Overview
The AD7701BRZ is a 16-bit Sigma-Delta Analog-to-Digital Converter (ADC) produced by Analog Devices Inc. This device utilizes a sigma-delta conversion technique, where the analog input is continually sampled by an analog modulator, and the mean output duty cycle is proportional to the input signal. The modulator output is processed by an on-chip digital filter with a six-pole Gaussian response, updating the output data register with 16-bit binary words at word rates up to 4 kHz. The ADC features excellent linearity and endpoint accuracy ensured by self-calibration of zero and full scale, which can be initiated at any time. It also includes a power-down mode to reduce idle power consumption to 10 µW.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 16 bits |
| Conversion Technique | Sigma-Delta |
| Input Channels | 1 |
| Output Word Rate | Up to 4 kHz |
| Package Type | 20-Lead SOIC (Wide) |
| Operating Temperature Range | -40°C to 85°C |
| Power Consumption (Idle) | 10 µW (power-down mode) |
| Supply Voltage | 5V |
| Interface | Flexible serial port (asynchronous and synchronous modes) |
Key Features
- High-resolution 16-bit Sigma-Delta ADC with excellent linearity and endpoint accuracy.
- Self-calibration of zero and full scale, and system offset and gain errors.
- On-chip digital filter with a six-pole Gaussian response.
- Flexible serial port with asynchronous and synchronous modes compatible with UARTs, shift registers, and microcontrollers.
- Low power consumption with CMOS construction and a power-down mode reducing idle power to 10 µW.
- Crystal-controlled on-chip clock oscillator or external master clock input.
Applications
The AD7701BRZ is suitable for a variety of applications requiring high precision and low power consumption, such as:
- Industrial control systems.
- Medical devices.
- Automotive systems.
- Test and measurement equipment.
- Smart sensors and IoT devices.
Q & A
- What is the resolution of the AD7701BRZ ADC?
The AD7701BRZ has a resolution of 16 bits. - What conversion technique does the AD7701BRZ use?
The AD7701BRZ uses a Sigma-Delta conversion technique. - How many input channels does the AD7701BRZ have?
The AD7701BRZ has one input channel. - What is the maximum output word rate of the AD7701BRZ?
The maximum output word rate is up to 4 kHz. - What type of package does the AD7701BRZ come in?
The AD7701BRZ comes in a 20-Lead SOIC (Wide) package. - What is the operating temperature range of the AD7701BRZ?
The operating temperature range is -40°C to 85°C. - How much power does the AD7701BRZ consume in power-down mode?
The AD7701BRZ consumes 10 µW in power-down mode. - What is the supply voltage for the AD7701BRZ?
The supply voltage is 5V. - What types of interfaces does the AD7701BRZ support?
The AD7701BRZ supports a flexible serial port with asynchronous and synchronous modes. - Can the AD7701BRZ be self-calibrated?
Yes, the AD7701BRZ can be self-calibrated for zero and full scale, and it can also null system offset and gain errors.
