AD7339BS-REEL

ADCs/DACs - Special Purpose Overview

The AD7339BS-REEL is an obsolete mixed-signal integrated circuit from Analog Devices, featuring a single 8-bit ADC and four 8-bit DACs within one package. It operates on a single +5 V supply with an internal 2.5 V bandgap reference. The ADC provides up to 2.048 MSPS conversion rate with ±1 LSB DNL/INL. The device includes two parallel voltage-output DACs (up to 2.304 MHz update) and two serial DACs (up to 25.6 kHz update). Individual power-down modes are available for the ADC, parallel DACs, and serial DACs to minimize active current consumption.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 8-bit ADC with 2.048 MSPS sampling rate and ±1 LSB linearity
• Two 8-bit parallel DACs with 2.304 MHz update rate and bipolar output swing
• Two 8-bit serial DACs with 25.6 kHz maximum update rate via SPI-compatible interface
• On-chip 2.5 V bandgap reference with individual section power-down control

ADCs/DACs - Special Purpose Applications

• Video signal processing systems requiring simultaneous digitization and reconstruction
• Industrial control loops utilizing serial DACs for calibration or setpoint adjustment
• Test and measurement equipment needing compact mixed-signal data acquisition
• Motor drive applications leveraging parallel DACs for analog waveform generation

ADCs/DACs - Special Purpose Procurement Notes

This component is officially designated as obsolete by Analog Devices. Verification of availability requires checking distributor inventories for remaining stock or surplus channels. No new production units are manufactured. Ensure the specific B version suffix matches the required -40°C to +85°C industrial temperature range before procurement.

ADCs/DACs - Special Purpose Selection Notes

Select this part only if legacy compatibility with existing 52-lead PQFP designs is mandatory. Verify that the 8-bit resolution meets system accuracy requirements, as modern alternatives often offer higher precision. Confirm that the single +5 V supply constraint aligns with the target power architecture. Check pinout compatibility if replacing older revisions.

ADCs/DACs - Special Purpose Part Context

The AD7339 belongs to Analog Devices' composite converter family, designed to reduce board space in video and industrial applications. The 'B' suffix indicates the industrial temperature grade (-40°C to +85°C), while 'SZ' typically denotes lead-free packaging. The '-REEL' suffix specifies tape-and-reel packaging for automated assembly.

ADCs/DACs - Special Purpose Replacement Considerations

No direct public substitute is listed. Consider the AD7338 (single DAC variant) or AD7337 (dual DAC variant) for simplified architectures. For modern replacements, evaluate the AD9200 series for ADC performance or AD54xx series for DAC functionality, noting significant pinout and interface differences.