A1388 and A1389 Miniature Factory Programmable Linears

Allegro's A1388/A1389 operates with 4.5 V to 5.5 V supply voltage

Image of Allegro MicroSystems' A1388 and A1389 Miniature Factory Programmable LinearsAllegro'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.

Features Benefits
  • 5.0 V supply operation
  • Sensitivity temperature coefficient (TC) and QVO/QD temperature coefficient programmed at Allegro for improved accuracy
  • High-speed chopping scheme minimizes quiescent voltage output (QVO) drift across temperature
  • Wide ambient temperature range: -40°C to +150°C
  • Operates with 4.5 V to 5.5 V supply voltage
  • Factory-programmed offset, sensitivity, and polarity
  • Temperature-stable QVO and sensitivity
  • Output voltage clamps provide short circuit diagnostic capabilities
  • Immune to mechanical stress
  • Enhanced EMC performance for stringent automotive applications

A1388 and A1389

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
A1389LLHLT-9-T datasheet linkSENSOR LINEAR ANALOG SOT23WA1389LLHLT-9-TSENSOR LINEAR ANALOG SOT23W4976 - Immediate
A1389LLHLT-9-T product page link
A1388LLHLT-2-T datasheet linkSENSOR LINEAR ANALOG SOT23WA1388LLHLT-2-TSENSOR LINEAR ANALOG SOT23W4563 - Immediate
A1388LLHLT-2-T product page link
A1389LLHLT-RP9-T datasheet linkSENSOR LINEAR ANALOG SOT23WA1389LLHLT-RP9-TSENSOR LINEAR ANALOG SOT23W5052 - Immediate
A1389LLHLT-RP9-T product page link
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Published: 2013-07-12