AD7760
PRODUCTION2.5 MSPS, 24-Bit, 100 dB Sigma-Delta ADC with On-Chip Buffer
- Part Models
- 2
- 1ku List Price
- Starting From $40.18
Part Details
- 120 dB dynamic range at 78 kHz output data rate
- 100 dB dynamic range at 2.5 MHz output data rate
- 112 dB SNR at 78 kHz output data rate
- 100 dB SNR at 2.5 MHz output data rate
- 2.5 MHz maximum fully filtered output word rate
- Fully differential modulator input
- Programmable oversampling rate (8X to 256X)
- On-chip differential amplifier for signal buffering
- Low-pass finite impulse response (FIR) filter with default or user-programmable coefficients
- Modulator output mode
- Overrange alert bit
- Digital offset and gain correction registers
The AD7760 is a high performance, 24-bit Σ-Δ analog-to-digital converter (ADC). It combines wide input bandwidth and high speed with the benefits of Σ-Δ conversion to achieve a performance of 100 dB SNR at 2.5 MSPS, making it ideal for high speed data acquisition. Wide dynamic range combined with significantly reduced antialiasing requirements simplify 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 AD7760 a compact, highly integrated data acquisition device requiring minimal peripheral component selection. In addition, the device offers programmable decimation rates, and the digital FIR filter can be adjusted if the default characteristics are not appropriate for the application. The AD7760 is ideal for applications demanding high SNR without a complex front-end signal processing design.
The differential input is sampled at up to 40 MSPS by an analog modulator. The modulator output is processed by a series of low-pass filters, with 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 AD7760.
The reference voltage supplied to the AD7760 determines the analog 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 amplifier, further reducing the external signal conditioning requirements.
The AD7760 is available in an exposed paddle, 64-lead TQFP and is specified over the industrial temperature range from −40°C to +85°C.
APPLICATIONS
- Data acquisition systems
- Vibration analysis
- Instrumentation
Documentation
Data Sheet 1
User Guide 1
Application Note 7
Technical Articles 2
Solutions Bulletin & Brochure 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7760BSVZ | 64-Lead TQFP (10mm x 10mm w/ EP) | ||
| AD7760BSVZ-REEL | 64-Lead TQFP (10mm x 10mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 15, 2016 - 14_0258 Assembly Transfer of Selected 14x14 LQFP, 14x14 LQFP_EP and 7x7,10x10,12x12,14x14 TQFP_EP Products to Amkor Philippines |
||
| AD7760BSVZ | PRODUCTION | |
| AD7760BSVZ-REEL | PRODUCTION | |
|
Jun 16, 2009 - 09_0027 Conversion to Laser Mark for the LQFP Packages (Single Grades) |
||
| AD7760BSVZ | PRODUCTION | |
| AD7760BSVZ-REEL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
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Tools & Simulations
Sigma-Delta ADC Tutorial
An interactive illustration showing the behavior of an idealized sigma-delta A/D converter.
Open ToolEvaluation Kits
AD7760 / AD7762 Evaluation Board