SLOS412E April 2003 – November 2024 RC4580
PRODUCTION DATA
Some applications require differential signals. Figure 7-1 shows a simple circuit to convert a single-ended input of 2V to 10V into differential output of ±8V on a single 15V supply. The output range is intentionally limited to maximize linearity. The circuit is composed of two amplifiers. One amplifier acts as a buffer and creates a voltage, VOUT+. The second amplifier inverts the input and adds a reference voltage to generate VOUT–. Both VOUT+ and VOUT– range from 2V to 10V. The difference, VDIFF, is the difference between VOUT+ and VOUT–.