Overview
The AD7715ARUZ-3, produced by Analog Devices Inc., is a comprehensive analog front end 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 employs a proprietary programmable gain front end and an on-chip digital filter, allowing for adjustable filter cutoff and output update rates. The AD7715 operates from a single 3V supply and is suitable for use in smart, microcontroller, or DSP-based systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Supply Voltage | 3 V (AD7715-3), 5 V (AD7715-5) |
| Supply Current | 450 µA maximum @ 3 V supplies |
| Input Signal Ranges (Unipolar) | 0 mV to 20 mV, 0 mV to 80 mV, 0 V to 1.25 V, 0 V to 2.5 V |
| Input Signal Ranges (Bipolar) | ±20 mV, ±80 mV, ±1.25 V, ±2.5 V |
| Package Type | 16-Lead TSSOP |
| Operating Temperature Range | -40°C to +85°C |
| Standby Power Consumption | 50 μW typical |
Key Features
- Differential analog input and differential reference input
- Programmable gain front end and on-chip digital filter
- Adjustable filter cutoff and output update rates via on-chip control register
- Self-calibration and system calibration options to eliminate gain and offset errors
- Serial interface configurable for three-wire operation
- Low power dissipation with CMOS construction
- Power-down mode reducing standby power consumption
Applications
The AD7715ARUZ-3 is ideal for various low frequency measurement applications, including:
- Smart systems
- Microcontroller-based systems
- DSP-based systems
- Industrial control and automation
- Medical devices requiring precise analog-to-digital conversion
Q & A
- What is the resolution of the AD7715ARUZ-3?
The AD7715ARUZ-3 has a resolution of 16 bits.
- What are the supply voltage options for the AD7715ARUZ-3?
The AD7715ARUZ-3 can operate from a single 3V or 5V supply.
- What are the input signal ranges supported by the AD7715ARUZ-3?
The AD7715ARUZ-3 supports unipolar input signal ranges of 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 of ±20 mV, ±80 mV, ±1.25 V, and ±2.5 V.
- What type of package is the AD7715ARUZ-3 available in?
The AD7715ARUZ-3 is available in a 16-Lead TSSOP package.
- What is the operating temperature range of the AD7715ARUZ-3?
The operating temperature range is -40°C to +85°C.
- How does the AD7715ARUZ-3 manage power consumption?
The AD7715ARUZ-3 features low power dissipation with CMOS construction and a power-down mode that reduces standby power consumption to 50 μW typical.
- Can the AD7715ARUZ-3 be used in microcontroller-based systems?
Yes, the AD7715ARUZ-3 is suitable for use in microcontroller-based systems.
- Does the AD7715ARUZ-3 support self-calibration?
Yes, the AD7715ARUZ-3 includes self-calibration and system calibration options to eliminate gain and offset errors.
- How is the serial interface of the AD7715ARUZ-3 configured?
The serial interface can be configured for three-wire operation, and gain settings, signal polarity, and update rate selection can be configured in software using the input serial port.
- What types of applications is the AD7715ARUZ-3 ideal for?
The AD7715ARUZ-3 is ideal for low frequency measurement applications, including smart systems, microcontroller-based systems, DSP-based systems, industrial control, and medical devices.
