Overview
The AD7715ARUZ-5REEL7 is a 16-bit, sigma-delta analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed as a complete analog front end for low-frequency measurement applications. It can accept low-level input signals directly from a transducer and outputs a serial digital word. The AD7715 employs a sigma-delta (Σ-Δ) conversion technique to achieve up to 16 bits of no missing codes performance. It features a proprietary programmable gain front end and an on-chip digital filter, allowing for adjustable filter cutoff and output update rates. The device operates from a single supply voltage of either 3 V or 5 V and is suitable for use in smart, microcontroller, or DSP-based systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Conversion Technique | Sigma-Delta (Σ-Δ) |
| Supply Voltage | 3 V or 5 V |
| 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 |
| Power-Down Mode | 50 μW typical |
Key Features
- Differential analog input and differential reference input
- Programmable gain front end and digital filter
- Serial interface configurable for three-wire operation
- Software-configurable gain settings, signal polarity, and update rate selection
- Self-calibration and system calibration options to eliminate gain and offset errors
- Low power dissipation with CMOS construction
- Power-down mode to reduce standby power consumption
Applications
The AD7715ARUZ-5REEL7 is ideal for various low-frequency measurement applications, including those in smart systems, microcontroller-based systems, and DSP-based systems. It is particularly suited for applications requiring precise signal conditioning and conversion, such as industrial automation, medical devices, and data acquisition systems.
Q & A
- What is the resolution of the AD7715ARUZ-5REEL7? The AD7715ARUZ-5REEL7 has a resolution of 16 bits.
- What conversion technique does the AD7715 use? The AD7715 uses a sigma-delta (Σ-Δ) conversion technique.
- What are the supply voltage options for the AD7715? The AD7715 can operate from a single supply voltage of either 3 V or 5 V.
- What is the maximum supply current of the AD7715 at 3 V supplies? The maximum supply current is 450 µA.
- What are the input signal ranges supported by the AD7715? The AD7715 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 does the AD7715ARUZ-5REEL7 come in? The AD7715ARUZ-5REEL7 comes in a 16-Lead TSSOP package.
- What is the operating temperature range of the AD7715? The operating temperature range is -40°C to +85°C.
- How much power does the AD7715 consume in power-down mode? The AD7715 consumes 50 μW typical in power-down mode.
- Does the AD7715 support software configuration? Yes, the AD7715 allows software configuration of gain settings, signal polarity, and update rate selection.
- What calibration options are available for the AD7715? The AD7715 offers self-calibration and system calibration options to eliminate gain and offset errors.
