MAXIM MAX1422 12-Bit 20Msps 3.3V Low-Power ADC with Internal Reference handbook
Update: 30 September, 2023
The MAX1422 is a 3.3V, 12-bit analog-to-digital converter (ADC) that features a fully differential input, pipelined, 12-stage ADC architecture with wideband track-and-hold (T/H) and digital error correction incorporating a fully-dif- ferential signal path. The MAX1422 is optimized for low- power, high dynamic performance applications in imaging and digital communications. The converter operates from a single 3.3V supply, consuming only 137mW while delivering a 67dB (typ) signal-to-noise ratio (SNR) at a 5MHz input frequency and a 20Msps sampling frequency. The fully-differential input stage has a small signal -3dB bandwidth of 400MHz and may be operated with single-ended inputs. An internal 2.048V precision bandgap reference sets the ADCs full-scale range. A flexible reference structure accommodates an internally or externally applied buffered or unbuffered reference for applications requiring increased accuracy or a different input volt- age range. In addition to low operating power, the MAX1422 features two power-down modes, a reference power-down, and a shutdown mode. In reference power-down, the internal bandgap reference is deactivated, resulting in a 2mA (typ) supply current reduction. For idle periods, a full shutdown mode is available to maximize power savings. The MAX1422 provides parallel, offset binary, CMOS- compatible three-state outputs. The MAX1422 is available in a 7mm ✕ 7mm ✕ 1.4mm, 48-pin TQFP package and is specified over the com- mercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature ranges.
Brand: MAXIM
File format: PDF
Size: 509 KB
MD5 Checksum: 55940E91B41EFFB6D50383441E6B4441
Publication date: 07 May, 2012
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PDF Link: MAXIM MAX1422 12-Bit 20Msps 3.3V Low-Power ADC with Internal Reference handbook PDF