Specifications
| Type | Description |
|---|---|
| Part Number | TXB0102 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | VSSOP-8 2.30 mm x 2.00 mm; DSBGA-8 0.90 mm x 1.80 mm |
| Channels | 2-bit |
| Direction Control | Auto direction sensing |
| A-Port Supply Voltage | 1.2 to 3.6 V |
| B-Port Supply Voltage | 1.65 to 5.5 V |
| Supply Relationship | VCCA <= VCCB |
| Supported Voltage Nodes | 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V |
| Output Enable Function | OE low places all outputs in high-impedance state |
| VCC Isolation Feature | All outputs high impedance if either VCC input is at GND |
| Partial Power Down Support | Ioff circuitry disables outputs when powered down |
| Maximum Low-Power Consumption | 4 uA max |
| Operating Free-Air Temperature | -40 to 85 °C |
| High-Level Input Voltage | Min VCCI x 0.65 |
| High-Level Input Voltage | Min VCCA x 0.65, Max 5.5 V |
| Low-Level Input Voltage | Min 0 V, Max VCCI x 0.35 |
| Low-Level Input Voltage | Min 0 V, Max VCCA x 0.35 |
| A-Port High-Impedance or Power-Off Output Voltage Range | 0 to 3.6 V |
| B-Port High-Impedance or Power-Off Output Voltage Range | 0 to 5.5 V |
| A-Port Input Transition Rise/Fall Rate | 40 ns/V max |
| B-Port Input Transition Rise/Fall Rate | 40 ns/V max |
| B-Port Input Transition Rise/Fall Rate | 30 ns/V max |
| A-Port ESD Human Body Model | ±2500 V |
| B-Port ESD Human Body Model | ±1500 V |
| A-Port ESD Charged Device Model | ±1500 V |
| B-Port ESD Charged Device Model | ±1500 V |
| A-Port ESD Machine Model | ±200 V |
| B-Port ESD Machine Model | ±200 V |
| Latch-Up Performance | >100 mA |
| Absolute Maximum VCCA | -0.5 to 4.6 V |
| Absolute Maximum VCCB | -0.5 to 6.5 V |
| Absolute Maximum A-Port Input Voltage | -0.5 to 4.6 V |
| Absolute Maximum B-Port Input Voltage | -0.5 to 6.5 V |
| Continuous Output Current | ±50 mA |
| Continuous Current Through VCCA, VCCB, or GND | ±100 mA |
| Junction Temperature | 150 °C |
| Storage Temperature | -65 to 150 °C |
| A-Port Output High Voltage | Min 1.1 V |
| A-Port Output Low Voltage | Max 0.3 V |
| OE Input Leakage Current | ±1 uA |
| Ioff A-Port Leakage | ±1 uA |
| Ioff B-Port Leakage | ±1 uA |
| High-Impedance Output Leakage | ±1 uA |
| OE Input Capacitance | 2.5 pF typ |
| A-Port I/O Capacitance | 5 pF typ |
| B-Port I/O Capacitance | 11 pF typ |
| A-Port Output High Voltage | Min VCCA - 0.4 V |
| A-Port Output Low Voltage | Max 0.4 V |
| B-Port Output High Voltage | Min VCCB - 0.4 V |
| B-Port Output Low Voltage | Max 0.4 V |
| OE Input Leakage Current | ±2 uA |
| High-Impedance Output Leakage | ±2 uA |
| OE Input Capacitance | 3 pF max |
| A-Port I/O Capacitance | 6 pF max |
| B-Port I/O Capacitance | 14 pF max |
| Datasheet Status | request_only |
Product Overview
The TXB0102 is a Texas Instruments 2-bit noninverting bidirectional voltage-level translator for low-voltage digital signal translation. It uses auto direction sensing for bidirectional voltage translation, so no separate direction-control input is specified in the extracted facts. Supported voltage nodes include 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5 V.
Recommended supplies are 1.2 to 3.6 V on the A port and 1.65 to 5.5 V on the B port, with VCCA <= VCCB. OE is referenced to VCCA, and driving OE low places all outputs in the high-impedance state. If either VCC input is at GND, all outputs are high impedance, and Ioff circuitry disables outputs during power down to limit current backflow.
The device is specified for -40 to 85 °C operation and is available in VSSOP-8 2.30 mm x 2.00 mm and DSBGA-8 0.90 mm x 1.80 mm packages. Its specified capacitance, leakage, ESD, latch-up, and transition-rate limits support use in compact low-voltage digital interfaces requiring two translated bidirectional channels.
Key Features
- 2-bit noninverting bidirectional voltage translation
- Auto direction sensing for bidirectional data paths
- A-port supply range from 1.2 to 3.6 V
- B-port supply range from 1.65 to 5.5 V
- Supports 1.2 V through 5 V voltage nodes
- OE low places all outputs high impedance
- VCC isolation sets outputs high impedance at GND
- Ioff circuitry disables outputs when powered down
- 4 uA maximum ICC low-power consumption
- -40 to 85 °C free-air operating range
Typical Applications
- Low-voltage bidirectional signal translation
- 1.2 V to 5 V logic interfaces
- Two-channel mixed-voltage data lines
- Power-isolated digital interfaces
- OE-controlled high-impedance buses
- Partial-power-down digital systems
Procurement Notes
When requesting a quote for TXB0102, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of device is the TXB0102?
The TXB0102 is a Texas Instruments 2-bit noninverting bidirectional voltage-level translator. It supports auto direction sensing for bidirectional translation between supported low-voltage nodes.
What supply ranges does the TXB0102 support?
The A-port supply range is 1.2 to 3.6 V, while the B-port supply range is 1.65 to 5.5 V. The recommended supply relationship requires VCCA to be less than or equal to VCCB.
What happens when OE is driven low?
The OE input is referenced to VCCA. When OE is low, all outputs are placed in the high-impedance state, allowing the translated lines to be disabled.
Does the TXB0102 support partial power down?
Yes. The extracted datasheet facts specify Ioff circuitry that disables outputs when the device is powered down, preventing current backflow into the device.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.