TLV2302IDGKG4

Overview

The TLV2302IDGKG4 is a dual-channel nano-power integrated circuit combining one operational amplifier and one open-drain comparator. It operates on a single supply voltage ranging from 2.5 V to 16 V, with electrical characteristics specified at 2.7 V, 5 V, and 15 V. The device draws a typical supply current of 1.4 μA for the combined op-amp and comparator functions. The operational amplifier features rail-to-rail input and output capabilities, a gain bandwidth product of 5.5 kHz, and an input common-mode range extending from –0.1 V to VCC + 5 V. The comparator utilizes an open-drain CMOS output stage requiring an external pull-up resistor.

Feature Summary

• Combines a sub-micropower operational amplifier and an open-drain comparator in a single package to reduce board space and part counts.
• Features reverse battery protection up to 18 V to guard against over-current conditions caused by improper battery installation.
• Supports input voltages up to 5 V above the positive supply rail without damage, enabling operation in harsh environments.
• Provides rail-to-rail input and output performance for the operational amplifier section.

Applications

• Battery-powered portable applications where quiescent current is the primary concern
• Systems requiring both signal conditioning and threshold detection within limited board space
• Portable devices utilizing mega-ohm resistors due to extremely low input bias currents

Procurement Notes

Verify the specific ordering suffix 'DGK' corresponds to the 8-pin MSOP plastic package as defined in the datasheet options table. Confirm that the 'I' suffix indicates the industrial temperature range of –40°C to 125°C. Ensure the component matches the SLOS343 specification sheet for the Texas Instruments TLV230x family. Cross-reference the pinout diagram to confirm the arrangement of amplifier and comparator terminals for your specific PCB layout requirements.

Selection Notes

Select this component when a design requires both amplification and comparison functions but power consumption must remain in the microampere range. It is suitable for applications compatible with Li-Ion battery systems and micropower microcontrollers like the MSP430. Consider the open-drain nature of the comparator output, which necessitates an external pull-up resistor, versus the push-pull outputs found in other family members like the TLV270x if drive capability is critical.

Part Context

The TLV2302IDGKG4 belongs to the TLV230x family of nano-power operational amplifiers and open-drain comparators published by Texas Instruments in December 2000. This family integrates high DC accuracy with ultra-low power consumption. The dual configuration (TLV2302) packages one op-amp and one comparator in an 8-pin MSOP, while the quad version (TLV2304) offers two of each in a TSSOP package. The device is designed for industrial temperature ranges and emphasizes low offset voltage and high common-mode rejection ratios.

Replacement Considerations

Public confirmed substitute part numbers: TLV2302ID, TLV2302IDR, TLV2302IP.