AD7715AR-5REEL

Overview

The AD7715AR-5REEL is a 16-bit, single-channel sigma-delta analog-to-digital converter manufactured by Analog Devices. It operates with an analog supply voltage of 5 V and a digital supply range of 3 V to 5.25 V. The device features a differential input structure and supports a maximum sampling rate of 500 S/s. Key static performance specifications include an integral nonlinearity of ±0.0015% FSR and a gain error of ±0.0015% FSR. Power consumption is characterized at 9.5 mW under typical operating conditions. The component is housed in a TSSOP-16 surface-mount package and is designed for low-frequency measurement applications requiring high precision.

Feature Summary

• Integrates a programmable gain front end with gains of 1, 2, 32, and 128 to accommodate direct sensor inputs.
• Includes on-chip self-calibration and system calibration capabilities to eliminate zero-scale and full-scale errors.
• Features a charge-balancing ADC architecture providing 16 bits of resolution without missing codes.
• Supports three-wire serial interface compatibility with SPI, QSPI, Microwire, and DSP systems.

Applications

• Smart transmitters
• Pressure measurement systems
• Temperature measurement instrumentation

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and reel configuration. Ensure that the AVDD and DVDD power supply requirements align with the target system design before finalizing procurement. Cross-reference the part number with official distributor catalogs to confirm availability status and lead times.

Selection Notes

Select this component for applications requiring a single-channel, low-speed, high-precision data acquisition solution. The integrated programmable gain amplifier reduces external signal conditioning requirements. Verify that the required output update rates and filter notch frequencies are compatible with the application's noise environment and bandwidth constraints.

Part Context

This component belongs to the AD7715 series of complete analog front ends designed for low-frequency measurement applications. It utilizes sigma-delta conversion technology to achieve high-resolution performance. The series is intended for use in microcontroller or DSP-based systems where low power consumption and minimal external components are critical design factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

What clock frequencies are supported by the AD7715?

The device supports master clock input frequencies of 1 MHz and 2.4576 MHz.

How does the AD7715 handle calibration?

The part contains on-chip registers that allow software control over calibration modes, including self-calibration and system calibration options to remove zero-scale and full-scale errors.

What is the input type of the AD7715?

The AD7715 features a differential analog input capability.