MSP08C0147R0GEJ

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Resistor Networks, Arrays are essential components in many electronic products, providing basic signals and various operations. The MSP08C0147R0GEJ is an analog chip from Texas Instruments and is an example of resistor networks, arrays technology.

The MSP08C0147R0GEJ is a silicon-based, fully integrated, 2 or 3 tap switched resistor array, with a common terminal (CT). The device offers four different built-in configurations (MSP08C0147, MSP08C01XR, MSP08C01XR2 and MSP08C01XR3) and a range of options to increase the number of taps or configure the array for resistance measurements. The device is available with 4 to 16 bumps, depending on the selected configuration.

The MSP08C0147R0GEJ is suitable for applications in signal amplification, impedance matching, filtering, device protection, DC-biasing and voltage division. It can also be used in a design where the output voltage depends on the selected resistors in the array. Also, it can be used for current measurements, as the voltage across a resistor in the array is proportional to the current.

The MSP08C0147R0GEJ offers 4 different configurations with 2 or 3 electrical taps. These configurations include CMOS switches that open or close connections of the resistors in the array. The circuits are impedance matched to drive the CMOS switches without a large power requirement. The common output terminal (CT) gets connected to the output when each switch is enabled. Each tap of the array can be enabled or disabled by selecting its corresponding bit in the selection input register.

The device operates in two modes. In the static mode, the output voltage is determined by the ratio of the two selected resistors. In the dynamic mode, the output voltage is determined by the ratio of the two selected resistors, plus a fraction of the voltage across the third resistor.

The MSP08C0147R0GEJ has an on-chip register that selects any of the four pre-configured resistor arrays. The device also has three separate supply pins (VCC, 0V and VSU) that enable low power operation and high accuracy. The switches in the device are controlled via an integrated control logic and can be enabled or disabled using the integrated current sensing logic or 3-state input control logic. It can also be powered using external or on-chip reference voltages.

The MSP08C0147R0GEJ is designed with an on-die temperature sensor which measures the temperature of the chip and adjusts the output voltage accordingly. This feature makes it possible to adjust the gain accuracy of the device over a wide temperature range. The device also features ESD protection to protect the device from damage due to electrostatic discharge.

In summary, the MSP08C0147R0GEJ is an integrated resistor array offering a wide range of applications for signal amplification, impedance matching, filtering, device protection, DC biasing and voltage division. The device has an on-chip temperature sensor and ESD protection and can be powered via an external or on-chip reference voltage. Additionally, it is able to operate in both static and dynamic modes.

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