Texas Instruments LMP7300MME/NOPB

Overview

LMP7300MME/NOPB from Texas Instruments is a micropower precision comparator with integrated 2.048-V bandgap reference and independently adjustable positive/negative hysteresis. It delivers 13 μA supply current, 0.3 mV input offset voltage, and 4 μs propagation delay at 5 V, enabling ultra-low-power threshold detection in battery-critical systems such as portable medical monitors and energy-harvesting sensor nodes.

For engineers reviewing the LMP7300MME/NOPB datasheet, LMP7300MME/NOPB pinout, LMP7300MME/NOPB application, or LMP7300MME/NOPB equivalent, key selection criteria include its open-collector output (12 V tolerant), ±0.75-mV max offset over temperature, 0.25% reference accuracy, and dual hysteresis control pins enabling asymmetric trip-point design without external components.

Technical Context

The LMP7300MME/NOPB integrates a rail-to-rail input comparator and a trimmed bandgap reference on a single die. Its comparator uses an open-collector output stage capable of sinking ≥10 mA while maintaining VOL ≤ 0.4 V across −40°C to 125°C, and supports pullup voltages up to 12 V independent of V+.

Hysteresis is implemented via two dedicated analog input pins (HYSTP and HYSTN), each with 1 V to V+ common-mode range and <4 nA leakage. The reference provides 2.048 V ±0.25% over temperature with 55 ppm/°C drift, 100 μVRMS noise (10 Hz–10 kHz), and 1 mA source/sink capability - enabling direct interface to ADC reference inputs or hysteresis resistor dividers.

Key Specifications

Pinout & Package

Package: VSSOP-8 (3.00 mm × 3.00 mm), lead-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3012IDBVR and MAX9063ASA+, the LMP7300MME/NOPB uniquely combines micropower operation, 2.048 V reference accuracy, and pin-controlled asymmetric hysteresis in a single VSSOP-8 package - enabling compact, low-drift threshold detection without external passive components.

Availability

LMP7300MME/NOPB is available at Aetrix Electronics and suitable for battery monitoring, precision sensor interfaces, zero-crossing detection, and LED control applications requiring stable component supply across automotive, industrial, and portable electronics programs.

Supply support for LMP7300MME/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 leader designing analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The LMP7300MME/NOPB belongs to TI's LMP precision amplifier family, engineered specifically for ultra-low-power, high-accuracy threshold detection where supply current, reference stability, and hysteresis flexibility are critical.

FAQ

What is the maximum supply voltage for the LMP7300MME/NOPB?

The LMP7300MME/NOPB supports a supply voltage range of 2.7 V to 12 V. Absolute maximum rating is 13.6 V, but operation above 12 V is not recommended. At 12 V, supply current remains within specification (14 μA typical), and output can safely sink load currents up to 10 mA with VOL ≤ 0.4 V across temperature.

How does the LMP7300MME/NOPB implement independent positive and negative hysteresis?

The LMP7300MME/NOPB uses dedicated HYSTP and HYSTN pins to set upper (VIH) and lower (VIL) trip thresholds independently. Each pin accepts a voltage between 1 V and V+, and its deviation from VREF determines hysteresis magnitude (e.g., HYSTP = VREF + 3 mV sets VIH = VREF + 3 mV). This architecture isolates hysteresis programming from input impedance and avoids interaction with the comparator's signal path.

Can the LMP7300MME/NOPB reference output drive an ADC reference input directly?

Yes. The LMP7300MME/NOPB REF pin delivers 2.048 V ±0.25% with 55 ppm/°C drift and supports up to 1 mA source/sink current. It meets the accuracy and noise requirements (100 μVRMS, 10 Hz–10 kHz) for 12-bit ADCs. For optimal performance, TI recommends adding a 5-μF capacitor in series with a 190-Ω resistor to ground to filter reference noise.

What is the propagation delay behavior of the LMP7300MME/NOPB under varying overdrive conditions?

The LMP7300MME/NOPB propagation delay decreases with higher overdrive: 12–17 μs at 10 mV overdrive (2.7 V supply), 4–7 μs at 100 mV overdrive (5 V supply), and 3.5–6.8 μs at 100 mV overdrive (12 V supply). Temperature affects delay minimally - variation is <15% from −40°C to 125°C at fixed overdrive - making it predictable for timing-critical threshold events.

Is the LMP7300MME/NOPB output compatible with 3.3 V and 5 V logic systems?

Yes. The LMP7300MME/NOPB features an open-collector output that is fully compatible with 3.3 V and 5 V logic families. When used with a 3.3 V pullup, OUT sinks current to produce a valid LOW; when pulled to 5 V, it achieves TTL/CMOS-compatible HIGH states. The output is rated for up to 12 V, allowing direct interface to higher-voltage peripherals without level shifters.