12-bit Sign Data Acquisition System With Self-calibration - National Semiconductor

The LM12454 LM12458 and LM12H458 are highly inte- grated Data Acquisition Systems. Operating on just 5V, they combine a fully-differential self-calibrating (correcting linear- ity and zero errors) 13-bit (12-bit + sign) Analog-to-digital converter (ADC) and sample-and-hold (S/H) with extensive Analog functions and digital functionality. Up to 32 consecu- tive conversions, using twos complement format, CAN be stored in an internal 32-word (16-bit wide) FIFO data Buffer An internal 8-word RAM CAN store the conversion sequence for up to eight acquisitions through the LM12(H)458s eight-input multiplexer. The LM12454 has a four-channel multiplexer, a differential multiplexer output, and a differential S/H input. The LM12454 and LM12(H)458 CAN also operate with 8-bit + sign resolution and in a supervisory watchdog mode that compares an input signal against two program- mable limits. Programmable acquisition times and conversion rates are possible through the use of internal clock-driven Timers The reference voltage input CAN be externally generated for ab- solute or ratiometric operation or CAN be derived using the in- ternal 2.5V bandgap reference. All Registers RAM, and FIFO are directly addressable through the high speed Microprocessor Interface to either an 8-bit or 16-bit databus. The LM12454 and LM12(H)458 in- clude a direct memory access (DMA) Interface for high-speed conversion data transfer. By National Semiconductor Corporation
LM12454 's PackagesLM12454 's pdf datasheet
LM12454CIV




LM12454 Pinout, Pinouts
LM12454 pinout,Pin out
This is one package pinout of LM12454,If you need more pinouts please download LM12454's pdf datasheet.

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