Key facts
- Brand
- Analog Devices
- Model
- ADM3491
- Industry
- Industrial
- Documents
- 5
- Languages
- EN
- Last added
- 2012-03-28
Start here
Analog Devices ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 Handbook
The ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 family are low‑power, differential line transceivers that operate from a single 3.3 V supply. Half‑duplex parts (ADM3483, ADM3488) support up to 250 kbps, while full‑duplex parts (ADM3485, ADM3490, ADM3491) support up to 10 Mbps. They are intended for low‑power RS‑485/RS‑422 applications such as telecom, industrial process control, and HVAC.
The handbook lists electrical characteristics, timing specifications, pin‑out diagrams, and absolute maximum ratings. Key features include shutdown mode with 2 nA current, up to 32 transceivers on a bus, and packages in 8‑lead or 14‑lead SOIC.
Analog Devices ADM3491 specifications
| Supply voltage | 3.3 V ±0.3 V |
|---|---|
| Operating temperature range | -40 °C to +85 °C |
| Maximum data rate (half‑duplex) | 250 kbps |
| Maximum data rate (full‑duplex) | 10 Mbps |
| Receiver input impedance | 12 kΩ |
| Maximum number of transceivers on bus | 32 |
| Shutdown mode current | 0.002 µA (2 nA) |
| Driver output short‑circuit current | 250 mA |
Source: Analog Devices ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 Handbook
All Analog Devices ADM3491 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
- Analog Devices ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 Handbook 20 p
- Analog Devices ADM3491 Datasheet 12 p
- Analog Devices ADM3491 Datasheet 12 p
- Analog Devices ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 RS-485/RS-422 Transceiver Datasheet 20 p
- Analog Devices ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 Handbook 20 p
Questions answered in these manuals
What supply voltage do the ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 transceivers require?
They operate from a 3.3 V supply (±0.3 V).
From: Analog Devices ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 Handbook
What are the maximum data rates for the half‑duplex and full‑duplex parts?
Half‑duplex parts (ADM3483, ADM3488) support up to 250 kbps, while full‑duplex parts (ADM3485, ADM3490, ADM3491) support up to 10 Mbps.
From: Analog Devices ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 Handbook
What supply voltage does the ADM3491 require?
The device operates with a +3.3 V supply.
How many transceivers can be connected on a single bus?
Up to 50 transceivers can be connected on the bus.
What supply voltage does the ADM3491 require?
The device operates from a single +3.3 V supply.
How many transceivers can be connected on the bus?
Up to 50 transceivers can be connected on the bus.