MAX127BCAI+

The MAX127BCAI+ is a multirange, +5V, 12bit data acquisition system (DAS) with 2-wire serial interface in 28 pin SSOP package. Device operates at single supply, yet accepts signals at its analogue inputs that may span above the power supply rail and below ground. It provides eight analogue input channels that are independently software programmable for a variety of ranges such as ±10V, ±5V, 0 to +10V and 0 to +5V. This range switching increases effective dynamic range to 14bits and provides the flexibility to interface 4mA-20mA, ±12V and ±15V powered sensors directly to a single +5V system. The converter is fault protected to ±16.5V and a fault condition on any channel will not affect the conversion result of selected channel. A hardware shutdown input (SHDN-complementary) and two software programmable power-down modes (standby & full power-down) are provided for low current shutdown between conversions. In standby mode, the reference buffer remains active, eliminating start-up delays.

• Supply voltage range is 4.75V to 5.25V
• Operating temperature range from 0°C to 70°C
• I2C compatible, 2-wire serial interface
• Sampling rate is 8Ksps
• ±16.5V overvoltage tolerant input multiplexer
• Internal 4.096V or external reference
• Total harmonic distortion of -80dB
• Integral nonlinearity (INL) is ±1LSB, differential nonlinearity (DNL) is ±1LSB

Applications

Signal Processing, Industrial, Portable Devices, Robotics, Medical

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party