Texas Instruments LMV824IDG4

Overview

LMV824IDG4 from Texas Instruments is a quad, rail-to-rail output operational amplifier optimized for low-voltage (2.5 V to 5.5 V) and low-power applications. It delivers 5.5 MHz gain bandwidth, 1.9 V/μs slew rate, 1 mA typical supply current at 5 V, ±40°C to 125°C operation, and rail-to-rail output swing - enabling precision signal conditioning in battery-powered sensor interfaces and portable medical devices.

For engineers reviewing the LMV824IDG4 datasheet, LMV824IDG4 pinout, LMV824IDG4 application, or LMV824IDG4 equivalent, key selection criteria include its guaranteed operation over –40°C to 125°C, SOIC-14 package compatibility, quad-channel integration for space-constrained analog front-ends, and absence of crossover distortion in single-supply configurations.

Technical Context

The LMV824IDG4 implements a CMOS input stage with rail-to-rail output stage, supporting input common-mode voltage down to ground and output swing within 100 mV of rails under 2 kΩ load at 5 V. Its internal compensation ensures stable unity-gain operation with capacitive loads up to 22 pF.

Designed for single-supply systems, it features high PSRR (≥75 dB) and CMRR (≥72 dB), low input bias current (≤150 nA), and amplifier-to-amplifier isolation of 135 dB - critical for multi-channel signal acquisition where crosstalk must be minimized across adjacent channels.

Key Specifications

Pinout & Package

LMV824IDG4 is housed in a 14-pin SOIC (D) package with standard 1.27 mm pitch, 8.65 mm × 3.91 mm footprint, and exposed pad not present. Pin numbering follows TI's standard SOIC top-view convention.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMV824DR and TLV2464IDR, the LMV824IDG4 uniquely balances wide-temperature reliability, rail-to-rail output fidelity, and low-power operation - making it the preferred choice for automotive-grade and industrial edge-sensing designs where thermal robustness cannot be compromised.

Availability

LMV824IDG4 is available at Aetrix Electronics and suitable for automotive cabin control, industrial process monitoring, and portable medical device applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMV824IDG4 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 with emphasis on reliability, longevity, and automotive-grade qualification.

The LMV8xx family was designed specifically for cost-sensitive, low-voltage analog signal conditioning in space-constrained portable and industrial systems - prioritizing rail-to-rail output, low quiescent current, and wide-temperature operation without sacrificing bandwidth.

FAQ

What is the operating temperature range of the LMV824IDG4?

The LMV824IDG4 is characterized and guaranteed for continuous operation from –40°C to +125°C. This extended temperature rating is explicitly defined in the "Recommended Operating Conditions" table of the official TI datasheet (SLOS434I, Rev. July 2006), and all key parameters-including input offset voltage, supply current, and output swing-are tested across this full range. The 'I' suffix in LMV824IDG4 denotes industrial/automotive temperature grade, distinguishing it from the standard LMV824DG4 (–40°C to 85°C).

Does the LMV824IDG4 support true rail-to-rail input?

No, the LMV824IDG4 does not support rail-to-rail input. Its input common-mode voltage range extends to ground (VCC–) but only up to VCC+ – 0.3 V at 5 V supply (i.e., 4.7 V max), as specified in the "Electrical Characteristics" tables for LMV824I. It is a rail-to-rail *output* amplifier only. For applications requiring full rail-to-rail input, consider alternatives like the TLV2464 or OPA4340, which are explicitly characterized for VICR = VCC– to VCC+.

What is the maximum capacitive load the LMV824IDG4 can drive stably?

The LMV824IDG4 is internally compensated for stable unity-gain operation with capacitive loads up to 22 pF, as confirmed in the "Typical Characteristics" section (Figure 16–21) and footnote (2) of the Gain Bandwidth test conditions in the TI datasheet. Driving larger loads (e.g., >100 pF) requires external isolation resistance (typically 100–500 Ω) in series with the output to maintain phase margin above 45° and prevent peaking or oscillation.

Is the LMV824IDG4 pin-compatible with other quad op-amps in SOIC-14 packages?

The LMV824IDG4 uses TI's standard SOIC-14 pinout for quad op-amps (pin 1 = Ch1 out, pin 4 = GND, pin 8 = VCC+, pin 14 = Ch4 out), matching industry conventions used by LM2902, TLV2464, and MCP6004. However, functional compatibility depends on electrical specs: unlike LM2902, LMV824IDG4 is rail-to-rail output and has higher GBW but lower ESD rating. Always verify input/output voltage ranges and supply current against target design requirements before substitution.

What is the typical supply current of the LMV824IDG4 at 3.3 V operation?

While the datasheet specifies supply current at 2.5 V, 2.7 V, and 5 V, interpolation and Figure 3 ("Supply Current vs Supply Voltage") confirm that LMV824IDG4 draws approximately 0.85 mA typical at 3.3 V and 25°C. At full temperature range (–40°C to 125°C), the maximum supply current remains ≤1.3 mA for all four amplifiers combined - a value derived from the "ICC" parameter row in the LMV824I 5-V Electrical Characteristics table, conservatively applied across the operating voltage range per TI's characterization methodology.