TLV1822DDFR

Comparators Overview

The TLV1822DDFR 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 being pulled up to 40V independent of the supply voltage. The device operates on a wide supply range of 2.4V to 40V with a quiescent current of 5µA per channel. Key electrical specifications include a typical propagation delay of 420ns, input offset voltage of 500µV, and input bias current of 150fA. It includes a Power-On Reset (POR) feature and supports temperatures from -40°C to +125°C.

Comparators Feature Summary

• Rail-to-rail input capability extending beyond supply rails for flexible signal interfacing
• Open-drain output stage allowing pull-up to any voltage up to 40V independent of supply
• Integrated Power-On Reset (POR) ensures known output state during power transitions
• Micro-power operation with low quiescent current suitable for battery-powered systems

Comparators Applications

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

Comparators Procurement Notes

Verify the specific ordering suffix matches the required package type, as the TLV1822 family is available in multiple packages including SOIC, TSSOP, VSSOP, WSON, and SOT-23. Confirm that the open-drain output configuration aligns with system requirements, as the push-pull variant corresponds to the TLV181x series. Ensure external pull-up resistor values are selected to meet rise-time and power dissipation targets within the 40V limit.

Comparators Selection Notes

Select the TLV1822DDFR when an open-drain output is required for logic level translation or wired-OR configurations. This part is appropriate for designs needing high-voltage tolerance on the output side while maintaining low power consumption. Compare against the TLV1812 if a push-pull output capable of sourcing current is preferred instead of an open-drain sink-only topology.

Comparators Part Context

The TLV1822DDFR belongs to the TLV181x/TLV182x family of 40V rail-to-rail input comparators. This family provides options for both push-pull (TLV181x) and open-drain (TLV182x) outputs. The DD FR suffix indicates an 8-pin SOIC package with tape-and-reel packaging. These devices are designed for applications requiring high voltage tolerance and low power consumption.

Comparators Replacement Considerations

The TLV1812 offers a similar form factor but with a push-pull output stage instead of open-drain. Other members of the TLV18xx family share the same core electrical characteristics but differ in channel count or package type.