温度センサ内蔵、16チャネル、12/10ビットADC、マイクロプロセッサのI/O要求を軽減
SUNNYVALE, CA-July 31, 2003-Maxim Integrated Products
(NASDAQ: MXIM) introduces the MAX1226—MAX1231 and MAX1026—MAX1031 families of 12- and 10-bit analog-to-digital converters (ADCs) with 8, 12, or 16 single-ended analog inputs or 4, 6, or 8 true-differential analog inputs. These devices minimize microprocessor I/O requirements by including an on-chip FIFO, scan mode, internal clock mode, and internal averaging. An on-board ±1°C accurate temperature sensor provides local temperature, eliminating the need for an external temp sensor. This reduces cost and saves board space. All features are accessed using a single SPI™/QSPI™/MICROWIRE™ port.
The MAX1226/MAX1228/MAX1230 and MAX1026/MAX1028/
MAX1030 operate from a single +5V supply, while the MAX1227/MAX1229/MAX1231 and MAX1027/MAX1029/MAX1031 operate from a single +3.3V supply. Low-power operation consumes only 1.8mA at the maximum conversion rate of 300ksps. Automatic shutdown between conversions reduces operating current to 330µA at 10ksps and no more than 5µA when the device is placed in complete shutdown. Along with high channel count and low power consumption, their excellent AC performance (THD < -82dB) and DC accuracy (±1 LSB INL) make these devices ideal for industrial process control, instrumentation, and medical applications.
The 8-channel MAX1226/MAX1227/MAX1026/MAX1027 are available in a 16-pin QSOP package, the 12-channel MAX1228/MAX1229/MAX1028/MAX1029 are available in a 20-pin QSOP package, while the 16-channel MAX1230/MAX1231/MAX1030/MAX1031 are available in 24-pin QSOP and 28-pin QFN packages. All devices are available in both commercial (0°C to +70°C) and extended (-40°C to +85°C) temperature ranges. Prices start at $3.46 (1000-up, FOB USA).
MICROWIRE is a trademark of National Semiconductor Corp.
SPI/QSPI are trademarks of Motorola, Inc
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