'Industry's smallest' two channel a/d converter from Maxim
1 min read
Expanding its portfolio of I<sup>2</sup>C a/d converters, Maxim has announced the availability of the MAX11645, a two channel, 12 bit module with internal reference. The device comes in a 1.9 x 2.2mm wafer level package and has a height of 0.64mm, making it suitable for designs laying components out on both sides of the pcb.
The device is also said to offer 'best in class' power dissipation (18mW at 1ms conversion times), making it ideal for applications such as energy harvesting sensors, portable consumer electronics and point of load monitoring in networking and computer systems. The module has been optimised to minimise both external component count and total solution size, requiring only a 0.1mF ceramic bypass capacitor on the supply voltage input. It operates from a single 2.7 to 3.6V supply, includes a 2.048V internal reference and is said to offer up to 70dB SINAD, ±1 LSB (max) INL and DNL error, plus 0.3ppm/oC gain error temperature drift.
The MAX11645 is capable of sample rates up to 94ksample/s, which Maxim claims is 28x faster than the nearest competitor in a comparable solution size. The high sample rates are said to allow multiple channels to be converted in a short period of time and allow the device to spend more time in shutdown mode, further reducing total system power consumption.
