Overview
The AD7708BRZ is a 16-bit, low voltage, low power Sigma Delta Analog-to-Digital Converter (ADC) produced by Analog Devices Inc. This component is part of the AD7708 series, which includes complete analog front-ends designed for low frequency measurement applications. The AD7708 is a 16-bit version of the AD7718, offering a high degree of precision and flexibility in signal conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Number of Channels | 8/10 channels (pseudo-differential), 4/5 channels (fully-differential) |
| Input Signal Range | 20 mV to 2.56 V |
| Supply Voltage | 3 V or 5 V |
| Power Dissipation (at 3 V) | 3.84 mW (typical) |
| Package Type | 28-Lead SOIC (Wide) |
| Operating Temperature Range | -40°C to 85°C |
| Output Data Rate | Software programmable |
Key Features
- High precision 16-bit Sigma Delta ADC for low frequency measurements.
- Configurable as 4/5 fully-differential or 8/10 pseudo-differential input channels.
- Direct conversion of signals from transducers without the need for additional signal conditioning.
- Operates from a single 3 V or 5 V supply with low power dissipation.
- Pin-for-pin compatibility with the 24-bit AD7718, allowing for easy upgrade without hardware modifications.
- On-board PLL generates the required internal operating frequency from a 32 kHz crystal.
- Software programmable output data rate.
Applications
The AD7708BRZ is suitable for a variety of low frequency measurement applications, including:
- Industrial process control and monitoring.
- Medical devices requiring precise signal conversion.
- Automotive sensors and monitoring systems.
- Environmental monitoring and data acquisition systems.
Q & A
- What is the resolution of the AD7708BRZ?
The AD7708BRZ has a resolution of 16 bits.
- How many channels does the AD7708BRZ support?
The AD7708BRZ supports 8/10 pseudo-differential channels or 4/5 fully-differential channels.
- What is the input signal range for the AD7708BRZ?
The input signal range is from 20 mV to 2.56 V.
- What are the supply voltage options for the AD7708BRZ?
The AD7708BRZ can operate from either a 3 V or 5 V supply.
- What is the typical power dissipation of the AD7708BRZ at 3 V supply?
The typical power dissipation is 3.84 mW.
- What type of package does the AD7708BRZ come in?
The AD7708BRZ comes in a 28-Lead SOIC (Wide) package.
- Is the AD7708BRZ compatible with other models for easy upgrade?
Yes, it is pin-for-pin compatible with the 24-bit AD7718, allowing for easy upgrade without hardware modifications.
- How is the output data rate of the AD7708BRZ controlled?
The output data rate is software programmable.
- What is the operating temperature range of the AD7708BRZ?
The operating temperature range is -40°C to 85°C.
- Does the AD7708BRZ require additional signal conditioning for transducer signals?
No, it can convert signals directly from transducers without additional signal conditioning.
