ADI’s ADuM540x series is a one-way 5-way iCoupler” title=”iCoupler”>iCoupler digital isolator” title=”digital isolator”>digital isolator, with an isolation voltage of up to 1kV, and has excellent performance compared with optocouplers , The working voltage on each side is 4.5 V to 5.5 V, the data rate is up to 10Mbps (NRZ), and the working temperature is up to 105 degrees C. It is mainly used for general unidirectional multi-channel data isolation. This article introduces the main features of ADuM75101, functional block diagram and evaluation boards that support ADuM130x, ADuM131x, ADuM140x, ADuM141x, ADuM1510, ADuM240x, ADuM330x, ADuM340x, ADuM344x, ADuM440x, ADuM5000, ADuM520x, ADuM5000, ADuM520x, ADuMu EVAL-ADuMQSEBZ main features, circuit diagrams and bill of materials.
The ADuM75101 is a unidirectional 5-channel isolator based on the Analog Devices, Inc., iCoupler® technology. In contrast to the ADuM1510, the ADuM7510 has a lower isolation rating offering a reduced cost option for applications that can accept a 1 kV ac isolation. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices.
By avoiding the use of LEDs and photodiodes, iCoupler devices eliminate the design difficulties commonly associated with optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Furthermore, iCoupler devices run at one-tenth to one-sixth the power consumption of optocouplers at comparable signal data rates.
The ADuM7510 isolator provides five independent isolation channels supporting data rates up to 10 Mbps. Each side operates with the supply voltage of 4.5 V to 5.5 V. Unlike other optocoupler alternatives, the ADuM7510 isolator has a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
Main features of ADuM75101:
RoHS-compliant, 16-lead, QSOP package
Low power operation: 5 V
1.2 mA per channel maximum @ 0 Mbps to 2 Mbps
2.8 mA per channel maximum @ 10 Mbps
High temperature operation: 105°C
Up to 10 Mbps data rate (NRZ)
Low default output state
1000 V rms isolation rating
Safety and regulatory approvals (pending)
1000 V rms for 1 minute per UL 1577
General-purpose, unidirectional, multichannel isolation
Figure 1. ADuM75101 functional block diagram
iCoupler evaluation board EVAL-ADuMQSEBZ
The EVAL-ADuMQSEBZ can be used with most Coupler® isolation products in the 16-lead, wide-body SOIC and QSOP packages. The evaluation board supports the common pad positions for power, ground, and I/O pins found in nearly all of the Coupler products and is a configurable board that can be adapted to many Coupler products.
ICoupler modules supported by the evaluation board EVAL-ADuMQSEBZ:
ADuM130x, ADuM131x, ADuM140x, ADuM141x, ADuM1510, ADuM240x, ADuM330x
ADuM340x, ADuM344x, ADuM440x, ADuM5000, ADuM520x, ADuM540x, ADuM6000
ADuM620x, ADuM640x, ADuM744x, ADuM7510
Main features of the evaluation board EVAL-ADuMQSEBZ:
Convenient connections for power through screw terminal blocks
Add-on BNC connector for 50 Ω signal sources
On-board signal routing
Support for signal wrap back
Simple signal paths to reduce transmission line effects
Pull-up and pull-down provided for control lines
Support for isoPower
Project area that supports surface-mount and through-hole devices
Figure 2. Outline drawing of the evaluation board EVAL-ADuMQSEBZ
Figure 3. Evaluation board EVAL-ADuMQSEBZ circuit diagram
Evaluation board EVAL-ADuMQSEBZ Bill of Materials (BOM):
For details, see: