ACT8506 Datasheet | Aeroflex Circuit Technology

FEATURES  48 channels provided by six 16-channel multiplexers  Radiation performance - Total dose: - SEU: 300 krads(Si), Dose rate = 50 - 300 rads(Si)/s Immune up to 120 Me V-cm2/mg - SEL: Immune by process design  Full military temperature range  Low power consumption < 90m W  One address bus (A0-3) and three enable lines afford flexible organization  Fast access time 1500ns typical  Break-Before-Make switching  Same Form / Fit / Function as ACT8502 minus channel input transorbs  Designed for aerospace and high reliability space applications  Packaging - Hermetic ceramic - 96 leads, 1.32"Sq x 0.20"Ht quad flat pack - Typical Weight 15 grams  Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G. GENERAL DESCRIPTION Aeroflex’s ACT8506 is a radiation tolerant, 48 channel multiplexer MCM (multi-chip module). The ACT8506 has been specifically designed to meet exposure to radiation environments. The multiplexer is available in a 96 lead High Temperature Co-Fired Ceramic (HTCC) Quad Flatpack (CQFP). It is guaranteed operational from -55°C to +125°C. Available screened in accordance with MIL-PRF-38534, the ACT8506 is ideal for demanding military and space applications. ORGANIZATION AND APPLICATION The ACT8506 consists of six 16 channel multiplexers arranged as shown in the Block Diagram. The ACT8506 design is inherently radiation tolerant. The ACT8506 consists of forty-eight (48) channels addressable by bus A0~A3 in three 16 channel blocks, each block enabled separately. Each block connects the addressed channel to two outputs, "Output" and "Current". This technique enables selecting and reading a remote resistive sensor without the MUX resistance being part of the measurement. For grounded sensors, this is done by passing current to the sensor by means of the "Current" pin and reading the resultant voltage (proportional to the sensor resistance) at the "Output" pin. SCD8506 Rev D SCD8506 Rev D...