Overview
The AD7193BRUZ from Analog Devices Inc. is a high-precision, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC) designed for low noise and high accuracy measurement applications. This device serves as a complete analog front end, featuring an on-chip low noise gain stage that allows signals of small amplitude to interface directly with the ADC. It is available in a 28-lead TSSOP package and operates with a power supply ranging from 3 V to 5.25 V, making it versatile for various applications.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Bits | 24 | ||
| Sampling Rate | 4.7 Hz to 4.8 kHz | Dependent on filter settings | |
| Number of Inputs | 4 differential or 8 pseudo differential | ||
| Package | 28-Lead TSSOP | 4.4mm x 9.7mm | |
| Supply Voltage | 3 V to 5.25 V | V | |
| Current Consumption | 4.65 mA | mA | |
| Interface | SPI | ||
| Operating Temperature | −40°C to +105°C | °C |
Key Features
- Low Noise Performance: The AD7193 features a low noise, 24-bit sigma-delta ADC, making it suitable for high precision measurement applications.
- On-Chip Gain Stage: The device includes an on-chip low noise gain stage, allowing signals of small amplitude to interface directly with the ADC.
- Flexible Input Configuration: It can be configured to have four differential inputs or eight pseudo differential inputs.
- Channel Sequencer: The on-chip channel sequencer enables several channels to be converted sequentially, simplifying communication with the part.
- Flexible Digital Filter: The device includes a very flexible digital filter with options such as fast settling and zero latency.
- Clock Options: The AD7193 can use an on-chip 4.92 MHz clock or an external clock or crystal as the clock source.
Applications
- PLC/DCS Analog Input Modules: Suitable for use in programmable logic controllers and distributed control systems.
- Data Acquisition: Ideal for data acquisition systems requiring high precision and low noise.
- Strain Gage Transducers: Used in applications involving strain gage measurements.
- Pressure Measurement: Applicable in pressure measurement systems.
- Temperature Measurement: Used in temperature measurement applications.
- Flow Measurement: Suitable for flow measurement systems.
- Weigh Scales: Used in weigh scale applications.
- Chromatography: Applied in chromatography systems.
- Medical and Scientific Instrumentation: Used in various medical and scientific instruments.
Q & A
- What is the resolution of the AD7193BRUZ?
The AD7193BRUZ has a 24-bit resolution.
- What are the possible input configurations for the AD7193BRUZ?
The device can be configured to have four differential inputs or eight pseudo differential inputs.
- What is the operating voltage range of the AD7193BRUZ?
The device operates with a power supply ranging from 3 V to 5.25 V.
- What is the current consumption of the AD7193BRUZ?
The current consumption is 4.65 mA.
- What interface does the AD7193BRUZ use?
The device uses an SPI interface.
- What are the clock options for the AD7193BRUZ?
The device can use an on-chip 4.92 MHz clock or an external clock or crystal as the clock source.
- What is the temperature range for the AD7193BRUZ?
The operating temperature range is −40°C to +105°C.
- What types of applications is the AD7193BRUZ suitable for?
The device is suitable for various applications including PLC/DCS analog input modules, data acquisition, strain gage transducers, pressure measurement, temperature measurement, flow measurement, weigh scales, chromatography, and medical and scientific instrumentation.
- Does the AD7193BRUZ have any special features for noise reduction?
Yes, the device features a low noise, 24-bit sigma-delta ADC and an on-chip low noise gain stage, which helps in reducing noise and improving precision.
- How does the channel sequencer in the AD7193BRUZ work?
The on-chip channel sequencer allows several channels to be enabled simultaneously, and the AD7193 sequentially converts on each enabled channel, simplifying communication with the part.
