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MAX3081ECSA+T

Public Made by Adom

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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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Contents

README

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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.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 (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