STMicroelectronics LMV822AIYDT

Overview

LMV822AIYDT from STMicroelectronics is a dual, rail-to-rail output operational amplifier with shutdown control, designed for precision signal conditioning in low-voltage, power-constrained systems. It delivers 5.5 MHz gain bandwidth, 0.8 mV max input offset voltage at 25°C, 400 µA max supply current per channel at 5 V, and operates from 2.5 V to 5.5 V across –40°C to +125°C - enabling use in automotive sensor front-ends and portable medical monitors.

For engineers reviewing the LMV822AIYDT datasheet, LMV822AIYDT pinout, LMV822AIYDT application, or LMV822AIYDT equivalent, key selection considerations include its shutdown-enabled ultra-low quiescent current (50 nA), guaranteed rail-to-rail output swing into 2 kΩ, enhanced offset accuracy over temperature (2 mV max from –40°C to +125°C), and SO-8 package compatibility with standard dual op-amp footprints.

Technical Context

The LMV822AIYDT implements a CMOS-input, rail-to-rail output architecture optimized for low-voltage operation. Its input common-mode range extends from V_CC– – 0.2 V to V_CC+ – 1 V, supporting ground-sensing capability without phase reversal. The internal shutdown logic asserts high-impedance output when SHDN is pulled to V_CC–, with turn-on/turn-off times of 300 ns and 20 ns respectively.

It features a unity-gain stable design with 60° phase margin and 10 dB gain margin at 5 V, delivering 1.4–1.9 V/µs slew rate and <0.001% THD+N at 1 kHz. Input-referred noise is 13–16 nV/√Hz at 10 kHz, and CMRR reaches 90 dB typical at 5 V, making it suitable for high-fidelity analog signal paths in harsh environments.

Key Specifications

Pinout & Package

LMV822AIYDT is housed in an SO-8 (Small Outline) package with exposed pad (not electrically connected), measuring 4.9 mm × 6.0 mm × 1.75 mm. Pin 1 is marked by a notch or dot; the device is lead-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TSV852IST and LMV822IDT, the LMV822AIYDT uniquely combines automotive qualification, sub-millivolt offset accuracy, and integrated shutdown - making it the only option among the three that meets stringent requirements for uncalibrated, wide-temperature, low-power automotive sensor interfaces.

Availability

LMV822AIYDT is available at Aetrix Electronics and suitable for automotive signal conditioning, portable medical instrumentation, and industrial thermocouple interface circuits requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMV822AIYDT 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 microcontrollers, analog ICs, power management devices, and MEMS sensors for automotive, industrial, and consumer markets.

The LMV82x series belongs to ST's precision analog portfolio, engineered specifically for high-accuracy, low-voltage signal conditioning in harsh environments - emphasizing rail-to-rail operation, low offset drift, and AEC-Q100 compliance for automotive electronics.

FAQ

What is the recommended PCB layout for LMV822AIYDT to ensure stability?

STMicroelectronics specifies placement of 10 nF ceramic decoupling capacitors as close as possible to both V_CC+ (Pin 8) and V_CC– (Pin 4), with short, low-inductance traces to ground. Avoid routing noisy digital signals near input pins, and use a solid ground plane beneath the device. The exposed pad (if present) may be left floating or tied to V_CC–; it is not internally connected.

Does LMV822AIYDT support true rail-to-rail input operation?

No - LMV822AIYDT features rail-to-rail *output* swing but has a limited input common-mode range of V_CC– – 0.2 V to V_CC+ – 1 V. While it accepts inputs down to ground (enabling single-supply ground-referenced sensing), it cannot accept voltages within 1 V of V_CC+. This is confirmed in Table 3 and Section 4.2 of the datasheet.

Can the shutdown pin (Pin 1) be driven by a microcontroller GPIO?

Yes - the SHDN pin accepts logic-level inputs: VIH ≥ V_CC+ – 0.5 V and VIL ≤ 0.5 V. With V_CC+ = 3.3 V, a standard 3.3 V GPIO can directly drive it high (enable) or low (disable). Input leakage is ≤10 pA, imposing negligible load. Never leave SHDN floating; tie unused states to V_CC+ or V_CC– via pull-up/down resistors.

How does LMV822AIYDT's phase margin change with capacitive load?

Phase margin remains ≥60° for CL ≤ 40 pF (Figure 9–11), but degrades to ~45° at 100 pF and further at 200 pF. Figure 12 shows phase margin drops below 40° when sourcing >15 mA into reactive loads. For stability with >50 pF loads, ST recommends adding a small series resistor (10–50 Ω) between output and load capacitance, per Section 4.3 and Figure 13.