component
LM3900DR
Public Made by Adomby adom
Texas Instruments Operational Amplifier, SOIC-14. Datasheet-verified pinout, 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
markdownLM3900DR
Texas Instruments · Operational Amplifier · SOIC-14
LM3900DR from Texas Instruments, in a SOIC-14. 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 | 1IN+ | input | Noninverting input of amplifier 1; an internal clamp transistor limits negative excursions to about -0.3 V and externally applied negative input current must be limited to approximately -1 mA (-100 µA at high temperature). |
| 2 | 2IN+ | input | Noninverting input of amplifier 2; an internal clamp transistor limits negative excursions to about -0.3 V and externally applied negative input current must be limited to approximately -1 mA (-100 µA at high temperature). |
| 3 | 2IN- | input | Inverting (current-summing/Norton) input of amplifier 2, presenting an input resistance of about 1 MΩ and combined with the mirrored noninverting-input current to set the output through the external feedback element. |
| 4 | 2OUT | output | Output of amplifier 2, capable of swinging from a low-level output voltage of 0.09-0.2 V (VOL, RL=2 kΩ) up to near VCC, with an output resistance of about 8 kΩ and short-circuit protection. |
| 5 | 1OUT | output | Output of amplifier 1, capable of swinging from a low-level output voltage of 0.09-0.2 V (VOL, RL=2 kΩ) up to near VCC, with an output resistance of about 8 kΩ and short-circuit protection. |
| 6 | 1IN- | input | Inverting (current-summing/Norton) input of amplifier 1, presenting an input resistance of about 1 MΩ and combined with the mirrored noninverting-input current to set the output through the external feedback element. |
| 7 | GND | power_in | Ground reference terminal; all device voltage values, except differential input voltages, are specified with respect to this network ground pin. |
| 8 | 3IN- | input | Inverting (current-summing/Norton) input of amplifier 3, presenting an input resistance of about 1 MΩ and combined with the mirrored noninverting-input current to set the output through the external feedback element. |
| 9 | 3OUT | output | Output of amplifier 3, capable of swinging from a low-level output voltage of 0.09-0.2 V (VOL, RL=2 kΩ) up to near VCC, with an output resistance of about 8 kΩ and short-circuit protection. |
| 10 | 4OUT | output | Output of amplifier 4, capable of swinging from a low-level output voltage of 0.09-0.2 V (VOL, RL=2 kΩ) up to near VCC, with an output resistance of about 8 kΩ and short-circuit protection. |
| 11 | 4IN- | input | Inverting (current-summing/Norton) input of amplifier 4, presenting an input resistance of about 1 MΩ and combined with the mirrored noninverting-input current to set the output through the external feedback element. |
| 12 | 4IN+ | input | Noninverting input of amplifier 4; an internal clamp transistor limits negative excursions to about -0.3 V and externally applied negative input current must be limited to approximately -1 mA (-100 µA at high temperature). |
| 13 | 3IN+ | input | Noninverting input of amplifier 3; an internal clamp transistor limits negative excursions to about -0.3 V and externally applied negative input current must be limited to approximately -1 mA (-100 µA at high temperature). |
| 14 | VCC | power_in | Positive supply voltage input, recommended 4.5 V to 32 V for single-supply operation of the LM3900 (absolute maximum 36 V) with a device (four-amplifier) no-load supply current of 6.2 mA typical, 10 mA maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
LM3900DR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
lm3900dr-etched.step/lm3900dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3900dr.step/lm3900dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (17 pp, sha256
84f315785e7561f3, retrieved 2026-09-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).