Allegro's A1388 and A1389 are factory one-time-programmable (OTP-ROM) linears that eliminate the need for customers to optimize/program the devices for their finished sensor assemblies. The A1388/89 builds on the flexibility and economic competitiveness of the A1381/2/3/4 devices.

The A1388 and A1389 architecturally have the ability to support a magnetic input sensitivity range of 2 to 4 mV/G, and 4 to 9 mV/G, respectively. However, the A1388/89 devices initially being released to market are factory programmed to specific magnetic input sensitivity levels via unique CASs for specific customer programming requirements.