Issue No. 09 - September (2003 vol. 52)
Khalid H. Abed , IEEE
Raymond E. Siferd , IEEE
<p><b>Abstract</b>—This paper presents a VLSI implementation of a unique 32-bit antilogarithmic converter, which generates data for some digital-signal-processing (DSP) applications. Novel antilogarithm correcting algorithms are developed and implemented with low-power and hardware-efficient correcting circuits. The VLSI implementations of these algorithms are much smaller than other hardware intensive algorithms found in the literature. The converter is implemented using 0.6 <tmath>\mu</tmath>m CMOS technology, and its combinational logic implementation requires <tmath>1,500\lambda\times2,800\lambda</tmath> of chip area. The 32-bit antilogarithmic converter computes the antilogarithm in a single clock cycle and runs at 100 MHz and consumes 81 milliwatts.</p>
Antilogarithm, binary logarithm, leading-one detector, logarithmic number system (LNS), logarithmic shifter, low-power circuits.
K. H. Abed and R. E. Siferd, "VLSI Implementation of a Low-Power Antilogarithmic Converter," in IEEE Transactions on Computers, vol. 52, no. , pp. 1221-1228, 2003.