SDI 2210, 2260 & 2266 ACCELEROMETERS Description：

Datasheet

SDI’s Models 2210, 2260, and 2266 Low Cost Single-Axis MEMS DC Accelerometers are rugged plug-and-play measurement devices for suitable for a wide array of demanding applications. All three models excel in zero-to-medium frequency industrial applications, particularly where reliable performance, extremely low noise, and long-term stability are absolute requirements.

The 2210 comes in a traditional 1-inch square package and the 2260 and 2266 are the small footprint devices designed for tight spaces. The 2210 and 2260 feature an integrated 3’ cable, while the 2266’s connector allows for customized cable lengths and easy repositioning. All three models feature a hermetically sealed, low noise SDI surface mount accelerometer, which is individually tested, programmed, calibrated by SDI.

Onboard voltage regulation and an internal voltage reference eliminate the need for precision power supplies. The robust, anodized aluminum case is potted then epoxy sealed and can be mounted easily via two screws, an adhesive, or by attaching a magnet.

ZERO TO MEDIUM FREQUENCY APPLICATIONS

OPERATION

SDI Models 2210, 2260, and 2266 MEMS DC Accelerometers provide optimal performance when they are connected to instrumentation in a differential configuration using both the AOP and AON output signals, but they also support single ended operation for complete flexibility.

These Accelerometers produce differential analog output voltage pairs (AON & AOP) which vary with acceleration. The signal outputs are fully differential about a common mode voltage of approximately 2.5 volts. At zero acceleration, the output differential voltage is nominally 0 volts DC; at ±full scale acceleration, the output is ±4 volts DC, respectively, as shown in the figure (below). The output scale factor is independent from the supply voltage of +8 to +32 volts.

When a differential connection is not possible, SDI recommends connecting the accelerometer to instrumentation in single ended mode by connecting AOP and GND to the instrumentation and leaving AON disconnected. Keep in mind that the signal to noise ratio is reduced by half for a single-ended vs. a differential connection.

PERFORMANCE - ALL VERSIONS

All Models: Unless otherwise specified, Vs=+8 to +32 VDC, TC=25°C, Differential Mode. Span = ±g range = 8000 mV.

Note (1): For 2g thru 50g only; 100g and greater versions are tested and specified from -65 to +65g.

NOTICE: Stresses greater than those listed may cause permanent damage to the device. These are maximum stress ratings only. Functional operation of the device at or above these conditions is not implied.

PACKAGE DIMENSIONS