Overview
The AD7715ARZ-5 from Analog Devices Inc. is a comprehensive analog front end solution designed for low-frequency measurement applications. This 16-bit Sigma-Delta Analog-to-Digital Converter (ADC) is capable of accepting low-level input signals directly from transducers and outputting a serial digital word. It features a proprietary programmable gain front end and an on-chip digital filter, making it ideal for use in industrial applications, research laboratories, and test and measurement systems. The AD7715ARZ-5 operates from a single supply voltage of 5 V and is available in a 16-lead SOIC package.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Series | AD7715 |
| Mounting Style | SMD/SMT | Resolution | 16 bit |
| Number of Channels | 1 Channel | Sampling Rate | 500 S/s |
| Input Type | Differential | Interface Type | 3-Wire, QSPI, SPI |
| Architecture | Sigma-Delta | Reference Type | External |
| SNR - Signal to Noise Ratio | 98 dB | Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +85°C | Packaging | Reel |
| Height | 2.35 mm | Input Voltage | 0.02 V/0.08 V/1.25 V/2.5 V |
| Length | 10.5 mm | Number of Converters | 1 Converter |
| Width | 7.6 mm | Brand | Analog Devices |
| Development Kit | EVAL-AD7715-3EBZ | Gain Error | +/- 0.0015 %FSR |
| INL - Integral Nonlinearity | +/- 0.0015 % FSR | Moisture Sensitive | Yes |
| Number of ADC Inputs | 1 Input | Operating Supply Voltage | 5 V |
| Pd - Power Dissipation | 9.5 mW | Sample and Hold | No |
| Factory Pack Quantity | 1000 | Unit Weight | 0.023492 oz |
Key Features
- Fast Sampling Rate and Low Latency: The AD7715ARZ-5 offers a sampling rate of 500 S/s and low latency digital output, ensuring rapid and accurate data conversion.
- Programmable Gain Front End: The device features a programmable gain input that allows it to accept input signals directly from strain gages or transducers, reducing the need for additional signal conditioning.
- Low Power Consumption: With a total supply current of less than 450 µA at 3 V supplies and a standby current of less than 10 µA, it is ideal for low-power systems.
- Differential Input and Reference: The AD7715ARZ-5 has differential analog and reference inputs, supporting various unipolar and bipolar input signal ranges.
- Three-Wire Serial Interface: Compatible with SPI, QSPI, and MICROWIRE, this interface reduces the number of interconnect lines and optocouplers required in isolated systems.
- Self-Calibration and System Calibration: Options to eliminate gain and offset errors, ensuring high accuracy and reliability.
- Low-Pass Filter with Programmable Output Update: The digital filter's cutoff and output update rate can be adjusted via the on-chip control register.
Applications
The AD7715ARZ-5 is versatile and suitable for various applications, including:
- Industrial Applications: Ideal for industrial measurement and control systems due to its high accuracy and reliability.
- Research Laboratories: Used in research settings for precise data acquisition and analysis.
- Test and Measurement Systems: Employed in test and measurement equipment for its ability to handle low-level input signals directly from transducers.
- Smart, Microcontroller, or DSP-Based Systems: Suitable for integration into smart systems, microcontrollers, or DSP processors due to its serial interface and low power consumption.
Q & A
- What is the resolution of the AD7715ARZ-5?
The AD7715ARZ-5 has a resolution of 16 bits with no missing codes performance.
- What is the sampling rate of the AD7715ARZ-5?
The sampling rate of the AD7715ARZ-5 is 500 S/s.
- What types of input signals can the AD7715ARZ-5 handle?
The AD7715ARZ-5 can handle both unipolar and bipolar input signal ranges, including 0 mV to 20 mV, 0 mV to 80 mV, 0 V to 1.25 V, and 0 V to 2.5 V, as well as bipolar ranges referenced to the negative input.
- What is the power consumption of the AD7715ARZ-5?
The AD7715ARZ-5 consumes less than 450 µA in total supply current at 3 V supplies and has a standby current of less than 10 µA.
- What types of packages are available for the AD7715ARZ-5?
The AD7715ARZ-5 is available in 16-lead SOIC, PDIP, and TSSOP packages.
- Does the AD7715ARZ-5 support self-calibration?
Yes, the AD7715ARZ-5 includes self-calibration and system calibration options to eliminate gain and offset errors.
- What is the operating temperature range of the AD7715ARZ-5?
The operating temperature range is from -40°C to +85°C.
- Is the AD7715ARZ-5 RoHS compliant?
Yes, the AD7715ARZ-5 is RoHS compliant.
- What is the interface type of the AD7715ARZ-5?
The AD7715ARZ-5 features a three-wire serial interface compatible with SPI, QSPI, and MICROWIRE.
- Does the AD7715ARZ-5 have a programmable low-pass filter?
Yes, the AD7715ARZ-5 has a low-pass filter with a programmable output update rate.
