Overview
The ADUM3166BRSZ is a digital isolator produced by Analog Devices Inc., designed to provide high-speed USB 2.0 isolation. This component is part of the ADuM3165 and ADuM3166 family, which employs Analog Devices' iCoupler technology to combine isolator channels, USB transceivers, power, and timing circuits. The ADUM3166BRSZ is particularly useful in applications requiring bidirectional USB isolation for upstream and downstream ports, ensuring reliable and isolated data transfer.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Operating Temperature | - | -55 | - | 125 | °C | - |
| USB Data Rates | - | - | - | - | - | 1.5 Mbps (Low Speed), 12 Mbps (Full Speed), 480 Mbps (High Speed) |
| Supply Voltage (VDD1/VDD2) | VDD1/VDD2 | 3 | - | 3.6 | V | External 3.3 V supply or internal LDO regulator |
| Supply Voltage (VBUS1/VBUS2) | VBUS1/VBUS2 | 4.5 | - | 5.5 | V | Optional 5 V power supply |
| High Speed Input Differential Threshold | VTH | 0.09 | - | - | V | |(DD+) – (DD−)| or |(UD+) – (UD−)| |
| Low and Full Speed Differential Input Sensitivity | VDI | 0.2 | - | - | V | - |
| Input Logic High Threshold | VIH | 2.0 | - | - | V | - |
| Input Logic Low Threshold | VIL | 0.8 | - | - | V | - |
| Input Hysteresis | VHYS | 0.4 | - | - | V | - |
Key Features
- USB 2.0 Signaling: Supports low, full, and high speed connections with automatic detection of data rates (1.5 Mbps, 12 Mbps, and 480 Mbps).
- Bidirectional Isolation: Provides isolation for both upstream and downstream USB ports, ensuring reliable data transfer and protection against voltage differences.
- Redriving and Data Retiming: Includes features for input jitter removal and an open eye to maintain signal integrity.
- Flexible Power Options: Can operate with 4.5 V to 5.5 V or 3 V to 3.6 V power supplies on each side, with internal LDO regulators generating 3.3 V internally.
- PGOOD Indicator: Features a power good indicator on the downstream side to monitor power status.
- Compact Package: Available in a 20-lead SSOP package with 5.3 mm creepage).
Applications
- Industrial Automation: Used in industrial control systems where isolation is crucial for safety and reliability).
- Medical Devices: Suitable for medical equipment requiring isolated USB interfaces to ensure patient safety).
- Automotive Systems: Applied in automotive electronics where isolation is necessary for protecting against voltage spikes and ensuring system reliability).
- Consumer Electronics: Used in various consumer devices that require isolated USB interfaces, such as printers, scanners, and other peripherals).
Q & A
- What is the primary function of the ADUM3166BRSZ?
The ADUM3166BRSZ is a bidirectional USB isolator designed to provide isolation for USB 2.0 high, full, and low speed connections).
- What are the supported USB data rates for the ADUM3166BRSZ?
The ADUM3166BRSZ supports data rates of 1.5 Mbps (low speed), 12 Mbps (full speed), and 480 Mbps (high speed)).
- What power supply options are available for the ADUM3166BRSZ?
The component can operate with 4.5 V to 5.5 V or 3 V to 3.6 V power supplies on each side, with internal LDO regulators generating 3.3 V internally).
- Does the ADUM3166BRSZ have a power good indicator?
Yes, the ADUM3166BRSZ features a power good indicator (PGOOD) on the downstream side).
- What is the operating temperature range of the ADUM3166BRSZ?
The operating temperature range is from -55°C to +125°C).
- What package type is the ADUM3166BRSZ available in?
The ADUM3166BRSZ is available in a 20-lead SSOP package).
- What is the purpose of the internal LDO regulator in the ADUM3166BRSZ?
The internal LDO regulator generates 3.3 V internally when 5 V is applied to VBUS1 or VBUS2, or it can be bypassed if an external 3.3 V supply is used).
- Can the ADUM3166BRSZ be used in medical devices?
Yes, the ADUM3166BRSZ is suitable for use in medical devices where isolated USB interfaces are required for patient safety).
- What is the significance of the iCoupler technology used in the ADUM3166BRSZ?
The iCoupler technology combines isolator channels, USB transceivers, power, and timing circuits to provide reliable and isolated data transfer).
- How does the ADUM3166BRSZ handle input jitter?
The ADUM3166BRSZ includes features for redriving and high-speed data retiming to remove input jitter and maintain an open eye).
