Part # LM12L458 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM12L458 12-Bit + Sign Data Acquisition System with Self-Calibration

Part Details:

LM12L458 February 2006 LM12L458 12-Bit 12-Bit + Sign Data Acquisition System withSelf-Calibration + General Description Key Specifications Sign The LM12L458 is a highly integrated 3.3V Data Acquisition (f = 6 MHz) CLK System. It combines a fully-differential self-calibrating (cor- n Resolution 12-bit + sign or 8-bit + sign recting linearity and zero errors) 13-bit (12-bit + sign) analog- n Single supply +3V to +5.5V Data to-digital converter (ADC) and sample-and-hold (S/H) with n 13-bit conversion time 7.3 µs extensive analog functions and digital functionality. Up to 32 n 9-bit conversion time 3.5 µs consecutive conversions, using two s complement format,can be stored in an internal 32-word (16-bit wide) FIFO data n 13-bit Through-put rate 106k samples/s (min) Acquisition buffer. An internal 8-word RAM can store the conversion n Comparison time ("watchdog" mode) 1.8 µs (max) sequence for up to eight acquisitions through the n ILE ±1 LSB (max) LM12L458 s eight-input multiplexer. The LM12L458 can also n Power Consumption 15 mW (max) operate with 8-bit + sign resolution and in a supervisory n Stand-by mode 5 µW (typ) "watchdog" mode that compares an input signal against twoprogrammable limits. Programmable acquisition times and Features conversion rates are possible through the use of internalclock-driven timers. n Three operating modes: 12-bit + sign, 8-bit + sign, and "watchdog" System

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LM12L458.pdf Datasheet