TL3116IDG4

Comparators Overview

The TL3116IDG4 is an ultra-fast, low-power precision comparator manufactured by Texas Instruments. It operates from a single 5-V supply or dual ±5-V supplies, featuring complementary outputs and input common-mode voltage that includes the negative rail for ground sensing. The device offers extremely tight offset voltage and high gain for precision applications. It requires only 12.7 mA typical positive supply current to achieve a propagation delay of 10 ns. Available in SOIC (D) and TSSOP (PW) packages, it functions as a pin-for-pin replacement for the LT1116.

Comparators Feature Summary

• Ultra-fast operation with 10 ns typical propagation delay
• Low positive supply current consumption of 12.7 mA typical
• Complementary outputs with latch capability via LATCH ENABLE terminal
• Input common-mode voltage extends to the negative rail

Comparators Applications

• Ground sensing applications requiring negative rail input coverage
• Interfaces directly to TTL logic circuits
• Precision comparison tasks demanding tight offset voltage specifications
• High-speed switching applications needing fast response times
• Replacement for LT1116 comparators in existing designs

Comparators Procurement Notes

Verify the specific package variant required, as the TL3116IDG4 designation corresponds to the SOIC (D) package. Confirm availability status through official Texas Instruments channels, as some variants within the family may be obsolete while others remain active production. Ensure the operating temperature range of -40°C to 85°C aligns with system requirements.

Comparators Selection Notes

Select this component when high-speed response is critical alongside low power consumption. The inclusion of a LATCH ENABLE terminal allows for output state retention, which is useful in specific digital interfacing scenarios. Consider the complementary output structure if both true and inverted signals are needed without external inversion circuitry.

Comparators Part Context

The TL3116 series represents Texas Instruments' solution for bridging analog signal comparison with digital logic interfaces. Designed to outperform legacy parts like the LT1116 in speed while maintaining lower power draw, it serves as a direct drop-in upgrade for engineers seeking improved performance metrics in compact analog front-end designs.

Comparators Replacement Considerations

The datasheet explicitly identifies the TL3116 as a functional replacement for the LT1116 comparator. When substituting, verify that the target application does not require features absent in the TL3116, such as open-collector outputs found in other comparator families.

Comparators FAQ

Does the input common-mode voltage range include the negative rail?

Yes, the input common-mode voltage range extends to the negative rail, allowing for ground sensing applications even when using split supplies.

What is the maximum output current capability?

The absolute maximum ratings specify an output current capability of ±20 mA.

How does the TL3116 compare to the LT1116 in terms of power?

The TL3116 consumes much less power than the LT1116 while offering high-speed operation, making it a more efficient alternative.