LAM 853‑001983‑011

Technical Specifications

• Input Channel Quantity: 8 analog‑input channels
• Supported Signal Type: 0‑10 V voltage, 4‑20 mA current
• Resolution: 12‑bit analog‑to‑digital conversion
• Power Supply: 24 V DC
• Communication Interface: Internal equipment backplane bus Function Features
• Multi‑channel simultaneous sampling of analog‑sensor signals
• Hardware‑level signal filtering for suppression of plasma‑process‑induced noise
• Over‑range and over‑voltage protection per individual channel
• On‑board self‑diagnosis for channel‑fault detection
• Transmits converted digital‑measurement data to host‑controller over backplane bus Application Scenarios: Lam Research semiconductor etch and deposition‑tools; real‑time acquisition of pressure‑sensor, temperature‑sensor, gas‑flow‑monitor‑sensor signals inside fabrication‑facility equipment cabinets. Performance Parameters: Stable analog‑sampling accuracy in high‑electromagnetic‑interference clean‑room environment; channel‑independent protection circuit; meets SEMI‑standard electronic‑component reliability requirement. Material Composition: Multi‑layer FR‑4 printed‑circuit‑board; multi‑channel analog‑to‑digital converter chips; signal‑filter passive‑components; channel‑protection semiconductor‑devices; metal mounting‑bracket. Structural Characteristics: Plug‑in card‑module construction; backplane‑edge‑connector interface; front‑panel mounting‑hardware; status‑LED indicator for power‑on and fault‑alarm. Working Principle: Analog voltage or current signals from field sensors feed into each channel; signal‑conditioning circuit adjusts input‑signal range; analog‑to‑digital converter converts analog‑quantity into digital‑numerical‑value; digital‑data is transmitted via backplane bus to main equipment controller for process‑logic calculation and monitoring. Installation Requirements: Power‑off equipment chassis before card‑insertion; insert into specified chassis‑slot; fasten front‑panel mounting‑screws; ensure full‑reliable contact between edge‑connector and backplane‑socket. Usage Notes: Take static‑electric‑discharge‑prevention measures during handling; do not apply input‑signal exceeding rated‑range to channels; avoid PCB‑surface contamination by process‑gas‑by‑product particles; match firmware version with equipment host‑software.