MAX1281BCUP+

The MAX1281BCUP+ is a 300Ksps, low power, 8-channel, serial 12bit analogue to digital converter (ADC) with internal reference in 20 pin TSSOP package. This single supply ADC use a successive approximation conversion technique and input track/hold (T/H) circuitry to convert an analogue signal to a 12bit digital output. A flexible serial interface provides easy interface to microprocessors. It uses an external serial interface clock to perform successive approximation A/D conversions. It has an internal +2.5V reference and reference buffer amplifier with ±1.5% voltage adjustment range. It provides a hard-wired SHDN (complementary) pin and four software-selectable power modes (normal operation, reduced power, fast power-down and full power-down). It is used in data acquisition, process control and pen digitizers.

• Supply voltage range is 2.7V to 3.6V
• Operating temperature range from 0°C to 70°C
• 8-channel single-ended or 4-channel pseudo-differential inputs
• SPI/QSPI/MICROWIRE/TMS320 compatible 4-wire serial interface
• Software-configurable unipolar or bipolar inputs
• INL is ±1LSB, DNL is ±1LSB, SINAD is 70dB, THD is -81dB and channel to channel crosstalk is -78dB
• Full power bandwidth is 3MHz at -3dB point, conversion time of 3.3μs
• Maximum duty cycle is 60%
• Maximum supply current of 10μA at full power-down
• Maximum power supply rejection is ±2mV

Applications

Signal Processing, Portable Devices, Medical

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

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