Single_cell_V_F_converter__25_Hz_to_10_kHz

Published:2009/7/23 23:51:00 Author:Jessie | From:SeekIC

Fig. 12-1 7 This circuit is similar to that of Fig. 12-11, except that a 0- to 1-V input produces a 25-Hz to 10-kHz output. Transfer linearity is 0.25%, drift is 250 ppm/℃, and current consumption is about 205μA (compared to the 125-μA drain in the Fig. 12-11 circuit). To trim, first select the 100-kΩ resistor so that VCLAMP (Q2 emitter) is at 1 V. Next, apply 2.5 mV at the input and select the resistor value indicated at the C1 input for 25-Hz output. Then, apply exactly 1 V and adjust the 10-kHz trim for a 10-kHz output. Linear Technology Linear Applications Handbook 1990, p AN15-1.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/Single_cell_V_F_converter__25_Hz_to_10_kHz.html

Print this Page | Comments | Reading(3)