features
8-Bit Resolution
Differential Linearity Error
− ±0.3 LSB Typ, ±1 LSB Max (25°C)
− ±1 LSB Max
Integral Linearity Error
− ±0.6 LSB, ±0.75 LSB Max (25°C)
− ±1 LSB Max
Maximum Conversion Rate of
40 Megasamples Per Second (MSPS) Max
Internal Sample and Hold Function
5-V Single Supply Operation
Low Power Consumption . . . 85 mW Typ
Analog Input Bandwidth . . . ≥75 MHz Typ
Internal Reference Voltage Generators

applications
Quadrature Amplitude Modulation (QAM)
and Quadrature Phase Shift Keying (QPSK)
Demodulators
Digital Television
Charge-Coupled Device (CCD) Scanners
Video Conferencing
Digital Set-Top Box
Digital Down Converters
High-Speed Digital Signal Processor Front
End

description
The TLC5540 is a high-speed, 8-bit analog-to-digital converter (ADC) that converts at sampling rates up to 40
megasamples per second (MSPS). Using a semiflash architecture and CMOS process, the TLC5540 is able
to convert at high speeds while still maintaining low power consumption and cost. The analog input bandwidth
of 75 MHz (typ) makes this device an excellent choice for undersampling applications. Internal resistors are
provided to generate 2-V full-scale reference voltages from a 5-V supply, thereby reducing external
components. The digital outputs can be placed in a high impedance mode. The TLC5540 requires only a single
5-V supply for operation.