Overview
The MC26LS30DR2G, produced by onsemi, is a low power Schottky set of line drivers that offers dual functionality. It can be configured as either two differential drivers complying with EIA-422-A standards or as four single-ended drivers complying with EIA-423-A standards. This versatility makes it suitable for a wide range of applications requiring reliable and high-speed data transmission. The device operates with low power consumption and is available in a 16-pin surface mount package, making it ideal for various industrial and communication systems.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Supply Voltage (Differential Mode) | VCC, VEE | +4.75, -0.5 | +5.0, 0 | +5.25, +0.3 | Vdc |
| Power Supply Voltage (Single-Ended Mode) | VCC, VEE | +4.75, -5.25 | +5.0, -5.0 | +5.25, -4.75 | Vdc |
| Input Voltage (All Inputs) | Vin | 0 | +15 | Vdc | |
| Operating Ambient Temperature | TA | -40 | +85 | °C | |
| Differential Output Rise Time | tr | 70 | 200 | ns | |
| Differential Output Fall Time | tf | 70 | 200 | ns | |
| Propagation Delay Time (Input to Differential Output) | tPDH, tPDL | 90 | 200 | ns | |
| Output Current (each output) | IO | -65 | +65 | mA |
Key Features
- Configurable as two differential drivers (EIA-422-A) or four single-ended drivers (EIA-423-A)
- High impedance outputs in differential mode
- Short circuit current limit in both source and sink modes
- ±10 V common mode range on high impedance outputs
- ±15 V range on inputs
- Low current PNP inputs compatible with TTL, CMOS, and MOS outputs
- Individual output slew rate control in single-ended mode
- Replacement for AMD AM26LS30 and National Semiconductor DS3691
- Pb-free packages available
Applications
The MC26LS30DR2G is suitable for various applications requiring reliable and high-speed data transmission. In differential mode, it can transmit data rates up to 10 Mbaud over twisted pairs, making it ideal for industrial communication systems, data networks, and other high-speed data transmission applications. In single-ended mode, it can transmit data rates up to 100 Kbaud, which is useful in environments where extraneous noise is not a significant issue.
The device's ability to control crosstalk through slew rate control pins makes it beneficial in applications where signal integrity is crucial. Additionally, its compatibility with TTL, CMOS, and MOS outputs expands its usability across different system architectures.
Q & A
- What are the primary configurations of the MC26LS30DR2G?
The MC26LS30DR2G can be configured as either two differential drivers complying with EIA-422-A standards or as four single-ended drivers complying with EIA-423-A standards.
- What is the operating temperature range of the MC26LS30DR2G?
The operating ambient temperature range is -40°C to +85°C.
- What is the maximum data rate in differential mode?
In differential mode, the MC26LS30DR2G can transmit data rates up to 10 Mbaud.
- How is the mode of operation selected?
The mode of operation is selected using the Mode pin (Pin 4) and appropriate power supplies.
- What is the significance of slew rate control in single-ended mode?
The slew rate control in single-ended mode helps in reducing crosstalk and complying with EIA-423-A and FCC requirements.
- What are the power supply voltage ranges for differential and single-ended modes?
For differential mode, the power supply voltage range is +4.75 V to +5.25 V (VCC) and -0.5 V to +0.3 V (VEE). For single-ended mode, the range is +4.75 V to +5.25 V (VCC) and -5.25 V to -4.75 V (VEE).
- What is the output current capability of each driver?
Each output can source and sink currents in excess of 50 mA.
- How does the device handle high impedance outputs?
The device has a high impedance mode in differential mode, and each driver can be set into a high impedance mode within a ±10 V common mode range.
- What are the benefits of using differential drivers over single-ended drivers?
Differential drivers offer greater noise immunity, common mode rejection, and higher data rates compared to single-ended drivers.
- Are Pb-free packages available for the MC26LS30DR2G?
