MAX1272- 12 bit serial 1 channel 8 pins slower

MAX1272- 12 bit serial 1 channel 8 pins slower - 19-2921...

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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; ±V REF , ±V REF / 2, 0 to V REF , 0 to V REF / 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 an 8-pin PDIP package. Both devices are available in the commercial (0°C to +70°C) or extended (-40°C to +85°C) tempera- ture range. Applications Industrial Control Systems Data-Acquisition Systems Robotics Automatic Testing Battery-Powered Instruments Medical Instruments Features Four Software-Selectable Input Ranges MAX1272: 0 to 10V, 0 to 5V, ±10V, ±5V MAX1273: 0 to V REF , 0 to V REF / 2, ±V REF , ±V REF / 2 12-Bit Resolution, No Missing Codes 5V Single-Supply Operation SPI/QSPI/MICROWIRE-Compatible 3-Wire Interface 87ksps Sampling Rate ±12V Fault-Protected Analog Input (MAX1272) Internal (4.096V) or External (2.4V to 4.18V) Reference Low Power 1.5mA at 87ksps 0.4mA at 10ksps 0.2mA at 1ksps Four Power-Down Modes 8-Pin PDIP Package MAX1272/MAX1273 Fault-Protected, 12-Bit ADCs with Software-Selectable Input Range ________________________________________________________________ Maxim Integrated Products 1 REF AIN GND 1 2 8 7 DOUT CS DIN V DD SCLK PDIP TOP VIEW 3 4 6 5 MAX1272 MAX1273 Pin Configuration Ordering Information 19-2921; Rev 2; 5/04 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 PART TEMP RANGE PIN- PACKAGE INL (LSB) MAX1272 CPA 0 ° C to +70 ° C 8 Plastic DIP ± 1 MAX1272EPA -40 ° C to +85 ° C 8 Plastic DIP ± 1 MAX1273 CPA 0 ° C to +70 ° C 8 Plastic DIP ± 1 MAX1273EPA -40 ° C to +85 ° C 8 Plastic DIP ± 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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MAX1272/MAX1273 Fault-Protected, 12-Bit ADCs with Software-Selectable Input Range 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
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