Overview
The ADG3308BCBZ-1-RL7, produced by Analog Devices Inc., is a bidirectional level translator integrated circuit. This device contains eight bidirectional channels, making it suitable for multivoltage digital system applications. It allows for seamless data transfer between devices operating at different voltage levels, such as between a low-voltage DSP controller and a higher-voltage device. The ADG3308/ADG3308-1 series does not require a direction pin, simplifying the design and operation of the system. The device is available in various package options, including 20-lead TSSOP, 20-lead LFCSP, and 20-ball WLCSP for the ADG3308-1 variant.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage Range | VCCA, VCCY | 1.15 | 5.5 | V | ||
| Propagation Delay (A→Y) | tP, A→Y | RS = RT = 50 Ω, CL = 50 pF | 8 | 11 | ns | |
| Rise Time (A→Y) | tR, A→Y | RS = RT = 50 Ω, CL = 50 pF | 2 | 5 | ns | |
| Fall Time (A→Y) | tF, A→Y | RS = RT = 50 Ω, CL = 50 pF | 2 | 5 | ns | |
| Maximum Data Rate (Y→A) | DMAX, Y→A | 50 | Mbps | |||
| Operating Temperature Range | -40 | 85 | °C | |||
| Quiescent Current | < 1 | µA |
Key Features
- Bidirectional Logic Level Translation: The ADG3308/ADG3308-1 translates logic levels between two different voltage domains without the need for a direction pin.
- Wide Supply Voltage Range: Operates from 1.15 V to 5.5 V, making it versatile for various system designs.
- Low Quiescent Current: Less than 1 µA, which is beneficial for power-sensitive applications.
- Compact Packages: Available in 20-lead TSSOP, 20-lead LFCSP, and 20-ball WLCSP for the ADG3308-1 variant.
- Enable Pin for Three-State Operation: The EN pin allows for high impedance state on both sides of the device when pulled low.
Applications
- Multivoltage Digital Systems: Ideal for systems where data transfer occurs between devices operating at different voltage levels.
- Storage Systems (SAN/NAS): Suitable for storage systems that require level translation between different voltage domains.
- Computing/Server Applications: Used in server and computing environments where multiple voltage levels are present.
- GPS and Portable POS Systems: Applicable in GPS and portable POS systems that require level translation.
- Low-Cost Serial Interfaces: Used in various serial interface applications where cost and performance are critical.
Q & A
- What is the primary function of the ADG3308/ADG3308-1?
The primary function is to perform bidirectional logic level translation between two different voltage domains.
- What is the supply voltage range for the ADG3308/ADG3308-1?
The device operates from 1.15 V to 5.5 V.
- Does the ADG3308/ADG3308-1 require a direction pin?
No, it does not require a direction pin for level translation.
- What are the available package options for the ADG3308/ADG3308-1?
The device is available in 20-lead TSSOP, 20-lead LFCSP, and 20-ball WLCSP for the ADG3308-1 variant.
- What is the purpose of the EN pin on the ADG3308/ADG3308-1?
The EN pin provides three-state operation, allowing the terminals to be in a high impedance state when pulled low.
- What is the maximum data rate supported by the ADG3308/ADG3308-1?
The maximum data rate is 50 Mbps.
- What is the operating temperature range for the ADG3308/ADG3308-1?
The device operates from -40°C to +85°C.
- What is the quiescent current of the ADG3308/ADG3308-1?
The quiescent current is less than 1 µA.
- In which applications is the ADG3308/ADG3308-1 commonly used?
It is commonly used in multivoltage digital systems, storage systems, computing/server applications, GPS, and portable POS systems.
- How does the ADG3308/ADG3308-1 handle level translation between different voltage domains?
The device translates logic levels based on the supply voltages VCCA and VCCY, ensuring that VCCA is always less than VCCY.
