Overview
The GTL2002D/DG,118 is a 2-bit bidirectional low-voltage translator manufactured by NXP USA Inc. This device is part of the Gunning Transceiver Logic - Transceiver Voltage Clamps (GTL-TVC) family, designed to provide high-speed voltage translation with low ON-state resistance and minimal propagation delay.
The GTL2002D/DG,118 allows for bidirectional voltage translations between 1.0 V and 5.0 V without the need for a direction pin. It features 2 NMOS pass transistors (Sn and Dn) with a common gate (GREF) and a reference transistor (SREF and DREF), enabling seamless translation between higher and lower voltages selected by the user.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | SO8, TSSOP8, VSSOP8, XQFN8 |
| Number of Leads | 8 |
| Voltage Range (VCCA and VCCB) | 1.0 V to 5.5 V |
| Operating Temperature | -40°C to +85°C |
| Translator Type | Voltage Level |
| Output Type | Open Drain |
| Channels per Circuit | 2 |
| Channel Type | Bidirectional |
Key Features
- Bidirectional voltage translation between 1.0 V and 5.0 V without a direction pin.
- High-speed operation with low ON-state resistance and minimal propagation delay.
- Features 2 NMOS pass transistors (Sn and Dn) with a common gate (GREF) and a reference transistor (SREF and DREF).
- Auto-direction sensing, eliminating the need for directional control.
- Excellent ESD protection for lower voltage devices.
- Symmetrical transistor fabrication ensures minimal deviation in voltage or propagation delay.
Applications
- Bidirectional or unidirectional voltage level translation in various applications.
- Translation between low-voltage processor I/O ports (e.g., 1.0 V, 1.2 V, 1.5 V, or 1.8 V) and standard I/O signal levels (e.g., 3.3 V or 5.0 V).
- GTL/GTL+ to LVTTL/TTL signal level translations.
Q & A
- What is the primary function of the GTL2002D/DG,118?
The primary function is to provide bidirectional voltage translation between 1.0 V and 5.0 V without the need for a direction pin.
- What types of packages are available for the GTL2002D/DG,118?
The device is available in SO8, TSSOP8, VSSOP8, and XQFN8 packages.
- What is the operating temperature range of the GTL2002D/DG,118?
The operating temperature range is -40°C to +85°C.
- Does the GTL2002D/DG,118 require a direction pin for voltage translation?
No, it does not require a direction pin due to its auto-direction sensing capability.
- What kind of ESD protection does the GTL2002D/DG,118 offer?
The device provides excellent ESD protection for lower voltage devices.
- What are some common applications for the GTL2002D/DG,118?
Common applications include voltage level translation in processor I/O ports and signal level translations between GTL/GTL+ and LVTTL/TTL.
- Is the GTL2002D/DG,118 recommended for new designs?
No, it is not recommended for new designs; instead, use the replacement part NVT2002DP.
- What is the significance of the reference transistors (SREF and DREF) in the GTL2002D/DG,118?
The reference transistors help in limiting the voltage on the Sn port when the Dn port is HIGH and ensure minimal deviation in voltage or propagation delay.
- How does the GTL2002D/DG,118 protect less ESD-resistant devices?
The device's transistors provide excellent ESD protection, safeguarding less ESD-resistant devices.
- What is the benefit of symmetrical transistor fabrication in the GTL2002D/DG,118?
Symmetrical transistor fabrication ensures minimal deviation in voltage or propagation delay, making it superior to discrete transistor voltage translation solutions.
