AD7794 (5)
The AD7794 is available from Analog Devices at Xecor. Designed for high precision measurement applications, the AD7794 offers low noise, low power consumption, and a 24-bit Σ-Δ ADC with six differential inputs. Available in a 24-pin TSSOP package, it is ideal for temperature measurement, pressure measurement, weigh scales, strain gage transducers, and gas analysis. Whether used in industrial, medical, or environmental monitoring systems, this series ensures high accuracy, low noise, and efficient power usage for demanding applications. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the AD7794 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| AD7794BRUZ | 24-pin TSSOP tube packaging for easy integration into your electronic designs | TSSOP-24 | 6,409 | |
| AD7794BRU | Sigma, Serial, TSSOP, Tube, Resolution, Rate, Packaged, Pin | TSSOP-24 | 7,374 | |
| AD7794CRUZ | 5-channel Analog to Digital Converter with 24-bit resolution | TSSOP-24 | 7,526 | |
| AD7794BRUZ-REEL | 6-Channel Single ADC Delta-Sigma 470sps 24-bit Serial 24-Pin TSSOP T/R | TSSOP-24 | 5,382 | |
| AD7794CRUZ-REEL | 6-Channel Single ADC Delta-Sigma 470sps 24-bit Serial 24-Pin TSSOP T/R | TSSOP-24 | 7,646 |
Key Featrues
High Resolution and Low Noise: The AD7794 offers a 24-bit resolution with RMS noise as low as 40 nV at 4.17 Hz, enabling precise measurement of small signals. This high resolution and low noise are critical for applications like weigh scales and strain gage transducers, where accurate detection of minute changes is essential.
Low Power Consumption: With a typical current draw of 400 µA and a maximum power-down current of 1 µA, the AD7794 is highly energy-efficient. This feature makes it suitable for battery-powered or portable devices, extending operational life and reducing energy costs.
Programmable Gain Instrumentation Amplifier: The on-chip low noise instrumentation amplifier with programmable gain allows direct interfacing of small amplitude signals to the ADC. This enhances signal integrity and reduces the need for external amplification, simplifying design and improving overall system efficiency.
Flexible Update Rate: The update rate can be programmed from 4.17 Hz to 470 Hz, providing versatility for various applications. Lower rates are ideal for low-power, high-precision measurements, while higher rates are suitable for faster data acquisition in dynamic environments.
Integrated Reference and Temperature Sensor: The AD7794 includes a band gap reference with a typical drift of 4 ppm/°C and a temperature sensor. These integrated features reduce the need for external components, saving board space and cost while ensuring stable and accurate measurements across varying temperatures.
Low Power Consumption: With a typical current draw of 400 µA and a maximum power-down current of 1 µA, the AD7794 is highly energy-efficient. This feature makes it suitable for battery-powered or portable devices, extending operational life and reducing energy costs.
Programmable Gain Instrumentation Amplifier: The on-chip low noise instrumentation amplifier with programmable gain allows direct interfacing of small amplitude signals to the ADC. This enhances signal integrity and reduces the need for external amplification, simplifying design and improving overall system efficiency.
Flexible Update Rate: The update rate can be programmed from 4.17 Hz to 470 Hz, providing versatility for various applications. Lower rates are ideal for low-power, high-precision measurements, while higher rates are suitable for faster data acquisition in dynamic environments.
Integrated Reference and Temperature Sensor: The AD7794 includes a band gap reference with a typical drift of 4 ppm/°C and a temperature sensor. These integrated features reduce the need for external components, saving board space and cost while ensuring stable and accurate measurements across varying temperatures.
Applications
Precision Temperature Measurement: The AD7794 is ideal for directly digitizing signals from temperature sensors, such as thermocouples or RTDs. Its low noise, 24-bit Σ-Δ ADC and on-chip instrumentation amplifier ensure high accuracy and resolution, making it suitable for precision temperature monitoring in industrial and scientific applications.
High-Accuracy Weigh Scales: The AD7794 excels in digitizing signals from load cells and strain gauges in weigh scale systems. With its programmable gain amplifier and low noise performance, it provides precise measurements even for small amplitude signals, ensuring reliable and accurate weight measurements in commercial and industrial scales.
Strain Gauge Transducer Interface: The AD7794 is well-suited for interfacing with strain gauge transducers in structural health monitoring and material testing. Its differential input capability and high-resolution ADC allow for accurate detection of minute strain changes, making it ideal for applications requiring high sensitivity and precision.
Gas Analysis Systems: The AD7794 is perfect for digitizing signals from gas sensors in environmental monitoring and gas analysis systems. Its low power consumption and high-resolution ADC enable precise measurement of gas concentrations, while its on-chip reference and instrumentation amplifier simplify system design for portable and fixed gas analyzers.
High-Accuracy Weigh Scales: The AD7794 excels in digitizing signals from load cells and strain gauges in weigh scale systems. With its programmable gain amplifier and low noise performance, it provides precise measurements even for small amplitude signals, ensuring reliable and accurate weight measurements in commercial and industrial scales.
Strain Gauge Transducer Interface: The AD7794 is well-suited for interfacing with strain gauge transducers in structural health monitoring and material testing. Its differential input capability and high-resolution ADC allow for accurate detection of minute strain changes, making it ideal for applications requiring high sensitivity and precision.
Gas Analysis Systems: The AD7794 is perfect for digitizing signals from gas sensors in environmental monitoring and gas analysis systems. Its low power consumption and high-resolution ADC enable precise measurement of gas concentrations, while its on-chip reference and instrumentation amplifier simplify system design for portable and fixed gas analyzers.
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