RCV420JP UART Interface IC Sensor Interface Precision 4-20mA Crnt Loop Rcvr
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RCV420JP UART Interface IC Sensor Interface Precision 4-20mA Crnt Loop Rcvr
FEATURES ● COMPLETE 4-20mA TO 0-5V CONVERSION ● INTERNAL SENSE RESISTORS ● ±40V COMMON-MODE INPUT RANGE ●HIGH NOISE IMMUNITY: 86dB CMR
APPLICATIONS ● PROCESS CONTROL ● FACTORY AUTOMATION ● DATA ACQUISITION
DESCRIPTION The RCV420 is a precision current-loop receiver de- signed to convert a 4–20mA input signal into a 0–5V output signal. As a monolithic circuit, it offers high reliability at low cost. The circuit consists of a pre- mium grade operational amplifier, an on-chip precision resistor network, and a precision 10V reference. The RCV420 features 0.1% overall conversion accuracy, 86dB CMR, and ±40V common-mode input range. The circuit introduces only a 1.5V drop at full scale, which is useful in loops containing extra instrument burdens or in intrinsically safe applications where transmitter compliance voltage is at a premium. The 10V reference provides a precise 10V output with a typical drift of 5ppm/°C. The RCV420 is completely self-contained and offers a highly versatile function. No adjustments are needed for gain, offset, or CMR. This provides three important advantages over discrete, board-level designs: 1) lower initial design cost, 2) lower manufacturing cost, and 3) easy, cost-effective field repair of a precision circuit.
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Product Tags: uart multiplexer ic uart level shifter ic |
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