STMicroelectronics LMV824IYDT

Overview

LMV824IYDT from STMicroelectronics is a quad, rail-to-rail output, low-power operational amplifier with shutdown capability, designed for automotive signal conditioning and portable instrumentation. It delivers 5.5 MHz gain bandwidth, 0.8 mV max input offset voltage (enhanced grade), 400 µA max supply current per channel at 5 V, and operates across –40°C to +125°C in TSSOP-14 package.

For engineers reviewing the LMV824IYDT datasheet, LMV824IYDT pinout, LMV824IYDT application, or LMV824IYDT equivalent, this page provides verified electrical specifications, validated shutdown timing (300 ns turn-on), rail-to-rail output behavior under 2 kΩ load, and automotive-grade thermal and ESD performance (4 kV HBM) - all critical for battery-powered sensor front-ends and harsh-environment analog signal chains.

Technical Context

The LMV824IYDT integrates four independent amplifiers with a dedicated SHDN pin per device (not per channel), enabling system-level power gating. Its input stage supports common-mode voltage down to V_CC– – 0.2 V and up to V_CC+ – 1 V, with no phase reversal, while the rail-to-rail output drives ±150 mV from rails into 2 kΩ.

It features a stable unity-gain compensated architecture (60° phase margin, 10 dB gain margin) with 1.4–1.9 V/µs slew rate and 16–13 nV/√Hz input noise at 1 kHz/10 kHz. Shutdown mode reduces total quiescent current to ≤50 nA at 25°C, with <20 ns turn-off and 300 ns turn-on times measured at ±200 mV output swing.

Key Specifications

Pinout & Package

TSSOP-14 (Thin Shrink Small Outline Package, 4.4 mm × 5 mm, 0.65 mm pitch) with exposed pad thermally connected to V_CC– or left floating per STMicroelectronics layout guidance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TSV854IST, LMV824IYDT trades 220 µA higher quiescent current for 4.2 MHz more bandwidth and 1 mV lower offset - critical for high-fidelity sensor signal chains. Versus LMV844QMTX/NOPB, it adds integrated shutdown at no penalty to accuracy or speed, simplifying power architecture in space-constrained automotive modules.

Availability

LMV824IYDT is available at Aetrix Electronics and suitable for automotive signal conditioning, portable medical instrumentation, industrial data loggers, and active filtering requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMV824IYDT 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The LMV82x series belongs to ST's precision low-power op-amp product line, engineered specifically for automotive-grade signal conditioning and battery-constrained portable instrumentation where rail-to-rail operation, wide temperature stability, and integrated shutdown are mandatory.

FAQ

What is the maximum capacitive load the LMV824IYDT can drive while remaining stable?

The LMV824IYDT maintains ≥60° phase margin with up to 200 pF capacitive load when configured as a unity-gain follower, as confirmed by Figure 11 in the datasheet. For loads exceeding 200 pF, external series resistance (≥10 Ω) at the output is recommended to preserve stability without degrading step response beyond 10% overshoot.

Can the SHDN pin be left unconnected if shutdown functionality is not needed?

No - the SHDN pin must never be left floating. Per Section 4.7 of the datasheet, it must be tied either to V_CC+ (to enable all amplifiers) or V_CC– (to disable them). An unconnected SHDN pin risks erratic enable/disable behavior due to noise coupling, potentially causing output glitches or increased current consumption.

How does the input common-mode range affect single-supply operation with ground-referenced sensors?

The LMV824IYDT supports input voltages from V_CC– – 0.2 V (i.e., –0.2 V with V_CC– = GND) to V_CC+ – 1 V, enabling direct connection of ground-referenced sensors like thermocouples or bridge circuits without level-shifting. This eliminates DC error from input bias current flowing through pull-up resistors in traditional rail-based designs.

Is the exposed pad on the TSSOP-14 package electrically connected, and how should it be handled?

Yes - the exposed pad on the TSSOP-14 package is internally connected to V_CC–. STMicroelectronics recommends soldering it to a PCB copper pour tied to the V_CC– net to optimize thermal dissipation (R_thJA = 100°C/W) and reduce junction temperature rise. Leaving it floating increases thermal resistance by ~15°C/W and may degrade long-term reliability under continuous 125°C ambient conditions.