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Engineering a More Sustainable Future | ADI
Precision Current & Voltage Feedback
Current feedback is vital to enhance drive performance and determines the overall control bandwidth and response time of
motors. Ensuring the motor is operating at peak efficiency, low latency, synchronized measurements offered by ADI's AD8410A
and MAX49925 current sense amplifiers enable faster system response for low voltage motor drives (<100 V). For higher voltage
systems, the ADuM7701 / ADuM7702 / ADuM7703 / ADuM7704 isolated sigma delta ADC products offer very low offset drift for
reduced torque ripple, and enable the use of low-value shunt resistors for improved system efficiency, accuracy, and reliability.
In applications with isolated current sensing using hall sensors, the AD7380 (4 MSPS) and MAX11192 (2 MSPS) simultaneous
sampling SAR ADCs enhance noise and dynamic range performance.
Robust Secure Connectivity
Power Management
Analog Devices Ethernet PHYs, RS-485/RS-422 and LVDS/M-LVDS transceivers are designed with added noise immunity and
robustness for reliable operation in harsh industrial environments. The ADIN1200 industrial Ethernet PHY paired with the
fido5200, 2-port real-time Ethernet multiprotocol (REM) switch, enables up to 100 Mbps data transfer for secure connectivity. For
RS-485, the MAX22507E / MAX22508E transceivers are optimized for high speed communication up to 50 Mbps, offer full duplex
operation and include integrated surge protection.
With increased connectivity comes the need for added security at the device level. Protecting production assets from
malware attack, and untrusted commands through secure authenticator technology is critical. The DS28S60 and MAXQ1065
protect motor drives by enabling secure boot and trusted execution, ensuring a secure chain of trust across the network.
As motor drives become decentralized and are placed closer to the motor,
efficient power management in smaller enclosures becomes key. The MAX17690 /
MAX17691 / MAX17692 flyback converters enable isolated and high-density power
solutions while multi-output buck regulators like the ADP5054 regulate the output
voltages for powering digital loads (e.g. FPGA / processor). MAX14721 / MAX14722 /
MAX14723 power limiters enable voltage and current protection for enhanced
drive reliability.
Digital Isolation & Isolated Gate Drivers
ADI's innovative portfolio of data isolators delivers digital isolation technology for
protocols ranging from SPI, I
2
C, USB, and CAN to gigabit LVDS, protecting people
and assets from high voltage and disruptive electric interference, while
maintaining data integrity. The ADuM341E quad channel digital isolator offers
galvanic isolation up to 1173 Vpeak along with low propagation delay enabling low
latency and low jitter for precision timing. Meanwhile robust isolated gate drivers
protect power devices from faults and electromagnetic transients. The ADuM4221
isolated half-bridge gate driver provides ultra low propagation delay for improved
system efficiency, offers common mode transient immunity (CMTI) up to 150 kV/µs
to support fast switching speeds and is compatible with the latest SiC and GaN
technology. The ADuM4122 offers two different slew rate levels to optimise power
loss and EMI control.
ADIN1100
ADIN1200
ADIN1300
ADIN2111
fido5100/5200
REM Switch
Support for all industrial protocols
10 Mbps / 100 Mbps
MAX17690
No-Opto Isolated Flyback Controller
Programmable switching frequency
Integrated overvoltage protection
MAXQ1065
Secure Co-Processor
ChipDNA
TM
PUF encryption
Secure boot
ADIN1200
10/100 Mbps Ethernet PHY
MIII, RMII, RGMII MAC interfaces
32-lead, 5 mm x 5 mm LFCSP
SYSTEM CONTROLLER
HIGH VOLTAGE POWER
LOW VOLTAGE POWER
ISOLATION
AC/DC
AMP
GATE
DRIVE
Current
Sense
Voltage
Sense
CTRL
DC Bus
I
2
C PWM
ADC
3-Phase
Inverter
To Motor Phase
+
-
AD8410A
AD7380
Phase Shunt Resistor
+ High CM Op-Amp
+ ADC
To Motor Phase
AD7380
ADAF1080
AMR (or Hall) Current Sensing
+ ADC
To Motor Phase
FPGA ADuM7701
Phase Shunt Resistor
+ Isolated Sigma-Delta ADC
To Motor Phase
+
-
AD8515
Leg Shunt Resistor
+ Op-Amp + ADC
MAX11192
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