Maxim Integrated Products has introduced a high-performance family of pin-compatible 12-bit, 10-bit, and 8-bit analog-to-digital data converters (ADCs) with speed grades up to 250 Msps. However, according to Maxim, the 12-bit ADC will initially offer a speed of 170 Msps.

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This family of high-performance ADCs includes the MAX1213 (12-bit, 170 Msps), MAX1122 (10-bit, 170 Msps), MAX1123 (10-bit, 210Msps), MAX1124 (10-bit, 250 Msps), and MAX1121 (8-bit, 250 Msps). These converters offer exceptional dynamic performance at high input frequencies. They provide unmatched dynamic performance, including signal-to-noise ratio (SNR), spurious-free dynamic range (SFDR), and intermodulation distortion (IMD).

The 12-bit MAX1213 offers a SNR of 65.5dB that remains flat (within 1.5dB) up to 250 MHz input frequency. The MAX1213 also has a noise power ratio (NPR) of 62 dB. At the 10-bit level, the MAX1123 delivers an exceptional SNR of 57.5dB that remains flat (within 1.5dB) up to 500 MHz input frequency.

At the 8-bit level, the MAX1121 delivers a SNR of 48.8dB and a SFDR of 68dBc. Differential nonlinearity is similarly impressive at +0.1LSB.

The combination of high-IF dynamic performance and high sample rate allows the user to select receiver architectures that can sample large bandwidths while eliminating intermediate, RF downconversion stages. This design flexibility reduces system cost and complexity, and saves board space.

The MAX1213/MAX1122/MAX1123/MAX1124/MAX1121 are ideal for applications such as cable and cellular infrastructures, broadband-communication systems, instrumentation, and high-performance video equipment. These devices are available in a space-saving 68-pin QFN-EP package specified for the extended temperature range (-40 °C to +85 °C). Prices start at $23.85 (1000-up, FOB USA). An evaluation kit is available to speed designs