Description

   The AT3095/AT3096 are rugged, low-power, quad, RS-422/RS-485 receivers with electrostatic discharge (ESD) protection for use in harsh environments. All receiver inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge, and ±15kV using the Human Body Model. The AT3095 operates from a +5V supply, while the AT3096 operates from a +3.3V supply. Receiver propagation delays are guaranteed to within ±8ns of a predetermined value, thereby ensuring device-to-device matching across production lots.

    Complementary enable inputs can be used to place the devices in a 1nA low-power shutdown mode in which the receiver outputs are high impedance. When active, these receivers have a fail-safe feature that guarantees a logic-high output if the input is open circuit. They also feature a quarter-unit-load input impedance that allows 128 receivers on a bus.

    The AT3095/AT3096 are pin-compatible, low-power upgrades to the industry-standard 26LS32. They are available in a space-saving QSOP package

Features

    ESD Protection:

• ±15kV—IEC 1000-4-2, Air-Gap Discharge

• ±8kV—IEC 1000-4-2, Contact Discharge

• ±15kV—Human Body Model

    Guaranteed Propagation-Delay Tolerance

Between All ICs:

• ±8ns (AT3095)

• ±10ns (AT3096)

    Single +3V Operation (AT3096) Single +5V Operation (AT3095)

    16-Pin QSOP (8-pin SO footprint) 

    10Mbps Data Rate

    Allow up to 128 Receivers on the Bus 

    1nA Low-Power Shutdown Mode

    2.4mA Operating Supply Current

    Pin-Compatible Upgrades to 26LS32

Applications

    Telecommunications Equipment

    Rugged RS-422/RS-485/RS-423 Bus Receiver

    Receivers for ESD-Sensitive Applications

    Level Translators

Functional Diagram