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MAX1228 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX1228 Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 24 page General Description The MAX1226/MAX1228/MAX1230 are serial 12-bit ana- log-to-digital converters (ADCs) with an internal reference and an internal temperature sensor. These devices fea- ture on-chip FIFO, scan mode, internal clock mode, inter- nal averaging, and AutoShutdown™. The maximum sampling rate is 300ksps using an external clock. The MAX1230 has 16 input channels, the MAX1228 has 12 input channels, and the MAX1226 has 8 input channels. All input channels are configurable for single-ended or differential inputs in unipolar or bipolar mode. All three devices operate from a +5V supply and contain a 10MHz SPI™/QSPI™/MICROWIRE™-compatible serial port. The MAX1230 is available in 28-pin 5mm x 5mm QFN with exposed pad and 24-pin QSOP packages. The MAX1226/MAX1228 are only available in QSOP pack- ages. All three devices are specified over the extended -40°C to +85°C temperature range. ________________________Applications System Supervision Data-Acquisition Systems Industrial Control Systems Patient Monitoring Data Logging Instrumentation Features o Internal Temperature Sensor (±1°C Accuracy) o 16-Entry First-In/First-Out (FIFO) o Analog Multiplexer with True Differential Track/Hold 16-, 12-, 8-Channel Single Ended 8-, 6-, 4-Channel True Differential (Unipolar or Bipolar) o Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing Codes Over Temperature o Scan Mode, Internal Averaging, and Internal Clock o Low-Power Single +5V Operation 1.9mA at 300ksps o Internal 4.096V Reference or External Differential Reference o 10MHz 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface o Space-Saving 28-Pin 5mm x 5mm QFN Package 12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference ________________________________________________________________ Maxim Integrated Products 1 Pin Configurations 19-2852; Rev 1; 7/03 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. EVALUATION KIT AVAILABLE Ordering Information *Future product—contact factory for availability. Ordering Information continued at end of data sheet. 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 AIN0 EOC DOUT DIN CS SCLK VDD GND REF+ MAX1226 QSOP AIN1 AIN2 AIN5 AIN3 AIN4 REF-/AIN6 CNVST/AIN7 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 EOC DOUT DIN CS AIN3 AIN2 AIN1 AIN0 SCLK VDD GND REF+ AIN7 AIN6 AIN5 AIN4 12 11 9 10 CNVST/AIN11 REF-/AIN10 AIN9 AIN8 MAX1228 QSOP TOP VIEW PART TEMP RANGE PIN-PACKAGE MAX1226ACEE-T* 0°C to +70°C 16 QSOP MAX1226AEEE-T* -40°C to +85°C 16 QSOP Pin Configurations continued at end of data sheet. AutoShutdown is a trademark of Maxim Integrated Products, Inc. SPI/QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. |
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