規格
| 屬性 | 價值 |
| Package | Tube |
| ProductStatus | Active |
| NumberofBits | 24 |
| SamplingRate(PerSecond) | 470 |
| NumberofInputs | 6 |
| InputType | Differential |
| DataInterface | SPI, DSP |
| Configuration | MUX-ADC |
| NumberofA/DConverters | 1 |
| Architecture | Sigma-Delta |
| ReferenceType | External, Internal |
| Voltage-SupplyAnalog | 2.7V ~ 5.25V |
| Voltage-SupplyDigital | 2.7V ~ 5.25V |
| Features | PGA, Temperature Sensor |
| OperatingTemperature | -40°C ~ 125°C |
| Package/Case | 24-TSSOP (0.173, 4.40mm Width) |
| SupplierDevicePackage | 24-TSSOP |
概述
Description
The AD7794CRUZ is a low-power, 24-bit sigma-delta (Σ-Δ) ADC from Analog Devices, designed for precision measurement in industrial and instrumentation applications.
### Key Features:
- Resolution: 24-bit, ensuring high accuracy.
- Channels: 3 differential or 6 pseudo-differential inputs.
- Noise: Ultra-low noise (40 nV RMS at 4.17 Hz).
- Power: Low current consumption (350 µA typical).
- Interface: SPI-compatible serial interface.
- On-Chip Features: PGA (gain: 1–128), internal reference, and temperature sensor.
### Applications:
- Weigh scales
- Pressure sensors
- Temperature monitoring
- Medical instrumentation
### Package:
- TSSOP-24 (AD7794CRUZ)
The AD7794CRUZ is ideal for battery-powered or high-precision systems requiring low noise and high resolution.
### Key Features:
- Resolution: 24-bit, ensuring high accuracy.
- Channels: 3 differential or 6 pseudo-differential inputs.
- Noise: Ultra-low noise (40 nV RMS at 4.17 Hz).
- Power: Low current consumption (350 µA typical).
- Interface: SPI-compatible serial interface.
- On-Chip Features: PGA (gain: 1–128), internal reference, and temperature sensor.
### Applications:
- Weigh scales
- Pressure sensors
- Temperature monitoring
- Medical instrumentation
### Package:
- TSSOP-24 (AD7794CRUZ)
The AD7794CRUZ is ideal for battery-powered or high-precision systems requiring low noise and high resolution.
Equivalent
The AD7794CRUZ is a low-power, 24-bit sigma-delta ADC. Equivalent alternatives include:
- ADS124S08 (TI): Similar resolution, integrated PGA.
- LTC2440 (Analog Devices): High precision, low noise.
- MCP3551 (Microchip): Lower cost, 22-bit resolution.
- MAX11270 (Maxim): Ultra-low power, 24-bit.
These offer comparable performance in precision measurement applications. Check datasheets for exact specs and pin compatibility.
- ADS124S08 (TI): Similar resolution, integrated PGA.
- LTC2440 (Analog Devices): High precision, low noise.
- MCP3551 (Microchip): Lower cost, 22-bit resolution.
- MAX11270 (Maxim): Ultra-low power, 24-bit.
These offer comparable performance in precision measurement applications. Check datasheets for exact specs and pin compatibility.
Features
The AD7794CRUZ is a low-power, 24-bit sigma-delta ADC with the following key features:
- Resolution: 24-bit, ensuring high-precision measurements.
- Channels: 3 differential or 5 pseudo-differential analog inputs.
- Noise Performance: Ultra-low noise (40 nV RMS at 4.17 Hz).
- Power Consumption: Low power (400 µA typical, 1 µA in power-down mode).
- Interface: SPI-compatible serial interface.
- Internal Features: On-chip PGA (gain: 1–128), reference, and clock.
- Output Rate: Programmable from 4.17 Hz to 470 Hz.
- Supply Voltage: 2.7 V to 5.25 V, suitable for battery-powered applications.
- Package: 24-lead TSSOP (AD7794CRUZ).
Ideal for precision sensor measurements in industrial, medical, and instrumentation systems.
- Resolution: 24-bit, ensuring high-precision measurements.
- Channels: 3 differential or 5 pseudo-differential analog inputs.
- Noise Performance: Ultra-low noise (40 nV RMS at 4.17 Hz).
- Power Consumption: Low power (400 µA typical, 1 µA in power-down mode).
- Interface: SPI-compatible serial interface.
- Internal Features: On-chip PGA (gain: 1–128), reference, and clock.
- Output Rate: Programmable from 4.17 Hz to 470 Hz.
- Supply Voltage: 2.7 V to 5.25 V, suitable for battery-powered applications.
- Package: 24-lead TSSOP (AD7794CRUZ).
Ideal for precision sensor measurements in industrial, medical, and instrumentation systems.
Pinout
The AD7794CRUZ is a 24-bit sigma-delta ADC with 16 pins (TSSOP package). Key functions include:
- Analog Inputs: 3 differential/6 pseudo-differential channels (AIN1± to AIN3±).
- Reference Input: REFIN1±/REFIN2± for external voltage reference.
- Power Supply: AVDD (2.7–5.25V) and DVDD (2.7–5.25V).
- Digital Interface: SPI-compatible (SCLK, DIN, DOUT, CS).
- Control Pins: RESET (hardware reset), MCLK IN/OUT (clock input/output).
- Output: RDY (conversion status).
It integrates a PGA (gain: 1–128), internal reference, and is optimized for low-power precision measurements.
- Analog Inputs: 3 differential/6 pseudo-differential channels (AIN1± to AIN3±).
- Reference Input: REFIN1±/REFIN2± for external voltage reference.
- Power Supply: AVDD (2.7–5.25V) and DVDD (2.7–5.25V).
- Digital Interface: SPI-compatible (SCLK, DIN, DOUT, CS).
- Control Pins: RESET (hardware reset), MCLK IN/OUT (clock input/output).
- Output: RDY (conversion status).
It integrates a PGA (gain: 1–128), internal reference, and is optimized for low-power precision measurements.
Application
The AD7794CRUZ is a low-power, 24-bit sigma-delta ADC designed for precision measurement applications. Key areas include:
- Industrial Process Control: Pressure, temperature, and flow monitoring.
- Medical Equipment: Patient monitoring, portable medical devices.
- Weigh Scales & Load Cells: High-precision weight measurement.
- Gas Detection: Analyzers and environmental sensors.
- Battery-Powered Systems: Low energy consumption suits portable instruments.
Its high resolution, low noise, and integrated features (PGA, reference) make it ideal for sensitive analog signal conditioning.
- Industrial Process Control: Pressure, temperature, and flow monitoring.
- Medical Equipment: Patient monitoring, portable medical devices.
- Weigh Scales & Load Cells: High-precision weight measurement.
- Gas Detection: Analyzers and environmental sensors.
- Battery-Powered Systems: Low energy consumption suits portable instruments.
Its high resolution, low noise, and integrated features (PGA, reference) make it ideal for sensitive analog signal conditioning.
Package
The AD7794CRUZ comes in a TSSOP-24 package. This surface-mount package has 24 leads, a compact footprint, and is suitable for space-constrained applications. It offers reliable performance for precision analog-to-digital converters.
