AD7291-EP

Enhanced Product FEATURES 12-bit SAR ADC 8 single-ended analog input channels Analog input range: 0 V to 2.5 V 12-bit temperature to digital converter Temperature sensor accuracy of ±1°C typical Channel sequencer operation Specified for VDD of 2.8 V to 3.6 V Logic voltage VDRIVE = 1.65 V to 3.6 V Internal 2.5 V reference I2C-compatible serial interface supports standard and fast speed modes Out of range indicator/alert function Autocycle mode Power-down current: 13 µA maximum 20-lead LFCSP package ENHANCED PRODUCT FEATURES Supports defense and aerospace applications (AQEC standard) Extended industrial temperature range: −55°C to +125°C Controlled manufacturing baseline 1 assembly/test site 1 fabrication site Product change notification Qualification data available upon request GENERAL DESCRIPTION The AD7291-EP is a 12-bit, low power, 8-channel, successive approximation analog-to-digital converter (ADC) with an internal temperature sensor. The device operates from a single 3.3 V power supply and features an I2C-compatible interface. The device contains a 9-channel multiplexer and a track-and-hold amplifier with an input bandwidth of 30 MHz. The device has an on-chip 2.5 V reference that can be disabled to allow the use of an external reference. The AD7291-EP provides a 2-wire serial interface compatible with I2C interfaces. The I2C interface supports standard and fast I2C interface modes. The AD7291-EP normally remains in a partial power-down state while not converting and pow...