ADXL250 2-axis 50g accelerometer (easy Arduino-friendly interface) - USA seller

Description

*** US Seller - Get your parts in days, not weeks ***
Analog Devices ADXL250JQC (quantity 1)
New parts, still in the anti-static packaging. We paid each for these, and it looks like the well has dried up - they've officially become 'unobtanium'
.
Low-g accelerometers are a dime a dozen, but what about when you need to measure higher acceleration? The dual-axis ADXL250 measures +/- 50g, and unlike other parts that rely on complicated I2C/SPI type interfaces, is ridiculously
easy to interface to a microcontroller such as an Arduino, Basic Stamp, etc.
And the fact that it's a 5 volt part makes it just that much easier to work with. No external parts are necessary, except for your standard decoupling caps.
There are lots of sample projects available online, including multiple designs for DIY rocket altimeters. Strap one to a dummy and do your own Mythbusters type crash testing. ;-)
Don't be intimidated by all of those pins. As you'll see in the datasheet, many of them aren't connected to anything. In practice you'll simply add power and ground, then connect the voltage-out pins to your microcontroller's ADC. Read the ouput voltages (38mV per g) and do some simple math to convert to acceleration. It's that easy.
We ordered more than we needed - our loss is your gain. We have very few left, and once they're gone, there won't be any more available in the future.
Thanks for looking, and happy bidding!
Coin not included, of course. ;-)
NOTE: All orders are packed at our ESD station using proper anti-static packaging materials. And yes, we are more than happy to combine orders, keeping your shipping costs as low as possible.
Description:
The ADXL250 is a third generation +/- 50 g surface micromachined accelerometer. This improved replacement for the ADXL50 offers lower noise, wider dynamic range, reduced power consumption and improved zero g bias drift.
The ADXL250 is a fully integrated dual axis accelerometer with signal conditioning on a single monolithic IC, the first of its kind available on the commercial market. The two sensitive axes of the ADXL250 are orthogonal (90 degrees) to each other.
The ADXL250 offers lower noise and improved signal-to-noise ratio over the ADXL50. Typical S/N is 80 dB, allowing resolution of signals as low as 10 mg, yet still providing a +/- 50 g full-scale range. Device scale factor can be increased from 38 mV/g to 76 mV/g by connecting a jumper between VOUT and the offset null pin. Zero g drift has been reduced to 0.4 g over the industrial temperature range, a 10x improvement over the ADXL50.
Power consumption is a modest 1.8 mA ratiometric to the power supply, eliminating the need for a voltage reference when driving ratiometric A/D converters such as those found in most microprocessors. A power supply bypass capacitor is the only external component needed for normal operation.
Features:
Complete Acceleration Measurement System on a Single Monolithic IC
80 dB Dynamic Range
Low Noise
Low Power: <2 mA per Axis
Supply Voltages as Low as 4 V
2-Pole Filter On-Chip
Ratiometric Operation
Complete Mechanical & Electrical Self-Test
Applications:
Shock and Vibration Measurement
Machine Health
Shipping Recorders
Military Fuze, Safe and Arm
Rocket altimeter
Automotive crash testing
Datasheet link:
http://hibp.ecse.rpi.edu/~connor/education/EIspecs/ADXL150_250_0.pdf