低電力時に抜群のダイナミック性能を実現する、デュアル10ビット40Msps多重出力ADC
SUNNYVALE, CA-January 15, 2002-Maxim Integrated Products expands the MAX118x family of dual, low-power 3V, 10-bit analog-to-digital converters (ADCs) with the introduction of the MAX1186.
The MAX1186 offers an SNR of 59.6dB and an SFDR of 73dB at an input frequency of 20MHz and a sampling frequency of 40Msps, while only consuming a nominal 120mW. The MAX1186 reduces the output bus interface by having multiplexed, parallel outputs.
Like the rest of the MAX118x family, the MAX1186 has the best available performance and power. This family is targeted at applications where wide bandwidth, good linearity, and high dynamic performance at low power are required. These applications include high-speed I/Q digitization, multichannel IF undersampling, imaging, and instrumentation.
All parts in this family can be operated from a 2.7V to 3.6V analog supply. For maximum interface flexibility, a separate digital supply pin allows output operation from 1.7V to 3.6V. The parts feature a pin-selectable three-state output data format, which can be set to either straight offset binary or two’s complement. Additionally, there are two power-down modes on all the parts. These reduce the power consumption to 2.8mA in sleep mode and 1µA in shutdown mode.
The MAX118x family features a ±1V differential input range and an innovative differential pipelined architecture. Both single-ended and differential input configurations are supported. An integrated, fully differential input T/H amplifier minimizes the requirement for external components while providing high dynamic performance and a full-power bandwidth of greater than 400MHz. The parts provide an on-chip precision 2.048V bandgap reference that may be overdriven with an external reference voltage. This allows for a flexible input range and automatically ensures the correct DC bias level for AC-coupled applications.
The MAX1186 is pin compatible with the rest of the family; this includes the MAX1180 (105Msps), MAX1181 (80Msps), MAX1182 (60Msps), MAX1183 (40Msps), MAX1184 (20Msps), and MAX1185 (20Msps, muxed outputs).
The MAX118x family comes in a space-saving 48-pin TQFP package specified for the industrial temperature range (-40°C to +85°C). Pricing for the family starts at $4.95 (1000-up, FOB USA). Pricing for the MAX1186 starts at $9.60 (1000-up, FOB USA). An evaluation kit is available to speed designs.
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