MAX180BCPL+

The MAX180BCPL+ is an 8-channel, 12bit data acquisition system (DAS) in 40 pin DIP package. It combines 8 channel input multiplexer, high bandwidth track and hold (T/H), low drift zener reference and flexible microprocessor (µP) interface with high conversion speed and low power consumption. The MAX180 can be configured by µP for unipolar (0V to +5V) or bipolar (-2.5V to +2.5V) conversions and single ended or differential inputs. The devices samples and digitizes at 100KHz throughout rate and has fast 8bit or 16bit µP interface. The multiplexer output of MAX180 is fed directly into analogue to digital converter (ADC) input. The system allows the user to choose between an internal or an external reference. The internal reference value and offset can be adjusted allowing the overall system gain and offset errors to be nulled. The MAX180 is used in automated test equipment (ATE), digital signal processing (DSP) and high speed servo loops.

• Supply voltage range from 4.75V to 5.25V
• Operating temperature range from 0°C to 70°C
• ±1/2LSB linearity, ±1LSB INL and ±1LSB DNL (monotonic over temperature)
• Power consumption of 110mW
• Internal 25ppm/°C voltage reference
• Unipolar offset error of ±1LSB and bipolar offset error of ±1LSB
• Unipolar gain error of ±2LSB and bipolar gain error of ±2LSB
• Supply current of 4.5mA at VDD = 5V and 7mA at VSS = -12V
• Multiplexer high impedance inputs simplifies analogue drive requirement
• Full power sampling bandwidth of 6MHz

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