TLV3701CD

Comparators Overview

The TLV3701CD is a single-channel nanopower comparator from Texas Instruments featuring a push-pull CMOS output stage. It operates on a single supply voltage ranging from 2.5V to 16V, with an extended industrial temperature range of -40°C to 125°C for the ID suffix and 0°C to 70°C for the CD suffix. The device draws only 560nA per channel at 2.7V. Key electrical specifications include a typical input offset voltage of 250µV at 25°C, a maximum of 5mV across the full temperature range. Propagation delays are typically 34µs (low-to-high) and 45µs (high-to-low) with 10mV overdrive. The input common-mode range extends from -0.1V to VCC + 5V, providing reverse battery protection up to 20V.

Comparators Feature Summary

• Ultra-low power consumption with 560nA per channel supply current ideal for battery-powered applications
• Extended input common-mode range exceeding supply rails by up to 5V without damage
• Integrated Power-on-Reset circuitry ensures known start-up conditions
• Push-pull CMOS output stage eliminates need for external pull-up resistors

Comparators Applications

• Portable battery monitoring systems
• Consumer medical electronics
• Security detection systems
• Handheld instruments
• Ultra-low power wireless applications

Comparators Procurement Notes

Verify the specific suffix indicates the correct temperature grade; 'C' denotes commercial (0°C to 70°C) while 'I' denotes industrial (-40°C to 125°C). Confirm package availability as the SOIC variant may be offered in tape-and-reel options requiring an 'R' suffix. Ensure design accounts for the 3ms start-up time during power ramping due to internal reset circuits. Validate input signal levels against the absolute maximum ratings to prevent damage.

Comparators Selection Notes

Select this component when minimizing quiescent current is critical compared to speed requirements. The TLV3701CD offers rail-to-rail input capability extending beyond the positive supply, suitable for low-voltage sensing. Consider the TLV3702 or TLV3704 if multiple channels are needed. Note that propagation delay increases significantly at lower overdrive voltages; ensure system timing margins account for worst-case delay values specified in the datasheet.

Comparators Part Context

The TLV3701CD belongs to the TLV370x family of nanopower comparators, which also includes the dual-channel TLV3702 and quad-channel TLV3704. This family represents Texas Instruments' initial entry into the nanopower comparator segment, designed specifically for applications where battery life is paramount. Unlike open-drain comparators in similar classes, this device utilizes a push-pull output architecture to drive loads directly without additional passive components.

Comparators Replacement Considerations

Public confirmed substitutes include the TLV3702CD for dual-channel requirements and the TLV3704CD for quad-channel configurations within the same family. For general replacement, verify that the alternative device supports the required input common-mode range extension above VCC and maintains comparable supply current levels to preserve battery life objectives.

Comparators FAQ

Does the TLV3701CD require an external pull-up resistor?

No, the TLV3701CD features a push-pull CMOS output stage that can source and sink current, eliminating the need for an external pull-up resistor.

What is the behavior of the output during power-up?

An internal Power-on-Reset (POR) circuit holds the output low for approximately 3ms after the supply voltage crosses 1.5V to ensure known start-up conditions.

Can the inputs withstand voltages higher than the supply voltage?

Yes, the inputs have a common-mode range of -0.1V to VCC + 5V and offer reverse battery protection up to 20V, allowing operation independent of the supply voltage level.