1FEATURES

? Meets TIA/EIA-422-B (RS-422) and ITU-T V.11

Recommendation

? Interoperable With Existing 5V RS-422

Networks

? Ensured VOD of 2V Min Over Operating

Conditions

? Balanced Output Crossover for Low EMI

(Typical Within 40 mV of 50% Voltage Level)

? Low Power Design (330 μW @ 3.3V Static)

? ESD ≥ 7 kV on Cable I/O Pins (HBM)

? Industrial Temperature Range

? Ensured AC Parameter:

– Maximum Driver Skew: 2 ns

– Maximum Transition Time: 10 ns

? Pin Compatible With DS26C31

? Available in SOIC Packaging

DESCRIPTION

The DS34LV87T is a high speed quad differential

CMOS driver that meets the requirements of both

TIA/EIA-422-B and ITU-T V.11. The CMOS

DS34LV87T features low static ICC of 100 μA max

which makes it ideal for battery powered and power

conscious applications. The TRI-STATE enable, EN,

allows the device to be disabled when the device is

not in use to minimize power. The dual enable

scheme allows for flexibility in turning devices on or

off.

Protection diodes protect all the driver inputs against

electrostatic discharge. The driver and enable inputs

(DI and EN) are compatible with LVTTL and

LVCMOS devices. Differential outputs have the same

VOD (≥2V) ensure as the 5V version. The outputs

have enhanced ESD Protection providing greater

than 7 kV tolerance.