TLC5510 - 8-Bit, 20-MSPS Analog-to-Digital Converter (ADC)

The TLC5510 and TLC5510A are CMOS, 8-bit, 20 MSPS analog-to-digital converters (ADCs) that utilize a semiflash architecture. The TLC5510 and TLC5510A operate with a single 5-V supply and typically consume only 130 mW of power. Included is an internal sample-and-hold circuit, parallel outputs with high-impedance mode, and internal reference resistors.

The semiflash architecture reduces power consumption and die size compared to flash converters. By implementing the conversion in a 2-step process, the number of comparators is significantly reduced. The latency of the data output valid is 2.5 clocks.

The TLC5510 uses the three internal reference resistors to create a standard, 2-V, full-scale conversion range using V_DDA. Only external jumpers are required to implement this option and eliminates the need for external reference resistors. The TLC5510A uses only the center internal resistor section with an externally applied 4-V reference such that a 4-V input signal can be used. Differential linearity is 0.5 LSB at 25°C and a maximum of 0.75 LSB over the full operating temperature range. Typical dynamic specifications include a differential gain of 1% and differential phase of 0.7 degrees.

The TLC5510 and TLC5510A are characterized for operation from -20°C to 75°C.

• Analog Input Range
  • TLC5510...2 V Full Scale
  • TLC5510A...4 V Full Scale
• 8-Bit Resolution
• Integral Linearity Error
       ±0.75 LSB Max (25°C)
       ±1 LSB Max (–20°C to 75°C)
• Differential Linearity Error
       ±0.5 LSB Max (25°C)
       ±0.75 LSB Max (–20°C to 75°C)
• Maximum Conversion Rate
       20 Mega-Samples per Second (MSPS) Max
• 5-V Single-Supply Operation
• Low Power Consumption
       TLC5510...127.5 mW Typ
       TLC5510A...150 mW Typ
       (includes reference resistor dissipation)
• TLC5510 is Interchangeable With Sony CXD1175
• applications
  • Digital TV
  • Medical Imaging
  • Video Conferencing
  • High-Speed Data Conversion
  • QAM Demodulators