Ratiometric 16-bit LVDT-to-Digital Converter

2S58 Ignores Changes in Excitation Voltage, Frequency, & Waveshape; Has < 0.01% Nonlinearity, 1-LSB Repeatability, 10 to 50 V/V Gain

The 16-bit Analog Devices 2S58 is the newest member of a proven family of data converters for linear variable differential transformers (LVDTs) and their rotary version, RVDTs–first introduced in these pages in 1986 ("The Easy Way to Interface an LVDT to Digital," Analog Dialogue 20-2, pp.19-21). It enjoys all the benefits of the ratiometric technique, plus improved linearity and superior sensitivity. Read full article