The TLC5510 is an 8-bit, 20 MSPS ADC in the industry standard pinout that combines video speed, low power and high accuracy. Implemented with a multi-stage, semi-flash architecture the TLC5510 provides significantly lower power consumption and cost than traditional flash architectures, while maintaining conversion rates of 20 MSPS and Differential Non Linearity (DNL) accuracy of ±0.5 LSB.
The TLC5510 is an excellent choice for both Nyquist based sampled systems and also post-sampled systems such as interfacing to a CCD output. For Nyquist based systems the Integral Non Linearity (INL) is ±0.75 LSB and the DNL is ±0.5 LSB (25°C). The analog input full power bandwidth is -1 dB at 14 Mhz ensuring full signal power out to the Nyquist frequency.
For post sampled systems, such as a CCD imager, the TLC5510 analog input stage is a chopper stabilized comparator. This input stage will allow the analog input voltages down to 0 V. When used with a Correlated Double Sampler (CDS), this reduces the need to level shift the CDS output up to the ADC analog input range as many pipeline ADCs require.
Other features include an inherent Sample and Hold amplifier, tri-statable digital outputs and internal reference network. The internal reference network will provide a standard 2 V full range from VDDA. With 1 external resistor, a wide variety of full scale voltages can be generated.
The TLC5510 requires only a single 5-V supply for operation and
dissipates only 90 mW typical. Many competitive CMOS ADCs will
latch-up if VDDA & VDDD are not equal. The TLC5510 is proven
to be latch-up free and insensitive to supply variations. The
TLC5510 is packaged in a 24-pin SOIC.
Vol 18, August, 1996
Return to Showcase Home Page