ISO165

® ISO 165 ISO165 ISO175 ISO 175 Precision, Isolated INSTRUMENTATION AMPLIFIER FEATURES q RATED 1500Vrms Continuous 2500Vrms for One Minute 100% TESTED FOR PARTIAL DISCHARGE q HIGH IMR: 115dB at 50Hz q LOW NONLINEARITY: ±0.01% q LOW INPUT BIAS CURRENT: 10nA max q LOW INPUT OFFSET VOLTAGE: 101mV max q INPUTS PROTECTED TO ±40V q BIPOLAR OPERATION: VO = ±10V q SYNCHRONIZATION CAPABILITY q 24-PIN PLASTIC DIP: 0.3" Wide DESCRIPTION ISO165 and ISO175 are precision isolated instrumentation amplifiers incorporating a novel duty cycle modulation-demodulation technique and excellent accuracy. A single external resistor sets the gain. Internal input protection can withstand up to ±40V without damage. The signal is transmitted digitally across a differential capacitive barrier. With digital modulation the barrier characteristics do not affect signal integrity. This results in excellent reliability and good high frequency transient immunity across the barrier. Both the amplifier and barrier capacitors are housed in a plastic DIP. ISO165 and ISO175 differ in frequency response and linearity. These amplifiers are easy to use. A power supply range of ±4.5V to ±18V makes these amplifiers ideal for a wide range of applications. APPLICATIONS q INDUSTRIAL PROCESS CONTROL Transducer Isolator, Thermocouple Isolator, RTD Isolator, Pressure Bridge Isolator, Flow Meter Isolator q POWER MONITORING q MEDICAL INSTRUMENTATION q ANALYTICAL MEASUREMENTS q BIOMEDICAL MEASUREMENTS q DATA ACQUISITION q T...