Controlled Baseline
− One Assembly/Test Site, One Fabrication
Site
Extended Temperature Performance of
−40°C to 125°C
Enhanced Diminishing Manufacturing
Sources (DMS) Support
Enhanced Product Change Notification
Qualification Pedigree†
10-Bit Resolution A/D Converter
11 Analog Input Channels
Three Built-In Self-Test Modes
Inherent Sample-and-Hold Function
Total Unadjusted Error . . . ±1 LSB Max
On-Chip System Clock
End-of-Conversion (EOC) Output
Terminal Compatible With TLC542
CMOS Technology

description
The TLC1542-EP and TLC1543-EP are CMOS 10-bit switched-capacitor successive-approximation
analog-to-digital converters. These devices have three inputs, a 3-state output chip select (CS), input/output
clock (I/O CLOCK), address input (ADDRESS), and data output (DATA OUT)] that provide a direct 4-wire
interface to the serial port of a host processor. The TLC1542-EP and TLC1543-EP allow high-speed data
transfers from the host.
In addition to a high-speed A/D converter and versatile control capability, the TLC1542-EP and TLC1543-EP
have an on-chip 14-channel multiplexer that can select any one of 11 analog inputs or any one of three internal
self-test voltages. The sample-and-hold function is automatic. At the end of the A/D conversion, the
end-of-conversion (EOC) output goes high to indicate that conversion is complete. The converter incorporated
in the TLC1542-EP and TLC1543-EP 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 free-air temperature range.