AD7617
PRODUCTION16-Channel DAS with 14-Bit, Bipolar Input, Dual Simultaneous Sampling ADC
- Part Models
- 2
- 1ku List Price
- Starting From $13.81
Part Details
- 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
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)
Documentation
Data Sheet 1
User Guide 1
Application Note 2
Device Drivers 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 |
|---|---|---|---|
| AD7617BSTZ | 80-Lead LQFP (14mm x 14mm) | ||
| AD7617BSTZ-RL | 80-Lead LQFP (14mm x 14mm) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Can't find the software or driver you need?
Hardware Ecosystem
Tools & Simulations
IBIS Model 1
Evaluation Kits
AD7616/AD7616-P Evaluation Board