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MAX3490ESA

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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MAX3490ESA

Analog Devices Inc Maxim Integrated · RS-485 / RS-422 ICs · SOIC-8

MAX3490ESA 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, 3.0V ≤ VCC ≤ 3.6V.
2 RO output Receiver output: high if A > B by 200mV, low if A < B by 200mV.
3 DI input Driver input: low forces Y low and Z high, high forces Y high and Z low.
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
Receiver Output Low Voltage VOL 0.4 V IOUT = 2.5mA, VID = 200mV, Figure 6 2
Receiver Differential Threshold Voltage VTH -0.2 0.2 V -7V ≤ VCM ≤ 12V 2
Receiver Input Resistance RIN 12 kΩ 2
Differential Driver Output Voltage VOD 1.5 V RL = 54Ω (RS-485), Figure 4 2
Change in Magnitude of Differential Driver Output Voltage for Complementary Output States ΔVOD 0.2 V 2
Driver Common-Mode Output Voltage VOC 3 V RL = 54Ω or 100Ω, Figure 4 2
Change in Magnitude of Common-Mode Output Voltage ΔVOC 0.2 V 2
Input High Voltage VIH 2 V 2
Input Low Voltage VIL 0.8 V 2
Logic Input Current IIN1 -2 2 µA DE, DI, RE 2
Input Current (A, B) IIN2 -0.8 1 mA VIN = -7V (min), VIN = 12V (max) 2
Receiver Three-State (High Impedance) Output Current at Receiver IOZR -1 1 µA 2
Driver Short-Circuit Output Current IOSD -250 250 mA VOUT = -7V (min), VOUT = 12V (max) 3
Receiver Short-Circuit Output Current IOSR -60 60 mA 0V ≤ VRO ≤ VCC 3
Supply Current ICC 0.95 1.9 mA No load, DI = 0V or VCC 3
Supply Current ICC 1.1 2.2 mA No load, DI = 0V or VCC 3
Driver Propagation Delay, Low-to-High Level tPLH 7 22 35 ns RL = 27Ω, Figure 8 3
Driver Differential Output Transition Time tTD 3 8 25 ns RL = 60Ω, Figure 7 3
Driver Differential Output Delay tDD 1 22 35 ns RL = 60Ω, Figure 7 3
Driver Output Enable Time from Shutdown to High Level tPSH 650 900 ns RL = 110Ω, Figure 9 3
Driver Output Enable Time from Shutdown to Low Level tPSL 650 900 ns RL = 110Ω, Figure 10 3
Driver Output Disable Time from High Level tPHZ 40 80 ns RL = 110Ω, Figure 9 3
Driver Propagation Delay, High-to-Low Level tPHL 7 22 35 ns RL = 27Ω, Figure 8 3
Driver Propagation Delay Skew tPDS 8 ns RL = 27Ω, Figure 8 3
Driver Output Enable Time to Low Level tPZL 45 90 ns RL = 110Ω, Figure 10 3
Driver Output Enable Time to High Level tPZH 45 90 ns RL = 110Ω, Figure 9 3
Driver Output Disable Time from Low Level tPLZ 40 80 ns RL = 110Ω, Figure 10 3
Absolute Maximum Supply Voltage VCC 7 V 2
Control Input Voltage (RE, DE) -0.3 7 V 2
Driver Input Voltage (DI) -0.3 7 V 2
Driver Output Voltage (A, B, Y, Z) -7.5 12.5 V 2
Receiver Input Voltage (A, B) -7.5 12.5 V 2
Receiver Output Voltage (RO) -0.3 V Upper limit printed as VCC + 0.3V 2
Storage Temperature Range -65 160 °C 2
Lead Temperature (soldering) 300 °C 10 sec 2
Supply Voltage VCC 3 3.3 3.6 V 3.0V ≤ VCC ≤ 3.6V (pin description); DC tests at VCC = 3.3V ±0.3V 6
Operating Temperature Range (MAX34__E__) -40 85 °C E-grade suffix 2

CAD (KiCad official)

  • Symbol: MAX3490ESA
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: max3490esa-etched.step / max3490esa-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max3490esa.step / max3490esa.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Analog Devices Inc Maxim Integrated datasheet (17 pp, sha256 4b4eb68a9602eafc, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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