Texas Instruments LMV342IDGKRG4

Overview

LMV342IDGKRG4 from Texas Instruments is a dual-channel, rail-to-rail output CMOS operational amplifier with shutdown capability, designed for low-voltage (2.7V–5.5V), low-power applications. It delivers 1 MHz gain bandwidth, 1 V/μs slew rate, 0.25 mV typical input offset voltage, and ultra-low 1 pA typical input bias current - enabling precision signal conditioning in space-constrained portable electronics.

For engineers reviewing the LMV342IDGKRG4 datasheet, LMV342IDGKRG4 pinout, LMV342IDGKRG4 application, or LMV342IDGKRG4 equivalent, key selection criteria include shutdown current (33 nA typ. at 5V), rail-to-rail output swing (≤30 mV from rails at 10 kΩ), extended industrial temperature range (–40°C to +125°C), and VSSOP-8 package compatibility with high-density PCB layouts.

Technical Context

The LMV342IDGKRG4 integrates two independent CMOS op-amp channels sharing a single shutdown control (SHDN) pin, supporting coordinated power gating. Its PMOS input stage enables rail-to-rail common-mode input range down to ground and up to V+ – 1 V, while the CMOS output stage ensures full rail-to-rail output swing with <30 mV headroom at 10 kΩ load.

Shutdown mode reduces supply current to 33 nA (typ. at 5V) and places outputs in high-impedance state; turn-on time is 5 μs (typ.). The device operates across 2.5V–5.5V supply and maintains stable unity-gain performance with ≥70° phase margin under 2 kΩ–100 kΩ loads and 0–1000 pF capacitive loading.

Key Specifications

Pinout & Package

DGK package: 8-pin Very Small Outline Package (VSSOP), body size 3.00 mm × 3.00 mm, 0.65 mm pitch, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP6022-E/SN and TLV2462IDR, LMV342IDGKRG4 uniquely combines sub-100 nA shutdown current, 1 pA input bias, and VSSOP-8 footprint - making it optimal for ultra-low-power, high-impedance, space-constrained designs where precision and power gating are co-required.

Availability

LMV342IDGKRG4 is available at Aetrix Electronics and suitable for battery monitoring, audio preamplifiers, and supply-current monitoring requiring stable component supply across automotive, industrial, and portable consumer applications.

Supply support for LMV342IDGKRG4 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 LMV34x family was engineered for ultra-low-power, rail-to-rail signal conditioning in battery-operated devices - emphasizing precision, small packaging, and integrated power management features like shutdown.

FAQ

What is the maximum supply voltage for LMV342IDGKRG4?

The absolute maximum supply voltage for LMV342IDGKRG4 is 5.5 V. Operation above this level risks permanent damage per the Absolute Maximum Ratings table. Recommended operating range is 2.5 V to 5.5 V, with stable performance confirmed at 2.7 V and 5 V in electrical characterization data. LMV342IDGKRG4 must never be subjected to reverse polarity or supply sequencing that violates GND-to-V+ monotonicity.

Does LMV342IDGKRG4 support true rail-to-rail input?

LMV342IDGKRG4 does not support rail-to-rail input: its common-mode input range extends from GND to V+ – 1 V (e.g., 0 V to 4 V at 5 V supply). This is enabled by the PMOS input stage, which allows ground-referenced sensing but excludes the top 1 V of the supply rail. Full rail-to-rail input would require complementary input pairs not implemented in this device. LMV342IDGKRG4's input specification is explicitly documented in Sections 5.5 and 5.6 of the datasheet.

How does shutdown mode affect the output state of LMV342IDGKRG4?

In shutdown mode (SHDN pin pulled low), LMV342IDGKRG4 disables both amplifier channels and forces both outputs into high-impedance state - neither sourcing nor sinking current. Output voltage floats and must be externally biased if DC continuity is required. This behavior is confirmed in Section 6.3.3 and shutdown characterization tables (Sections 5.7–5.8), where ICC drops to 33 nA (typ. at 5 V) and output leakage remains <100 nA.

Can LMV342IDGKRG4 drive a 600 Ω load?

Yes, LMV342IDGKRG4 can drive a 600 Ω load, but with reduced output swing and increased THD+N. At 5 V supply, output swing degrades to ~1.8 VPP (vs 4.9 VPP at 10 kΩ), and THD+N rises to 0.012% at 1 kHz per Section 5.6. For full rail-to-rail utilization into 600 Ω, external buffering is recommended. LMV342IDGKRG4's short-circuit current capability (85 mA sourcing, 50 mA sinking) confirms safe operation into low-Z loads without latch-up.

Is LMV342IDGKRG4 pin-compatible with other VSSOP-8 dual op-amps?

LMV342IDGKRG4 uses standard VSSOP-8 pinout (per Figure 4-2 and Table 4-2), matching industry conventions for dual op-amps: pins 1/7 = outputs, 2/6 = inverting inputs, 3/5 = noninverting inputs, 4 = GND, 8 = V+. However, pin compatibility does not imply functional equivalence - e.g., MCP6022 lacks SHDN on pin 5, and TLV2462 uses pin 5 for NC. Always verify signal routing and enable logic before drop-in replacement. LMV342IDGKRG4's SHDN pin (pin 5) is active-low and requires pull-up for normal operation.