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MAX1273CPA Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX1273CPA Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 20 page General Description The MAX1272/MAX1273 multirange 12-bit data-acquisi- tion systems (DAS) operate with a single 5V supply. The software-programmable analog input accepts a variety of voltage ranges: ±10V, ±5V, 0 to 10V, 0 to 5V for the MAX1272; ±VREF, ±VREF / 2, 0 to VREF, 0 to VREF / 2 for the MAX1273. The software-selectable extended analog input range increases the effective dynamic range to 14 bits and provides the flexibility to interface 4–20mA pow- ered sensors directly to a single 5V system. In addition, the MAX1272 provides fault protection to ±12V. Other features include a 5MHz track/hold (T/H) bandwidth, 87ksps throughput rate, and internal (4.096V) or external (2.40V to 4.18V) reference. The MAX1272/MAX1273 serial interfaces connect directly to SPI™/QSPI™/MICROWIRE™-compatible devices without any external logic. Four software-programmable power-down modes (delayed standby, immediate standby, delayed full power- down, and immediate full power-down) provide low-cur- rent shutdown between conversions. In standby mode, the internal reference buffer remains active, thus eliminating startup delay. The MAX1272/MAX1273 are available in 8-pin PDIP and µMAX packages. Both devices are available in the commercial (0°C to +70°C) or extended (-40°C to +85°C) temperature range. Applications Industrial Control Systems Data-Acquisition Systems Robotics Automatic Testing Battery-Powered Instruments Medical Instruments Features o Four Software-Selectable Input Ranges MAX1272: 0 to 10V, 0 to 5V, ±10V, ±5V MAX1273: 0 to VREF, 0 to VREF / 2, ±VREF, ±VREF / 2 o 12-Bit Resolution, No Missing Codes o 5V Single-Supply Operation o SPI/QSPI/MICROWIRE-Compatible 3-Wire Interface o 87ksps Sampling Rate o ±12V Fault-Protected Analog Input (MAX1272) o Internal (4.096V) or External (2.4V to 4.18V) Reference o Low Power 1.5mA at 87ksps 0.4mA at 10ksps 0.2mA at 1ksps o Four Power-Down Modes o 8-Pin µMAX and PDIP Packages Fault-Protected, 12-Bit ADCs with Software-Selectable Input Range ________________________________________________________________ Maxim Integrated Products 1 REF AIN GND 1 2 8 7 DOUT CS DIN VDD SCLK PDIP/ µMAX TOP VIEW 3 4 6 5 MAX1272 MAX1273 Pin Configuration Ordering Information 19-2921; Rev 1; 12/03 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. PART TEMP RANGE PIN- PACKAGE INL (LSB) MAX1272CPA 0 °C to +70°C 8 Plastic DIP ± 1 MAX1272CUA 0 °C to +70°C 8 µMAX ± 1 MAX1272EPA -40 °C to +85°C 8 Plastic DIP ± 1 MAX1272EUA -40 °C to +85°C 8 µMAX ± 1 MAX1273CPA 0 °C to +70°C 8 Plastic DIP ± 1 MAX1273CUA 0 °C to +70°C 8 µMAX ± 1 MAX1273EPA -40 °C to +85°C 8 Plastic DIP ± 1 MAX1273EUA -40 °C to +85°C 8 µMAX ± 1 SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. Typical Application Circuit appears at end of data sheet. |
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