Overview
The AD7190BRUZ-REEL, produced by Analog Devices Inc., is a high-precision, low-noise analog-to-digital converter (ADC) designed for various high-accuracy measurement applications. This 24-bit sigma-delta (Σ-Δ) ADC features an on-chip low noise gain stage, enabling direct interface with signals of small amplitude. The device supports multiple input configurations, including two differential inputs or four pseudo-differential inputs, and includes an on-chip channel sequencer for sequential conversion of enabled channels. This simplifies communication and enhances the overall efficiency of the system.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 24-bit | ||
| Output Data Rate | 4.7 Hz to 4.8 kHz | Programmable | |
| Analog Power Supply | 5 V | V | |
| Digital Power Supply | 2.7 V to 5.25 V | V | |
| Current Consumption | 6 mA | mA | Typical |
| Package Type | 24-lead TSSOP | ||
| Operating Temperature Range | –40°C to +105°C | °C | |
| Clock Source | On-chip 4.92 MHz clock or external clock/crystal |
Key Features
- Low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC)
- On-chip low noise gain stage for direct interface with small amplitude signals
- Configurable for two differential inputs or four pseudo-differential inputs
- On-chip channel sequencer for sequential conversion of enabled channels
- Programmable output data rate from 4.7 Hz to 4.8 kHz
- Two digital filter options affecting noise, resolution, settling time, and 50 Hz/60 Hz rejection
- Zero latency feature for applications requiring settled conversions
Applications
- Weigh scales
- Strain gauge transducers
- Pressure measurement
- Temperature measurement
- Chromatography
- PLC/DCS analog input modules
- Data acquisition
- Medical and scientific instrumentation
Q & A
- What is the resolution of the AD7190BRUZ-REEL?
The AD7190BRUZ-REEL has a 24-bit resolution. - What are the possible output data rates for the AD7190BRUZ-REEL?
The output data rate can be varied from 4.7 Hz to 4.8 kHz. - What are the power supply requirements for the AD7190BRUZ-REEL?
The device operates with a 5 V analog power supply and a digital power supply ranging from 2.7 V to 5.25 V. - How much current does the AD7190BRUZ-REEL typically consume?
The device typically consumes 6 mA of current. - What type of package does the AD7190BRUZ-REEL come in?
The AD7190BRUZ-REEL is housed in a 24-lead TSSOP package. - What are the operating temperature limits for the AD7190BRUZ-REEL?
The operating temperature range is from –40°C to +105°C. - Can the AD7190BRUZ-REEL use an external clock source?
Yes, the device can use either the on-chip 4.92 MHz clock or an external clock/crystal as the clock source. - What are some of the key applications for the AD7190BRUZ-REEL?
The device is used in applications such as weigh scales, strain gauge transducers, pressure measurement, temperature measurement, chromatography, PLC/DCS analog input modules, data acquisition, and medical and scientific instrumentation. - Does the AD7190BRUZ-REEL have any special features for noise reduction?
Yes, the device includes two digital filter options that affect the rms noise/noise-free resolution, settling time, and 50 Hz/60 Hz rejection. - Is there an evaluation board available for the AD7190BRUZ-REEL?
Yes, the EVAL-AD7190ASDZ evaluation kit is available for evaluating the performance of the AD7190.
