±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23 Package, 20Mbps, Full Fail-safe, Low Power, RS-485/RS-422 Receivers
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Overview
Description
The Intersil ISL3280E, ISL3281E, ISL3282E, ISL3283E, and ISL3284E are ±16. 5kV IEC61000 ESD Protected, 3. 0V to 5. 5V powered, single receivers that meet both the RS-485 and RS-422 standards for balanced communication. These receivers have very low bus currents (+125µA/-100µA), so they present a true “1/8 unit load” to the RS-485 bus. This allows up to 256 receivers on the network without violating the RS-485 specification’s 32 unit load maximum and without using repeaters. Receiver inputs feature a “Full Fail-Safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or terminated but undriven. The ISL3280E and ISL3284E feature an always enabled Rx; the ISL3281E features an active-high Rx enable pin and the ISL3282E and ISL3283E include an active-low enable pin. All versions are offered in Industrial and Extended Industrial (-40°C to +125°C) temperature ranges. A 26% smaller footprint is available with the ISL3282E TDFN package. These devices, plus the ISL3284E, also feature a logic supply pin (VL) that sets the VOH level of the RO output (and the switching points of the RE/RE input) to be compatible with another supply voltage in mixed voltage systems. For companion single RS-485 transmitters in micro packages, please see the ISL3293E datasheet.
Features
- IEC61000 ESD protection on RS-485 inputs: ±16.5kV
- Class 3 ESD level on all other pins: >5kV HBM
- Pb-free (RoHS compliant)
- Wide supply range: 3.0V to 5.5V
- Specified for +125°C operation
- Logic supply pin (VL) eases operation in mixed supply systems (ISL3282E, ISL3284E only)
- Full fail-safe (open, short, terminated/undriven)
- True 1/8 unit load allows up to 256 devices on the bus
- High data rates: up to 20Mbps
- Low quiescent supply current: 500µA (max)
- Very low shutdown supply current: 20µA (max)
- -7V to +12V common-mode input voltage range
- Tri-statable Rx available (active low or high EN input)
- 5V tolerant logic inputs when VCC ≤ 5V
Applications
Applications
- Clock Distribution
- High Node Count Systems
- Space Constrained Systems
- Security Camera Networks
- Building Environmental Control/Lighting Systems
- Industrial/Process Control Networks
Documentation
| Document title | Document type
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Date Date | |
|---|---|---|---|
| PDF 993 KB | Datasheet | ||
| PDF 365 KB | Application Note | ||
| PDF 207 KB | Application Note | ||
| PDF 474 KB | Application Note | ||
| PDF 366 KB | Application Note | ||
| PDF 178 KB | Application Note | ||
| PDF 513 KB | Application Note | ||
| PDF 826 KB | Application Note | ||
| PDF 443 KB | Application Note | ||
| PDF 582 KB | Application Note | ||
| PDF 440 KB | Application Note | ||
| PDF 338 KB | Application Note | ||
| PDF 365 KB | Application Note | ||
| PDF 375 KB | Application Note | ||
| PDF 559 KB | Application Note | ||
| PDF 4.91 MB 日本語 | Brochure | ||
| PDF 2.95 MB | Brochure | ||
| PDF 825 KB | Other | ||
| PDF 156 KB | Other | ||
| PDF 253 KB | Other | ||
| PDF 254 KB | Other | ||
| PDF 398 KB | Product Change Notice | ||
| PDF 438 KB | Report | ||
| PDF 266 KB 简体中文 | Technical Brief | ||
| PDF 188 KB | Technical Brief | ||
| PDF 405 KB | Training | ||
| PDF 239 KB | Training | ||
| PDF 920 KB 简体中文 | White Paper | ||
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Product Options
Processing table
| SOT23 | Reel | 3000 | ||
| SOT23 | Reel | 3000 |
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