The ADM1487 is an ultra-low power RS-485/RS-422 transceiver consisting of one driver and one receiver per package. Quiescent operating current is typically 80µA and 1µA in shutdown mode. The driver and receiver both have three-state outputs. This allows multiple drivers to be connected to an RS-485/RS-422 bus, or several receiver outputs to be connected to a serial data bus. The driver will maintain a high-impedance output state even with power off, while the receiver features fail-safe operation that guarantees a logic high output if the inputs are left open-circuit. The device has slew-rate limited drivers to minimize electromagnetic interference (EMI) and reduce reflections caused by incorrectly terminated cables.
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Battery-Powered RS-485/RS-422 SystemsLevel Translation
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Low Power - 120µA Max ICC with Driver DisabledHigh Input Impedance - Up to 256 Transceivers on BusLow-Current (1µA) Shutdown ModeSlew Rate Control for Error-Free DataTransmission and Low EMI±10kV ESD Protection (Human Body Model) onRS-485 I/O pinsThermal Protection of DriverGlitch-Free Driver Power-Up Allows Hot ConnectionDriver Maintains High Output Impedance with Power OffWide Common-Mode Range Allows ±7V Ground Differences Between DevicesPin-Compatible with Industry Standard 75176
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Supply Voltage (Vcc) . . . . . . . . . . . . . . . . . . . . . . . . .12V
Control Input Voltage . . . . . . . . . . . 0.5V to Vcc + 0.5V
Driver Input Voltage . . . . . . . . . . . 0.5V to Vcc + 0.5V
Driver Output Voltage . . . . . . . . . . . . . . . . . . . . . . ±14V
Receiver InputVoltage . . . . . . . . . . . . . . . . . . . . . . ±14V
Receiver Output Voltage . . . . . . . . .0.5V to Vcc + 0.5V
Operating Temperature Range . . . . . . 0°C TA70°C
Lead Temperature (Soldering, 10 sec) . . . . . . . 300°C
Post a Buying Lead
Required Field 
