Integrated Device Technology, Inc. introduced the industry's first 53Gb/s and 112Gb/s multi-rate Trans-impedance Amplifiers for optical transceivers, active optical cables and On-Board Optics applications. The single-channel and quad-channel TIA chips with the IDT Clock Data Recovery (CDR), Laser Drivers for Directly Modulated Lasers (DMLs) and Electro-Absorption Modulated Lasers (EMLs) provide a total solution to customers to achieve high performance, low power consumption and low costs. Datacenters continue to drive the high speed Ethernet optics with multiple data rates into advanced PAM4 modulations, thus leading to various PMD form factors. One way to save costs is to find a way to make a component that could meet multi-rate requirements. IDT's newly released PAM4 TIA, with a patented adaptive design, can meet both 53Gb/s and 112Gb/s bandwidth requirements. The multi-rate function provides design flexibility to module designers, reduces development cycles and leads a lean manufacturing operation. Key attributes and benefits to 200G/400G Datacenter applications include: Low power consumption for PAM4 linear receivers and COBO optics in QSFP-DD and OSFP modules, for example, as low as < 150mW/channel; Excellent flat frequency responses and low group delay with wide bandwidth (up to 43GHz) and AGC, which optimizes PAM4 systems for wide dynamic PMD links; Very low input referred noise density as low as 10pA/vHz; Compact die size enabling small optical assembly and On-Board Optics assembly for better port density; -40°C to 95°C temperature operation range for 5G wireless front-haul applications; and I2C interface providing on-chip multiple functions, such as control, monitor and alarms.