AD7715ARZ-5

AD7715 is a 5V, 450µA 16bit, Sigma-Delta ADC. It is a complete analogue front end for low frequency measurement applications. The part can accept low level input signals directly from a transducer and outputs a serial digital word. It employs a Σ-Δ conversion technique to realize up to 16bits of no missing codes performance. The input signal is applied to a proprietary programmable gain front end based around an analogue modulator. The modulator output is processed by an on-chip digital filter. The first notch of this digital filter can be programmed via the on-chip control register allowing adjustment of the filter cutoff and output update rate. The AD7715 is ideal for microcontroller or DSP processor applications with a three-wire serial interface reducing the number of interconnect lines and reducing the number of optocouplers required in isolated systems.

• Charge-balancing ADC: 16bits no missing codes, 0.0015% nonlinearity
• Programmable gain front end: Gains of 1, 2, 32, 128 and differential input capability
• Three-wire serial interface
• SPI-, QSPI™-, MICROWIRE™- and DSP-compatible
• Ability to buffer the analogue input: 5V operation
• Low supply current: 450µA maximum at 3V supplies
• Low-pass filter with programmable output update
• Excellent static performance specifications
• 16-lead standard small outline package [SOIC_W]
• Operating temperature range from -40°C to +85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party