LM12454 Description
LM12454/LM12458/LM12H458 12-Bit + Sign Data Acquisition System with Self-Calibration July 1999 LM12454/LM12458/LM12H458 12-Bit + Sign Data Acquisiti.
The LM12454, LM12458, and LM12H458 are highly integrated Data Acquisition Systems.
LM12454 Features
* n Three operating modes: 12-bit + sign, 8-bit + sign, and “watchdog” n Single-ended or differential inputs n Built-in Sample-and-Hold and 2.5V bandgap reference n Instruction RAM and event sequencer n 8-channel (LM12(H)458), 4-channel (LM12454) multiplexer n 32-word conversion FIFO n Programmable ac
LM12454 Applications
* information can be found in applications notes AN-906, AN-947 and AN-949.
Key Specifications
(fCLK = 5 MHz; 8 MHz, H)
j j j j j j j j j j
Resolution 13-bit conversion time 9-bit conversion time 13-bit Through-put rate Comparison time (“watchdog” mode) ILE VIN range Power dissipation Stand-by mode
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