Blog

What is the % matching of the lt5400 resistor?

Matched resistors are a set of resistors where an additional parameter (s) is given to link the resistors. For example, resistor ‘A’ and resistor ‘B’ have

What is the CMRR of a resistor mismatch?

  • However, in real circuits, resistor mismatch limits the available CMRR. Consider this circuit configured to attenuate a ±10V signal to a ±2V signal. Using typical surface mount resistors with 2% matching (1% tolerance), the worst-case CMRR contribution from the resistors is 30dB.

What are the advantages of resistor networks?

  • Carefully matched resistor networks, such as those supplied by the LT5400, enable precision matching orders of magnitude better than discrete components, ensuring data sheet specifications are met for precision ICs.

How does resistor mismatch affect the output voltage of an amplifier?

  • In ideal single-ended and fully differential amplifiers, only the input differential level affects the output voltage. However, in real circuits, resistor mismatch limits the available CMRR. Consider this circuit configured to attenuate a ±10V signal to a ±2V signal.

What is the % matching of the lt5400 resistor?What is the % matching of the lt5400 resistor?

Highly matched resistors, such as those provided by the LT5400, available in 0.01%, 0.025% and 0.05% matching, ensure that the designer can approach or meet amplifier data sheet specifications. This design note compares the LT5400 with thick film, 0402, 1% tolerance surface mount resistors.

image-What is the % matching of the lt5400 resistor?
image-What is the % matching of the lt5400 resistor?
Related

What is the CMRR of a resistor mismatch?What is the CMRR of a resistor mismatch?

However, in real circuits, resistor mismatch limits the available CMRR. Consider this circuit configured to attenuate a ±10V signal to a ±2V signal. Using typical surface mount resistors with 2% matching (1% tolerance), the worst-case CMRR contribution from the resistors is 30dB.

Related

What are the advantages of resistor networks?What are the advantages of resistor networks?

Carefully matched resistor networks, such as those supplied by the LT5400, enable precision matching orders of magnitude better than discrete components, ensuring data sheet specifications are met for precision ICs.

Related

What is the value of a 1% resistor?What is the value of a 1% resistor?

Resistors vary in value from their labeled values according to their tolerance rating. A 1% 1 kΩ resistor can be up to 10 Ω off and still be in tolerance. This can result in audible mismatches between the stereo channels in an audio circuit.

Share this Post: