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MAX3081ECSA+T
Public Made by Adomby adom
Analog Devices Inc Maxim Integrated RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MAX3081ECSA+T
Analog Devices Inc Maxim Integrated · RS-485 / RS-422 ICs · SOIC-8
MAX3081ECSA+T from Analog Devices Inc Maxim Integrated, in a SOIC-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 | VCC | power_in | Positive supply, 4.75V ≤ VCC ≤ 5.25V. |
| 2 | RO | output | Receiver output: when RE is low and A − B ≥ −50mV, RO is high; when A − B ≤ −200mV, RO is low; RO is high for open or shorted inputs. |
| 3 | DI | input | Driver input: a high on DI forces non-inverting output Y high and inverting output Z low, and a low on DI forces Y low and Z high. |
| 4 | GND | power_in | Ground. |
| 5 | Y | output | Noninverting driver output. |
| 6 | Z | output | Inverting driver output. |
| 7 | B | input | Inverting receiver input. |
| 8 | A | input | Noninverting receiver input. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | SOIC-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 |
|---|---|---|---|---|---|---|---|
| Differential Driver Output (RS-422, R = 50Ω) | VOD2 | 2 | V | Figure 5, R = 50Ω (RS-422) | 2 | ||
| Differential Driver Output (RS-485, R = 27Ω) | VOD2 | 1.5 | V | Figure 5, R = 27Ω (RS-485) | 2 | ||
| Differential Driver Output (No Load) | VOD1 | 5 | V | Figure 5 | 2 | ||
| Change-in-Magnitude of Differential Output Voltage | ΔVOD | 0.2 | V | Note 2 | 2 | ||
| Driver Common-Mode Output Voltage | VOC | 3 | V | 2 | |||
| Change-in-Magnitude of Common-Mode Voltage | ΔVOC | 0.2 | V | Note 2 | 2 | ||
| Input High Voltage (DE, DI, RE) | VIH1 | 2 | V | 2 | |||
| Input Low Voltage (DE, DI, RE) | VIL1 | 0.8 | V | 2 | |||
| DI Input Hysteresis | VHYS | 100 | mV | 2 | |||
| Input Current | IIN1 | -2 | 2 | µA | 2 | ||
| Receiver Output Low Voltage | VOL | 0.4 | V | IO = 4mA, VID = -200mV | 3 | ||
| Receiver Input Hysteresis | ΔVTH | 25 | mV | 3 | |||
| Receiver Differential Threshold Voltage | VTH | -200 | -125 | -50 | mV | -7V ≤ VCM ≤ 12V | 3 |
| Three-State Output Current at Receiver | IOZR | -1 | 1 | µA | 0V ≤ VRO ≤ VCC | 3 | |
| ESD Protection for Y, Z, A, B | -15 | 15 | kV | Human Body Model | 3 | ||
| Driver Input-to-Output (tDPLH) | tDPLH | 500 | 2030 | 2600 | ns | Figures 7 and 9, RDIFF = 54Ω, CL1 = CL2 = 100pF | 4 |
| Driver Input-to-Output (tDPHL) | tDPHL | 500 | 2030 | 2600 | ns | Figures 7 and 9, RDIFF = 54Ω, CL1 = CL2 = 100pF | 4 |
| Driver Rise or Fall Time | tDR, tDF | 667 | 1320 | 2500 | ns | Figures 7 and 9, RDIFF = 54Ω, CL1 = CL2 = 100pF | 4 |
| Driver Output Skew /tDPLH - tDPHL/ | tDSKEW | -200 | -3 | 200 | ns | Figures 7 and 9, RDIFF = 54Ω, CL1 = CL2 = 100pF | 4 |
| Receiver Differential Skew /tRPLH - tRPHL/ | tRSKD | -30 | 3 | 30 | ns | Figures 11 and 13; /VID/ ≥ 2.0V; rise and fall time of VID ≤ 15ns | 4 |
| Receiver Input to Output | tRPLH, tRPHL | 127 | 200 | ns | Figures 11 and 13; /VID/ ≥ 2.0V; rise and fall time of VID ≤ 15ns | 4 | |
| Driver Disable Time from Low | tDLZ | 100 | ns | 4 | |||
| Driver Disable Time from High | tDHZ | 100 | ns | 4 | |||
| Driver Enable to Output Low | tDZL | 3500 | ns | 4 | |||
| Driver Enable to Output High | tDZH | 3500 | ns | 4 | |||
| Receiver Enable to Output Low | tRZL | 20 | 50 | ns | 4 | ||
| Receiver Enable to Output High | tRZH | 20 | 50 | ns | 4 | ||
| Receiver Disable Time from Low | tRLZ | 20 | 50 | ns | 4 | ||
| Receiver Disable Time from High | tRHZ | 20 | 50 | ns | 4 | ||
| Maximum Data Rate (SRL unconnected) | fMAX | 115 | kbps | 4 | |||
| Supply voltage tolerance (test condition VCC = +5V) | VCC | -5 | 5 | % | VCC = +5V ±5% | 2 | |
| Operating Temperature Range (MAX308_EC) | TA | 0 | 70 | °C | Commercial grade (MAX308_EC__) | 2 | |
| Supply Voltage | VCC | 7 | V | 2 | |||
| Control Input Voltage (RE, DE) | -0.3 | V | Upper limit printed as VCC + 0.3V | 2 | |||
| Special Input Voltage (H/F, SRL, TXP, RXP) | -0.3 | V | Upper limit printed as VCC + 0.3V | 2 | |||
| Driver Input Voltage (DI) | -0.3 | V | Upper limit printed as VCC + 0.3V | 2 | |||
| Driver Output Voltage (A, B, Y, Z) | -13 | 13 | V | 2 | |||
| Receiver Input Voltage (A, B) | -13 | 13 | V | 2 | |||
| Receiver Input Voltage, Full Duplex (A, B) | -25 | 25 | V | 2 | |||
| Receiver Output Voltage (RO) | -0.3 | V | Upper limit printed as VCC + 0.3V | 2 | |||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 2 | ||
| Lead Temperature (soldering, 10s) | 300 | °C | 10s soldering | 2 |
CAD (KiCad official)
- Symbol:
MAX3081ECSA+T - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
max3081ecsa-t-etched.step/max3081ecsa-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max3081ecsa-t.step/max3081ecsa-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices Inc Maxim Integrated datasheet (20 pp, sha256
90c2a02156880f64, retrieved 2026-10-18, 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).
# MAX3081ECSA+T
**Analog Devices Inc Maxim Integrated** · RS-485 / RS-422 ICs · SOIC-8
MAX3081ECSA+T from Analog Devices Inc Maxim Integrated, in a SOIC-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 | VCC | power_in | Positive supply, 4.75V ≤ VCC ≤ 5.25V. |
| 2 | RO | output | Receiver output: when RE is low and A − B ≥ −50mV, RO is high; when A − B ≤ −200mV, RO is low; RO is high for open or shorted inputs. |
| 3 | DI | input | Driver input: a high on DI forces non-inverting output Y high and inverting output Z low, and a low on DI forces Y low and Z high. |
| 4 | GND | power_in | Ground. |
| 5 | Y | output | Noninverting driver output. |
| 6 | Z | output | Inverting driver output. |
| 7 | B | input | Inverting receiver input. |
| 8 | A | input | Noninverting receiver input. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | SOIC-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 |
|---|---|---|---|---|---|---|---|
| Differential Driver Output (RS-422, R = 50Ω) | VOD2 | 2 | | | V | Figure 5, R = 50Ω (RS-422) | 2 |
| Differential Driver Output (RS-485, R = 27Ω) | VOD2 | 1.5 | | | V | Figure 5, R = 27Ω (RS-485) | 2 |
| Differential Driver Output (No Load) | VOD1 | | | 5 | V | Figure 5 | 2 |
| Change-in-Magnitude of Differential Output Voltage | ΔVOD | | | 0.2 | V | Note 2 | 2 |
| Driver Common-Mode Output Voltage | VOC | | | 3 | V | | 2 |
| Change-in-Magnitude of Common-Mode Voltage | ΔVOC | | | 0.2 | V | Note 2 | 2 |
| Input High Voltage (DE, DI, RE) | VIH1 | 2 | | | V | | 2 |
| Input Low Voltage (DE, DI, RE) | VIL1 | | | 0.8 | V | | 2 |
| DI Input Hysteresis | VHYS | | 100 | | mV | | 2 |
| Input Current | IIN1 | -2 | | 2 | µA | | 2 |
| Receiver Output Low Voltage | VOL | | | 0.4 | V | IO = 4mA, VID = -200mV | 3 |
| Receiver Input Hysteresis | ΔVTH | | 25 | | mV | | 3 |
| Receiver Differential Threshold Voltage | VTH | -200 | -125 | -50 | mV | -7V ≤ VCM ≤ 12V | 3 |
| Three-State Output Current at Receiver | IOZR | -1 | | 1 | µA | 0V ≤ VRO ≤ VCC | 3 |
| ESD Protection for Y, Z, A, B | | -15 | | 15 | kV | Human Body Model | 3 |
| Driver Input-to-Output (tDPLH) | tDPLH | 500 | 2030 | 2600 | ns | Figures 7 and 9, RDIFF = 54Ω, CL1 = CL2 = 100pF | 4 |
| Driver Input-to-Output (tDPHL) | tDPHL | 500 | 2030 | 2600 | ns | Figures 7 and 9, RDIFF = 54Ω, CL1 = CL2 = 100pF | 4 |
| Driver Rise or Fall Time | tDR, tDF | 667 | 1320 | 2500 | ns | Figures 7 and 9, RDIFF = 54Ω, CL1 = CL2 = 100pF | 4 |
| Driver Output Skew /tDPLH - tDPHL/ | tDSKEW | -200 | -3 | 200 | ns | Figures 7 and 9, RDIFF = 54Ω, CL1 = CL2 = 100pF | 4 |
| Receiver Differential Skew /tRPLH - tRPHL/ | tRSKD | -30 | 3 | 30 | ns | Figures 11 and 13; /VID/ ≥ 2.0V; rise and fall time of VID ≤ 15ns | 4 |
| Receiver Input to Output | tRPLH, tRPHL | | 127 | 200 | ns | Figures 11 and 13; /VID/ ≥ 2.0V; rise and fall time of VID ≤ 15ns | 4 |
| Driver Disable Time from Low | tDLZ | | | 100 | ns | | 4 |
| Driver Disable Time from High | tDHZ | | | 100 | ns | | 4 |
| Driver Enable to Output Low | tDZL | | | 3500 | ns | | 4 |
| Driver Enable to Output High | tDZH | | | 3500 | ns | | 4 |
| Receiver Enable to Output Low | tRZL | | 20 | 50 | ns | | 4 |
| Receiver Enable to Output High | tRZH | | 20 | 50 | ns | | 4 |
| Receiver Disable Time from Low | tRLZ | | 20 | 50 | ns | | 4 |
| Receiver Disable Time from High | tRHZ | | 20 | 50 | ns | | 4 |
| Maximum Data Rate (SRL unconnected) | fMAX | | | 115 | kbps | | 4 |
| Supply voltage tolerance (test condition VCC = +5V) | VCC | -5 | | 5 | % | VCC = +5V ±5% | 2 |
| Operating Temperature Range (MAX308_EC) | TA | 0 | | 70 | °C | Commercial grade (MAX308_EC__) | 2 |
| Supply Voltage | VCC | | | 7 | V | | 2 |
| Control Input Voltage (RE, DE) | | -0.3 | | | V | Upper limit printed as VCC + 0.3V | 2 |
| Special Input Voltage (H/F, SRL, TXP, RXP) | | -0.3 | | | V | Upper limit printed as VCC + 0.3V | 2 |
| Driver Input Voltage (DI) | | -0.3 | | | V | Upper limit printed as VCC + 0.3V | 2 |
| Driver Output Voltage (A, B, Y, Z) | | -13 | | 13 | V | | 2 |
| Receiver Input Voltage (A, B) | | -13 | | 13 | V | | 2 |
| Receiver Input Voltage, Full Duplex (A, B) | | -25 | | 25 | V | | 2 |
| Receiver Output Voltage (RO) | | -0.3 | | | V | Upper limit printed as VCC + 0.3V | 2 |
| Storage Temperature Range | TSTG | -65 | | 150 | °C | | 2 |
| Lead Temperature (soldering, 10s) | | | | 300 | °C | 10s soldering | 2 |
## CAD (KiCad official)
- Symbol: `MAX3081ECSA+T`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `max3081ecsa-t-etched.step` / `max3081ecsa-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max3081ecsa-t.step` / `max3081ecsa-t.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Analog Devices Inc Maxim Integrated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923255957180416) (20 pp, sha256 `90c2a02156880f64`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/max3081ecsa-t-datasheet.pdf)