TLC2543-Q1 Datasheet | Texas Instruments

ą D Qualified for Automotive Applications D 12-Bit Resolution A/D Converter D 10-µs Conversion Time Over Operating Temperature D 11 Analog Input Channels D Three Built-In Self-Test Modes D Inherent Sample-and-Hold Function D Linearity Error . . . ± 1 LSB Max D On-Chip System Clock D End-of-Conversion Output D Unipolar or Bipolar Output Operation (Signed Binary With Respect to 1/2 the Applied Voltage Reference) D Programmable MSB or LSB First D Programmable Power Down D Programmable Output Data Length D CMOS Technology D Application Report Available‡ TLC2543ĆQ1 12ĆBIT ANALOGĆTOĆDIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 ANALOG INPUTS SGLS218D - NOVEMBER 2003 - REVISED MAY 2008 DB OR DW PACKAGE (TOP VIEW) AIN0 AIN1 AIN2 AIN3 AIN4 AIN5 AIN6 AIN7 AIN8 GND 1 2 3 4 5 6 7 8 9 10 20 VCC 19 EOC 18 I/O CLOCK 17 DATA INPUT 16 DATA OUT 15 CS 14 REF + 13 REF - 12 AIN10 11 AIN9 description The TLC2543 is a 12-bit, switched-capacitor, successive-approximation, analog-to-digital converters. Each device, with three control inputs [chip select (CS), the input-output clock, and the address input (DATA INPUT)], is designed for munication with the serial port of a host processor or peripheral through a serial 3-state output. The device allows high-speed data transfers from the host. In addition to the high-speed converter and versatile control capability, the device has an on-chip 14-channel multiplexer that can select any one of 11 inputs or any one of three internal self-test voltages. The sample-and-hold function is automatic. At the end of conversion, the end-of-conversion (EOC) output goes high to indicate that conversion is plete. The converter incorporated in the device Features differential high-impedance reference inputs that facilitate ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noise. A switched-capacitor design allows low-error conversion over the full operating temperature range. ORDERING INFORMATION{ PACKAGE}...