The LTC1289 is a 3V data acquisition component which contains a serial I/O successive approximation A/D converter. The device specifications are guaranteed at a supply voltage of 2.7V. It uses LTCMOS™ switched capacitor technology to perform a 12-bit unipolar, or 11-bit plus sign bipolar A/D conversion. The 8 channel input multiplexer can be configured for either single-ended or differential inputs (or combinations thereof). An on-chip sample and hold is included for all single-ended input channels. When the LTC1289 is idle it can be powered down in applications where low power consumption is desired. The serial I/O is designed to be compatible with industry standard full duplex serial interfaces. It allows either MSB- or LSB- first data and automatically provides 2’s complement output coding in the bipolar mode. The output data word can be programmed for a length of 8, 12 or 16 bits. This allows easy interface to shift registers and a variety of processors. Applications * Minimum Guaranteed Supply Voltage: 2.7V * Resolution: 12 Bits * Fast Conversion Time: 26µs Max Over Temp * Low Supply Currents: 1.0mA * Single Supply 3.3V or ±3.3V Operation * Software Programmable Features * Unipolar/Bipolar Conversions * 4 Differential/8 Single-Ended Inputs * Variable Data Word Length * Power Shutdown * Built-In Sample-and-Hold * Direct 4-Wire Interface to Most MPU Serial Ports and all MPU Parallel Ports * 25kHz Maximum Throughput Rate * Available in 20-Lead PDIP and 20-Lead SW Packages https://elecena.pl/product/249693/3-volt-single-chip-12-bit-data-acquisition-system 2007-03-02 https://elecena.pl/product/249693/3-volt-single-chip-12-bit-data-acquisition-system 2016-04-13 https://elecena.pl/product/249693/3-volt-single-chip-12-bit-data-acquisition-system 2025-01-18