nonlinearity
- Buffered Differential Inputs
- Programmable Filter Cutoffs
- FASTStep™* Mode for Channel Sequencing
- Single Supply Operation
The AD7731 is a complete analog front-end for process controlapplications. The device has a proprietary programmable gainfront end that allows it to accept a range of input signal ranges,including low level signals, directly from a transducer. The sigmadeltaarchitecture of the part consists of an analog modulatorand a low pass programmable digital filter, allowing adjustmentof filter cutoff, output rate and settling time.
The part features three buffered differential programmable gainanalog inputs (which can be configured as five pseudo-differentialinputs), as well as a differential reference input. The part operatesfrom a single +5 V supply and accepts seven unipolar analoginput ranges: 0 to +20 mV, +40 mV, +80 mV, +160 mV,+320 mV, +640 mV and +1.28 V, and seven bipolar ranges:±20 mV, ±40 mV, ±80 mV, ±160 mV, ±320 mV, ±640 mV and±1.28 V. The peak-to-peak resolution achievable directly fromthe part is 16 bits at an 800 Hz output rate. The part can switchbetween channels with 1 ms settling time and maintain a performancelevel of 13 bits of peak-to-peak resolution.
The serial interface on the part can be configured for three-wireoperation and is compatible with microcontrollers and digitalsignal processors. The AD7731 contains self-calibration andsystem calibration options and features an offset drift of lessthan 5 nV/°C and a gain drift of less than 2 ppm/°C.
The part is available in a 24-lead plastic DIP, a 24-lead SOICand 24-lead TSSOP package.
Applications
- Process Control
- PLCs/DCS
- Industrial Instrumentation
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.