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The MAX1195 is a 3V, dual, 8-bit analog-to-digital converter(ADC) featuring fully differenTIal wideband trackand-hold (T/H) inputs, driving two ADCs. The MAX1195is opTImized for low-power, small size, and high-dynamicperformance for applicaTIons in imaging, instrumentaTIonand digital communications. This ADC operates from asingle 2.7V to 3.6V supply, consuming only 87mW whiledelivering a typical signal-to-noise and distortion (SINAD)of 48.5dB at an input frequency of 20MHz and a samplingrate of 40Msps. The T/H-driven input stages incorporate400MHz (-3dB) input amplifiers. The convertersmay also be operated with single-ended inputs. In additionto low operating power, the MAX1195 features a3mA sleep mode as well as a 0.1μA power-down modeto conserve power during idle periods.An internal 2.048V precision bandgap reference setsthe full-scale range of the ADC. A flexible referencestructure allows the use of this internal or an externallyapplied reference, if desired, for applications requiringincreased accuracy or a different input voltage range.The MAX1195 features parallel, CMOS-compatible threestateoutputs. The digital output format can be set to two’scomplement or straight offset binary through a single controlpin. The device provides for a separate output powersupply of 1.7V to 3.6V for flexible interfacing with variouslogic families. The MAX1195 is available in a 7mm x 7mm,48-pin TQFP package, and is specified for the extendedindustrial (-40°C to +85°C) temperature range.Pin-compatible higher speed versions of the MAX1195are also available. Refer to the MAX1197 data sheet for60Msps and the MAX1198 data sheet for 100Msps. Inaddition to these speed grades, this family will include amultiplexed output version (MAX1196, 40Msps), forwhich digital data is presented time interleaved and ona single, parallel 8-bit output port.For a 10-bit, pin-compatible upgrade, refer to theMAX1183 data sheet. With the N.C. pins of the MAX1195internally pulled down to ground, this ADC becomes adrop-in replacement for the MAX1183.
