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.