Overview
The AD7703CRZ, produced by Analog Devices Inc., is a high-resolution, 20-bit analog-to-digital converter (ADC) that utilizes a sigma-delta (Σ-Δ) conversion technique. This component is designed for high accuracy and reliability, making it suitable for various precision measurement applications. The AD7703CRZ features an on-chip digital filter with a six-pole Gaussian response and supports self-calibration to eliminate zero and gain errors. It operates within a temperature range of -40°C to +85°C and is packaged in a 20-lead Standard Small Outline Package (SOIC_W).
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 20 bits |
| Accuracy | 0.0003% |
| Sampling Rate | Up to 4 kHz |
| Filter Type | Six-pole Gaussian digital low-pass filter |
| Interface | Flexible serial port with asynchronous and synchronous modes |
| Power Consumption | Low operating power, ultralow power standby mode (10 µW) |
| Temperature Range | -40°C to +85°C |
| Package | 20-lead Standard Small Outline Package (SOIC_W) |
Key Features
- High-resolution 20-bit ADC with no missing codes, ensuring true 20-bit dynamic range.
- On-chip self-calibration to eliminate zero and gain errors, and to null system offset and gain errors.
- Flexible serial interface compatible with UARTs, shift registers, and microcontrollers.
- Low power consumption and ultralow power standby mode, making it ideal for battery-powered and loop-powered applications.
- Excellent linearity and endpoint accuracy.
Applications
- Precision measurement instruments.
- Loop-powered remote sensing applications.
- Battery-powered portable instruments.
- Industrial control systems requiring high accuracy and reliability.
- Medical devices and diagnostic equipment.
Q & A
- What is the resolution of the AD7703CRZ? The AD7703CRZ has a resolution of 20 bits.
- What is the accuracy of the AD7703CRZ? The accuracy is 0.0003%.
- What is the maximum sampling rate of the AD7703CRZ? The maximum sampling rate is up to 4 kHz.
- What type of filter does the AD7703CRZ use? It uses a six-pole Gaussian digital low-pass filter.
- How does the AD7703CRZ interface with other components? It has a flexible serial port with asynchronous and synchronous modes.
- What is the power consumption of the AD7703CRZ in standby mode? The power consumption in standby mode is 10 µW.
- What is the operating temperature range of the AD7703CRZ? The operating temperature range is -40°C to +85°C.
- In what package is the AD7703CRZ available? It is available in a 20-lead Standard Small Outline Package (SOIC_W).
- Does the AD7703CRZ support self-calibration? Yes, it supports self-calibration to eliminate zero and gain errors.
- Is the AD7703CRZ suitable for battery-powered applications? Yes, it is suitable due to its low power consumption and ultralow power standby mode.
