Thin-film resistor networks enable higher-precision op-amps and voltage dividers

Vishay has introduced a new series of surface-mount, high-precision dual-in-line thin film resistor networks featuring improved performance and a smaller size than previous-generation SOIC devices. Offering a slim maximum seated height of 1.1mm, the MORN series delivers lower TCR tracking to ±1ppm/C, tighter ratio tolerances to ± 0.01%, and exceptional long-term ratio stability of 0.015% after 2000 hours at +70C. MORN series devices feature four isolated resistors with resistance values from 400ohm to 100kohm. Offered in compact 25mm pitch, 8-pin MSOP packages - in accordance with JEDEC MO-187, variation AA - the resistor networks provide a rugged moulded construction and typical power ratings of 50mW per resistor element. The integrated construction of MORN resistor networks allows for higher precision over discrete SMD chips, making the devices ideal for precision voltage dividers and unity gain operational amplifier circuitry. Typical end products will include telecommunications, industrial, process control, and medical instrumentation. The devices feature extremely low noise of =-30dB and voltage coefficients of 0.1ppm/V, and they operate over a wide temperature range of -55C to +125C. MORN series devices are RoHS-compliant and halogen-free, says the company.