Features: 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 TechnologyPinout
SpecificationsSupply voltage range, VCC (see Note 1) .. . . . . . . . . . . . . . . . . . . . 0.5 V to 6.5 V
Input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to VCC + 0.3 V
Output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to VCC + 0.3 V
Positive reference voltage, Vref+ . . . . .. . . . . . . . . . . . . . . . . . . . . . . . VCC + 0.1 V
Negative reference voltage, Vref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 V
Peak input current (any input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Peak total input current (all inputs) . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . ±30 mA
Operating free-air temperature range, TA: TLC1542C, TLC1543C . . 0°C to 70°C
TLC1542I, TLC1543I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40°C to 85°C
TLC1542Q, TLC1543Q . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 40°C to 125°C
TLC1542M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 55°C to 125°C
Storage temperature range, Tstg . . . . . . .. . . . . . . . . . . . . . . . 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from the case for 10 seconds . . . . 260°C
DescriptionThe TLC1542C, TLC1542I, TLC1542M, TLC1542Q,TLC1543C, TLC1543I, and TLC1543Q are CMOS 10-bit switched-capacitor successive-approximation analog-to-digital converters. These devices have three inputs and 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. These devices allow high-speed data transfers from the host.
In addition to a high-speed A/D converter and versatile control capability, these devices TLC1542C, TLC1542I, TLC1542M, TLC1542Q,TLC1543C, TLC1543I, and TLC1543Q 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 A/D conversion, the end-of-conversion (EOC) output goes high to indicate that conversion is complete. The converter incorporated in the devices 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.
TLC1542Q Data Sheet
