MAX155BEWI+

The MAX155BEWI+ is an 8-channel ADC with simultaneous track/hold and reference in 28 pin WSOIC package. It is a high speed, 8bit, multichannel ADC with simultaneous track/hold (T/H) to eliminate timing differences between input channel samples. The MAX155 has an 8 analogue input channels. Each channel has its own T/H and all T/Hs sample at same instant. The MAX155 also feature a 2.5V internal reference and power-down capability, providing a complete, sampling data acquisition system. When operating from a single +5V supply, the MAX155 perform either unipolar or bipolar, single ended or differential conversions. For applications requiring wider dynamic range or bipolar conversions around ground, the VSS supply pin may be connected to -5V. Conversions are initiated with a pulse to the write pin and data is accessed from the ADC’s RAM with a pulse to read pin. A bidirectional interface updates the channel configuration and provides output data and also be wired for output-only operation.

• Supply voltage range is 4.75V to 5.25V
• Operating temperature range from -40°C to 85°C
• ±1LSB integral nonlinearity and differential nonlinearity
• ADC converts a channel in 3.6μs and stores the result in an internal 8x8 RAM
• SINAD is 47dB and THD is -60dB

Applications

Signal Processing, Portable Devices

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