AD7294BSUZRL

ADCs/DACs - Special Purpose Overview

The AD7294BSUZRL is a 12-bit monitor and control system integrating multichannel ADCs, DACs, temperature sensors, and current sense amplifiers. It features four 12-bit DACs with 8 μs settling time and ±10 mA drive capability, supporting up to 15 V output. The SAR ADC provides 3 μs conversion time across four uncommitted analog inputs, two high-side current sense channels, and two external temperature sensor inputs. An internal 2.5 V reference drives both converters. The device operates on a 5 V to 59.4 V supply range for current sensing and uses a 2-wire I²C interface. It is housed in a 64-lead TQFP package (suffix SUZ) and functions within a −40°C to +105°C temperature range.

ADCs/DACs - Special Purpose Feature Summary

• Four 12-bit monotonic DACs with 8 μs settling time and ±10 mA source/sink capability
• 12-bit SAR ADC with 3 μs conversion time and 22.22 kSPS throughput at 400 kHz I²C clock
• Integrated high-side current sense amplifiers supporting up to 59.4 V common-mode voltage
• Dual external diode temperature sensor inputs with ±2°C accuracy over −55°C to +150°C range

ADCs/DACs - Special Purpose Applications

• Cellular base station power amplifier bias current control
• GSM, EDGE, UMTS, CDMA, TD-SCDMA, W-CDMA, and WiMAX RF transmission systems
• 12 V, 24 V, and 48 V automotive applications
• Industrial controls requiring precise monitoring and regulation

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix RL indicates reel packaging when sourcing this component. Confirm the SUZ suffix corresponds to the 64-lead TQFP package variant. Ensure compatibility with the specified 4.5 V to 5.5 V logic supply requirements for the I²C interface. Check availability status as distribution may vary by region.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring integrated monitoring of current, voltage, and temperature in a single chip. The 59.4 V compliance on current sense inputs allows direct high-side measurement without additional isolation. The 12-bit resolution on both ADC and DAC channels supports precise bias control for power transistors. Consider the 64-lead TQFP package for board layout constraints if the 56-lead LFCSP option is not suitable.

ADCs/DACs - Special Purpose Part Context

The AD7294 belongs to Analog Devices' family of integrated monitor and control solutions designed for power amplifier management. It combines data conversion, sensing, and alarm functionality to simplify system design in telecommunications and industrial sectors. The BSUZRL designation specifies the B grade temperature range, SUZ TQFP package, and reel shipping format.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.