622Mbps SONET/SDH laser diode driver — parametric fit
The MAX3667ECJ-T is a single-channel laser diode driver from Analog Devices, designed for SDH/SONET optical transceivers at 622Mbps. It delivers a bias current up to 90 mA and a modulation current of 60 mA, covering the drive requirements for most FP and DFB lasers in OC-12/STM-4 links.
Where is it in the cycle?
RoHS compliance is not claimed for this variant (RoHS non-compliant). If your BOM requires RoHS, confirm the suffix — the -T indicates tape-and-reel packaging, not the environmental grade.
Package and thermal interface
Housed in a 32-LQFP (7x7 mm body, 0.8 mm pitch), the MAX3667ECJ-T mounts on standard surface-mount footprints. The supplier device package is 32-TQFP (7x7) — same mechanical outline, different supplier designation.