component
LMV321-TR
Public Made by Adomby adom
Gainsil Operational Amplifier, SOT-23-5. Pinout extracted from 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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Contents
README
markdownLMV321-TR
Gainsil · Operational Amplifier · SOT-23-5
LMV321-TR from Gainsil, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IN+ | input | Non-inverting analog input. Rail-to-rail capable with common-mode range extending 100mV beyond the supply rails (VSS-0.1V to VDD+0.1V). Input bias current 1pA typical. |
| 2 | VSS | power_in | Negative supply / ground. Tie to ground for single-supply operation (2.1V to 5.5V referenced to VDD) or to the negative rail for dual-supply operation (±1.05V to ±2.75V). |
| 3 | IN- | input | Inverting analog input. Rail-to-rail capable with common-mode range extending 100mV beyond the supply rails. Input offset voltage 3.5mV max at 25°C. |
| 4 | OUT | output | Amplifier output. Rail-to-rail swing (typically within 5mV of the rails at RL>100kΩ, 30mV at 10kΩ). Sources 84mA / sinks 75mA typical short-circuit current. |
| 5 | VDD | power_in | Positive supply, 2.1V to 5.5V (absolute max 7.5V VDD-VSS). Bypass with a 0.1μF ceramic capacitor placed close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Gainsil |
| Package | SOT-23-5 |
| Category | Op-amp/Cmp |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
LMV321-TRLMV321-TRSR
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | 0.4 | 3.5 | mV | VCM = VS/2, +25℃ | 3 | |
| Input Offset Voltage (over temperature) | VOS | 5.6 | mV | VCM = VS/2, -40℃ to +85℃ | 3 | ||
| Common-Mode Rejection Ratio | CMRR | 62 | 70 | dB | VS = 5.5V, VCM = -0.1V to 4V, +25℃ | 3 | |
| Common-Mode Rejection Ratio (over temperature) | CMRR | 62 | dB | VS = 5.5V, VCM = -0.1V to 4V, -40℃ to +85℃ | 3 | ||
| Common-Mode Rejection Ratio | CMRR | 56 | 68 | dB | VS = 5.5V, VCM = -0.1V to 5.6V, +25℃ | 3 | |
| Common-Mode Rejection Ratio (over temperature) | CMRR | 55 | dB | VS = 5.5V, VCM = -0.1V to 5.6V, -40℃ to +85℃ | 3 | ||
| Open-Loop Voltage Gain | AOL | 70 | 80 | dB | RL = 5kΩ, VO = +0.1V to +4.9V, +25℃ | 3 | |
| Open-Loop Voltage Gain (over temperature) | AOL | 70 | dB | RL = 5kΩ, VO = +0.1V to +4.9V, -40℃ to +85℃ | 3 | ||
| Open-Loop Voltage Gain | AOL | 94 | 100 | dB | RL = 10kΩ, VO = +0.1V to +4.9V, +25℃ | 3 | |
| Open-Loop Voltage Gain (over temperature) | AOL | 85 | dB | RL = 10kΩ, VO = +0.1V to +4.9V, -40℃ to +85℃ | 3 | ||
| Output Voltage Swing from Rail (high) | VOH | 4.99 | 4.997 | V | RL = 100kΩ, +25℃ | 3 | |
| Output Voltage Swing from Rail (high, over temperature) | VOH | 4.98 | V | RL = 100kΩ, -40℃ to +85℃ | 3 | ||
| Output Voltage Swing from Rail (low) | VOL | 3 | 10 | mV | RL = 100kΩ, +25℃ | 3 | |
| Output Voltage Swing from Rail (low, over temperature) | VOL | 20 | mV | RL = 100kΩ, -40℃ to +85℃ | 3 | ||
| Output Voltage Swing from Rail (high) | VOH | 4.97 | 4.992 | V | RL = 10kΩ, +25℃ | 3 | |
| Output Voltage Swing from Rail (high, over temperature) | VOH | 4.96 | V | RL = 10kΩ, -40℃ to +85℃ | 3 | ||
| Output Voltage Swing from Rail (low) | VOL | 8 | 30 | mV | RL = 10kΩ, +25℃ | 3 | |
| Output Voltage Swing from Rail (low, over temperature) | VOL | 40 | mV | RL = 10kΩ, -40℃ to +85℃ | 3 | ||
| Output Current (source) | ISOURCE | 60 | 84 | mA | RL = 10Ω to VS/2, +25℃ | 3 | |
| Output Current (source, over temperature) | ISOURCE | 45 | mA | RL = 10Ω to VS/2, -40℃ to +85℃ | 3 | ||
| Output Current (sink) | ISINK | 60 | 75 | mA | RL = 10Ω to VS/2, +25℃ | 3 | |
| Output Current (sink, over temperature) | ISINK | 45 | mA | RL = 10Ω to VS/2, -40℃ to +85℃ | 3 | ||
| Operating Voltage Range (min) | 2.1 | V | +25℃ | 3 | |||
| Operating Voltage Range (min, over temperature) | 2.5 | V | -40℃ to +85℃ | 3 | |||
| Operating Voltage Range (max) | 5.5 | V | +25℃ | 3 | |||
| Operating Voltage Range (max, over temperature) | 5.5 | V | -40℃ to +85℃ | 3 | |||
| Power Supply Rejection Ratio | PSRR | 60 | 82 | dB | VS = +2.5V to +5.5V, VCM = +0.5V, +25℃ | 3 | |
| Power Supply Rejection Ratio (over temperature) | PSRR | 58 | dB | VS = +2.5V to +5.5V, VCM = +0.5V, -40℃ to +85℃ | 3 | ||
| Common-Mode Voltage Range | VCM | -0.1 | 5.6 | V | VS = 5.5V | 3 | |
| Power Supply Voltage (VDD to Vss) | -0.5 | 7.5 | V | 2 | |||
| PDB Input Voltage | 7 | V | 2 | ||||
| Operating Temperature Range | -40 | 125 | °C | 2 | |||
| Junction Temperature | 160 | °C | 2 | ||||
| Storage Temperature Range | -55 | 150 | °C | 2 | |||
| Lead Temperature | 260 | °C | soldering, 10 sec | 2 | |||
| ESD Susceptibility HBM | 6 | KV | 2 | ||||
| ESD Susceptibility MM | 300 | V | 2 | ||||
| Package Thermal Resistance, SOT23-5 | θJA | 190 | °C/W | TA=+25℃ | 2 | ||
| Input Bias Current | IB | 1 | pA | 3 | |||
| Input Offset Current | IOS | 1 | pA | 3 | |||
| Input Offset Voltage Drift | ∆VOS/∆T | 2.7 | µV/℃ | 3 | |||
| Quiescent Current / Amplifier | IQ | 40 | µA | 3 | |||
| Gain-Bandwidth Product | GBP | 1 | MHz | CL = 100pF | 3 | ||
| Slew Rate | SR | 0.6 | V/µs | G = +1, 2V Output Step, CL = 100pF | 3 | ||
| Settling Time to 0.1% | tS | 5 | µs | G = +1, 2V Output Step, CL = 100pF | 3 | ||
| Overload Recovery Time | 2.6 | µs | VIN ·Gain = VS, CL = 100pF | 3 | |||
| Voltage Noise Density | en | 27 | nV / Hz | f = 1kHz | 3 | ||
| Voltage Noise Density | en | 20 | nV / Hz | f = 10kHz | 3 |
CAD (KiCad official)
- Symbol:
LMV321-TR - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
lmv321-tr-etched.step/lmv321-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmv321-tr.step/lmv321-tr.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
lmv321-tr.step |
85 KB | You want the bare part, or you mark your own boards. |
lmv321-tr-etched.step |
1.3 MB | You want the part with LMV321-TR already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 350 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Gainsil datasheet (12 pp, sha256
3e4d4c64aa5067d2, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).