Overview
The DS90LT012A, produced by Texas Instruments, is a single CMOS differential line receiver designed for applications requiring ultra-low power dissipation, low noise, and high data rates. This device utilizes Low Voltage Differential Swing (LVDS) technology to support data rates exceeding 400 Mbps (200 MHz). It is particularly suited for high-speed interface applications, offering a low-power alternative to traditional PECL/ECL devices. The DS90LT012A accepts low-voltage differential input signals and translates them to 3-V CMOS output levels, making it versatile for various high-speed data transmission needs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Temperature Range | -40 | 85 | °C | |
| Supply Voltage | 2.7 | 3.3 | 3.6 | V |
| Data Rate | 400 | Mbps | ||
| Propagation Delay Time | 1.0 | 1.8 | 3.5 | ns |
| Differential Skew | 100 | ps | ||
| Integrated Termination Resistor | 102 | Ω | ||
| Package Type | SOT-23, WSON-8 | |||
| Power Dissipation (Typical @ 3.3V) | 10 | mW |
Key Features
- Compatible with ANSI TIA/EIA-644-A Standard
- >400 Mbps (200 MHz) switching rates
- 100 ps differential skew (typical)
- 3.5 ns maximum propagation delay
- Integrated line termination resistor (102Ω typical) for point-to-point applications
- Single 3.3V power supply design (2.7V to 3.6V range)
- Power down high impedance on LVDS inputs
- Accepts small swing (350 mV typical) differential signal levels
- LVDS receiver inputs accept LVDS/BLVDS/LVPECL inputs
- Supports open, short, and terminated input fail-safe
- Pinout simplifies PCB layout
- Low Power Dissipation (10mW typical @ 3.3V static)
- SOT-23 5-lead package and leadless WSON-8 package (3x3 mm body size)
- Electrically similar to the DS90LV018A
- Fabricated with advanced CMOS process technology
- Industrial temperature operating range (−40°C to +85°C)
Applications
The DS90LT012A is designed for high-speed interface applications that require low power consumption and minimal noise. It is particularly useful in:
- High-speed data transmission systems
- Point-to-point communication links
- Industrial control systems
- Aerospace and defense applications
- Automotive systems requiring high-speed data transfer
- Medical devices needing reliable and fast data communication
Q & A
- What is the maximum data rate supported by the DS90LT012A?
The DS90LT012A supports data rates in excess of 400 Mbps (200 MHz).
- What is the typical propagation delay of the DS90LT012A?
The typical propagation delay is 1.8 ns, with a maximum of 3.5 ns.
- What types of input signals does the DS90LT012A accept?
The DS90LT012A accepts LVDS, BLVDS, and LVPECL input signals.
- Does the DS90LT012A have integrated line termination?
- What is the operating temperature range of the DS90LT012A?
- What are the package options for the DS90LT012A?
- How much power does the DS90LT012A typically consume?
- Is the DS90LT012A RoHS compliant?
- What is the differential skew of the DS90LT012A?
- Does the DS90LT012A support fail-safe conditions?
