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Steve's Analog Design Calculators
Powerful, portable, and easy to use—the programs provided on this page offer quick relief for complex and tricky analog design problems. Each program targets a specific design issue and is well documented for easy use. Written by an experienced analog design engineer, these tools provide solutions for other analog design engineers who select, specify, and characterize analog circuits.
Because their equations can be solved for any value given the other parameters, these tools are useful for both circuit design and analysis. Graphing and 2D parametric plotting is also supported. Each program is useful across a broad range of applications. Each program contains an extensive tutorial, installation guide, and quick reference guide. These programs are designed for the HP50g engineering calculator and can also be run on Windows®-based computing platforms using the free emulator:
ACCU-PROGRAM-PACKAGE-V141.ZIP (2321kB)  Accuracy Calculator (ACCU) aids in the design and analysis of data converter application circuits. It calculates the DC accuracy of an ideal data converter. It calculates Resolution in bits and steps, INL, and Accuracy in percent, PPM, decibels, µV, and nA.
ENOB-PROGRAM-PACKAGE-V140.ZIP (1169kB)  Effective Number of Bits Calculator (ENOB) aids in the design and analysis of data converter application circuits. It calculates ENOB, SINAD, resolution, signal bandwidth, oversample rates, DNL, clock jitter, analog noise, and THD.
BGRC-PROGRAM-PACKAGE-V111.ZIP (1388kB)  Bandgap Reference Calculator (BGRC) aids in the design and analysis of a Brokaw bandgap reference circuit. It calculates all circuit parameters and the output voltage as a function of junction temperature.
TNC-PROGRAM-PACKAGE-V150.ZIP (1438kB)  Thermal Noise Calculator (TNC) aids in the analysis of thermal noise found in resistors and other noise sources. It calculates noise voltage (µVpp and µVrms), noise density, Johnson resistance, temperature, upper and lower frequency limits, and corner frequency.
SPCC-PROGRAM-PACKAGE-V130.ZIP (1108kB)  Statistical Process Control Calculator (SPCC) aids in the prediction and analysis of process yield. It calculates defects per million, yield, process shift, standard deviation, mean, and the lower and upper specification limits.
CALC-PROGRAM-PACKAGE-V120.ZIP (235kB)  Calculator Launcher (CALC) simplifies managing and launching multiple calculators found on this page. Only for use on a physical HP50g calculator.
DSC-PROGRAM-PACKAGE-V110.ZIP (1218kB)  Die Size Calculator (DSC) aids in estimating the die size, number of available bonding pads, and available circuit area of an integrated circuit. It calculates total die area, die length, die width, active circuit area, number of bonding pads, bonding pad pitch, saw kerf, and die aspect ratio.
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