Allegro Distributor

A1318 and A1319 3.3 V Miniature Factory Programmable Linears


Factory one-time programmable (OTP-ROM) linears for automotive, industrial, and consumer product markets


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 to 2.64 mV/G, and 2.64 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.
Allegro's A1318 and A1319

Features Benefits
  • 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
  • Miniature package options
  • High bandwidth, low-noise analog output
  • Precise recoverability after temperature cycling
  • Output voltage clamps provide short circuit diagnostic capabilities
  • Immune to mechanical stress
  • Enhanced EMC performance for stringent automotive applications

Digi-Key P/N Manufacturer P/N Description  
620-1509-1-ND A1318LLHLT-1-T IC SENSR HALL EFFECT 3.3V SOT23W Datasheet
620-1508-1-ND A1318LLHLT-2-T IC SENSR HALL EFFECT 3.3V SOT23W
620-1507-1-ND A1319LLHLT-5-T IC SENSR HALL EFFECT 3.3V SOT23W
Available in Tape & Reel (-2-ND), Cut Tape (-1-ND), and custom Digi-Reel® (-6-ND)