LTC2804 Datasheet | Linear Technology

LTC2801/LTC2802/ LTC2803/LTC2804 1.8V to 5.5V RS-232 Single and Dual Transceivers Features n 1.8V to 5.5V Supply Voltage n Single and Dual Transceivers n High-Speed Operation 1Mbps for 250p F/3kΩ Load (LTC2802, LTC2804) 250kbps for 1n F/3kΩ Load 100kbps for 2.5n F/3kΩ TIA/EIA-232-F Load n Low-Power 1µA Shutdown and 15µA Receivers Active Modes n No Damage or Latchup to ±10k V ESD on RS-232 Interface n Logic Supply Pin for Easy Level-Shifting to UART or Microprocessor n Low-Latency Output Enable Allows Line Sharing and Half-Duplex Operation n True RS-232 pliant Output Levels n Small Footprint: LTC2801/LTC2802 4mm × 3mm DFN Package LTC2803/LTC2804 Narrow SSOP-16 and 5mm × 3mm DFN Packages Applications n Battery-Powered Systems n puters and Consumer Electronics n Diagnostic Ports L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Description The LTC®2801/LTC2802/LTC2803/LTC2804 are single and dual RS-232 transceivers in narrow SSOP and chip-scale DFN packages. All operate over a supply range of 1.8V to 5.5V, which permits operation directly from two alkaline, Ni Cd or Ni MH cells. An integrated DC-to-DC converter generates power supplies for driving RS-232 levels. A logic supply pin allows easy interfacing with different logic levels independent of the DC-DC supply. These parts are patible with the TIA/EIA-232-F standard. Driver outputs are protected from overload and can be shorted to ground or up to ±15V without damage. To extend battery life, receivers can be kept active, operating at reduced speed, with only 15µA current. In shutdown mode, current is further reduced to 1µA. Product Selection Guide DRIVERS AND MAXIMUM PART NUMBER RECEIVERS DATA RATE MODES- PACKAGE LTC2801 1+1 0.25Mbps SD, RA, DD, AO DFN-12 LTC2802 1+1 1Mbps SD, RA, DD, AO DFN-12 LTC2803 2+2 0.25Mbps SD, RA, DD, AO DFN-16 LTC2803-1 2+2 0.25Mbps SD, AO...