AD9857ASTZ

Product Overview

AD9857ASTZ from Analog Devices Inc. is a 200 MSPS 14-bit quadrature digital upconverter used in RF, microwave or high-speed receiver/transmitter signal-chain designs. This description focuses on practical electrical parameters, interface requirements and sourcing relevance for engineering and procurement teams.

The exact ordering suffix should be checked for package style, reel or tray format, temperature grade and board-level compatibility before replacing an existing design.

Key Features

• Manufacturer: Analog Devices Inc.
• Part Number: AD9857ASTZ
• Device Type: 200 MSPS 14-bit quadrature digital upconverter
• Functional Role: complete quadrature digital upconverter, universal I/Q modulator, agile upconverter, single-tone DDS or interpolating DAC
• Clock / Conversion Rate: 200 MSPS internal clock rate class
• DAC Resolution: 14-bit high speed DAC path
• DSP Integration: DDS, clock multiplier, digital filters and upconversion logic integrated on one IC
• I/Q Function: supports communications I/Q modulation and agile upconversion applications
• Signal Output: analog output generated by the integrated high speed DAC path
• System Use: digital transmit or RF/IF generation path before analog filtering and upconversion
• Package / Case: TQFP/LQFP package family, ASTZ ordering suffix
• Design Notes: Confirm the exact suffix, package drawing, temperature grade and RF reference design before substitution or production approval.

Applications

Agile RF/IF transmitters, software-defined radios, exciter cards and communication signal-generation equipment.

Replacement support for AD9857-based transmit chains that need matching package, clocking and digital interface behavior.

Quality & Sourcing

Antrex Electronics can support sourcing for AD9857ASTZ through available stock checks, BOM consolidation and alternative-lot review. For RF and microwave ICs, package markings, moisture sensitivity, date code and original labeling should be checked before shipment.

For shortage coverage, repair builds or production support, Antrex Electronics can coordinate visual inspection, package verification and third-party testing when required. This helps buyers reduce risk when sourcing discontinued, legacy or hard-to-find RF miscellaneous ICs and modules.