Overview
The ADG3233BRM, produced by Analog Devices Inc., is a low-voltage, bidirectional logic level translation switch. This device operates from supply voltages ranging from 1.65 V to 3.6 V, enabling it to translate low voltages to higher voltages and vice versa. It features a unidirectional signal path, meaning data can only flow from the input (A) to the output (Y). The ADG3233BRM is designed for applications requiring bypassing functions, particularly in JTAG chains and daisy-chain configurations.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage Range | VCC1, VCC2 | 1.65 | 3.6 | V | ||
| Input High Voltage | VIH | VCC1 = 3.0 V to 3.6 V | 1.35 | V | ||
| Input Low Voltage | VIL | VCC1 = 3.0 V to 3.6 V | 0.8 | V | ||
| Propagation Delay (A1 → Y1, Normal Mode) | tPHL, tPLH | CL = 30 pF, VT = VCC/2 | 4.5 | 6.2 | ns | |
| Enable Time (EN → Y1) | tEN | CL = 30 pF, VT = VCC/2 | 5 | 7.2 | ns | |
| Disable Time (EN → Y1) | tDIS | CL = 30 pF, VT = VCC/2 | 3.2 | 4.7 | ns | |
| Package Types | 8-lead SOT-23, 8-lead MSOP |
Key Features
- Bidirectional level translation matches any voltage level from 1.65 V to 3.6 V.
- High performance and fully guaranteed across the supply range.
- Short circuit protection.
- Tiny 8-lead SOT-23 and 8-lead MSOP packages, requiring minimal board space (2.9 mm × 2.8 mm for SOT-23 and 3 mm × 4.9 mm for MSOP).
- Unidirectional signal path (data flows only from A to Y).
- Bypass or normal operation modes controlled by the EN signal.
Applications
- JTAG chain bypassing: Ideal for bypassing devices in a JTAG chain to reduce testing time overhead.
- Daisy-chain bypassing: Useful in daisy-chain configurations where easy bypassing of one or more devices is required.
- Digital switching: Suitable for applications requiring digital signal switching and level translation.
Q & A
- What is the supply voltage range of the ADG3233BRM?
The ADG3233BRM operates from supply voltages ranging from 1.65 V to 3.6 V.
- What types of packages are available for the ADG3233BRM?
The device is available in 8-lead SOT-23 and 8-lead MSOP packages.
- What is the purpose of the EN signal in the ADG3233BRM?
The EN signal controls the operation mode of the device, switching between bypass and normal modes.
- Does the ADG3233BRM provide short circuit protection?
Yes, the device includes short circuit protection.
- What is the propagation delay for the ADG3233BRM in normal mode?
The propagation delay (tPHL, tPLH) in normal mode is typically 4.5 ns to 6.2 ns with a load capacitance of 30 pF and VT = VCC/2.
- Can the ADG3233BRM be used in JTAG chain applications?
Yes, it is ideally suited for bypassing devices in a JTAG chain to reduce testing time overhead.
- What is the maximum DC output current of the ADG3233BRM?
The maximum DC output current is 25 mA.
- What is the operating temperature range for the ADG3233BRM?
The device operates over an industrial temperature range.
- Is the signal path of the ADG3233BRM bidirectional?
No, the signal path is unidirectional, meaning data can only flow from the input (A) to the output (Y).
- How does the ADG3233BRM handle input logic levels?
The device can accept logic levels (VOL/VOH) from devices operating within the 1.65 V to 3.6 V supply range.
