Overview
The AD7190WBRUZ-RL, manufactured by Analog Devices Inc., is a high-precision analog-to-digital converter (ADC) designed for various measurement applications. This 24-bit sigma-delta (∑-Δ) ADC is part of a complete analog front end, featuring a low noise gain stage that allows direct interfacing of small amplitude signals. The device supports both differential and pseudo-differential input configurations and includes an on-chip channel sequencer for sequential conversion of multiple channels. It operates with a 5 V analog power supply and a digital power supply ranging from 2.7 V to 5.25 V, making it versatile for different system requirements.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Bits | 24 | - | - |
| Sampling Rate | 4.8 kSPS | - | - |
| Number of Inputs | 2, 4 | - | Differential, Pseudo-Differential |
| Input Type | Differential, Pseudo-Differential | - | - |
| Data Interface | SPI, DSP | - | - |
| Architecture | Sigma-Delta | - | - |
| Reference Type | External, Internal | - | - |
| Voltage - Supply, Analog | 5 V | V | - |
| Voltage - Supply, Digital | 2.7 V to 5.25 V | V | - |
| Operating Temperature | -40°C to 105°C | °C | - |
| Package | 24-TSSOP (0.173", 4.40mm Width) | - | - |
| Power Consumption | 6 mA (typical) | mA | Depends on gain and buffer settings |
Key Features
- Low Noise Performance: The AD7190 features a low noise gain stage, enabling the direct connection of small amplitude signals to the ADC.
- Flexible Input Configurations: Supports both differential and pseudo-differential input configurations.
- On-Chip Channel Sequencer: Allows sequential conversion of multiple channels, simplifying communication with the device.
- Programmable Output Data Rate: Output data rate can be varied from 4.7 Hz to 4.8 kHz.
- Digital Filter Options: Includes two digital filter options affecting noise, settling time, and 50 Hz/60 Hz rejection.
- Zero Latency Feature: Ensures all conversions are settled, which is crucial for applications requiring precise timing.
- SPI and DSP Compatible Interface: Supports both SPI and DSP interfaces for versatile system integration.
Applications
- Weigh Scales: High precision measurement requirements make the AD7190 suitable for weigh scale applications.
- Strain Gauge Transducers: Ideal for strain gauge measurements due to its low noise and high precision.
- Pressure Measurement: Used in pressure measurement applications requiring accurate and reliable data.
- Temperature Measurement: Suitable for temperature measurement applications with high precision needs.
- Chromatography: Used in chromatography for precise data acquisition.
- PLC/DCS Analog Input Modules: Integrated into PLC and DCS systems for high precision analog input modules.
- Data Acquisition: General data acquisition applications where high precision and low noise are critical.
- Medical and Scientific Instrumentation: Used in medical and scientific instruments requiring high accuracy and reliability.
Q & A
- What is the resolution of the AD7190WBRUZ-RL ADC?
The AD7190WBRUZ-RL has a 24-bit resolution.
- What are the supported input configurations for the AD7190WBRUZ-RL?
The device supports both differential and pseudo-differential input configurations.
- What is the sampling rate of the AD7190WBRUZ-RL?
The sampling rate is up to 4.8 kSPS.
- What are the power supply requirements for the AD7190WBRUZ-RL?
The device requires a 5 V analog power supply and a digital power supply ranging from 2.7 V to 5.25 V.
- What is the operating temperature range of the AD7190WBRUZ-RL?
The operating temperature range is from -40°C to 105°C.
- What package type is the AD7190WBRUZ-RL available in?
The device is housed in a 24-lead TSSOP package.
- Does the AD7190WBRUZ-RL support SPI and DSP interfaces?
Yes, it supports both SPI and DSP interfaces.
- What is the power consumption of the AD7190WBRUZ-RL?
The typical power consumption is 6 mA, depending on the gain and buffer settings.
- What are some common applications of the AD7190WBRUZ-RL?
Common applications include weigh scales, strain gauge transducers, pressure measurement, temperature measurement, chromatography, PLC/DCS analog input modules, data acquisition, and medical and scientific instrumentation.
- Does the AD7190WBRUZ-RL have any special features for noise reduction?
Yes, it includes digital filter options and a zero latency feature to enhance noise reduction and ensure precise timing.
