Texas Instruments LMV722M

Overview

LMV722M from Texas Instruments is a dual, rail-to-rail output, low-noise (9 nV/√Hz), low-voltage (2.2 V to 5.5 V), and low-power (1.81 mA/amplifier at 2.2 V) operational amplifier in an SOIC-8 package. It delivers 10 MHz unity-gain bandwidth and 5.25 V/µs slew rate at 5 V supply, enabling precision signal conditioning in battery-powered audio preamplifiers and portable active filters.

For engineers reviewing the LMV722M datasheet, LMV722M pinout, LMV722M application, or LMV722M equivalent, key selection criteria include its guaranteed 2.2 V operation, input common-mode range extending to ground, 120 mV rail-to-rail output swing into 600 Ω at 2.2 V, and robust capacitive load drive capability up to 4700 pF in unity-gain configuration.

Technical Context

The LMV722M employs a bipolar input stage with 260 nA typical input bias current and integrates TI's Submicron Silicon-Gate BiCMOS process for optimized low-voltage performance. Its input common-mode voltage range includes ground (−0.3 V to 4.1 V at 5 V), supporting single-supply sensor interfacing without level-shifting.

It features stable unity-gain operation with 67.4° phase margin at 2.2 V and 72° at 5 V, and maintains rail-to-rail output swing-2.065 V high / 0.145 V low into 600 Ω at 2.2 V-enabling maximum dynamic range in low-voltage systems.

Key Specifications

Pinout & Package

LMV722M is housed in an 8-pin SOIC package (Package Drawing D, JEDEC MS-012), measuring 4.9 mm × 3.9 mm × 1.45 mm, with standard 1.27 mm lead pitch and RoHS-compliant matte tin (Sn) lead finish. Thermal resistance θ_JA is 190°C/W on a 2-layer PCB with 2-in² copper pour.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual low-voltage operational amplifier applications.

Compared with LMV722M, LMV722MM/NOPB offers identical performance in a 44% smaller footprint but requires rework of solder stencil and pick-and-place programming, while TLV272IDR trades 70% bandwidth and higher offset for 40% lower supply current - making LMV722M optimal for bandwidth- and noise-sensitive dual-channel signal chains.

Availability

LMV722M is available at Aetrix Electronics and suitable for cellular phone audio front-ends, laptop touchscreen reference buffers, and portable medical sensor interfaces requiring stable component supply across multi-year production cycles.

Supply support for LMV722M 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 over 50 years of innovation in precision amplifiers and power management ICs.

The LMV722M belongs to TI's LMV72x low-voltage op amp family, engineered for high-fidelity signal conditioning in space- and power-constrained portable electronics operating down to 2.2 V.

FAQ

What is the minimum supply voltage for guaranteed operation of the LMV722M?

The LMV722M is specified for guaranteed operation from 2.2 V to 5.5 V. At 2.2 V, all key parameters-including 10 MHz unity-gain bandwidth, 5 V/µs slew rate, and rail-to-rail output swing-are ensured per the datasheet's 2.2 V Electrical Characteristics table. Operation below 2.2 V may result in degraded gain, bandwidth, or output swing, and is not characterized.

Does the LMV722M support rail-to-rail input common-mode voltage range?

No, the LMV722M does not support rail-to-rail input common-mode voltage. Its input common-mode range extends from −0.3 V to 4.1 V at 5 V supply (or −0.3 V to 1.3 V at 2.2 V), which includes ground but stops 0.3 V short of the negative rail and 0.9 V short of the positive rail at 5 V. This allows ground-referenced single-supply operation but prohibits direct connection to V+ or V−.

Can the LMV722M drive a 1000 pF capacitive load in unity-gain configuration without oscillation?

Yes, the LMV722M is explicitly characterized for stable unity-gain operation with up to 4700 pF capacitive load, as confirmed in the "Capacitive Load Tolerance" section of the datasheet. Driving 1000 pF poses no stability risk; however, a 100 nF ceramic bypass capacitor must still be placed between V+ (Pin 8) and ground near the device to maintain PSRR and prevent supply-induced oscillation.

What is the maximum output current capability of the LMV722M at 2.2 V supply?

At 2.2 V supply, the LMV722M can source up to 14.9 mA (minimum 10.0 mA) and sink up to 17.6 mA (minimum 10.0 mA), as specified in the 2.2 V DC Electrical Characteristics table under "Output Current." These values are measured with V_IN(diff) = ±0.5 V and define safe continuous output drive capability without thermal shutdown or parametric shift.

How does the LMV722M's input bias current affect precision DC applications?

The LMV722M has a typical input bias current of 260 nA (bipolar input stage), which creates offset voltage errors when flowing through unmatched input resistors. For example, a 100 kΩ resistor at the inverting input generates 26 mV of error. To mitigate this, use matched resistors at both inputs (e.g., R_IN = R_F) or select the LMV722M specifically for its low 3.5 mV max input offset voltage over temperature - a key advantage over FET-input alternatives with higher offset drift.