AD717x Family
AD717x Family
Designed for a Wide Variety of Applications
The AD717x family offer a complete integrated Sigma-Delta ADC solution which can be used in high precision, low noise single channel applications (Life Science measurements) or higher speed multiplexed applications (Factory Automation PLC Input modules). The Sigma-Delta ADC is intended primarily for measurement of signals close to DC but also delivers outstanding performance with input bandwidths out to ~10kHz.
VIDEO – EVAL+: ADC Performance & Functional Evaluation Without Hardware
AD7175-2 EVAL+ Software – a single software platform enabling configuration, analysis and ADC selection for use with and without evaluation hardware.
New Tool – Virtual Eval Tool - BETA
Evaluate ADCs and DACs by quickly simulating crucial part performance characteristics. Find the family by entering AD717 in the tool's Product Search field.
Featured Products
24-Bit, 250 kSPS, Sigma-Delta ADC with 20 µs Settling and True Rail-to-Rail Buffers
24-Bit, 8-/16-Channel, 250 kSPS, Sigma-Delta ADC with True Rail-to-Rail Buffers
24-Bit, 250 kSPS Sigma Delta ADC with 20 µs Settling
32-Bit, 10 kSPS, Sigma-Delta ADC with 100 µs Settling and True Rail-to-Rail Buffers
Low Power, 24-Bit, 31.25 kSPS, Sigma-Delta ADC with True Rail-to-Rail Buffers
Low Power, with 4- or 8-channel, 24-bit, 31.25 kSPS, Sigma-Delta ADC with True Rail-to-Rail Buffers
Low Power, 8-/16-Channel, 31.25 kSPS, 24-Bit, Highly Integrated Sigma-Delta ADC
Features and Benefits
Fast and Flexible Output Rate: 5 SPS to 250 kSPS
Channel Scan Data Rate of 50 kSPS/Channel (20 µs Settling)
Performance Specifications
- 17.2 Noise free bits @ 250 kSPS
- 20 Noise free bits @ 2.5 kSPS
- 24 Noise free bits@ 20SPS
- INL: ±1 ppm of FSR
85 dB Rejection of 50 Hz and 60 Hz with 50 ms Settling
User Configurable Input Channels
- 2 Fully differential channels or 4 single-ended channels
- Crosspoint multiplexer
On-Chip 2.5 V Reference (±2 ppm/°C Drift)
True Rail-to-Rail Analog and Reference Input Buffers
Evaluation Boards
AD7172-2 Evaluation Board
AD7172-4 Evaluation Board
AD7173-8SDZ Evaluation Board
AD7175-2 Evaluation Board
AD7175-8 Evaluation Board
AD7176-2 Evaluation Board
AD7177-2 Evaluation Board
Learn More
AD717x Performance
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The AD717x family offers performance (noise and speed of conversion) selection options and with the added flexibility and functionality to select from a variety of channel counts, it makes the AD717x family an ideal platform for your next generation of high precision and density designs.
The Core ADC
The AD7175x core ADC has established new standards in both the speed and noise performance. A maximum output data rate of 250 kSPS (this is 20us¦50 kSPS per channel muxed) is achieved, while delivering greater than 24 noise free bits in the sub 1kHz output data rate (32-bit: AD7177-2 ADC). These performance metrics are achieved in a power efficient manner with other family members offering a pin-pin and software compatible path to lower power as desired.
Integrated Analog Blocks
The degree of signal chain integration on the AD717x family reduces the challenge for the system designer and greatly simplifies design. The inclusion of true rail to rail analog input buffers eliminate the need for time consuming and difficult external component selection and evaluation. The AD717x rail to rail buffers maximize the input range in any applications and allow the ADC to measure all the way to both rails without degradation in linearity or accuracy. As both the input stage and the full ADC path is chopped the 1/f noise of the measurement path is reduced allowing higher sensitivity for measuring signals at or close to DC.
Integrated Digital Blocks
Integrated digital blocks allow platform designs be re-purposed easily to suit particular measurement need. The highly configurable digital filter enables tuning of settling times, bandwidth and rejection of specific interferers. The cross point multiplexer combined with intelligent and per channel configurable sequencer creates the sense that you are deploying/employing an ADC per channel. The degree of functionality integrated in the AD717x family makes implementing both on-chip and system diagnostics easier, while the improved robust SPI port including CRC error detection results in higher confidence and fidelity between the ADC and uC / DSP / CPU when using any member of the AD717x family.
Extensive Toolset and Collateral Available
Designing with the AD717x family is helped by the extensive toolset and collateral available. Eval+ is our next generation customer evaluation software which provides an all in one download enabling a virtual evaluation via embedded functional model before moving to silicon evaluation with a fully featured customer evaluation board. All generics come with a fully featured customer evaluation board with options for analog preconditioning prototyping i.e. amplifiers, reference, a full power solution. There are multiple connectivity options for evaluating with the SDP-B controller board or alternatively as in standalone operation connecting to your existing digital host module or alternatively to the latest evaluation kits for microcontrollers, DSP or PMOD connector controllers.
Application specific CFTLs with availability can kick start your system level developments reducing risk, and give you a less expensive prototyping route.
No-OS example C-code drivers ease translation from our device datasheets into firmware configuration, control and data readback.