MAX186BCWP+

Product Summary

The MAX186BCWP+ is an Analog Digital Converter. The MAX186BCWP+ is 12-bit data-acquisition systems that combine an 8-channel multiplexer, high-bandwidth track/hold, and serial interface together with high conversion speed and ultra-low power consumption. The MAX186BCWP+ operates with a single +5V supply or dual ±5V supplies. The analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation. The 4-wire serial interface directly connects to SPI™, QSPI™ and Microwire™ devices without external logic. A serial strobe output allows direct connection to TMS320 family digital signal processors. The MAX186BCWP+ uses either the internal clock or an external serial-interface clock to perform successive-approximation A/D conversions. The serial interface can operate beyond 4MHz when the internal clock is used. The MAX186BCWP+ has an internal 4.096V reference while the MAX188 requires an external reference. Both parts have a reference-buffer amplifier that simplifies gain trim . The applications of the MAX186BCWP+ include Portable Data Logging, Data-Acquisition, High-Accuracy Process Control, Automatic Testing, Robotics, Battery-Powered Instruments and Medical Instruments.

Parametrics

MAX186BCWP+ absolute maximum ratings: (1)VDD to AGND: -0.3V to +6V; (2)VSS to AGND: +0.3V to -6V; (3)VDD to VSS: -0.3V to +12V; (4)AGND to DGND: -0.3V to +0.3V; (5)CH0–CH7 to AGND, DGND: (VSS - 0.3V) to (VDD + 0.3V); (6)CH0–CH7 Total Input Current: ±20mA; (7)VREF to AGND: -0.3V to (VDD + 0.3V); (8)REFADJ to AGND: -0.3V to (VDD + 0.3V); (9)Digital Inputs to DGND: -0.3V to (VDD + 0.3V); (10)Digital Outputs to DGND: -0.3V to (VDD + 0.3V); (11)Digital Output Sink Current: 25mA; (12)Continuous Power Dissipation (TA = +70℃) Plastic DIP (derate 11.11mW/℃ above +70℃): 889mW; (13)SO (derate 10.00mW/℃ above +70℃): 800mW; (14)SSOP (derate 8.00mW/℃ above +70℃): 640mW; (15)CERDIP (derate 11.11mW/℃ above +70℃): 889mW; (16)Operating Temperature Ranges: 0℃ to +70℃; (17)Storage Temperature Range: -60℃ to +150℃; (18)Lead Temperature (soldering, 10sec): +300℃.

Features

MAX186BCWP+ features: (1)8-Channel Single-Ended or 4-Channel Differential Inputs; (2)Single +5V or ±5V Operation; (3)Low Power: 1.5mA (operating mode) 2μA (power-down mode); (4)Internal Track/Hold, 133kHz Sampling Rate; (5)Internal 4.096V Reference (MAX186); (6)SPI-, QSPI-, Microwire-, TMS320-Compatible 4-Wire Serial Interface; (7)Software-Configurable Unipolar or Bipolar Inputs; (8)20-Pin DIP, SO, SSOP Packages; (9)Evaluation Kit Available.

Diagrams