The SDC/RDC1740/1741/1742 are hybrid 14- or 12-bit continuous tracking synchro or resolver to digital converters contained in 32-pin welded metal packages. The conversion process is performed by a monolithic IC manufactured in Analog Devices proprietary BiMOS II process that combines the advantages of CMOS logic and bipolar high accuracy linear circuits on the same chip. Internal isolating microtransformers are used to provide true isolation of the signal and reference inputs.
| Resolution | 14-bit or 12-bit |
|---|---|
| Accuracy | +5.3 arc min (1740), +15.3 arc min (1741), +8.5 arc min (1742) |
| Package | 32-pin welded metal package |
| Signal Input Impedance | 200 kΩ Resistive (90V Signal) |
The tracking rate is 27 min for the 1740 model, 18 min for the 1741 model, and 4 min for the 1742 model.
Military temperature range versions operate from -55°C to +125°C.
The device weighs a maximum of 0.86 oz or 25 grams.