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Analog Devices LTM2895 | Demoboard DC2589A
LTM2895 100MHz Isolated DAC SPI Serial Interface and LTC2642-16
Overview
| Topology | Other Topology |
| IC revision | 1 |
Description
Demonstration circuit DC2589A shows an LTM®2895isolating and interfacing an LTC®2642-16. The LTM2895is a high speed SPI isolator for interfacing DACs witha full complement of control signals. The LTC2642-16is a bipolar 16-bit unbuffered voltage output DAC. Lownoise isolated power is delivered to the isolated side witha LT®3999 push pull driver and isolation transformer.The DC2589A demonstrates the DC and AC operation ofthe LTC2642-16 without performance degradation whenisolated with the LTM2895. The serial peripheral interface(SPI) runs at a maximum 100MHz SCK frequency. TheLTM2895 is configurable with many DACs with SPI clockfrequencies up to 100MHz.The DC2589A connects to either the DC590 or DC2026for control with QuikEval™.
Features
REMARK: user guide and BOM is added
More information
Products
Order Code | Datasheet | Downloads | Status | Product series | VIN | VOut1(V (DC)) | IOut1(A) | Type of Insulation | fswitch(kHz) | ∫Udt(Vµs) | NPRI : NSEC | L(µH) | VT(V (RMS)) | L(mm) | W(mm) | H(mm) | Mount | Pins | Type | IR(A) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PPTI Push-Pull Transformers, 3.3 V (DC), 5 V (DC) | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PPTI Push-Pull Transformers | Input Voltage 3.3 V (DC) | Output Voltage 15 V (DC) | Output Current 10.5 A | Type of InsulationReinforced | Switching Frequency 250 - 550 | Voltage-µSecond10 Vµs | Turns Ratio1:2 | Inductance340 µH | Insulation Test Voltage5000 V (RMS) | Length9.14 mm | Width12.7 mm | Height7.62 mm | MountSMT | – | – | – | – | Operating Temperature -40 °C up to +125 °C | |||
 | WR-PHD Pin Header, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header | – | – | – | – | – | – | – | – | – | Length6 mm | – | – | MountTHT | Pins3 | TypeStraight | Rated Current2 A | Working Voltage200 V (AC) | Operating Temperature -40 °C up to +105 °C |