Texas Instruments LMP7707MF/NOPB

Overview

LMP7707MF/NOPB from Texas Instruments is a single-channel, decompensated, precision CMOS-input operational amplifier with rail-to-rail input and output, ±200 µV max input offset voltage, 9 nV/√Hz input voltage noise, and stable operation at gain ≥6. It operates from 2.7 V to 12 V supply and supports −40°C to +125°C industrial temperature range - ideal for high-impedance sensor interface circuits in battery-powered instrumentation.

For engineers reviewing the LMP7707MF/NOPB datasheet, LMP7707MF/NOPB pinout, LMP7707MF/NOPB application, or LMP7707MF/NOPB equivalent, key selection criteria include its guaranteed low input bias current (±200 fA), rail-to-rail swing within 40 mV of rails at 3 V, 14 MHz gain-bandwidth product at AV = 10, and compatibility with low-voltage, high-precision signal conditioning where conventional CMOS op-amps fail due to supply or common-mode constraints.

Technical Context

The LMP7707MF/NOPB uses VIP50 CMOS process technology to achieve simultaneous rail-to-rail input stage operation and wide 2.7 V–12 V supply range - a combination not feasible in standard CMOS op-amps. Its decompensated architecture delivers higher bandwidth (14 MHz GBWP) and slew rate (5.6 V/µs) than unity-gain-stable equivalents at identical supply current (715 µA).

Input stage trimming minimizes CMRR glitches across the rail-to-rail common-mode range (−0.2 V to 5.2 V at 5 V supply), while dual-MOSFET input symmetry ensures ultra-low input bias current (±200 fA typ) and low input offset drift (±1 µV/°C typ). Output stage drives ±40 mA short-circuit current and swings to within 40 mV of either rail under 2 kΩ load.

Key Specifications

Pinout & Package

Package: 5-pin SOT-23 (DBV), surface-mount, footprint-compatible with industry-standard SC-70.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA377AIDBVR and ADA4625-1ARMZ, the LMP7707MF/NOPB uniquely delivers 14 MHz bandwidth at just 715 µA supply current and guarantees stability at AV ≥ 6 - making it optimal for high-gain, low-power, wideband precision signal chains where unity-gain operation is not required.

Availability

LMP7707MF/NOPB is available at Aetrix Electronics and suitable for high-impedance sensor interface, battery-powered instrumentation, and DAC buffering requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for LMP7707MF/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 specializing in analog and embedded processing technologies, with decades of precision amplifier innovation and broad industrial qualification.

The LMP™ precision amplifier family - including the LMP7707MF/NOPB - was engineered for high-accuracy, low-power signal conditioning in sensor interfaces, medical devices, and portable test equipment demanding rail-to-rail operation and extreme input impedance.

FAQ

What is the minimum stable closed-loop gain for the LMP7707MF/NOPB?

The LMP7707MF/NOPB is decompensated and specified as stable only at closed-loop gains of 6 or higher. Attempting unity-gain or gain-of-2 configurations without external compensation will result in oscillation or excessive peaking. For gain < 6, external compensation (e.g., dominant-pole capacitor) is required - refer to Figure 45 in the TI SNOSAW5B datasheet for isolation resistor (R_ISO) guidance when driving capacitive loads.

Does the LMP7707MF/NOPB support true rail-to-rail input common-mode voltage range?

Yes - the LMP7707MF/NOPB features a fully rail-to-rail input stage that operates from V− − 0.2 V to V+ + 0.2 V. At 5 V supply, this covers −0.2 V to 5.2 V, enabling direct interfacing with sensors or DACs whose outputs swing beyond traditional op-amp input limits. This is achieved via trimmed complementary NMOS/PMOS input pairs, minimizing CMRR degradation near the rails.

What is the maximum capacitive load the LMP7707MF/NOPB can drive without instability?

Uncompensated, the LMP7707MF/NOPB is stable into resistive loads but becomes unstable with >20 pF capacitive load in unity-gain follower configuration. To drive larger capacitive loads (e.g., ADC inputs, cables), an isolation resistor (R_ISO) of 10–100 Ω must be placed between the output and the load capacitance - as shown in Figure 45 of the datasheet - decoupling CL from the feedback loop and restoring phase margin.

How does the LMP7707MF/NOPB achieve ±200 fA input bias current?

The LMP7707MF/NOPB achieves ±200 fA typical input bias current using Texas Instruments' VIP50 CMOS process with optimized gate oxide thickness and layout techniques that minimize gate leakage. This is confirmed by characterization data across temperature (−40°C to +125°C), where bias current remains < ±400 pA - enabling use in femtoampere-level current measurement and ultra-high-impedance sensor buffering without guard rings or T-networks.

Is the LMP7707MF/NOPB pin-compatible with other SOT-23 op-amps?

No - the LMP7707MF/NOPB uses a nonstandard 5-pin SOT-23 pinout (IN−, IN+, OUT, V−, V+) that differs from common 5-pin op-amps like the TLV27x or OPA34x families. Substitution requires PCB layout revision. Always verify pin mapping against the "Connection Diagrams" section (Figures 2–5) in the SNOSAW5B datasheet before board design or replacement.