RT2232B7TR7

Resistor Networks, Arrays

The RT2232B7TR7 is a resistor array which consists of two groups of series-connected resistor blocks, each containing 32 resistors. This has the effect of providing a low resistance and equal distribution of current, while also reducing thermal distortion and providing a low output impedance for improved signal integrity.

The resistor array consists of two blocks – Block A and Block B. Each block consists of 32 resistors in series. Each resistor also contains failsafe features to protect the device from all types of overloads. The total resistance of each block depends on the sum of individual resistances. When all 32 resistors are connected in series, the total resistance of each block is 0.7 Ohms.

The RT2232B7TR7 has a wide application field, such as power supplies, motor control, audio, and RF applications. As an analog circuit component, its importance lies in its low resistance and equal distribution of current, while also reducing thermal distortion and providing a low output impedance for improved signal integrity.

The RT2232B7TR7 also works as a current-limiting resistor, allowing higher currents than otherwise possible with standard resistors. The resistor array eliminates thermal runaway and microphonics, thus enhancing noise immunity in power supplies and other applications. In addition, this resistor array improves the linearity of signal paths, allowing for wider frequency and more accurate data transmission.

The usual working principle of the resistor array is to sense the voltage drop across the series resistors. When the voltage exceeds a certain limit in the base-emitter junction, the transistor is reverse biased, allowing the current to flow uninterrupted through the resistor array. Thus, it acts as an open switch, while still allowing for small changes in current to take place without inducing thermal losses in the resistor.

The RT2232B7TR7 is commonly used in applications that require low resistance, equal current distribution, easy thermal convection, good signal integrity, and low output impedance. Its resistance tolerance is ±1%, and it can operate up to 70°C. This device can be connected in either single or multiple pairs to form a low resistance network.

In conclusion, the RT2232B7TR7 resistor array is a valuable analog component in many applications. Its low resistance and equal distribution of current make it ideal for use in power supplies, motor control, audio, and RF applications. Its failsafe features, improved noise immunity, and thermal convection also make it a great choice for many applications.