AD7835APZ-REEL

Digital To Analog Converters Overview

The AD7835APZ-REEL is a quad 14-bit digital-to-analog converter (DAC) from Analog Devices, utilizing LC2MOS technology. It integrates four independent DAC channels within a single monolithic chip, featuring parallel data loading capabilities with support for both 14-bit straight binary and double-byte (8-bit/6-bit) formats. The device provides voltage outputs with a maximum span of 14 V, typically ranging from ±8.192 V. Key functional features include a power-on reset function that holds outputs near the device sense ground potential during supply stabilization, an asynchronous clear input for user-defined voltage setting, and simultaneous or individual channel updates via the LDAC signal.

Digital To Analog Converters Feature Summary

• Quad 14-bit DAC architecture with parallel 8-bit or 14-bit data loading interfaces
• Voltage output range up to ±8.192 V with a maximum span of 14 V
• Asynchronous CLR input allows forcing all outputs to the Device Sense Ground (DSG) potential
• Power-on reset circuitry maintains outputs within ±2 V of DSG until supplies stabilize

Digital To Analog Converters Applications

• Process control systems requiring multi-channel analog output
• Automatic test equipment for precise signal generation
• General-purpose instrumentation involving high-resolution voltage control

Digital To Analog Converters Procurement Notes

Verify the package type corresponds to the 'PZ' suffix, which indicates a 44-lead MQFP package, as the AD7835 family includes other options like PLCC. Confirm the 'REEL' designation matches the required tape-and-reel quantity for manufacturing integration. Ensure the temperature grade ('A') aligns with the operational environment requirements of -40°C to +85°C.

Digital To Analog Converters Selection Notes

Select the AD7835 over the AD7834 when a parallel interface is preferred over serial loading to simplify microprocessor interfacing without additional shift registers. Consider the 44-lead MQFP package constraints regarding PCB real estate and thermal dissipation. Verify that the system can provide the necessary dual analog supplies (typically ±15 V or ±12 V) and a separate 5 V logic supply for proper operation.

Digital To Analog Converters Part Context

The AD7835 is part of the AD7834/AD7835 family of LC2MOS quad DACs manufactured by Analog Devices. While the AD7834 utilizes a serial input interface, the AD7835 variant is designed for parallel data entry, offering flexibility in system bus architectures. Both devices share identical core DAC performance characteristics, including 14-bit resolution and monotonicity, but differ primarily in their digital input configuration and pinout assignments.

Digital To Analog Converters Replacement Considerations

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