Texas Instruments LMP7718MME/NOPB

Overview

LMP7718MME/NOPB from Texas Instruments is a dual, decompensated, precision CMOS-input operational amplifier optimized for high-speed, low-noise signal conditioning in 1.8V–5.5V systems. It delivers 88 MHz gain bandwidth at G = +10, 5.8 nV/√Hz input voltage noise, ±150 µV max input offset voltage, and rail-to-rail output swing within 25 mV of either rail (10 kΩ load), enabling high-fidelity photodiode amplification and ADC driver stages.

For engineers reviewing the LMP7718MME/NOPB datasheet, LMP7718MME/NOPB pinout, LMP7718MME/NOPB application, or LMP7718MME/NOPB equivalent, key selection considerations include its minimum stable gain of +10, 1.30 mA per channel supply current, −40°C to 125°C operating range, VSSOP-8 package footprint, and decompensated architecture requiring external compensation for gains < +10.

Technical Context

The LMP7718MME/NOPB employs a decompensated two-pole architecture with dominant pole at 1.6 kHz and second pole at 45 MHz, yielding 88 MHz GBW but requiring closed-loop gain ≥ +10 for unconditional stability. Its VIP50 CMOS process enables 100 fA typical input bias current and rail-to-rail output stage with >40 mA sourcing capability at 1.8V.

Input common-mode range extends to V− (ground in single-supply), supporting direct sensor interfacing; PSRR exceeds 85 dB (1.8V–5.5V) and CMRR reaches 100 dB, ensuring robust performance in noisy industrial and medical environments where precision DC accuracy and AC fidelity are co-required.

Key Specifications

Pinout & Package

The LMP7718MME/NOPB is housed in an 8-pin VSSOP package (2.3 mm × 2.0 mm, 0.5 mm pitch), optimized for space-constrained PCB layouts in portable and medical electronics.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision op amp applications.

Compared with OPA2188AIDR and ADA4898-2ARMZ, the LMP7718MME/NOPB uniquely balances 88 MHz bandwidth, 5.8 nV/√Hz noise, and 1.30 mA/channel supply current in a 2.3 mm × 2.0 mm VSSOP package-making it optimal for portable, battery-sensitive, high-fidelity analog front-ends where neither zero-drift nor RF-grade speed is required.

Availability

LMP7718MME/NOPB is available at Aetrix Electronics and suitable for photodiode amplification, precision ADC driving, and medical sensor interface applications requiring stable component supply, long-term lifecycle assurance, and traceable TI manufacturing.

Supply support for LMP7718MME/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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The LMP7718MME/NOPB belongs to TI's LMP™ precision amplifier family, engineered specifically for low-voltage, low-noise, high-speed instrumentation applications-including sensor signal conditioning, medical diagnostics, and portable test equipment.

FAQ

What is the minimum stable gain for LMP7718MME/NOPB?

The LMP7718MME/NOPB is decompensated and requires a minimum closed-loop gain of +10 for unconditional stability. Operating at lower gains (e.g., unity or G = +2) risks oscillation unless external lead-lag compensation is applied per TI's Application Report SNOSAY7H. This design trade-off enables its 88 MHz GBW while maintaining 1.30 mA per channel supply current. Always verify phase margin using SPICE models before final layout.

Does LMP7718MME/NOPB support true rail-to-rail input?

No, the LMP7718MME/NOPB features rail-to-rail *output* but not rail-to-rail *input*. Its input common-mode voltage range extends to V− (including ground in single-supply use) but only up to (V+ − 1.2 V) at 5V supply-verified in the 5V Electrical Characteristics table. For full rail-to-rail input capability, consider TI's OPA2333 or similar auto-zero devices, though they sacrifice bandwidth and noise performance relative to the LMP7718MME/NOPB.

What package type is used for LMP7718MME/NOPB?

The LMP7718MME/NOPB is supplied exclusively in the 8-pin VSSOP package (DGK suffix), measuring 2.3 mm × 2.0 mm with 0.5 mm lead pitch. This compact footprint matches the SOIC-8 pinout but occupies ~50% less board area-critical for space-constrained portable medical and test equipment. No SOIC-8 variant exists for the LMP7718; only the LMP7717 is offered in SOIC.

Can LMP7718MME/NOPB operate from a 1.8V supply?

Yes, the LMP7718MME/NOPB is fully specified and production-tested for operation at 1.8V supply voltage across 0°C to 125°C ambient temperature. At 1.8V, it maintains 88 MHz GBW, 5.8 nV/√Hz noise, and rail-to-rail output swing within 45 mV of rails (2 kΩ load). This makes it ideal for energy-harvesting and coin-cell-powered instrumentation where ultra-low voltage operation is mandatory.

How does LMP7718MME/NOPB compare to LMP7717 in terms of performance?

The LMP7718MME/NOPB is the dual-channel counterpart to the single-channel LMP7717. Both share identical electrical specifications: 88 MHz GBW, 5.8 nV/√Hz noise, ±150 µV max VOS, and 1.30 mA per channel (vs. 1.15 mA for LMP7717). The LMP7718MME/NOPB uses the same VIP50 CMOS process and VSSOP-8 package, enabling drop-in dual-amplifier functionality in space-constrained designs where two matched, low-noise channels are required.