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The LTC2378-20 from Linear Technology (Milpitas, CA) is a 20-bit successive approximation register (SAR) analog to digital converter (ADC) designed to sample analog signals with very high precision. The product achieves its state-of-the-art INL performance by implementing a proprietary architecture that makes the INL independent of CDAC capacitor mismatch, thus making it exceptionally robust to the type of temperature variations and package stress effects that are present in harsh industrial environments. Features include:

· Balances speed, power, and noise, allowing for 104dB signal-to-noise ratio (SNR).
· ±0.5ppm (typical) integral nonlinearity (INL) error with a guaranteed specification of 2ppm (maximum) over temperature.

For more information on the LTC2378-20, visit www.linear.com.

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