Allen-Bradley 1769-IF8 8-Channel 24V DC Input Module

The Allen-Bradley 1769-IF8 is an eight-channel analog input module for CompactLogix backplanes that accepts eight differential or eight single-ended inputs. It supports voltage ranges of ±10 V (bipolar), 0–10 V, 0–5 V, and 1–5 V, and current ranges of 0–20 mA or 4–20 mA, with 16‑bit resolution for unipolar inputs and 15‑bit plus sign for bipolar inputs, implemented with a delta-sigma converter. Electrical specs include a 220 kΩ input impedance for voltage, 250 Ω for current, a common-mode range of ±10 V DC, and common-mode rejection >60 dB at 50/60 Hz with the 10 Hz filter; isolation is 500 V AC or 710 V DC for 1 minute (IEC Class II reinforced insulation), with 30 V AC/DC working voltage group-to-bus. Backplane power draw is 120 mA at 5 V and 70 mA at 24 V; dimensions are 118 × 52.5 × 87 mm, weight approximately 450 g, and slot width 1.5, with mounting support for DIN rail or panel; the module is designed to operate on a backplane that powers up to eight I/O modules.