AD7193BRUZ

Analog To Digital Converters (ADC) Overview

The AD7193BRUZ is a 24-bit sigma-delta analog-to-digital converter (ADC) in a 28-lead TSSOP package. It integrates a low-noise programmable gain amplifier (PGA) with gains from 1 to 128, supporting four differential or eight pseudo-differential inputs. The device features an internal 4.92 MHz clock and supports external clocks or crystals. Output data rates range from 4.7 Hz to 4.8 kHz. Power supplies are AVDD (3 V to 5.25 V) and DVDD (2.7 V to 5.25 V), with typical current consumption of 4.65 mA. It includes a channel sequencer, temperature sensor, and general-purpose digital outputs.

Analog To Digital Converters (ADC) Feature Summary

• 24-bit resolution with up to 22 noise-free bits at gain = 1
• Ultra-low noise performance: 11 nV RMS at 4.7 Hz with gain = 128
• Integrated PGA with programmable gain settings from 1 to 128
• Flexible digital filter with fast settling option and simultaneous 50 Hz/60 Hz rejection

Analog To Digital Converters (ADC) Applications

• PLC/DCS analog input modules
• Strain gage transducers
• Pressure measurement systems
• Temperature measurement applications
• Weigh scales

Analog To Digital Converters (ADC) Procurement Notes

Verify the component matches the 28-lead TSSOP package specification. Confirm that the operating voltage requirements for AVDD (3 V to 5.25 V) and DVDD (2.7 V to 5.25 V) align with the system design. Ensure compatibility with the required serial interface protocol (SPI, QSPI, MICROWIRE, or DSP). Check for RoHS compliance status if environmental regulations apply to the manufacturing process.

Analog To Digital Converters (ADC) Selection Notes

Select this ADC for high-precision, low-frequency measurement applications requiring low noise and high resolution. Consider the internal PGA when interfacing with small amplitude signals to avoid external amplification. Evaluate the output data rate against the required bandwidth, noting that lower rates provide higher resolution. Verify that the available clock source (internal or external) meets the timing requirements for the selected filter configuration.

Analog To Digital Converters (ADC) Part Context

The AD7193 is part of Analog Devices' family of complete analog front ends designed for high-precision measurement. It serves as a direct replacement for previous generation devices in industrial and scientific instrumentation where low noise and high accuracy are critical. The BRUZ suffix indicates the specific 28-lead TSSOP package variant.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the verified documentation. When selecting alternatives, ensure comparable 24-bit resolution, similar noise performance, and compatible pinout or interface protocols.

Analog To Digital Converters (ADC) FAQ

What is the maximum programmable gain for the AD7193?

The AD7193 supports a programmable gain ranging from 1 to 128.

Can the AD7193 operate with both internal and external clocks?

Yes, the device can use its internal 4.92 MHz clock or accept an external clock signal or crystal connected to the MCLK1 and MCLK2 pins.

How many analog input channels does the AD7193 support?

The AD7193 supports four fully differential input channels or eight pseudo-differential input channels.