Texas Instruments has rolled out three new families of 36 V single, dual and quad operational amplifiers with industrial precision.
The OPAx140 JFET input op-amp series features rail-to-rail output, as well as low noise and wide supply range. The OPAx209 precision op-amp series combines rail-to-rail output and very low voltage noise density with wide gain bandwidth. The general-purpose OPAx171 family features tiny packages to reduce board space.
The OPAx140 series was designed for applications needing high accuracy and stability, such as high-impedance sensor signal conditioning, medical instrumentation and interfacing with precision data converters. Ultra-low drift down to 1 μV/°C and low offset voltage of 120 μV provide high accuracy and stability over the full industrial temperature range, while the 11 MHz gain bandwidth and a high slew rate of 20 V/µs enable use in precision data acquisition systems. Low noise of 5,1 nV/rtHz at 1 kHz and low frequency noise of 250 nVpp from 0,1 Hz to 10 Hz enable high-sensitivity, high-resolution systems across a wide frequency range. Supply range is 4,5 V (+2,25 V) to 36 V (+18 V) and quiescent current is as low as 2 mA.
The OPAx209 series was engineered for fast, high-precision data acquisition applications, such as automated test equipment, medical instrumentation and professional audio pre-amplifiers. Very low voltage noise density of 2,2 nV/rtHz and ultra-low, 0,1 Hz to 10 Hz noise of 130 nVpp maximise resolution when interfacing with data converters. The devices exhibit gain bandwidth of 18 MHz, fast settling time to 16-bit accuracy or 0,0015%, excellent DC precision of up to 150 μV offset, and low drift over temperature for driving analog-to-digital converters (ADCs) or amplifying outputs from digital-to-analog converters (DACs). The series is fully specified over a wide single- or dual-supply range of 4,5 V (+2,25 V) to 36 V (+18 V) along with rail-to-rail output swing.
The OPAx171 series provides a combination of features to simplify general purpose op amp selection. It is a cost-effective, low-power solution for space-constrained industrial applications, such as tracking amplifiers in power modules, merchant power supplies, transducer amplifiers and battery-powered test equipment. It is offered in SOT553 (single) and VSSOP-8 (dual) micro packages. The SOT553 measures 1,6 x 1,6 x 0,6 mm and the VSSOP-8 measures 2,3 x 2 x 0,9 mm. The devices are fully specified over a single- or dual-supply range of 2,7 V (+1,35 V) to 36 V (±18 V) with rail-to-rail input and output swing and common mode rejection ratio of 90 dB. Low quiescent current of 475 μA per channel (typical) enables low power consumption for battery-powered operation.
For more information contact EBV Electrolink, +27 (0)21 402 1940, capetown@ebv.com, www.ebv.com
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