ADN4621BRSZ

ADN4621BRSZ is a dual-channel, signal isolated, low voltage differential signaling buffer gigabit isolator that operate at up to 2.5Gbps with very low jitter. The device integrates Analog Devices, Inc., iCoupler® technology, enhanced for high speed operation to provide drop-in galvanic isolation of LVDS signal chains. AC coupling and/or level shifting to the LVDS receivers and from the LVDS drivers allows isolation of other high speed signals, such as current mode logic (CML). It includes a refresh mechanism to monitor the input and output states and ensure that they remain the same in the absence of data transitions. Application includes analog front-end isolation, data plane isolation, isolated high speed clock and data links, multigigabit serialization/deserialization (SERDES), PCB-to-PCB optical replacement (for example, short reach fiber).

• Rated dielectric insulation voltage is 3.75kV rms (1 minute duration)
• Complies with TIA/EIA-644-A LVDS signal levels, dual-channel configuration
• Maximum data rate is 2.5Gbps min (VDD1 = VDD2 = 1.8V and TA = 25°C)
• Total jitter, peak-to-peak, at bit error rate 1 × 10-¹² is 40ps typ (1.25GHz/2.5Gbps)
• Propagation delay is 2.15ns typ (VDD1 = VDD2 = 1.8V and TA = 25°C)
• Random jitter, RMS is 0.82ps rms typ (1.25GHz clock input, TA = 25°C)
• Lower power 1.8V supplies with 3.3V supplies for I/O
• Up to ±8kV IEC 61000-4-2 ESD protection across isolation barrier
• Common-mode transient immunity is 70kV/µs typ (VCM = 1000V)
• 20 lead SSOP package, temperature range from -40°C to +125°C