MAX108 Datasheet | Maxim Integrated

Description Features o 1.5Gsps Conversion Rate o 2.2GHz Full-Power Analog Input Bandwidth o 7.5 Effective Bits at f IN = 750MHz (Nyquist Frequency) o ±0.25LSB INL and DNL o 50Ω Differential Analog Inputs o ±250m V Input Signal Range o On-Chip, +2.5V Precision Bandgap Voltage Reference o Latched, Differential PECL Digital Outputs o Selectable 8:16 Demultiplexer o Internal Demux Reset Input with Reset Output o 192-Contact ESBGA Package o Pin patible with MAX104 (1Gsps) and MAX106 (600Msps) The MAX108 PECL-patible, 1.5Gsps, 8-bit analogto-digital converter (ADC) allows accurate digitizing of analog signals with bandwidths to 2.2GHz. Fabricated on Maxim’s proprietary advanced GST-2 bipolar process, the MAX108 integrates a high-performance track/hold (T/H) amplifier and a quantizer on a single monolithic die. The innovative design of the internal T/H, which has an exceptionally wide 2.2GHz full-power input bandwidth, results in high performance (typically 7.5 effective bits) at the Nyquist frequency. A fully differential parator design and decoding circuitry reduce out-of-sequence code errors (thermometer bubbles or sparkle codes) and provide excellent metastable performance. Unlike other ADCs that can have errors resulting in false fullor zero-scale outputs, the MAX108 limits the error magnitude to 1LSB. The analog input is designed for either differential or single-ended use with a ±250m V input voltage range. Dual, differential, positive-referenced emitter-coupled logic (PECL)-patible output data paths ensure easy interfacing and include an 8:16 demultiplexer feature that reduces output data rates to one-half the sampling clock rate. The PECL outputs can be operated from any supply between +3V to +5V for patibility with +3.3V or +5V referenced systems. Control inputs are provided for interleaving additional MAX108 devices to increase the effective system sampling rate. The MAX108 is packaged in a 25mm x 25mm, 192-contact Enhanced Super Ball-Grid Array (ESBGA™)...