Texas Instruments LMV7235M5/NOPB

Overview

LMV7235M5/NOPB from Texas Instruments is an ultra-low-power, rail-to-rail input comparator with open-drain output, designed for single-supply operation from 2.7 V to 5.5 V. It delivers 75 ns propagation delay at 5 V, consumes only 65 µA supply current, and supports input common-mode voltage from −0.2 V to 5.2 V - enabling ground- and supply-sensing in portable battery-powered systems.

For engineers reviewing the LMV7235M5/NOPB datasheet, LMV7235M5/NOPB pinout, LMV7235M5/NOPB application, or LMV7235M5/NOPB equivalent, key selection considerations include its open-drain architecture requiring external pull-up for level shifting, 75-ns timing performance under 15-pF load, rail-to-rail input range exceeding supply rails by ±200 mV, and SOT-23-5 packaging optimized for space-constrained designs.

Technical Context

The LMV7235M5/NOPB employs a complementary PNP/NPN input stage enabling rail-to-rail input operation with common-mode range extending 200 mV beyond both supply rails. Its open-drain output lacks internal pull-up, requiring external resistor connection to define logic-high level and enable wired-OR functionality.

Propagation delay remains stable across input overdrive (75 ns at 100 mV overdrive, 89 ns at 20 mV) and temperature (80–96 ns from −40°C to 125°C at 5 V), while supply current stays within 52–110 µA across operating conditions - confirming suitability for always-on, low-duty-cycle sensing nodes.

Key Specifications

Pinout & Package

LMV7235M5/NOPB is packaged in a 5-pin SOT-23 (DBV) package with 2.90 mm × 1.60 mm body size and standard lead pitch. Pin 1 is marked with a dot; device orientation follows JEDEC MO-178AB.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMV7235M5/NOPB, LMV7239M5/NOPB eliminates external pull-up needs but forfeits level-shifting capability, while TLV3501DBVR delivers nanosecond speed at >40× higher current - making LMV7235M5/NOPB the optimal balance of speed, power, and interface flexibility for portable and energy-constrained systems.

Availability

LMV7235M5/NOPB is available at Aetrix Electronics and suitable for portable battery monitoring, zero-crossing detection, high-speed line reception, and power sequencing applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production lots.

Supply support for LMV7235M5/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, power management, and signal chain solutions.

The LMV7235M5/NOPB belongs to TI's low-power, high-speed comparator product line, engineered specifically for energy-efficient sensing, battery-operated instrumentation, and compact consumer electronics where timing accuracy and micropower operation are co-critical.

FAQ

What is the maximum recommended capacitive load for LMV7235M5/NOPB?

The LMV7235M5/NOPB is characterized with 15 pF load in propagation delay specifications. While it can drive larger capacitances, rising edge delay increases significantly with load - e.g., 100 pF raises delay to ~106 ns at 5 V. For reliable 75 ns timing, keep total load ≤15 pF including PCB trace and MCU input capacitance. Use a series resistor near the output if driving >20 pF to damp ringing without degrading delay.

Does LMV7235M5/NOPB support true rail-to-rail output swing?

No - LMV7235M5/NOPB has an open-drain output and does not provide active pull-up. Its output swings from near ground (230 mV max low-level at −4 mA sink) to the external pull-up voltage (e.g., 3.3 V or 5 V). The output high level is defined solely by the external resistor and supply, not by internal circuitry. This architecture enables level shifting but requires careful selection of pull-up value to balance speed and power.

Can LMV7235M5/NOPB operate from a 2.5 V supply?

No - LMV7235M5/NOPB is specified for 2.7 V to 5.5 V operation per absolute maximum and recommended conditions. At 2.5 V, input common-mode range shrinks, propagation delay increases beyond 100 ns, and supply current may fall outside guaranteed limits. For 2.5 V systems, consider TI's TLV3604 (2.7 V min) or Analog Devices' ADCMP350 (2.3 V min), both with verified 2.5 V operation.

What is the input bias current behavior of LMV7235M5/NOPB near supply rails?

LMV7235M5/NOPB exhibits 30–400 nA input bias current at 25°C, but this rises sharply when either input falls below V− −0.1 V or exceeds V+ +0.1 V due to parasitic junction conduction. Within the guaranteed common-mode range (−0.2 V to V+ +0.1 V), bias current remains stable. Operation beyond these limits risks increased offset drift and reduced accuracy - avoid sustained input voltages outside −0.2 V to V+ +0.1 V for precision applications.

Is LMV7235M5/NOPB suitable for driving an LED directly?

No - LMV7235M5/NOPB is not rated for continuous LED drive. Its output can sink up to 20 mA (at V+ = 5 V, IL = −0.4 mA test condition), but sustained current above 1 mA risks exceeding thermal limits in SOT-23. For LED indication, use LMV7235M5/NOPB to control a discrete MOSFET or BJT switch. The comparator itself should remain in low-current signal conditioning mode to preserve its 65 µA quiescent specification and 75 ns timing accuracy.