Overview
The AD7701ARS is a highly versatile and reliable 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component utilizes a sigma-delta conversion technique, ensuring high accuracy and efficiency in digital signal processing. It is particularly suited for industrial control systems, remote sensing applications, and battery-powered portable instruments due to its low power consumption and ultralow power standby mode.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Series | AD7701 |
| Package/Case | SSOP-28 |
| Mounting Style | SMD/SMT |
| Resolution | 16 bit |
| Number of Channels | 1 Channel |
| Interface Type | Serial |
| Sampling Rate | 4 kS/s |
| Input Type | Single-Ended |
| Architecture | Sigma-Delta |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +85°C |
| DNL - Differential Nonlinearity | +/- 0.5 LSB |
| Gain Error | +/- 2 LSB |
| INL - Integral Nonlinearity | +/- 0.003 % FSR |
| Input Voltage | 2.5 V, +/- 2.5 V |
| Operating Supply Voltage | 5 V |
| Power Consumption | 25 mW |
| Reference Type | External |
| Sample and Hold | Yes |
Key Features
- High Accuracy and Resolution: The AD7701ARS offers 16-bit resolution with outstanding 0.0015% accuracy and no missing codes, ensuring a true 16-bit dynamic range.
- Self-Calibration: The ADC features on-chip self-calibration that removes zero and gain errors, and can also include external circuits in the calibration loop to remove system offsets and gain errors.
- Flexible Serial Interface: The component has a flexible synchronous/asynchronous serial interface compatible with UARTs and the serial ports of industry-standard microcontrollers.
- Low Power Consumption: It operates with low power consumption and has an ultralow power standby mode, making it ideal for loop-powered remote sensing applications and battery-powered portable instruments.
- Wide Input Range: The ADC supports an analog input range of 0 V to +2.5 V or +/- 2.5 V.
Applications
- Industrial Control Systems: The AD7701ARS is well-suited for industrial control systems due to its high accuracy and reliability.
- Remote Sensing Applications: Its low power consumption makes it ideal for loop-powered remote sensing applications.
- Battery-Powered Portable Instruments: The component is also suitable for battery-powered portable instruments due to its ultralow power standby mode.
- Data Acquisition Systems: It can be used in various data acquisition systems requiring high precision and low power consumption.
Q & A
- Q: What is the resolution of the AD7701ARS?
A: The AD7701ARS has a resolution of 16 bits.
- Q: What is the sampling rate of the AD7701ARS?
A: The sampling rate of the AD7701ARS is up to 4 kS/s.
- Q: What type of interface does the AD7701ARS use?
A: The AD7701ARS uses a flexible serial interface that is compatible with UARTs and the serial ports of industry-standard microcontrollers.
- Q: What is the operating temperature range of the AD7701ARS?
A: The operating temperature range of the AD7701ARS is from -40°C to +85°C.
- Q: What is the power consumption of the AD7701ARS?
A: The power consumption of the AD7701ARS is typically 25 mW, with an ultralow power standby mode of 10 µW.
- Q: Does the AD7701ARS support self-calibration?
A: Yes, the AD7701ARS features on-chip self-calibration that removes zero and gain errors and can include external circuits in the calibration loop.
- Q: What is the input voltage range of the AD7701ARS?
A: The input voltage range of the AD7701ARS is 0 V to +2.5 V or +/- 2.5 V.
- Q: Is the AD7701ARS suitable for battery-powered devices?
A: Yes, the AD7701ARS is suitable for battery-powered devices due to its low power consumption and ultralow power standby mode.
- Q: What is the package type of the AD7701ARS?
A: The AD7701ARS comes in a SSOP-28 package.
- Q: What warranty is offered for the AD7701ARS?
A: Some distributors offer a 1-year warranty for the AD7701ARS, covering defects in materials and workmanship under normal use.
