TLV1822DR

Comparators Overview

The TLV1822DR is a dual-channel analog comparator from the Texas Instruments TLV182x family, housed in an 8-pin SOIC package. It features rail-to-rail inputs and open-drain outputs capable of pulling up to 40V independent of the supply voltage. The device operates on a wide supply range of 2.4V to 40V with a typical quiescent current of 5µA per channel. Key electrical specifications include a maximum input offset voltage of 3mV at 25°C, a typical propagation delay of 420ns, and an input bias current of 150fA.

Comparators Feature Summary

• Rail-to-rail input capability extending from (V-) - 0.2V to (V+) + 0.2V
• Open-drain output stage allowing pull-up to 40V independent of supply voltage
• Integrated Power-On Reset (POR) ensures known output state during startup
• Low input bias current of 150fA for minimal signal loading

Comparators Applications

• Appliances
• Factory automation and control
• Motor drives
• Infotainment and cluster systems

Comparators Procurement Notes

Verify the specific ordering suffix 'D' corresponds to the SOIC-8 package when sourcing. Confirm that the open-drain output configuration meets system requirements, as this variant lacks the push-pull drive capability found in the TLV181x series. Ensure external pull-up resistors are selected to maintain desired rise times while limiting leakage currents within specified limits.

Comparators Selection Notes

Select the TLV1822DR over the TLV1812DR when level shifting or logical ORing of multiple outputs is required due to its open-drain architecture. This part is suitable for applications requiring high-voltage output swings independent of the low-voltage comparator supply. Consider the TLV1812 if direct driving of capacitive loads like MOSFET gates without external pull-ups is necessary.

Comparators Part Context

The TLV1822DR belongs to the TLV18xx family of micro-power comparators designed for automotive and industrial environments. It shares the same core performance metrics as other members of the series, including the quad-channel TLV1824 and single-channel TLV1821 variants. The family is characterized by excellent speed-to-power ratios and robust ESD protection.

Comparators Replacement Considerations

TLV1822PW (TSSOP-8), TLV1822DGK (VSSOP-8), TLV1822DDF (SOT-23-8). Verify pinout compatibility and thermal characteristics when substituting packages.