Update: 29 September, 2023
The LM12434 and LM12-L-438 are highly integrated data acquisition systems operating on 3V to 5V. They combine a fully-differential self-calibrating 13-bit (12-bit signed) analog-to-digital converter (ADC) and sample-and-hold (S&H) with extensive analog and digital functionality. Up to 32 consecutive conversions can be stored in an internal 32-word (16-bit wide) FIFO data buffer. An internal 8-word instruction RAM can store the conversion sequence for up to eight acquisitions through the LM12-L-438's eight-input multiplexer. The LM12434 has a four-channel multiplexer, a differential multiplexer output, and a differential S&H input. The LM12434 and LM12-L-438 can also operate with 8-bit signed resolution and in a supervisory 'watchdog' mode that compares an input signal against two programmable limits. Acquisition times and conversion rates are programmable through the use of internal clock-driven timers. The differential reference voltage inputs can be externally driven for absolute or ratiometric operation. All registers, RAM, and FIFO are directly accessible through the high-speed and flexible serial I/O interface bus. The serial interface bus is user selectable for interface connections.
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MD5 Checksum: 652B3FE90285C8C00DDF0F72F055D658
Publication date: 10 May, 2012
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