10.6.3 Sample layout of matched pair devices ================================================ **Sample layout of matched pair transistors:** - Transistor “A” expected to be matched with transistor “B” - Total width of transistor A = 2*W - “D” are the dummy transistors not connected to the circuit **(a) Cross coupled connection layout** .. image:: images/match_pair4.png :width: 600 :align: center :alt: Cross coupled connection layout **(b) Interleave kind of transistor layout** .. image:: images/match_pair5.png :width: 600 :align: center :alt: Interleave kind of transistor layout **Sample layout of matched pair Capacitors:** - Capacitor “A” expected to be matched with Capacitor “B” - Total area of capacitor “A” = 2* unit cell area (for Cross couple layout below) - “D” are the dummy capacitors not connected to the circuit **(a) Cross coupled connection layout** .. image:: images/match_pair6.png :width: 600 :align: center :alt: Cross coupled connection layout **(b) Side by side layout** .. image:: images/match_pair7.png :width: 600 :align: center :alt: Side by side layout **Sample layout of matched pair Resistors:** - Resistor “A” expected to be matched with Resistor “B” - Total length of resistor “A” = 4* L. - “D” are the dummy resistors not connected to the circuit **(a) Cross coupled type of layout** .. image:: images/match_pair8.png :width: 600 :align: center :alt: Cross coupled type of layout **(b) Non-Interleaved type of layout.** .. image:: images/match_pair9.png :width: 600 :align: center :alt: Non-Interleaved type of layout