TLV8542DR Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The TLV8542DR is a part of the instrumentation amplifiers range, which comes under the category of linear amplifiers. Operational amplifiers (op-amps), buffers amplifiers, and instrumentation amplifiers are all part of the linear amplifiers range, and each offers unique functions and capabilities. TLV8542DR is an adaption of the vanilla TLV8542 and combines excellent performance, and exceptional safety features.

The TLV8542DR is a low-voltage single-ended operational amplifier. The device is intended for single-supply instrumentation applications, such as medical diagnosis equipment, conditioning circuitry for data acquisition systems, analyzers, and automated test equipment (ATE).

The device operates from a single 2.7V to 5.5V supply and can be used for measuring low-level signals which usually require dual supplies. The device is powered through a rail-to-rail interface, and each input and output stages can swing rail-to-rail, while the output swing configuration will depend on the supply voltage. It achieves a low noise voltage of 2nV/√Hz and wide bandwidth of 7MHz at 2.7V, and a gain bandwidth of 400kHz at 5.5V. It also offers wide temperature operating range of -40°C to +125°C.

This device features an inbuilt current compensation block which suppresses the parasitic oscillation and improves the amplifier\'s phase margin. It also offers precise offset adjustment with two external resistors by adjusting the common-mode voltage. It will be available in a small footprint, 8SOT23-5 package, with peak output current of 30mA at a supply voltage of 5V. The fast settling time includes converter into current limiting, eliminating clock bounce and DC offset drift.

The amplifier can be used for applications requiring AC and DC accuracy. It offers good dynamic range, with high power and low noise, as well as wide voltage range and temperature withstand capability. TLV8542DR amplifiers are particularly suitable for applications such as medical diagnosis, conditioning circuitry for data acquisition systems, and automated test equipment. With its fast settling time, it is also suitable for applications such as filters, data converters, motor drive control systems, power supply control systems, and so on.

The amplifier is based on the traditional instrumentation amplifier topology, with differential pairs of transistors and an output stage connected in parallel to effect current sharing. The device is configured as a three-stage, double-ended operation amplifier. The three stages consist of a differential input stage, a high common-mode gain stage and a current output stage. The input stage comprises two differential pairs of FET transistors, with the high common-mode gain stage containing both bipolar transistors and MOSFETs, and the output stage comprising two series connected bipolar transistors in a current-sharing configuration.

The amplifier has a variable gain, with the gains setting by an external resistor connected between the input stage and the gain stage, and an offset control resistor connected between thegain stage and the output stage. The amplifier\'s output stage is in parallel with two bipolar transistors to ensure current sharing, which increases the output stage\'s voltage handling capability while keeping power consumption and thermal dissipation to a minimum.

The amplifier features extremely low noise, high gain, and fast settling time, and its high power supply rejection ratio (PSRR) allows any unwanted supply voltage noise to be easily rejected. This helps to keep the amplifier\'s output signal nice and clean, and helps to reduce the overall noise in the system.

In summary, the TLV8542DR is a low-voltage, wide-temperature range, single-ended operational amplifier that is well suited for instrumentation applications. It offers excellent performance, universal applicability, and is especially useful for applications requiring high AC and DC accuracy. Its low noise, high gain and wide supply voltage range make it a good choice for applications such as medical diagnosis, conditioning circuitry for data acquisition systems, and automated test equipment.

The specific data is subject to PDF, and the above content is for reference