Texas Instruments LMV7219M7X

Overview

LMV7219M7X 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-designed for high-speed threshold detection in portable battery-powered systems.

For engineers reviewing the LMV7219M7X datasheet, LMV7219M7X pinout, LMV7219M7X application, or LMV7219M7X equivalent, key selection criteria include propagation delay vs. supply current trade-off, internal hysteresis (7.5 mV typ. at 5 V), rail-to-rail push-pull output drive capability, and SC-70-5 package compatibility with space-constrained PCB layouts.

Technical Context

The LMV7219M7X employs a PNP-input differential stage enabling ground-sensing operation and delivering consistent 7 ns propagation delay across 2.7–5 V supply range. Its internal hysteresis (7.5 mV) is stable over temperature and supply voltage, eliminating external feedback components for noise-immune switching.

It features a push-pull output stage capable of sourcing up to 68 mA and sinking up to 65 mA at 5 V, with fast rise/fall times (1.3 ns / 1.25 ns) and low output swing (80 mV low, V_CC−0.13 V high at 4 mA load), optimized for driving logic inputs or small capacitive loads directly.

Key Specifications

Pinout & Package

LMV7219M7X is packaged in SC-70-5 (DCK), measuring 2.00 mm × 1.25 mm, with 0.65 mm lead pitch and exposed pad not present. This ultra-small outline supports high-density routing and thermal performance via board-level conduction (R_θJB = 76 °C/W).

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 delivers optimal balance of speed (7 ns), ultra-low quiescent current (1.1 mA), and integrated hysteresis-making it the preferred choice for battery-operated, space-constrained applications where design simplicity and power efficiency are prioritized over absolute minimum delay.

Availability

LMV7219M7X is available at Aetrix Electronics and suitable for portable power monitoring, IR signal demodulation, crystal oscillator buffering, and zero-crossing detection requiring stable component supply and long-term production continuity.

Supply support for LMV7219M7X 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 leader specializing in analog and embedded processing technologies, with decades of expertise in high-performance comparators and precision signal-chain solutions.

The LMV7219M7X belongs to TI's low-voltage, high-speed comparator product line-engineered specifically for battery-powered instrumentation, portable sensing, and compact timing-critical interfaces where size, speed, and power efficiency intersect.

FAQ

What is the maximum operating supply voltage for LMV7219M7X?

The LMV7219M7X has an absolute maximum supply voltage (V+ − V−) of 5.5 V, but its recommended operating range is 2.7 V to 5 V. Operation above 5 V risks permanent damage per Absolute Maximum Ratings. The LMV7219M7X achieves optimal propagation delay (7 ns) and supply current (1.1 mA) at 5 V nominal, with full functionality maintained down to 2.7 V.

Does LMV7219M7X require external hysteresis resistors?

No, the LMV7219M7X integrates 7.5 mV typical hysteresis, eliminating the need for external positive-feedback resistors in most applications. This built-in hysteresis ensures clean output transitions even with slow-moving or noisy inputs. External hysteresis can be added using three resistors if wider bands (>100 mV) are required, but the LMV7219M7X functions reliably out-of-the-box for standard zero-crossing or threshold-detection use cases.

What is the input bias current direction and magnitude for LMV7219M7X?

The LMV7219M7X uses a PNP-input stage, so input bias current flows *out* of both +IN and −IN pins. At 5 V and 25°C, typical input bias current is 500–950 nA, with a maximum of 2 µA over temperature. This outward flow must be accounted for in high-impedance source networks-e.g., using low-leakage biasing or guarding-to avoid offset errors. The LMV7219M7X datasheet explicitly confirms this behavior in Section 7.1.

Can LMV7219M7X operate with inputs below ground?

Yes, the LMV7219M7X supports an input common-mode voltage range extending to −0.2 V (minimum) relative to V−, enabling true ground-sensing capability. When V− = 0 V (single-supply mode), inputs may go as low as −0.2 V-sufficient for detecting signals from current-sense shunts or thermocouples referenced to system ground. Operation below −0.2 V risks parasitic junction conduction and increased bias current, as documented in Section 7.1 of the LMV7219M7X datasheet.

What package type does LMV7219M7X use, and is it RoHS-compliant?

The LMV7219M7X uses the SC-70-5 (DCK) package: 2.00 mm × 1.25 mm body, 0.65 mm lead pitch, surface-mount, lead-free, and RoHS-compliant per TI's official packaging documentation. This package is distinct from the SOT-23-5 variant (DBV) and optimized for ultra-compact layouts. TI confirms Pb-free matte tin lead finish and JEDEC-standard reflow profiles for the LMV7219M7X DCK package in its Mechanical, Packaging, and Orderable Information section.