The MAX12559 is a dual, 3.3V, 14-bit analog-to-digital converter (ADC) featuring fully differential wideband track-and-hold (T/H) inputs, driving internal quantizers. The MAX12559 is optimized for low power, small size, and high dynamic performance in intermediate frequency (IF) and baseband sampling applications. This dual ADC operates from a single 3.3V supply, consuming only 980mW while delivering a typical 72.2dB signal-to-noise ratio (SNR) performance at a 175MHz input frequency. The T/H input stages accept single-ended or differential inputs up to 350MHz. In addition to low operating power, the MAX12559 features a 0.5mW power-down mode to conserve power during idle periods. A flexible reference structure allows the MAX12559 to use the internal 2.048V bandgap reference or accept an externally applied reference and allows the reference to be shared between the two ADCs. The reference structure allows the full-scale analog input range to be adjusted from ±0.35V to ±1.15V. The MAX12559 provides a common-mode reference to simplify design and reduce external component count in differential analog input circuits. The MAX12559 supports either a single-ended or differential input clock. User-selectable divide-by-two (DIV2) and divide-by-four (DIV4) modes allow for design flexibility and help to reduce the negative effects of clock jitter. Wide variations in the clock duty cycle are compensated with the ADC’s internal duty-cycle equalizer (DCE).
The MAX12559 is a dual‑channel, 14‑bit analog‑to‑digital converter optimized for low‑power, small‑size and high‑dynamic‑performance applications such as IF and baseband sampling. It operates from a single 3.3 V supply, consumes 980 mW in normal mode and offers a 0.5 mW power‑down mode, with selectable DIV2/DIV4 clock division and two output coding options (two’s complement or Gray code).\n\nThe device is supplied in a 68‑pin thin QFN package (10 mm × 10 mm × 0.8 mm) rated for –40 °C to +85 °C operation. It provides fully differential or single‑ended inputs up to 350 MHz, a flexible reference architecture, and an evaluation kit (MAX12559EVKIT) for rapid prototyping.
| Sampling Rate | 96 Msps |
|---|---|
| Resolution | 14 Bits |
| Supply Voltage | 3.3 V |
| Power Consumption (normal) | 980 mW |
| Power‑down Mode | 0.5 mW |
| Input Bandwidth (T/H) | 350 MHz |
| Package | 68‑pin thin QFN 10 mm × 10 mm × 0.8 mm |
| Operating Temperature Range | -40 °C to +85 °C |
The MAX12559 can sample at up to 96 Msps.
It consumes 980 mW when operating from a 3.3 V supply.