LM2904AQM8-13

The LM2904AQM8-13 is Texas Instruments’ automotive-qualified, dual operational amplifier in an 8-pin AQM/SOIC package. It provides two low-power op-amps in one device for general analog signal conditioning.
Key points
- Dual op-amp, low power
- Wide supply range: 3 V to 30 V (single or dual supply)
- Input common-mode includes ground; output can swing close to ground with light loads (not rail-to-rail)
- Unity-gain stable; suitable for buffers, amplifiers, filters
- Automotive grade (AQM) with enhanced temperature robustness for automotive/industrial use
- Package: 8-pin AQM (SOIC)
Common applications
- Sensor front-ends, transducer amplification
- Active filters, buffering and voltage amplification in automotive/industrial electronics
For exact specs (offset, bias current, slew rate, GBW) and the precise temperature range, consult the TI LM2904AQM8-13 datasheet.

Direct equivalents: any LM2904A in the same 8-pin package (e.g., TI LM2904A, STMicroelectronics LM2904A, ON Semiconductor/Nexperia LM2904A). Close, pin‑compatible substitutes (verify specs): LM358, LMV358 or other dual, single‑supply op‑amps. Always compare input/output ranges, offset, supply and AEC‑Q100 (automotive) ratings before substituting.

Key features of LM2904AQM8-13 (dual op-amp, automotive grade in an 8-pin AQM package):
- Dual general-purpose operational amplifiers
- Automotive-grade variant in 8-pin AQM8 package
- Low power consumption per amplifier
- Wide supply voltage range: typically 3 V to 32 V (single supply)
- Input common-mode range includes ground
- Output can swing close to ground; near-rail performance with appropriate load
- Unity-gain stable (suitable for voltage followers)
- Internally compensated for stable closed-loop operation
- Low input bias current and low offset voltage (typical for bipolar inputs)
- Protective features: short-circuit/overload protection on outputs
- Extended automotive temperature range (substantiated for AQ variants)
Applications include sensors, audio, and automotive control circuits requiring a robust, low-power dual op-amp.

Pin count: 8 pins (QFN/VSSOP 8-pin package).
Function: Dual low-power operational amplifier for single-supply applications (LM2904A). Typical pinout (pin number → function):
1 – Output A
2 – Inverting input A (–)
3 – Non‑inverting input A (+)
4 – V– (GND, negative supply)
5 – Non‑inverting input B (+)
6 – Inverting input B (–)
7 – Output B
8 – V+ (positive supply)
Notes: Each amp provides low-power operation, input common‑mode including ground, and output that can swing close to ground — intended for general-purpose signal conditioning.

Manufacturer: Texas Instruments (TI).
Type of company: TI is a U.S.-based global semiconductor company—an integrated device manufacturer that designs, develops and sells analog and mixed-signal ICs, power-management devices and embedded processors (including op amps such as the LM2904 family).

LM2904AQM8-13 is a low-power, dual operational amplifier in an 8-pin package, suitable for single-supply operation and automotive/industrial use. Typical applications include:
- Sensor signal conditioning: amplify/scale thermistors, RTDs, photodiodes, strain gauges, pressure sensors
- ADC front-ends: buffering and impedance matching before data converters
- Active filtering: low-pass, high-pass, band-pass, and Sallen–Key filters
- Small-signal audio and microphone preamplifiers
- Control loops and analog signal processing: integrators, differentiators, summing junctions
It's ideal for portable/ rugged environments with moderate bandwidth and gain requirements.

An 8-pin surface-mount package: SOIC (SMT) with the M8 code (automotive-qualified LM2904AQ).