AD7617
16-Channel DAS with 14-Bit, Bipolar Input, Dual Simultaneous Sampling ADC
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Overview
Features and Benefits
- 16-channel, dual, simultaneously sampled inputs
- Independently selectable channel input ranges
- True bipolar: ±10 V, ±5 V, ±2.5 V
- Single 5 V analog supply and 2.3 V to 3.6 V VDRIVE supply
- Fully integrated data acquisition solution
- Analog input clamp protection
- Input buffer with 1 MΩ analog input impedance
- First-order antialiasing analog filter
- On-chip accurate reference and reference buffer
- Dual 14-bit SAR ADC
- Throughput rate: 2× 1 MSPS per channel pair
- Oversampling capability with digital filter
- Flexible sequencer with burst mode
- Flexible parallel/serial interface
- SPI/QSPI/MICROWIRE/DSP compatible
- Optional CRC error checking
- Hardware/software configuration
- Performance
- 85.3 dB typical SNR at 500 kSPS (2× oversampling)
- 85 dB typical SNR at 1 MSPS
- −103 dB typical THD at ±10 V range
- ±0.3 LSB INL (typical), ±0.99 LSB DNL (maximum)
- 8 kV ESD analog input pins only
- On-chip self detect function
- 80-lead LQFP package
Product Details
The AD7617 is a 14-bit, DAS that supports dual simultaneous sampling of 16 channels. The AD7617 operates from a single +5 V supply and can accommodate ±10 V, ±5 V, and ±2.5 V true bipolar input signals while sampling at throughput rates up to 1 MSPS per channel pair with 85 dB signal-to-noise ratio (SNR). Higher SNR performance can be achieved with the on-chip oversampling mode (85.3 dB for an oversampling ratio (OSR) of 2).
The input clamp protection circuitry can tolerate voltages up to ±21 V. The AD7617 has 1 MΩ analog input impedance, regardless of sampling frequency. The single-supply operation, on-chip filtering, and high input impedance eliminate the need for driver op amps and external bipolar supplies.
The device contains analog input clamp protection, a dual, 14-bit charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC), a flexible digital filter, a 2.5 V reference and reference buffer, and high speed serial and parallel interfaces. The AD7617 is serial peripheral interface (SPI)/QSPI™/DSP/MICROWIRE compatible.
Applications
- Power line monitoring
- Protective relays
- Multiphase motor control
- Instrumentation and control systems
- Data acquisition systems (DASs)
Product Lifecycle
Production
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.
Evaluation Kits (1)
Documentation & Resources
Software & Systems Requirements
Device Drivers
Tools & Simulations
IBIS Model
IBS
AD7616/AD7617 IBIS Model
89.46 K
Product Recommendations
AD7617 Companion Parts
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD7617BSTZ | Material Declaration | Reliability Data | 80-Lead LQFP (14mm x 14mm) | |
| AD7617BSTZ-RL | Material Declaration | Reliability Data | 80-Lead LQFP (14mm x 14mm) | |
| Wafer Fabrication Data |
Sample & Buy
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Buy Now Pricing
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List Pricing
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.