component
LM4811MMX
Public Made by Adomby adom
Texas Instruments Audio Power OpAmps, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM4811MMX
Texas Instruments · Audio Power OpAmps · MSOP-10
LM4811MMX from Texas Instruments, in a MSOP-10. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VOUT1 | output | Channel 1 amplifier output, AC-coupled to the load through output capacitor Co. |
| 2 | VIN1 | input | Channel 1 audio input, AC-coupled through Ci with internal input resistor Ri of at least 33kΩ minimum. |
| 3 | Bypass | passive | Half-supply bypass node; capacitor CB of 1µF or larger recommended, sets turn-on ramp and affects PSRR and click and pop. |
| 4 | CLOCK | input | Digital volume clock input; each rising edge steps gain by 3dB, logic high at least 1.4V and logic low at most 0.4V. |
| 5 | GND | power_in | Ground reference for the device. |
| 6 | UP/DN | input | Volume direction input; logic high raises gain 3dB per clock rising edge and logic low lowers it, with 1.4V minimum high and 0.4V maximum low thresholds. |
| 7 | SHUTDOWN | input | Active-high shutdown input; logic high of at least 1.4V enters micropower shutdown (0.3µA typ) and should be tied to a fixed voltage, not left floating. |
| 8 | VIN2 | input | Channel 2 audio input, AC-coupled through Ci with internal input resistor Ri of at least 33kΩ minimum. |
| 9 | VOUT2 | output | Channel 2 amplifier output, AC-coupled to the load through output capacitor Co. |
| 10 | VDD | power_in | Positive supply, 2.0V to 5.5V operating range, to be bypassed with a capacitor placed close to the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | MSOP-10 |
| Category | Operational Amplifier/Comparator |
| Pins | 10 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage (operating) | VDD | 2 | 5.5 | V | 2.0V ≤ VCC ≤ 5.5V | 3 | |
| Operating Temperature Range | TA | -40 | 85 | °C | TMIN ≤ TA ≤ TMAX | 3 | |
| Supply Voltage | VDD | 6 | V | 3 | |||
| Storage Temperature | -65 | 150 | °C | 3 | |||
| Junction Temperature | TJ | 150 | °C | 3 | |||
| ESD Susceptibility (human body model) | 2.5 | kV | 100pF discharged through 1.5kΩ | 3 | |||
| ESD Susceptibility (machine model) | 200 | V | 200pF cap, no series resistor | 3 | |||
| Thermal Resistance Junction-Ambient DGS0010A | θJA | 194 | °C/W | DGS0010A | 3 | ||
| Thermal Resistance Junction-Case DGS0010A | θJC | 52 | °C/W | DGS0010A | 3 | ||
| Supply Current | IDD | 1.3 | 3 | mA | VDD=5V, VIN = 0V, IO = 0A | 3 | |
| Output Offset Voltage | VOS | 4 | 50 | mV | VDD=5V, VIN = 0V | 3 | |
| Input Voltage High (CLOCK, UP/DN, SHUTDOWN) | VIH | 1.4 | V | VDD=5V | 3 | ||
| Input Voltage Low (CLOCK, UP/DN, SHUTDOWN) | VIL | 0.4 | V | VDD=5V | 4 | ||
| Input Voltage High (CLOCK, UP/DN, SHUTDOWN) | VIH | 1.4 | V | VDD=3.3V | 4 | ||
| Input Voltage High (CLOCK, UP/DN, SHUTDOWN) | VIH | 1.4 | V | VDD=2.6V | 5 | ||
| Input Voltage Low (CLOCK, UP/DN, SHUTDOWN) | VIL | 0.4 | V | VDD=2.6V | 5 | ||
| Shutdown Current | ISD | 0.3 | µA | VDD=5V, VIN = 0V | 3 | ||
| Output Power RL=16Ω | PO | 105 | mW | VDD=5V, 0.1% THD+N; f = 1kHz | 3 | ||
| Output Power RL=32Ω | PO | 70 | mW | VDD=5V, 0.1% THD+N; f = 1kHz | 3 | ||
| Total Harmonic Distortion | THD+N | 0.3 | % | VDD=5V, PO = 50mW, RL = 32Ω, f = 20Hz to 20kHz | 3 | ||
| Channel Separation | Crosstalk | 100 | dB | VDD=5V, RL = 32Ω; f = 1kHz; PO = 70mW | 3 | ||
| Power Supply Rejection Ratio | PSRR | 60 | dB | VDD=5V, CB = 1.0µF, VRIPPLE = 100mVPP, f = 217Hz | 3 | ||
| Digital Volume Minimum Gain | -33 | dB | Input referred minimum gain | 4 | |||
| Digital Volume Maximum Gain | 12 | dB | Input referred maximum gain | 4 | |||
| Digital Volume Stepsize | 3 | dB | All 16 discrete steps | 4 | |||
| Stepsize Error | 0.3 | dB | All 16 discrete steps, ±0.3 typ | 4 | |||
| Channel-to-Channel Volume Tracking Error | 0.15 | dB | All gain settings from -33dB to +12dB | 4 | |||
| Shutdown Attenuation | -100 | dB | VDD=5V, Shutdown mode active | 4 | |||
| Supply Current | IDD | 1.1 | mA | VDD=3.3V, VIN = 0V, IO = 0A | 4 | ||
| Supply Current | IDD | 1 | mA | VDD=2.6V, VIN = 0V, IO = 0A | 5 |
CAD (KiCad official)
- Symbol:
LM4811MMX - Footprint:
Package_SO:MSOP-10_3x3mm_P0.5mm - 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files:
lm4811mmx-etched.step/lm4811mmx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4811mmx.step/lm4811mmx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (26 pp, sha256
fc97e035498e5765, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).