The ADuM3195/ADuM41951 are isolation amplifiers based on Analog Devices, Inc., iCoupler® technology. The ADuM3195/ADuM4195 have very low offset and gain error, making them ideal for many isolated voltage sensing applications. Unlike optocoupler-based solutions, which have an uncertain current transfer ratio over lifetime and at high temperatures, the ADuM3195/ ADuM4195 transfer functions do not change over lifetime, and are stable over a wide temperature range of −40°C to +125°C. Included in the ADuM3195/ADuM4195 are wideband operational amplifiers useful for a variety of commonly used applications, and two high accuracy 2.5 V references outputs. The ADuM3195 is packaged in a 16-lead quarter small outline package (QSOP) for a 3000 V rms isolation voltage rating according to UL1577. The ADuM4195 is packaged in a 16-lead wide-body SOIC package with increased creepage for a 5000 V rms isolation voltage rating according to UL1577. APPLICATIONS * Inverters * DC to DC converters * On-board chargers Protected by U.S. Patents 5,952,849, 6,873,065 and 7,075,329. Other patents pending. * High-Impedance input for isolated voltage measurement * Low offset error and drift (output offset voltage): ±6 mV (Max) at 25°C and ±130 μV/°C (max) * Low gain error and drift: ±0.5% (max) and ±27 ppm/°C (max) * Voltage-supply range * VDD1: 4.5 V to 5.5 V * VDD2: 4.5 V to 5.5 V * Bandwidth: 210 kHz * Safety and regulatory approvals * UL 1577 * ADuM3195: VISO = 3000 V rms for 1 minute * ADuM4195: VISO = 5000 V rms for 1 minute