Product Details
●The AD8230 is a low drift, differential sampling, precision instrumentation amplifier. Auto-zeroing reduces offset voltage drift to less than 50 nV/°C. The AD8230 is well-suited for thermocouple and bridge transducer applications. The AD8230’s high CMR of 110 dB (minimum) rejects line noise in measurements where the sensor is far from the instrumentation. The 16 V rail-to-rail, common-mode input range is useful for noisy environments where ground potentials vary by several volts. Low frequency noise is kept to a minimal 3 μV p-p, making the AD8230 perfect for applications requiring the utmost dc precision. Moreover, the AD8230 maintains its high performance over the extended industrial temperature range of −40°C to +125°C.
●Two external resistors are used to program the gain. By using matched external resistors, the gain stability of the AD8230 is much higher than instrumentation amplifiers that use a single resistor to set the gain. In addition to allowing users to program the gain between 101 and 1000, users can adjust the output offset voltage.
●The AD8230 is versatile yet simple to use. Its auto-zeroing topology significantly minimizes the input and output transients typical of commutating or chopper instrumentation amplifiers. The AD8230 operates on ±4 V to ±8 V (+8 V to +16 V) supplies and is available in an 8-lead SOIC.
●Applications
● Pressure measurements
● Temperature measurements
● Strain measurements
● Automotive diagnostics
●Data Sheet, Rev. B, 9/07
●### Features and Benefits
● Resistor programmable gain range: 101 to 1000
● Supply voltage range: ±4 V to ±8 V
● Rail-to-rail input and output
● Maintains performance over −40°C to +125°C
● Excellent ac and dc performance
●110 dB minimum CMR @ 60 Hz, G = 10 to 1000
●10 μV maximum offset voltage (RTI, ±5 V operation)
●50 nV/°C maximum offset drift
●20 ppm maximum gain nonlinearity
