This document is about ROHM's LSH1208-BA50A Contact Image Sensor Heads. This product has 3 times faster scanning speed, 3 analog outputs, signal amplifier is built into the sensor IC for increased immunity to external noise.
The LSH1208-BA50A is a color contact image sensor head designed for high‑speed scanners and wide‑format document scanners. It provides three analog outputs for fast reading and includes an integrated signal amplifier for noise immunity.
Key features include a proprietary prism for uniform output, a ceramic substrate for dimensional accuracy, and an IC with built‑in ESD protection. The sheet lists electrical characteristics, pin assignments, timing diagrams for multiple DPI modes, and peripheral circuit examples.
| Effective scanning width | 216 mm |
|---|---|
| Primary scan dot density | 1200 dpi |
| Total dot number | 10368 dots |
| Power supply voltage (Vop) | 3.3 V |
| Reference voltage (VREF) | 0.8 V |
| Scanning speed | 1.0×3 ms/line |
| Clock frequency | 4 MHz |
| Maximum dynamic range | 0.5 V |
| Minimum dynamic range | 0.25 V |
| Dark output | 0.1 V |
| Operating temperature | -5 to 45 °C |
The scanning speed is 1.0×3 ms per line.
It requires a 3.3 V power supply (Vop).
The device provides three analog outputs.
The sensor supports up to 1200 dpi dot density.