TSC2011IST Amplifier: Pinout, CAD Model and Datasheet

The TSC2011IST is especially designed to accurately measure the current by amplifying the voltage across a shunt resistor connected to its input. Furthermore, Huge range of Semiconductors, Capacitors, Resistors and IcS in stock. Welcome RFQ.

TSC2011IST Pinout

Pin name

Symbol

Footprint

3D Model

• Wide common mode voltage: -20 to 70 V

• Offset voltage: ±200 µV max

• 2.7 to 5.5 V supply voltage

• Different gain available

–TSC2010: 20 V/V

–TSC2011: 60 V/V

–TSC2012: 100 V/V

• Gain error: 0.3% max

• Offset drift: 5 µV/ ℃ max

• Quiescent current: 20 µA in shutdown mode

• SO8 and MiniSO8 package

Block diagram

The TSC2011 is a fixed gain current sensing amplifier of 60 V/V. Thanks to a thin film resistor, the TSC2011 offers an extremely precise gain and a very high CMRR performance even in a high frequency range. Moreover, by fixing the output common mode voltage, the TSC2011 can be either used as unidirectional or bidirectional current sensing amplifier. The TSC2011 provides an extended input common range from -20 V below the negative supply voltage, and up to 70 V allowing either low-side or high-side current sensing, while the TSC2011 device can operate from 2.7 to 5.5 V. The parameters are very stable in the full Vcc range and characterization curves show the TSC2011 characteristics at 2.7 V and 5.0 V. Moreover, the main specifications are guaranteed in an extended temperature range from -40 to 125 ℃. 

The main feature of the TSC2011 is the ability to work with an input common mode voltage largely beyond the power supply Vcc range (2.7 V to 5.5 V). It is ideal, for example for automotive applications where a reverse battery can be supported by the TSC2011 without any damage. It also works with 48 V battery applications as the TSC2011 can support and measure the current on line at voltage up to 70 V. No additional protective components are needed in that range.

Some ADCs get their signal thanks to a sample and hold capacitor. If before a sampling this capacitance is fully discharged, a fast current load can appear on the output of the TSC2011 during the sampling phase. The scope probe in the figure below shows the output voltage of the TSC2011 excited by a 40 pF capacitor with a 3.3 Vpp signal at 50 kHz to simulate the sample and hold circuit of the ADC120. The ADC120 has a conversion rate of 50 ksps, which is perfect to sample and hold the output of the TSC2011 without any error.

The graph shows the behavior of the output of the TSC2011 under the worst case condition, as for example, when there is an ADC120 channel change between two measurements. If a single channel is used, for sure the change on the sample and hold capacitance are very small, and so the recovery time is extremely low as described by the figure below. The effect of the ADC sampling and hold can be easily smoothed thanks to an RC filter. As suggested on the schematic below. The capacitor of the external filter must be chosen much higher than the internal ADC capacitor, in order to easily absorb the sudden voltage variation on the output due to the sampling and hold of the ADC. The resistance must be chosen accordingly to the application speed of the system in order not to impact the whole application. The main advantage of using an RC filter is to have an antialiasing system. For sure the used ADC must have sample and hold conversion in accordance with the RC filter value, in order to let the output recover before sampling.

STMicroelectronics TSC2011IST technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics TSC2011IST.

• High-side current sensing

• Low-side current sensing

• Data acquisition and instrumentation

• Test and measurement equipment

• Industrial process control

• Motor control

• Solenoid control

MiniSO8 Package Outline

MiniSO8 mechanical data

STMicroelectronics is a globally recognized semiconductor company. They are dedicated to developing semiconductor solutions for various microelectronics applications. STMicroelectronics enjoys unrivaled silicon and system expertise, strong manufacturing strength, IP portfolio,and solid relationships with their strategic partners. Based on these advantages, STMicroelectronics has become a pioneer in System-on-Chip (SoC) technology and its products has a positive effect in realizing today's convergence trends.

Download datasheets and manufacturer documentation for STMicroelectronics TSC2011IST.