Product Description
| Product Introduction ADUM1201 is a dual channel digital isolator based on iCoupler technology, which uses chip sized transformers for electromagnetic isolation, replacing the traditional LED and photodiode structures in optocouplers. Due to the elimination of the photoelectric conversion process, iCoupler technology achieves higher efficiency, lower power consumption, higher integration, and better anti-interference performance. ADUM1201 provides two isolated channels in opposite directions (one input and one output), suitable for bidirectional communication isolation scenarios such as RS-232. Separate power supply at both ends (2.7V~5.5V) and have independent ground wires (GND1, GND2), and cannot share ground, otherwise the isolation effect cannot be achieved. Attention: ADUM1201 requires both ends of the power supply to be powered on simultaneously, otherwise the chip cannot function properly. |
| Product Details High speed transmission: data transmission rate up to 125Mbps; High inter channel delay matching and excellent timing accuracy ·Ultra low power consumption: power consumption is 1/10~1/50 of traditional optocouplers; The maximum working current is only 0.8 mA ·High reliability: based on electromagnetic isolation, no photoelectric conversion; Maintain stable performance even in a high temperature environment of 125 ℃ ·High anti-interference ability: Strong transient common mode suppression capability; Low crosstalk between channels ·High integration: The PCB occupies only about 40% of the optocoupler's area; Can achieve bidirectional isolation communication in both forward and reverse directions within a single chip Flexible power supply: supports 2.7V~5.5V power supply range; Bilateral independent power supply, suitable for isolation of different voltage systems |
| Application: Size critical multi-channel isolation SPI interface/data converter isolation RS-232/RS-422/RS-485 transceiver isolation Digital fieldbus isolation Hybrid electric vehicles, battery monitoring, and motor drive |
| 2、 Product parameters Working voltage: 2.7-5.5V Isolation voltage: 2500Vrms/1 minute Isolation channels: 2 Working temperature: -40 ℃~+125 ℃ |
| 3、 Pin Description VDD1/V1: Isolator 1 Input Power Positive GND1/G1: Isolator 1 Input Power Negative VOA/AO: Logical output A VIB/BI: Logical Input B VDD2/V2: Isolator 2 Input Power Positive GND2/G2: Isolator 2 Input Power Negative VIA/A1: Logic Input A VOB/BO: Logical Output B 4、 Precautions Both sides must be powered separately (unless the board carries isolated DC-DC) GND1 and GND2 cannot be co located Do not hang the input empty, unused channels should be connected to a fixed voltage level |
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