The ADM307xE are 3.3 V, low power data transceivers with ±15 kV ESD protection suitable for full- and half-duplex communication on multipoint bus transmission lines. They are designed for balanced data transmission, and they comply with TIA/EIA standards: RS-485 and RS-422. The devices have a ⅛ unit load receiver input impedance, which allows up to 256 transceivers on a bus. Because only one driver should be enabled at any time, the output of a disabled or powered-down driver is tristated to avoid overloading the bus. The receiver inputs have a true fail-safe feature, which eliminates the need for external bias resistors and ensures a logic high output level when the inputs are open or shorted. This guarantees that the receiver outputs are in a known state before communication begins and when communication ceases. Applications * Power/energy metering * Industrial control * Lighting systems * Telecommunications * Security systems * Instrumentation * TIA/EIA RS-485/RS-422 compliant * ±15 kV ESD protection on RS-485 input/output pins * Data rates * ADM3070E/ADM3071E/ADM3072E: 250 kbps * ADM3073E/ADM3074E/ADM3075E: 500 kbps * ADM3076E/ADM3077E/ADM3078E: 16 Mbps * Half- and full-duplex options * True fail-safe receiver inputs * Up to 256 nodes on the bus https://elecena.pl/product/195048/3-3-v-load-15kv-esd-protected-rs-485-rs-422-transceiver-half-duplex-250-kbps-de-re 2007-02-22 https://elecena.pl/product/195048/3-3-v-load-15kv-esd-protected-rs-485-rs-422-transceiver-half-duplex-250-kbps-de-re 2018-03-28 https://elecena.pl/product/195048/3-3-v-load-15kv-esd-protected-rs-485-rs-422-transceiver-half-duplex-250-kbps-de-re 2025-01-18