Description

The MAX1127 quad, 12-bit analog-to-digital converter(ADC) features fully differential inputs, a pipelinedarchitecture, and digital error correction. This ADC isoptimized for low-power, high-dynamic performance formedical imaging, communications, and instrumentationapplications. The MAX1127 operates from a 1.7V to1.9V single supply and consumes only 563mW whiledelivering a 69.6dB signal-to-noise ratio (SNR) at a19.3MHz input frequency. In addition to low operatingpower, the MAX1127 features a 675µA power-downmode for idle periods.An internal 1.24V precision bandgap reference sets theADC's full-scale range. A flexible reference structureallows the use of an external reference for applicationsrequiring increased accuracy or a different input voltagerange.A single-ended clock controls the conversion process.An internal duty-cycle equalizer allows for wide variationsin input-clock duty cycle. An on-chip phaselockedloop (PLL) generates the high-speed seriallow-voltage differential signaling (LVDS) clock.The MAX1127 provides serial LVDS outputs for data,clock, and frame alignment signals. The output data ispresented in two's complement or binary format.Refer to the MAX1126 data sheet for a pin-compatible40Msps version of the MAX1127.The MAX1127 is available in a small, 10mm x 10mm x0.9mm, 68-pin QFN package with exposed paddle andis specified for the extended industrial (-40°C to +85°C)temperature range.ApplicationsInstrumentationMultichannel Communication SystemsPositron Emission Tomography (PET) ImagingUltrasound and Medical Imaging