Quick Detail:
Low Cost, Complete 12-Bit Resolver-to-Digital Converter
Description:
The AD2S90 is a complete 12-bit resolution tracking resolver-to-digital converter. No external components are required tooperate the device.The converter accepts 2 V rms ± 10% input signals in the range3 kHz–20 kHz on the SIN, COS and REF inputs. A Type IIservo loop is employed to track the inputs and convert the inputSIN and COS information into a digital representation of theinput angle. The bandwidth of the converter is set internally at1 kHz within the tolerances of the device. The guaranteed maxi-mum tracking rate is 500 rps.Angular position output information is available in two forms,absolute serial binary and incremental A quad B.The absolute serial binary output is 12-bit (1 in 4096). The dataoutput pin is high impedance when Chip Select CS is logic HI.This allows the connection of multiple converters onto a com-mon bus. Absolute angular information in serial pure binaryform is accessed by CS followed by the application of an exter-nal clock (SCLK) with a maximum rate of 2 MHz.The encoder emulation outputs A, B and NM continuouslyproduce signals equivalent to a 1024 line encoder. When de-coded this corresponds to 12 bits of resolution. Three commonnorth marker pulsewidths are selected via a single pin (NMC).An analog velocity output signal provides a representation ofvelocity from a rotating resolver shaft traveling in either a clock-wise or counterclockwise direction.The AD2S90 operates on ±5 V dc ± 5% power supplies and isfabricated on Analog Devices’ Linear Compatible CMOS pro-cess (LC2MOS). LC2MOS is a mixed technology process thatcombines precision bipolar circuits with low power CMOS logiccircuits.
Applications:
Complete Monolithic Resolver-to-Digital Converter
Incremental Encoder Emulation (1024-Line)
Absolute Serial Data (12-Bit)
Differential Inputs
12-Bit Resolution
Industrial Temperature Range
20-Lead PLCC
Low Power (50 mW)
Specifications:
Datasheets | AD2S90 |
Product Photos | 20-PLCC Pkg |
Standard Package | 1 |
Category | Integrated Circuits (ICs) |
Family | Data Acquisition - ADCs/DACs - Special Purpose |
Series | - |
Packaging | Tube |
Type | R/D Converter |
Resolution (Bits) | 12 b |
Sampling Rate (Per Second) | - |
Data Interface | Serial |
Voltage Supply Source | Dual ± |
Voltage - Supply | ±4.75 V ~ 5.25 V |
Operating Temperature | -40°C ~ 85°C |
Mounting Type | Surface Mount |
Package / Case | 20-LCC (J-Lead) |
Supplier Device Package | 20-PLCC (9x9) |
Dynamic Catalog | Resolver to Digital Converter |
Competitive Advantage:
Warranty :180days for all goods
Free shipping:Order over $600 win a free shipment fee:goods weight below 3Kg.
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AD2S90AP AD2S90APZ AD2S90APZ-REEL Low Cost, Complete 12-Bit Resolver-to-Digital Converter