Overview
The AD7701BRZ is a high-performance 16-bit sigma-delta analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is renowned for its excellent linearity and accuracy, ensured by a self-calibration scheme that can be initiated at any time to adjust zero and full scale, as well as to null system offset and gain errors in the input channel.
The AD7701BRZ is packaged in a 20-lead SOIC (wide body) and operates with a supply voltage range of 4.5V to 5.5V. It features a flexible serial port with asynchronous and synchronous modes, making it compatible with UARTs, shift registers, and the serial ports of industry-standard microcontrollers.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7701BRZ |
| Package | 20-Lead SOIC (Wide) |
| Number of Bits | 16 |
| Sampling Rate | Up to 16 ksps |
| Polarity | Bipolar, Unipolar |
| Interface | SPI, Serial |
| Differential Nonlinearity | 0.5 LSB |
| Min Dual Supply Voltage | 4.5 V |
| Min Supply Voltage | 4.5 V |
| Max Dual Supply Voltage | 5.5 V |
| Power Consumption (Idle) | 10 µW (Power Down Mode) |
Key Features
- High Accuracy and Linearity: Ensured by self-calibration of zero and full scale, which can be initiated at any time to adjust for system offset and gain errors.
- Flexible Serial Interface: Compatible with UARTs and synchronous modes suitable for interfacing to shift registers or the serial ports of industry-standard microcontrollers.
- Low Power Consumption: CMOS construction ensures low power dissipation, with an idle power consumption of only 10 µW in power down mode.
- Sigma-Delta Conversion Technique: The analog input is continually sampled by an analog modulator, and the modulator output is processed by an on-chip digital filter with a six-pole Gaussian response.
Applications
- Industrial Automation: Suitable for precision measurement and control systems due to its high accuracy and reliability.
- Medical Devices: Used in medical equipment requiring precise analog-to-digital conversion, such as patient monitoring systems.
- Aerospace and Defense: Employed in various aerospace and defense applications where high precision and low power consumption are critical.
- Test and Measurement Equipment: Ideal for use in multimeters, oscilloscopes, and other precision measurement instruments.
Q & A
- What is the resolution of the AD7701BRZ ADC?
The AD7701BRZ is a 16-bit analog-to-digital converter.
- What is the sampling rate of the AD7701BRZ?
The sampling rate of the AD7701BRZ can be up to 16 ksps.
- What type of interface does the AD7701BRZ support?
The AD7701BRZ supports SPI and serial interfaces, including asynchronous and synchronous modes.
- How does the AD7701BRZ ensure high accuracy?
The AD7701BRZ ensures high accuracy through self-calibration of zero and full scale, which can be initiated at any time to adjust for system offset and gain errors.
- What is the power consumption of the AD7701BRZ in power down mode?
The power consumption of the AD7701BRZ in power down mode is only 10 µW).
- What is the package type of the AD7701BRZ?
The AD7701BRZ is packaged in a 20-lead SOIC (wide body)).
- What is the supply voltage range for the AD7701BRZ?
The supply voltage range for the AD7701BRZ is from 4.5V to 5.5V).
- Can the AD7701BRZ be used in bipolar and unipolar configurations?
Yes, the AD7701BRZ can be used in both bipolar and unipolar configurations).
- What is the differential nonlinearity of the AD7701BRZ?
The differential nonlinearity of the AD7701BRZ is 0.5 LSB).
- Is the AD7701BRZ suitable for low power applications?
Yes, the AD7701BRZ is suitable for low power applications due to its CMOS construction and low idle power consumption).
