Overview
The AD7799BRUZ, produced by Analog Devices Inc., is a 3-channel, low noise, low power, 24-bit Sigma-Delta Analog-to-Digital Converter (ADC) with an on-chip instrumentation amplifier. This device is designed for high precision measurement applications, making it suitable for interfacing signals of small amplitude directly to the ADC. The AD7799 features a low noise performance, with an rms noise of 27 nV at a gain setting of 64 and an update rate of 4.17 Hz.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 24-bit |
| Number of Channels | 3 |
| Interface Type | 3-Wire, Microwire, SPI |
| Sampling Rate | Up to 470 S/s |
| Input Type | Differential |
| Architecture | Sigma-Delta |
| Analog Supply Voltage | 2.7 V to 5.25 V |
| Digital Supply Voltage | 2.7 V to 5.25 V |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +105°C |
| Package/Case | 16-Lead TSSOP |
| Typical Current Consumption | 380 μA |
Key Features
- Low noise performance with an rms noise of 27 nV at a gain setting of 64 and an update rate of 4.17 Hz.
- On-chip, low noise instrumentation amplifier for direct interfacing of small amplitude signals.
- Software-programmable output data rate from 4.17 Hz to 470 Hz.
- On-chip features include a low-side power switch, reference detect, programmable digital output pins, and burnout currents.
- Internal clock oscillator for timing.
- Low power consumption with a typical current of 380 μA.
Applications
The AD7799 is suitable for high precision measurement applications, including but not limited to:
- Industrial process control and monitoring.
- Medical devices requiring high accuracy and low noise.
- Aerospace and defense applications where precision is critical.
- Test and measurement equipment.
- Automotive systems requiring precise analog-to-digital conversion.
Q & A
- What is the resolution of the AD7799 ADC?
The AD7799 has a resolution of 24 bits.
- How many channels does the AD7799 support?
The AD7799 supports 3 differential analog input channels.
- What is the interface type of the AD7799?
The AD7799 uses 3-Wire, Microwire, and SPI interfaces.
- What is the maximum sampling rate of the AD7799?
The maximum sampling rate of the AD7799 is up to 470 S/s.
- What is the typical current consumption of the AD7799?
The AD7799 typically consumes 380 μA of current.
- What is the operating temperature range of the AD7799?
The AD7799 operates within a temperature range of -40°C to +105°C.
- What package type is the AD7799 available in?
The AD7799 is housed in a 16-lead TSSOP package.
- Does the AD7799 have an on-chip instrumentation amplifier?
Yes, the AD7799 includes an on-chip, low noise instrumentation amplifier.
- Can the output data rate of the AD7799 be programmed?
Yes, the output data rate of the AD7799 is software-programmable from 4.17 Hz to 470 Hz.
- What are some common applications of the AD7799?
The AD7799 is commonly used in industrial process control, medical devices, aerospace and defense, test and measurement equipment, and automotive systems.
