Duplicate and cross-connect Figure 1's circuitry to get a two-terminal programmable resistance

Download PDF

Other Materials from the Main Document

• Article «A precision digital rheostat»
• Figure 1. A precision digital rheostat that synthesizes an accurate programmed resistance equal to reference resistor R1 linearly multiplied by U1's R_BW/R_AB
• Figure 2. Linear relationship between R and R_BW showing the circuit synthesizes an accurate programmed resistance equal to reference resistor R1 linearly multiplied by U1's R_BW/R_AB
• Figure 3. Graphs for G_A2 (red) and R/R1 (black) versus R_BW/R_AB on the x-axis. When the programmed value for R goes down, G_A2 must go up
• Figure 4. Duplicate and cross-connect Figure 1's circuitry to get a two-terminal programmable resistance