component
MAX3120EUA+T
Public Made by Adomby adom
Analog Devices Inc Maxim Integrated Ethernet Transceivers, MSOP-8. 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
markdownMAX3120EUA+T
Analog Devices Inc Maxim Integrated · Ethernet Transceivers · MSOP-8
MAX3120EUA+T from Analog Devices Inc Maxim Integrated, in a MSOP-8. 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 | TXD | input | IR transmitter TTL/CMOS data input where high turns the LED on, rated -0.3V to +6V referred to GND. |
| 2 | VCC | power_in | Supply voltage operated from +3.0V to +5.5V, with an absolute maximum of +6V referred to GND. |
| 3 | GND | power_in | Ground reference that connects the PIN diode anode and must be tied to PGND. |
| 4 | PINC | input | PIN diode cathode input that must be kept short and separated from noisy traces, with a maximum rating of 10mA. |
| 5 | SHDN | input | Active-low shutdown input (rated -0.3V to +6V referred to GND) that reduces shutdown supply current to 10nA typical. |
| 6 | PGND | power_in | Power ground for the IR LED driver, rated -0.1V to +0.1V referred to GND and connected to GND. |
| 7 | LEDC | output | LED driver output that sinks the IR LED cathode current, rated 200mA continuous and 500mA repetitive pulsed (<90µs, duty cycle <20%). |
| 8 | RXD | output | IR receiver TTL/CMOS data output that pulses low for each IR input pulse, rated -0.3V to (VCC + 0.3V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | MSOP-8 |
| Category | Interface |
| Pins | 8 |
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 (recommended operating range) | VCC | 3 | 5.5 | V | TA = TMIN to TMAX | 2 | |
| Operating temperature range (MAX3120E_A, EUA variant) | -40 | 85 | °C | MAX3120E_A | 2 | ||
| Supply voltage (absolute maximum) | VCC | -0.3 | 6 | V | Referred to GND | 2 | |
| TXD, SHDN, LEDC voltage | -0.3 | 6 | V | Referred to GND | 2 | ||
| RXD voltage | -0.3 | V | Referred to GND; upper limit printed as (VCC + 0.3V) | 2 | |||
| PGND voltage | -0.1 | 0.1 | V | Referred to GND | 2 | ||
| PINC current | 10 | mA | 2 | ||||
| Continuous LEDC current | 200 | mA | 2 | ||||
| Repetitive pulsed LEDC current | 500 | mA | <90µs, duty cycle <20% | 2 | |||
| Junction temperature | 150 | °C | 2 | ||||
| Storage temperature range | -65 | 160 | °C | 2 | |||
| Lead temperature | 300 | °C | Soldering, 10 sec | 2 | |||
| Supply current | ICC | 120 | 200 | µA | VCC = +3.0V to +5.5V, TA = TMIN to TMAX | 2 | |
| Shutdown supply current | ICC(SHDN) | 0.01 | 1 | µA | VCC = +3.0V to +5.5V, TA = TMIN to TMAX | 2 | |
| Input leakage current | ILEAK | -1 | 1 | µA | VCC = +3.0V to +5.5V, TA = TMIN to TMAX | 2 | |
| Input logic threshold low | VIL | 0.8 | V | VCC = +3.0V to +5.5V, TA = TMIN to TMAX | 2 | ||
| Output voltage low | VOL | 0.1 | 0.4 | V | ISINK = 200µA | 2 | |
| Supported data rates | 2.4 | 115.2 | kbps | 2 | |||
| Input current sensitivity | 0.0002 | 6 | mA | (Note 3) | 2 | ||
| Transmitter rise time | tr | 20 | 600 | ns | 10% to 90% of 200mA drive current | 3 | |
| Transmitter fall time | tf | 20 | 600 | ns | 90% to 10% of 200mA drive current | 3 | |
| Transmitter output resistance (VCC = 5.0V) | 1.15 | 2 | Ω | IOUT = 200mA, VCC = 5.0V | 3 | ||
| Transmitter output resistance (VCC = 3.3V) | 0.9 | 1.6 | Ω | IOUT = 200mA, VCC = 3.3V | 3 | ||
| Off-leakage current | 0.01 | 10 | µA | 3 |
CAD (KiCad official)
- Symbol:
MAX3120EUA+T - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
max3120eua-t-etched.step/max3120eua-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max3120eua-t.step/max3120eua-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices Inc Maxim Integrated datasheet (8 pp, sha256
5664c409a0dac48b, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).