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ADM3483EARZ-REEL7
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Analog Devices RS-485 / RS-422 ICs, SOIC-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
markdownADM3483EARZ-REEL7
Analog Devices · RS-485 / RS-422 ICs · SOIC-8
ADM3483EARZ-REEL7 from Analog Devices, 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 | RO | output | Receiver output: RO is high when A is more than 200 mV above B and low when A is more than 200 mV below B. |
| 2 | RE | input | Receiver output enable: a low level enables RO, a high level places it in high impedance, and RE high with DE low puts the device into low-power shutdown. |
| 3 | DE | input | Driver output enable: a high level enables the driver A and B outputs, a low level places them in high impedance, and DE low with RE high puts the device into low-power shutdown. |
| 4 | DI | input | Driver input: with the driver enabled, a logic low forces A low and B high, and a logic high forces A high and B low. |
| 5 | GND | power_in | Ground connection for the device. |
| 6 | A | bidirectional | Noninverting receiver input A and noninverting driver output A, for the RS-485/RS-422 bus. |
| 7 | B | bidirectional | Inverting receiver input B and inverting driver output B, for the RS-485/RS-422 bus. |
| 8 | VCC | power_in | Power supply, 3.3 V ± 0.3 V; bypass VCC to GND with a 0.1 µF capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| 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 Output Voltage (RS-422 load) | VOD | 2 | V | RL = 100 Ω (RS-422) (see Figure 7) | 4 | ||
| Differential Output Voltage (RS-485 load) | VOD | 1.5 | V | RL = 54 Ω (RS-485) (see Figure 7) | 4 | ||
| Differential Output Voltage (RS-485 load, Figure 8) | VOD | 1.5 | V | RL = 60 Ω (RS-485) (see Figure 8) | 4 | ||
| Change in /VOD/ for complementary output states | ΔVOD | 0.2 | V | RL = 54 Ω or 100 Ω (see Figure 7) | 4 | ||
| Common-Mode Output Voltage | VOC | 3 | V | RL = 54 Ω or 100 Ω (see Figure 7) | 4 | ||
| Change in /VOC/ for complementary output states | ΔVOC | 0.2 | V | RL = 54 Ω or 100 Ω (see Figure 7) | 4 | ||
| Short-Circuit Output Current | IOSD | -250 | mA | VOUT = −7 V | 4 | ||
| Short-Circuit Output Current | IOSD | 250 | mA | VOUT = 12 V | 4 | ||
| Input High Voltage | VIH | 2 | V | DE, DI, RE | 4 | ||
| Input Low Voltage | VIL | 0.8 | V | DE, DI, RE | 4 | ||
| Logic Input Current | IIN1 | -2 | 2 | μA | DE, DI, RE | 4 | |
| Differential Input Threshold Voltage | VTH | -0.2 | 0.2 | V | −7 V < VCM < +12 V | 4 | |
| Input Resistance (A, B) | RIN | 12 | kΩ | −7 V < VCM < +12 V | 4 | ||
| Input Current (A, B) | IIN2 | 1 | mA | DE = 0 V, VCC = 0 V or 3.6 V, VIN = 12 V | 4 | ||
| Input Current (A, B) | IIN2 | -0.8 | mA | DE = 0 V, VCC = 0 V or 3.6 V, VIN = −7 V | 4 | ||
| Output Low Voltage (RO) | VOL | 0.4 | V | IOUT = 2.5 mA, VID = 200 mV (see Figure 9) | 4 | ||
| Tristate Output Leakage Current (RO) | IOZR | -1 | 1 | μA | VCC = 3.6 V, 0 V < VOUT < VCC | 4 | |
| Supply Voltage Range | VCC | 3 | 3.6 | V | 4 | ||
| Supply Current | ICC | 1.1 | 2.2 | mA | No load, DI = 0 V or VCC, DE = VCC, RE = 0 V or VCC | 4 | |
| Supply Current | ICC | 0.95 | 1.9 | mA | No load, DI = 0 V or VCC, DE = 0 V, RE = 0 V | 4 | |
| Shutdown Current | ISHDN | 0.002 | 1 | μA | DE = 0 V, RE = VCC, DI = 0 V or VCC | 4 | |
| ESD protection, A, B, Y, Z pins | -15 | 15 | kV | Human body model | 4 | ||
| ESD protection, all pins except A, B, Y, Z | -4 | 4 | kV | Human body model | 4 | ||
| Differential Output Delay | tDD | 600 | 900 | 1400 | ns | RL = 60 Ω (see Figure 10) | 5 |
| Differential Output Transition Time | tTD | 400 | 740 | 1200 | ns | RL = 60 Ω (see Figure 10) | 5 |
| Propagation Delay From Low to High Level | tPLH | 700 | 930 | 1500 | ns | RL = 27 Ω (see Figure 11) | 5 |
| Propagation Delay From High to Low Level | tPHL | 700 | 930 | 1500 | ns | RL = 27 Ω (see Figure 11) | 5 |
| Propagation Delay Skew /tPLH − tPHL/ | tPDS | -50 | 50 | ns | RL = 27 Ω (see Figure 11) | 5 | |
| Enable Time to Low Level (driver) | tPZL | 900 | 1300 | ns | RL = 110 Ω (see Figure 13) | 5 | |
| Enable Time to High Level (driver) | tPZH | 600 | 800 | ns | RL = 110 Ω (see Figure 12) | 5 | |
| Disable Time from Low Level (driver) | tPLZ | 50 | 80 | ns | RL = 110 Ω (see Figure 13) | 5 | |
| Disable Time from High Level (driver) | tPHZ | 50 | 80 | ns | RL = 110 Ω (see Figure 12) | 5 | |
| Enable Time from Shutdown to Low Level (driver) | tPSL | 1.9 | 2.7 | μs | RL = 110 Ω (see Figure 13) | 5 | |
| Enable Time from Shutdown to High Level (driver) | tPSH | 2.2 | 3 | μs | RL = 110 Ω (see Figure 12) | 5 | |
| Propagation Delay From Low to High Level (receiver, ADM3483E/ADM3488E) | tRPLH | 25 | 75 | 120 | ns | VID = 0 V to 3.0 V, CL = 15 pF (see Figure 14) | 6 |
| Propagation Delay From High to Low Level (receiver, ADM3483E/ADM3488E) | tRPHL | 25 | 75 | 120 | ns | VID = 0 V to 3.0 V, CL = 15 pF (see Figure 14) | 6 |
| Propagation Delay Skew (receiver, ADM3483E/ADM3488E) | tRPDS | -20 | 12 | 20 | ns | VID = 0 V to 3.0 V, CL = 15 pF (see Figure 14) | 6 |
| Receiver Enable Time to Low Level | tRPZL | 25 | 50 | ns | CL = 15 pF (see Figure 15) | 6 | |
| Receiver Enable Time to High Level | tRPZH | 25 | 50 | ns | CL = 15 pF (see Figure 15) | 6 | |
| Receiver Disable Time from Low Level | tRPLZ | 25 | 45 | ns | CL = 15 pF (see Figure 15) | 6 | |
| Receiver Disable Time from High Level | tRPHZ | 25 | 45 | ns | CL = 15 pF (see Figure 15) | 6 | |
| Receiver Enable Time from Shutdown to Low Level | tRPSL | 720 | 1400 | ns | CL = 15 pF (see Figure 15) | 6 | |
| Receiver Enable Time from Shutdown to High Level | tRPSH | 720 | 1400 | ns | CL = 15 pF (see Figure 15) | 6 | |
| Time to Shutdown | tSHDN | 80 | 190 | 300 | ns | 6 | |
| VCC to GND | VCC | -0.3 | 6 | V | 7 | ||
| Digital Input/Output Voltage (DE, RE, DI) | -0.3 | 6 | V | 7 | |||
| Receiver Output Voltage (RO) | -0.3 | V | Upper limit printed as VCC + 0.3 V | 7 | |||
| Driver Output (A, B, Y, Z) / Receiver Input (A, B) Voltage | -8 | 13 | V | 7 | |||
| Driver Output Current | -250 | 250 | mA | 7 | |||
| Operating Temperature Range | -40 | 85 | °C | 7 | |||
| Storage Temperature Range | -65 | 150 | °C | 7 | |||
| Lead Temperature, Soldering | 260 | °C | 20 sec | 7 | |||
| θJA Thermal Impedance | θJA | 158 | °C/W | 8-Lead SOIC_N | 7 |
CAD (KiCad official)
- Symbol:
ADM3483EARZ-REEL7 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
adm3483earz-reel7-etched.step/adm3483earz-reel7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);adm3483earz-reel7.step/adm3483earz-reel7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (20 pp, sha256
87cccf26385bffa0, 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).