LM12L458 - Texas Instruments

LM12L458 12-Bit + Sign Data Acquisition System

The LM12L458 is a highly integrated 3.3V Data Acquisition System. It combines a fully-differential self-calibrating (correcting linearity 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 consecutive conversions, using two's complement format.

Features

1
•2 Three Operating Modes: 12-Bit + Sign, 8-Bit + Sign, and “Watchdog”
• Single-Ended or Differential Inputs
• Built-In Sample-and-Hold
• Instruction RAM and Event Sequencer
• 8-Channel Multiplexer
• 32-Word Conversion FIFO
• Programmable Acquisition Times and Conversion Rates
• Self-Calibration and Diagnostic Mode
• 8- or 16-Bit Wide Data Bus Microprocessor or DSP Interface
• CMOS Compatible I/O APPLICATIONS
• Data Logging
• Process Control
• Energy Management
• Medical Instrumentation KEY SPECIFICATIONS
• (fCLK = 6 MHz)
• Resolution: 12-Bit + Sign or 8-Bit + Sign
• Single Supply: +3 to +5.5.