The ADuM4190 is an isolated error amplifier based on ADI, iCoupler® technology. The ADuM4190 is ideal forlinear feedback power supplies. The primary side controllers ofthe ADuM4190 enable improvements in transient response, powerdensity, and stability as compared to commonly used optocouplerand shunt regulator solutions.Unlike optocoupler-based solutions, which have an uncertaincurrent transfer ratio over lifetime and at high temperatures, theADuM4190 transfer function does not change over its lifetimeand is stable over a wide temperature range of −40°C to +125°C.Included in the ADuM4190 is a wideband operational amplifierfor a variety of commonly used power supply loop compensationtechniques. The ADuM4190 is fast enough to allow a feedback loopto react to fast transient conditions and overcurrent conditions.Also included is a high accuracy 1.225 V reference to comparewith the supply output setpoint.The ADuM4190 is packaged in a wide body, 16-lead SOIC packagefor a reinforced 5 kV rms isolation voltage rating.Applications Linear feedback power supplies Inverters Uninterruptible power supplies (UPS) DOSA-compatible modules Voltage monitors

Precision Amplifiers DUAL PRECISION OP AMP IC

Precision Amplifiers DUAL PRECISION OP AMP

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Single Resistor Gain Programmable, Precision Instrumentation Amplifier Features: Single Gain Set Resistor: G = 1 to 10,000 Gain Error: G = 10, 0.08% Max Input Offset Voltage Drift: 0.3µV/°C Max Meets IEC 1000-4-2 Level 4 ESD Tests with Two External 5k Resistors Gain Nonlinearity: G = 10, 10ppm Max Input Offset Voltage: G = 10, 60µV Max Input Bias Current: 350pA Max PSRR at G = 1: 105dB Min CMRR at G = 1: 90dB Min Supply Current: 1.3mA Max Wide Supply Range: ±2.3V to ±18V 1kHz Voltage Noise: 7.5nV/√Hz 0.1Hz to 10Hz Noise: 0.28µVP-P Available in 8-Pin PDIP and SO Packages

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Internally Trimmed Precision IC Multiplier Features: Pretrimmed to ±0.25% max 4-Quadrant  Error (AD534L) All Inputs (X, Y and Z) Differential, High Impedance for [(X1 - X2) (Y1 - Y2)/10 V] + Z2 Transfer Function Scale-Factor Adjustable to Provide up to X100 Gain Low Noise Design: 90 µV rms, 10 Hz-10 kHz Low Cost, Monolithic Construction Excellent Long Term Stability

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