Date: 20/12/2010

The 4mm² size ADC converter chip with dual channels

If you are looking to freeze an ADC converter chip with in an area of 1.9mm x 2.2 mm, Here comes a tiny New ADC with two channels measuring 1.9mm x 2.2mm and is packaged in wafer level.
The MAX11645 is a 12-bit I²C ADC IC in a tiny 1.9mm x 2.2mm wafer-level package (WLP). A 4 x 3 bump array with 0.5mm pitch facilitates layout on four-layer PCBs, while a slim 0.64mm height makes it perfect for designs laying components out on both sides of the PCB. This ADC offers other advantages such as requiring only a 0.1µF ceramic bypass capacitor on the supply voltage input, best-in-class power dissipation (18µW at 1ms conversion times). The MAX11645 is suggested for size constrained applications such as energy-harvesting sensors, portable consumer electronic devices, point-of-load monitoring (voltage, current, and temperature) in networking and computer systems.

The MAX11645 can sample up to 94ksps-28x, Maxim says this is faster than the nearest competitor in a comparable solution size. By taking advantage of the ADC's high sample rate, multiple channels can be converted in a short period of time, and this capability allows the device to spend more time in shutdown mode, further reducing total system power consumption, adds Maxim.

The MAX11645 operates from a single 2.7V to 3.6V supply and includes a 2.048V internal reference. This 12-bit ADC offers up to 70dB SINAD, ±1 LSB (max) INL and DNL error, plus 0.3ppm/°C gain-error temperature drift. Input signals in the 0 to VREF (unipolar) or ±VREF/2 (bipolar) range can be resolved with true 12-bit accuracy.
For applications that require less than 12-bit resolution, the MAX11647 is a pin-compatible 10-bit version of the MAX11645. The MAX11645/MAX11647 are offered in 12-bump WLP and 8-pin µMAX packages.
Operating temperature range: -40°C to +85°C

Availability: Now along with evaluation kits
Price: Starts at $1.25 (1000-up, FOB USA).
Editorial Product Rating: ** (Average Plus)
Major Drawback: None