| 摘要 |
<p>A current reference (10) includes first and second connected resistors (R1 and R2), a voltage source (12) independent of a supply voltage (Vdd). The voltage source is applied to the first and second resistors (R1 and R2) and has a positive temperature coefficient (TC). The first resistor (R1) has a TC less than the voltage source (12) TC and the second resistor (R2) has a TC greater than the voltage source (12) TC. A resistance value of each of the first and second resistors is set such that a combined TC of the first and second resistors is essentially equal to the voltage source (12) TC such that the current reference (10) produces a current essentially independent of a temperature of the current reference (10) and the supply voltage (Vdd).</p> |
