
Analog Devices
GENERAL DESCRIPTION
The ADN4690E/ADN4692E/ADN4694E/ADN4695E are multipoint, low voltage differential signaling (M-LVDS) transceivers (driver and receiver pairs) that can operate at up to 100 Mbps (50 MHz). Slew rate control is implemented on the driver outputs. The receivers detect the bus state with a differential input of as little as 50 mV over a common-mode voltage range of −1 V to +3.4 V. ESD protection of up to ±15 kV is implemented on the bus pins. The parts adhere to the TIA/EIA-899 standard for M-LVDS and complement TIA/EIA-644 LVDS devices with additional multipoint capabilities.
FEATURES
Multipoint LVDS transceivers (low voltage differential signaling driver and receiver pairs)
Switching rate: 100 Mbps (50 MHz)
Supported bus loads: 30 Ω to 55 Ω
Choice of 2 receiver types
Type 1 (ADN4690E/ADN4692E): hysteresis of 25 mV
Type 2 (ADN4694E/ADN4695E): threshold offset of 100 mV for open-circuit and bus-idle fail-safe
Conforms to TIA/EIA-899 standard for M-LVDS
Glitch-free power-up/power-down on M-LVDS bus
Controlled transition times on driver output
Common-mode range: −1 V to +3.4 V, allowing communication with 2 V of ground noise
Driver outputs high-Z when disabled or powered off
Enhanced ESD protection on bus pins
±15 kV HBM (human body model), air discharge
±8 kV HBM (human body model), contact discharge
±10 kV IEC 61000-4-2, air discharge
±8 kV IEC 61000-4-2, contact discharge
Operating temperature range: −40°C to +85°C
Available in 8-lead (ADN4690E/ADN4694E) and 14-lead (ADN4692E/ADN4695E) SOIC packages
APPLICATIONS
Backplane and cable multipoint data transmission
Multipoint clock distribution
Low power, high speed alternative to shorter RS-485 links
Networking and wireless base station infrastructure