Texas Instruments LMV7219M7X/NOPB

Overview

LMV7219M7X/NOPB from Texas Instruments is a single-channel, rail-to-rail output comparator with 7 ns propagation delay, 1.1 mA supply current at 5 V, and input common-mode range extending 200 mV below ground - enabling ground-sensing in portable battery-powered systems.

For engineers reviewing the LMV7219M7X/NOPB datasheet, LMV7219M7X/NOPB pinout, LMV7219M7X/NOPB application, or LMV7219M7X/NOPB equivalent, key selection criteria include propagation delay vs. supply current trade-off, internal 7.5 mV hysteresis for noise immunity, rail-to-rail push-pull output drive capability, and SC-70-5 package suitability for space-constrained high-speed signal conditioning.

Technical Context

The LMV7219M7219M7X/NOPB uses a PNP-input differential stage enabling −0.2 V to (V_CC − 1.3 V) common-mode range and outward-flowing input bias current (500–950 nA). Its internal hysteresis is fixed at 7.5 mV (typ), independent of supply voltage or temperature, eliminating external resistor networks required by standard comparators.

It operates from 2.7 V to 5 V single supply, delivers rail-to-rail push-pull output swing (e.g., 80–180 mV low, V_CC−0.13 V high at 4 mA load), and maintains sub-1 ns propagation delay skew across temperature - critical for precise zero-crossing detection and high-speed sampling timing integrity.

Key Specifications

Pinout & Package

LMV7219M7X/NOPB is packaged in SC-70-5 (DCK), measuring 2.00 mm × 1.25 mm, with 0.65 mm lead pitch - optimized for high-density portable PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed comparator applications.

Compared with TLV3501DBVR and MAX961ESA+, the LMV7219M7X/NOPB uniquely balances 7 ns speed, 1.1 mA efficiency, internal hysteresis, and single-supply rail-to-rail operation - making it optimal for modern portable and embedded designs where integration, power, and size are co-constrained.

Availability

LMV7219M7X/NOPB is available at Aetrix Electronics and suitable for portable power management, high-speed signal conditioning, zero-crossing detection, and crystal oscillator buffering requiring stable component supply and long-term production continuity.

Supply support for LMV7219M7X/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in precision analog, high-speed interface, and low-power signal chain solutions.

The LMV7219M7X/NOPB belongs to TI's high-speed comparator product line, engineered specifically for battery-powered and space-constrained applications demanding nanosecond-level timing accuracy with minimal quiescent power.

FAQ

What is the maximum operating supply voltage for LMV7219M7X/NOPB?

The absolute maximum supply voltage (V+ − V−) for LMV7219M7X/NOPB is 5.5 V. The recommended operating range is 2.7 V to 5 V. Exceeding 5.5 V risks permanent damage to the input stage, especially under large differential input conditions. Operation at 5 V delivers optimal propagation delay (7 ns) and output drive strength while maintaining 1.1 mA supply current - consistent with all electrical characteristics specified in the official TI SNOS458I datasheet.

Does LMV7219M7X/NOPB require external hysteresis resistors?

No, LMV7219M7X/NOPB integrates 7.5 mV of internal hysteresis, eliminating the need for external positive-feedback resistors in most threshold-detection applications. This simplifies design, saves PCB area, and improves reliability. External hysteresis can be added using three resistors if wider bands (>100 mV) are required, but doing so increases propagation delay. The internal hysteresis remains stable across temperature and supply voltage - a key differentiator confirmed in Section 7.4 and Table 6.6 of the LMV7219M7X/NOPB datasheet.

Can LMV7219M7X/NOPB operate with input voltages below ground?

Yes, LMV7219M7X/NOPB supports an input common-mode voltage range extending to −0.2 V (minimum) relative to V−, enabling true ground-sensing functionality. This is achieved via its PNP-input architecture. However, driving inputs below −0.2 V forward-biases parasitic junctions, increasing input bias current and potentially degrading performance. For reliable ground-referenced operation - such as in current-sense amplifier outputs or zero-crossing detectors - the LMV7219M7X/NOPB must be used within its specified −0.2 V to (V_CC − 1.3 V) input range.

What is the output drive capability of LMV7219M7X/NOPB?

LMV7219M7X/NOPB features a rail-to-rail push-pull output stage capable of sourcing up to 68 mA and sinking up to 65 mA (short-circuit, 5 V supply). Under typical 4 mA load conditions, it delivers VOH = V_CC − 0.13 V and VOL = 80 mV - ensuring clean logic-level compatibility with 3.3 V and 1.8 V microcontrollers. The fast 1.3 ns rise and 1.25 ns fall times support high-frequency switching, and the absence of external pull-up requirements reduces system power and layout complexity - all verified in Sections 6.5 and 6.6 of the TI SNOS458I datasheet.

Is LMV7219M7X/NOPB suitable for crystal oscillator applications?

Yes, LMV7219M7X/NOPB is explicitly validated for crystal oscillator use, as shown in Figure 17 of the TI SNOS458I datasheet. Its 7 ns propagation delay, low input bias current, and rail-to-rail output enable stable fundamental-mode oscillation with AT-cut quartz crystals. When configured with appropriate external bias and feedback resistors (R1–R4) and capacitor (C1), it delivers low-jitter square-wave output with ~50% duty cycle - ideal for MCU clock buffering and timing reference generation. Thermal stability up to 105°C PCB temperature further supports reliability in enclosed consumer electronics enclosures.