A1318 and A1319 3.3 V Miniature Factory Programmab

By Allegro MicroSystems, LLC 73

A1318 and A1319 3.3 V Miniature Factory Programmab

Allegro's A1318 and A1319 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 A1318 and A1319 devices build on the flexibility and economic competitiveness of the A1381 / 2 / 3 / 4 devices; however, they are targeted towards 3.3 V supply-rail applications.

The A1318 and A1319 architecturally have the ability to support a magnetic input sensitivity range of 1.32 mV/G to 2.64 mV/G, and 2.64 mV/G to 5.94 mV/G, respectively. However, the A1318 / 19 devices initially being released to market are factory programmed to specific magnetic input sensitivity levels, via unique CASs for specific customer programming requirements.

  • 3.3 V supply operation
  • QVO temperature coefficient programmed at Allegro for improved accuracy
  • High speed chopping scheme minimizes QVO drift across operating temperature range
  • Temperature-stable quiescent voltage output and sensitivity
  • Undervoltage lockout (UVLO)
  • Wide ambient temperature range: -40°C to +150°C
  • Enhanced EMC performance for stringent automotive applications
  • High bandwidth, low-noise analog output
  • Precise recoverability after temperature cycling
  • Output voltage clamps provide short circuit diagnostic capabilities
  • Immune to mechanical stress
  • Miniature package options