Overview
The AD7792BRUZ is a 3-channel, low noise, low power analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for the measurement of wide dynamic range, low frequency signals, making it suitable for applications such as pressure transducers, weigh scales, and temperature measurement. The AD7792BRUZ features a Σ-Δ modulator, a buffer, reference, in-amp, and an on-chip digital filter, allowing for high precision and low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 3 |
| Resolution | 16-bit or 24-bit (depending on the model) |
| Operating Voltage Range | 2.7 V to 5.25 V (AVDD and DVDD) |
| Operating Temperature Range | –40°C to +105°C |
| Typical Current Consumption | 130 μA @ AVDD = 3 V, 165 μA @ AVDD = 5 V (buffered mode) |
| Reference Voltage | Internal 1.17 V or external reference |
| Input Type | Differential inputs (buffered or unbuffered) |
| Update Rate | User-programmable, with notches at 50 Hz and 60 Hz for simultaneous rejection |
| Package Type | 16-Lead TSSOP |
Key Features
- Low noise and low power consumption, making it suitable for battery-powered applications.
- Three differential input channels that can be configured as buffered or unbuffered.
- Internal 1.17 V reference or external reference option.
- User-programmable output rate with simultaneous 50 Hz and 60 Hz rejection.
- On-chip digital filter for noise rejection.
- Serial interface for communication (CS, DIN, SCLK, and DOUT/RDY).
- Continuous conversion mode with automatic data output on the DOUT line.
Applications
The AD7792BRUZ is ideal for various precision measurement applications, including:
- Pressure transducers
- Weigh scales
- Temperature measurement
- Medical devices requiring high accuracy and low noise
- Industrial automation and control systems
Q & A
- What is the resolution of the AD7792BRUZ?
The AD7792BRUZ has a resolution of 16-bit or 24-bit, depending on the specific model. - What is the operating voltage range of the AD7792BRUZ?
The operating voltage range is 2.7 V to 5.25 V for both AVDD and DVDD. - What is the operating temperature range of the AD7792BRUZ?
The operating temperature range is –40°C to +105°C. - Can the AD7792BRUZ use an external reference voltage?
Yes, the AD7792BRUZ can use either the internal 1.17 V reference or an external reference voltage. - How many input channels does the AD7792BRUZ have?
The AD7792BRUZ has three differential input channels. - What is the typical current consumption of the AD7792BRUZ?
The typical current consumption is 130 μA @ AVDD = 3 V and 165 μA @ AVDD = 5 V in buffered mode. - Can the output rate of the AD7792BRUZ be programmed?
Yes, the output rate is user-programmable, with notches at 50 Hz and 60 Hz for simultaneous rejection. - What type of package does the AD7792BRUZ come in?
The AD7792BRUZ comes in a 16-Lead TSSOP package. - How does the AD7792BRUZ communicate with other devices?
The AD7792BRUZ communicates via a serial interface using CS, DIN, SCLK, and DOUT/RDY signals. - What is the purpose of the on-chip digital filter in the AD7792BRUZ?
The on-chip digital filter is used for noise rejection, particularly for rejecting 50 Hz and 60 Hz noise.
