 | 8-bit, 40-MSPS
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TI has announced the TLC5540 A/D convertor (ADC) which digitizes high bandwidth analog signals with 8-bit resolution at a minimum conversion rate of 40 MSPS. This product combines high speed performance with low power consumption and cost to create a new price/performance point for high-speed ADCs. Features include an analog bandwidth of 75 MHz (greater than Nyquist), internal sample and hold, internal self-bias reference network, and three-state outputs. Fabricated in a CMOS process, the TLC5540 requires a single 5-V supply for operation and dissipates only 85 mW of power typically at FS = 40 MSPS.
The TLC5540, in a 24-pin SOIC, can also be used for traditional Nyquist-based DSP applications. Specified with both static and dynamic characteristics, the TLC5540 delivers 7.5 effective bits with sampling rate of 20 MSPS and 6.9 effective bits with 40 MSPS. Differential non-linearity is specified at ± 0.75 LSB and integral non-linearity at ± 1.0 LSB. Spurious free dynamic range (SFDR) is typically 46 dBc at 20 MSPS and 44 dBc at 40 MSPS. US pricing is $4.43.
For more information, see the TLC5540 datasheet (requires TI&ME registration).