Overview: The AEAT-84AD is an optoelectronic-mechanical unit designed to function as an absolute multi-turn encoder with a capacity of up to 30 bits, suitable for extended temperature ranges. It integrates an IR-LED circuit board, a phototransistor circuit board, and gear wheels.

Specifications: The encoder is available in 12-bit and 14-bit solid shaft versions, supporting up to 16384 (14 bits) and 4096 (12 bits) revolutions. It operates within temperatures of -40°C to +125°C and supports speeds up to 12,000 rpm. The mechanical coupling is achieved through a 14 teeth gear pinion.

Features: The AEAT-84AD offers optical, absolute multi-turn assembly with a maximum diameter of 55 mm and a typical height of 12.2 mm. It does not require a battery or capacitor for revolution counting during power failures, ensuring immediate position detection upon power-up.

Applications: This encoder is a major component for multi-turn housed encoders and is cost-effective for direct integration into OEM systems, particularly in linear positioning systems.

Block Diagram and Data Processing: The encoder uses a multiplexing system to generate a 14-bit Gray code from 3-bit codes produced by gear wheels. The data is processed through a V-bit multiplexer, and synchronization with a single-turn absolute encoder is achieved electronically.

Electrical Characteristics: The encoder operates with a DC supply voltage of 5.0 to 5.5 V and supports a maximum encoder shaft speed of 12,000 rpm. It features a multiplex read delay of 64 µs and requires specific input and output voltage levels for operation.

Mechanical and Electrical Connections: The encoder is mechanically fixed using M3 threads and coupled via a gear pinion. Electrical connections are made through a 2x4 pin strip, and alignment is facilitated by a plastic plug that locks the zero position.

Ordering Information: The AEAT-84AD is available in two versions: AEAT-84AD-LBSC0 (12-bit) and AEAT-84AD-LBSF0 (14-bit), both supporting temperatures from -40 to +125°C.