Texas Instruments LMV341IDCKRG4

Overview

LMV341IDCKRG4 from Texas Instruments is a single-channel, rail-to-rail output CMOS operational amplifier with active-low shutdown control, designed for ultra-low-power, space-constrained applications. It delivers 1 MHz gain bandwidth, 1 V/μs slew rate, 0.25 mV typical input offset voltage, and operates from 2.7 V to 5.5 V supply while consuming only 100 μA quiescent current - ideal for battery-powered audio preamplifiers and supply-current monitoring circuits.

For engineers reviewing the LMV341IDCKRG4 datasheet, LMV341IDCKRG4 pinout, LMV341IDCKRG4 application, or LMV341IDCKRG4 equivalent, key selection criteria include its SC70-6 package footprint, 1 pA typical input bias current, shutdown current of 33 nA (typical at 5 V), rail-to-rail output swing within 30 mV of rails (at 10 kΩ load), and guaranteed operation across –40°C to +125°C.

Technical Context

The LMV341IDCKRG4 employs a PMOS input stage enabling rail-to-rail common-mode input range down to ground and up to V+ – 1 V, combined with a CMOS output stage delivering true rail-to-rail output swing. Its shutdown functionality disables internal circuitry and places the output in high-impedance state, reducing supply current to ≤33 nA (typical).

Designed for single-supply operation, it maintains stable unity-gain bandwidth (1 MHz) and phase margin (≥70°) across 2.7 V–5.5 V supply and –40°C to +125°C temperature range. Input referred voltage noise is 39–40 nV/√Hz at 1 kHz, and ESD robustness meets ±2000 V HBM and ±750 V CDM per JESD22.

Key Specifications

Pinout & Package

LMV341IDCKRG4 is packaged in a 6-pin SC70 (DCK) package measuring 2.00 mm × 1.25 mm, optimized for ultra-dense PCB layouts in portable electronics.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV6001IDCKR and OPA316IDBVR, LMV341IDCKRG4 uniquely balances ultra-low shutdown current (33 nA), SC70-6 footprint, and integrated shutdown control - making it the only option among the three for energy-harvesting or long-life battery systems needing periodic wake-up.

Availability

LMV341IDCKRG4 is available at Aetrix Electronics and suitable for battery monitoring, audio preamplifiers, and supply-current monitoring applications requiring stable component supply, extended temperature support (–40°C to +125°C), and consistent SC70 packaging across production lots.

Supply support for LMV341IDCKRG4 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 expertise in precision amplifiers and low-power signal conditioning.

The LMV34x family was engineered specifically for ultra-low-power, single-supply portable electronics - emphasizing rail-to-rail performance, nanowatt shutdown, and robust operation across harsh environmental conditions.

FAQ

What is the maximum operating supply voltage for LMV341IDCKRG4?

The absolute maximum supply voltage for LMV341IDCKRG4 is 5.5 V. Operation above this risks permanent damage. The recommended operating range is 2.7 V to 5.5 V, with full electrical specifications guaranteed across that span. At 5.5 V, the device maintains 1 MHz gain bandwidth and rail-to-rail output swing, but thermal dissipation must be verified per RθJA = 193.4°C/W for the SC70 package.

Does LMV341IDCKRG4 support true rail-to-rail input?

LMV341IDCKRG4 supports rail-to-rail *output* swing, but its input common-mode range extends from ground to V+ – 1 V - not full rail-to-rail. This means the noninverting input can accept signals down to 0 V (GND), but the upper limit is 1 V below V+. For example, at 3.3 V supply, valid input voltages are 0 V to 2.3 V. This architecture enables ground-referenced sensing while maintaining CMOS input stage integrity.

How does the shutdown function behave on LMV341IDCKRG4?

LMV341IDCKRG4 features an active-low SHDN pin (Pin 5). When pulled to GND, the amplifier enters shutdown mode: supply current drops to ≤33 nA (typical at 5 V), and the output becomes high-impedance. When SHDN is pulled to ≥4.5 V (at 5 V supply) or ≥2.4 V (at 2.7 V supply), normal operation resumes with 5 μs typical turn-on time. No external pull-up is required if driven actively.

Can LMV341IDCKRG4 drive capacitive loads?

LMV341IDCKRG4 is stable with capacitive loads up to 100 pF when configured as a unity-gain buffer. For larger loads (e.g., 500–1000 pF), phase margin degrades - Figure 5-24 shows reduced stability margins at CL = 500 pF and 1000 pF. To drive >100 pF, add a small series resistor (10–50 Ω) between output and load, or use a dedicated buffer stage. Avoid direct connection to long PCB traces or unbuffered ADC inputs with large sampling capacitance.

Is LMV341IDCKRG4 suitable for automotive applications?

Yes - LMV341IDCKRG4 is qualified for operation from –40°C to +125°C and meets AEC-Q100 stress test requirements for temperature cycling, HTOL, and ESD (HBM ±2000 V). Its low 100 μA quiescent current, rail-to-rail output, and shutdown capability make it appropriate for body control modules, battery management subsystems, and infotainment sensor interfaces where space and power are constrained.