Datasheet for AD7763:
- Manufacturer Part Number : AD7763
- Manufacturer : AD
- Description : 24-Bit, 625 kSPS, 109 dB Sigma-Delta ADC with On-Chip Buffers, Serial Interface
- Series : AD7763
- Reference Price : USD 15.176
- Our Price : We have a better price, contact us by email
- Product Type : Precision A/D Converters
- Function : Single Channel 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 : AD7763
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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- 120 dB dynamic range at 78 kHz output data rate
- 109 dB dynamic range at 625 kHz output data rate
- 112 dB SNR at 78 kHz output data rate
- 107 dB SNR at 625 kHz output data rate
- 625 kHz maximum fully filtered output word rate
- Programmable oversampling rate (32× to 256×)
- Flexible serial interface
- Please see data sheet for additional features.
The AD7763 high performance, 24-bit, Σ-Δ analog-to-digitalconverter (ADC) combines wide input bandwidth and high speed with the benefits of Σ-Δ conversion, as well as performanceof 107 dB SNR at 625 kSPS, making it ideal for high speed dataacquisition. A wide dynamic range, combined with significantly reduced antialiasing requirements, simplifies the design process. An integrated buffer to drive the reference, a differential amplifier for signal buffering and level shifting, an overrange flag, internal gain and offset registers, and a low-pass, digital FIR filter make the AD7763 a compact, highly integrated data acquisition device requiring minimal peripheral componentselection. In addition, the device offers programmable decimation rates and a digital FIR filter, which can be user-programmed to ensure that its characteristics are tailored for the user’s application. The AD7763 is ideal for applications demanding high SNR without necessitating the design of complex, front-end signal processing.
The differential input is sampled at up to 40 MSPS by an analogmodulator. The modulator output is processed by a series of low-pass filters, the final filter having default or user-programmable coefficients. The sample rate, filter corner frequencies, and output word rate are set by a combination of the external clock frequency and the configuration registers of the AD7763.
The reference voltage supplied to the AD7763 determines theanalog input range. With a 4 V reference, the analog input range is ±3.2 V differential-biased around a common mode of 2 V. This common-mode biasing can be achieved using the on-chip differential amplifiers, further reducing the external signal conditioning requirements.
The AD7763 is available in an exposed paddle, 64-lead TQFP_EPand is specified over the industrial temperature range from −40°C to +85°C.
Applications
- Data acquisition systems
- Vibration analysis
- 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.
