Wideband ADC has low power consumption

13 July 2005 Analogue, Mixed Signal, LSI

Linear Technology's LTC2255 is a 125 Msps, 14-bit ADC that the company claims features excellent AC performance and extremely low power. The device consumes 49% less power than its nearest 14-bit alternative, at 395 mW, significantly lowering the power budget and thermal considerations. The LTC2255 comes in a 5 x 5 mm QFN package with integrated bypass capacitors, requiring only a few small external components. It offers superior low-level input signal performance due to its high linearity, and it is designed with good margin relative to the sample rate for reliable performance over a wide temperature range. At 125 Msps sampling rate, it achieves 72,1 dB SNR and 85 dB SFDR at 70 MHz. The LTC2255 releases alongside five new family members, expanding the existing pin compatible family of low power, high speed ADCs to higher sampling rates of 105 Msps and 125 Msps in resolutions of 10, 12 and 14 bits.

Memec SA, +27 (0)21 674 4103

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