MAX1181
Overview
- Single 3V Operation
- Excellent Dynamic Performance 59dB SNR at fIN = 20MHz 73dB SFDR at fIN = 20MHz
- Low Power 82mA (Normal Operation) 2.8mA (Sleep Mode) 1µA (Shutdown Mode)
- 0.02dB Gain and 0.25° Phase Matching (typ)
- Wide ±1VP-P Differential Analog Input Voltage Range
- 400MHz, -3dB Input Bandwidth
- On-Chip 2.048V Precision Bandgap Reference
- User-Selectable Output Format-Two’s Complement or Offset Binary
- 48-Pin TQFP Package with Exposed Pad for Improved Thermal Dissipation
- Evaluation Kit Available MAX1181 The MAX1181 is a 3V, dual 10-bit, analog-to-digital converter (ADC) featuring fully-differential wideband track-and-hold (T/H) inputs, driving two pipelined, ninestage ADCs. The MAX1181 is optimized for low-power, high-dynamic performance applications in imaging, instrumentation, and digital communication applications. The MAX1181 operates from a single 2.7V to 3.6V supply, consuming only 246mW, while delivering a typical signal-to-noise ratio (SNR) of 59dB at an input frequency of 20MHz and a sampling rate of 80Msps. The T/H driven input stages incorporate 400MHz (-3dB) input amplifiers. The converters may also be operated with single-ended inputs. In addition to low operating power, the MAX1181 features a 2.8mA sleep mode, as well as a 1µA power-down mode to conserve power during idle periods. An internal 2.048V precision bandgap reference sets the full-scale range of the ADC. A flexible reference structure allows the use of the internal or external reference, if desired for applications requiring increased accuracy or a different input voltage range. The MAX1181 features parallel, CMOS-compatible three-state outputs. The digital output format is set to two’s complement or straight offset binary through a single control pin. The device
