Overview
The SN74LVC125ADRG4 is a quadruple bus buffer gate produced by Texas Instruments. This device is designed for operation over a wide voltage range of 1.65V to 3.6V, making it versatile for various applications. It features independent line drivers with 3-state outputs, allowing each output to be disabled when the associated output-enable (OE) input is high. This component is particularly useful in mixed 3.3V/5V system environments, as it can translate signals between these voltage levels. The SN74LVC125ADRG4 is packaged in a 14-pin SOIC (D) package and operates over a temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| VCC Supply Voltage Range | 1.65 | 3.6 | V |
| Input Voltage Range | 0 | 5.5 | V |
| Output Voltage Range | 0 | VCC + 0.5 | V |
| Operating Temperature Range | –40 | 125 | °C |
| High-Level Output Current (VCC = 3.3V) | –24 | –24 | mA |
| Low-Level Output Current (VCC = 3.3V) | 24 | 24 | mA |
| Propagation Delay Time (tpd) at VCC = 3.3V | 1 | 4.8 | ns |
| Package Type | SOIC (D) | ||
| Pins | 14 |
Key Features
- 3-State outputs with separate OE for all 4 buffers
- Operates from 1.65V to 3.6V
- Specified from –40°C to 85°C and –40°C to 125°C
- Inputs accept voltages up to 5.5V
- Maximum propagation delay time (tpd) of 4.8ns at 3.3V
- Typical output ground bounce (VOLP) < 0.8V at VCC = 3.3V, TA = 25°C
- Typical output VOH undershoot (VOHV) > 2V at VCC = 3.3V, TA = 25°C
- Latch-up performance exceeds 250mA per JESD 17
Applications
- Power monitoring units (PMU)
- Wireless battery monitoring
- Remote electrical tilt units (RET)
- Remote radio units (RRU)
- Tower mounted amplifiers (TMA)
- Vector signal analyzers and generators
- Video conferencing: IP-based HD
- WiMAX and wireless infrastructure equipment
- Wireless communications testers
- xDSL modems and DSLAM
Q & A
- What is the operating voltage range of the SN74LVC125ADRG4?
The SN74LVC125ADRG4 operates from 1.65V to 3.6V.
- What type of outputs does the SN74LVC125ADRG4 have?
The device features 3-state outputs with separate output-enable (OE) inputs for each buffer.
- What is the maximum propagation delay time (tpd) at 3.3V?
The maximum propagation delay time (tpd) at 3.3V is 4.8ns.
- Can the inputs accept voltages higher than the VCC?
Yes, the inputs can accept voltages up to 5.5V.
- What is the operating temperature range of the SN74LVC125ADRG4?
The device operates over a temperature range of –40°C to 125°C.
- What is the latch-up performance of the SN74LVC125ADRG4?
The latch-up performance exceeds 250mA per JESD 17.
- What package types are available for the SN74LVC125ADRG4?
The device is available in several package types, including SOIC (D), SSOP, SOP, TSSOP, and VQFN.
- Can the SN74LVC125ADRG4 be used in mixed 3.3V/5V system environments?
Yes, the device can be used as a translator in mixed 3.3V/5V system environments.
- What are some common applications of the SN74LVC125ADRG4?
Common applications include power monitoring units, wireless battery monitoring, remote electrical tilt units, and various wireless infrastructure equipment.
- How should the OE input be managed during power up or power down to ensure the high-impedance state?
The OE input should be tied to VCC through a pull-up resistor to ensure the high-impedance state during power up or power down.
