Texas Instruments LMV934IPW

Overview

LMV934IPW from Texas Instruments is a quad rail-to-rail input/output operational amplifier optimized for 1.8-V to 5-V single-supply operation, delivering 1.4 MHz gain bandwidth, 100 μA per channel supply current, and output swing within 80 mV of rails into 600 Ω - enabling precision signal conditioning in battery-powered industrial metering and portable audio interfaces.

For engineers reviewing the LMV934IPW datasheet, LMV934IPW pinout, LMV934IPW application, or LMV934IPW equivalent, key selection criteria include its –40°C to 125°C operating range, TSSOP-14 package footprint, rail-to-rail common-mode input extending 200 mV beyond supplies, and verified performance at 1.8-V supply with <4 mV max input offset voltage.

Technical Context

The LMV934IPW integrates four independent low-voltage op-amps with Class AB output stages and internal bias control enabling rail-to-rail output swing under load. Its input stage supports common-mode voltages from VCC– – 0.2 V to VCC+ + 0.2 V, and it maintains ≥75 dB large-signal voltage gain into 2 kΩ across 1.8–5 V supplies.

Designed for stability with capacitive loads up to 1000 pF, the device achieves 67° phase margin at 1.8 V and >70° at 2.7 V/5 V, with slew rate scaling from 0.35 V/μs (1.8 V) to 0.42 V/μs (5 V). Amplifier-to-amplifier isolation exceeds 123 dB, supporting multi-channel signal paths without crosstalk degradation.

Key Specifications

Pinout & Package

TSSOP-14 (PW) package: 4.4 mm × 5.0 mm body, 0.65 mm pitch, exposed thermal pad (not electrically connected), JEDEC MO-153 compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad low-voltage op-amp applications.

Compared with TLV9004IPWR and LMV324IPWR, the LMV934IPW uniquely balances ultra-low quiescent current (100 μA), rail-to-rail input beyond supplies, and proven 1.4-MHz bandwidth at 1.8 V - making it optimal for battery-constrained, precision-sensing applications where all three traits are simultaneously required.

Availability

LMV934IPW is available at Aetrix Electronics and suitable for industrial energy metering, automotive cabin sensor interfaces, and portable audio line drivers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMV934IPW 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, embedded processing, and digital signal technologies, with decades of expertise in precision op-amp design and manufacturing.

The LMV93x product line was engineered specifically for low-voltage, low-power signal conditioning in portable and battery-operated systems - emphasizing rail-to-rail performance, sub-100-μA quiescent current, and robust operation from –40°C to 125°C.

FAQ

What is the maximum operating temperature range for the LMV934IPW?

The LMV934IPW is characterized for operation from –40°C to 125°C, fully qualified for under-hood automotive environments and industrial energy metering applications where ambient temperatures exceed 85°C. This specification is guaranteed across all electrical parameters in the datasheet, including input offset voltage, common-mode rejection ratio, and output drive capability - ensuring reliable performance without derating in harsh thermal conditions. The LMV934IPW maintains rail-to-rail functionality and <7.5 mV max VIO throughout this full range.

Does the LMV934IPW support true rail-to-rail input beyond the supply rails?

Yes, the LMV934IPW supports a common-mode input voltage range from VCC– – 0.2 V to VCC+ + 0.2 V, explicitly confirmed in the datasheet's Recommended Operating Conditions table. This 200-mV beyond-rail capability allows direct interfacing with sensors or DACs that output signals exceeding the supply rails - such as overvoltage-tolerant thermocouple amplifiers or 5-V-output DACs in 3.3-V systems - without external clamping or level-shifting circuitry. The LMV934IPW maintains specified CMRR ≥50 dB across this extended range.

What is the typical supply current per channel for the LMV934IPW at 1.8 V?

The LMV934IPW draws 103 μA per channel (typical) at 1.8-V supply, as measured in the Electrical Characteristics table under VCC+ = 1.8 V conditions. This value is confirmed across temperature (100–205 μA full range) and enables four-channel operation at <412 μA total quiescent current - ideal for always-on battery monitoring or sensor wake-up circuits. The LMV934IPW's supply current remains stable across supply voltages from 1.8 V to 5 V, varying by <10% over that range.

Can the LMV934IPW drive a 600-Ω load while maintaining rail-to-rail output swing?

Yes, the LMV934IPW delivers rail-to-rail output swing into 600 Ω loads: at 1.8 V supply, the output reaches within 80 mV of both rails (high-level = 1.72 V, low-level = 0.083 V); at 5 V, it achieves within 160 mV (high-level = 4.89 V, low-level = 0.16 V). These values are measured under standard test conditions (VO = 0.2 V to VCC+ – 0.2 V) and are guaranteed across temperature. The LMV934IPW sustains this performance while delivering <0.023% THD at 1 kHz, confirming suitability for precision analog output stages.

Is the LMV934IPW pin-compatible with other packages in the LMV93x family?

No, the LMV934IPW (TSSOP-14) is not pin-compatible with the SOIC-14 version (LMV934ID), despite sharing identical pin numbering and function mapping. Mechanical differences - including 0.65 mm pitch (PW) vs. 1.27 mm pitch (D), smaller body size (4.4 × 5.0 mm vs. 8.65 × 3.91 mm), and presence of an exposed thermal pad in PW - require separate PCB layouts. While electrical behavior is identical, board redesign is necessary when migrating from SOIC to TSSOP. The LMV934IPW pinout matches only other TSSOP-14 variants like LMV934IPWR.