Texas Instruments LM2904AVQDRG4Q1

Overview

LM2904AVQDRG4Q1 from Texas Instruments is an AEC-Q100 Grade 1 qualified dual operational amplifier for automotive systems, featuring 3 V to 36 V supply range, 300 µA per-channel quiescent current (typical), 1.2 MHz unity-gain bandwidth, and rail-to-rail input common-mode range including ground - enabling direct low-side current sensing in battery management and brake control circuits.

For engineers reviewing the LM2904AVQDRG4Q1 datasheet, LM2904AVQDRG4Q1 pinout, LM2904AVQDRG4Q1 application, or LM2904AVQDRG4Q1 equivalent, key selection criteria include automotive-grade ESD robustness (±2 kV HBM, ±1.5 kV CDM), functional safety documentation support, low 2 mV max input offset voltage at 25°C, and integrated RF/EMI filtering for noise-immune operation in telematics and eCall modules.

Technical Context

The LM2904AVQDRG4Q1 belongs to the LM2904BA-Q1 variant family, distinguished by its 2 mV maximum input offset voltage (vs. 3 mV for LM2904B-Q1) and identical 300 µA typical supply current, 1.2 MHz GBW, and internal EMI/RF filtering. It operates across –40°C to +125°C with supply voltages up to 36 V and supports single- or split-supply configurations.

Its dual op-amp architecture features independent inputs and outputs, rail-to-rail input common-mode range down to V–, and output swing within 1.5 V of rails (sourcing) and 100 mV of V– (sinking at 50 µA), optimized for signal conditioning in harsh automotive environments where precision, stability, and noise immunity are critical.

Key Specifications

Pinout & Package

LM2904AVQDRG4Q1 is packaged in an 8-pin SOIC (D) with nominal body size 4.90 mm × 3.90 mm, RoHS-compliant and lead-free, suitable for automated SMT assembly and high-reliability automotive reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM2904BQDRQ1, LM2904AVQDRG4Q1 delivers tighter DC accuracy for precision sensing; compared with TSV912AQDR, it trades bandwidth for guaranteed automotive qualification, wider supply range, and integrated EMI filtering essential for powertrain and chassis systems.

Availability

LM2904AVQDRG4Q1 is available at Aetrix Electronics and suitable for automotive lighting control, body electronics modules, telematics units, and battery management systems requiring stable component supply across long production lifecycles and rigorous environmental validation.

Supply support for LM2904AVQDRG4Q1 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 deep expertise in automotive-grade IC design and manufacturing.

The LM2904-Q1 family was developed specifically for automotive signal conditioning, emphasizing AEC-Q100 compliance, ESD robustness, and performance stability across extreme temperatures and supply variations.

FAQ

What automotive qualification level does LM2904AVQDRG4Q1 meet?

LM2904AVQDRG4Q1 meets AEC-Q100 Grade 1 qualification, certified for operation from –40°C to +125°C ambient temperature with full HBM (±2 kV) and CDM (±1.5 kV) ESD ratings. This qualification is documented in TI's official LM2904BA-Q1 datasheet (SLOS414K, Rev K, April 2022), confirming its suitability for engine bay, chassis, and powertrain applications where thermal and electrical stress is highest. LM2904AVQDRG4Q1 is a specific tape-and-reel packaging variant of the LM2904BA-Q1 device.

How does LM2904AVQDRG4Q1 differ from LM2904BQDRQ1?

LM2904AVQDRG4Q1 is the LM2904BA-Q1 variant with 2 mV maximum input offset voltage at 25°C, while LM2904BQDRQ1 is the LM2904B-Q1 variant with 3 mV maximum VOS. Both share identical 300 µA typical quiescent current, 1.2 MHz GBW, 3 V–36 V supply range, integrated EMI filtering, and SOIC-8 packaging. The offset difference makes LM2904AVQDRG4Q1 preferred for high-accuracy current sensing in BMS and brake control, whereas LM2904BQDRQ1 suits cost-sensitive lighting or HVAC applications.

Can LM2904AVQDRG4Q1 operate from a single 5 V supply?

Yes, LM2904AVQDRG4Q1 supports single-supply operation from 5 V. Its common-mode input range extends to V– (ground), and output swings to within 1.5 V of V+ and 100 mV of V– at light loads - enabling direct interfacing with 5 V microcontrollers and ADCs. At 5 V supply, output swing is typically 0.1 V to 3.5 V with 10 kΩ load, sufficient for driving comparators or analog inputs in body control modules without level-shifting circuitry.

Does LM2904AVQDRG4Q1 include functional safety documentation?

Yes, LM2904AVQDRG4Q1 (as part of the LM2904BA-Q1 family) is designated "Functional Safety-Capable" by Texas Instruments, with supporting documentation available for ISO 26262 system development. This includes FIT rate data, failure mode effects analysis (FMEA), and diagnostic coverage guidance - enabling its use in ASIL-B compliant designs such as eCall activation circuits and passive safety sensor interfaces. Documentation is accessible via TI's product folder for LM2904BA-Q1.

What package type is used for LM2904AVQDRG4Q1?

LM2904AVQDRG4Q1 uses the 8-pin SOIC (D) package with nominal dimensions 4.90 mm × 3.90 mm, RoHS-compliant and lead-free. This is the standard automotive-qualified SOIC variant listed in TI's orderable addendum for LM2904BA-Q1, distinct from TSSOP or VSSOP options. The 'RG' suffix in the part number explicitly denotes the SOIC-8 package, and 'G4' indicates TI's green (lead-free) packaging standard.