Two-channel ADC for energy-harvesting sensors

A Maxim Integrated Products product story
More from this company More from this category
Edited by the Electronicstalk editorial team Dec 17, 2010

The MAX11645 two-channel ADC is suited for applications ranging from energy-harvesting sensors to portable consumer electronics and point-of-load monitoring in networking and computer systems.

This 12-bit I2C ADC includes an internal reference in a 1.9 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 0.64mm height makes it suitable for designs laying components out on both sides of the PCB.

This ADC minimises external component count and total solution size, only requiring a 0.1microfarad ceramic bypass capacitor on the supply voltage input.

It combines a compact footprint with power dissipation of 18mW at 1ms conversion times.

The MAX11645 is capable of sample rates up to 94ksps, meaning that multiple channels can be converted in a short period of time.

This capability allows the device to spend more time in shutdown mode, further reducing total system power consumption.

The MAX11645 operates from a single 2.7 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.

Offering pin- and software-compatible two-/four-/eight-/12-channel, 8-/10-/12-bit ADCs enables designers to easily trade off space, performance and cost on platform designs.

These ADCs also include internal references, FIFOs and selectable scan modes.

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 eight-pin Micromax packages, and are guaranteed over the -40 to 85C extended temperature range.

Evaluation kits are available for the four-, eight- and 12-channel versions (MAX11613/MAX11615/MAX11617) of these ADCs.

Find out more about this article. Request a brochure, download technical specifications and request samples here.
Send to a friendSend to a friend

Not what you're looking for? Search the site.

Back to top Back to top


Add to My Alerts

Company Maxim Integrated Products

Category Analogue and mixed-signal ICs

Contact Maxim Integrated Products

Contact Maxim Integrated Products

Tel+1 408 737 7600

Other Maxim Integrated Products stories

Contact Maxim Integrated Products
  • VGA for wireless infrastructure transceivers
    Maxim Integrated Products has introduced the MAX2062, a fully programmable, multistate, dual-channel, analogue and digital IF/RF variable-gain amplifier suitable for automatic gain control circuits.
  • Ambient-light sensor suited for tablet PCs
    The MAX9635 is ideally suited for tablet and notebook PCs, smartphones, TVs, digital lighting-management systems and light-intensity-monitoring applications.
  • Step-down converters suit automotive applications
    The MAX16903 and MAX16904 automotive-grade synchronous step-down converters are designed to withstand extreme battery-voltage conditions in automotive applications.
  • DC/DC regulators for portable devices and more
    Maxim Integrated Products has launched the MAX15050/MAX15051 low-voltage (2.9V to 5.5V) 4A synchronous DC/DC regulators for notebooks, single-cell portable devices and networking applications.
  • Wide-ranging, high-voltage, precision-op amps
    The MAX9632 and MAX9633 from Maxim Integrated Products are 36V, low-noise, precision operational amplifiers with low distortion.
Newsletter sign up

Request your free weekly copy of the Electronicstalk email newsletter ...

A Pro-talk Publication

A Pro-talk publication