TXG1010 - 1-Bit ±10V Ground-Level Translator | Texas Instruments
料号： TXG1010 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.35 | $0.35 |
| 10 | $0.29 | $2.90 |
| 100 | $0.22 | $22.00 |
| 500 | $0.18 | $90.00 |
| 1,000 | $0.15 | $150.00 |
TXG1010 概述
A level translator (also called a level shifter or voltage translator) is a logic IC that enables communication between digital circuits operating at different supply voltages, for example a 1.8V microcontroller driving a 5V peripheral. Within the signal-chain hierarchy, the TXG1010 belongs to the voltage-level-translation family of interface ICs. What distinguishes the TXG1010 family from traditional level translators is its ability to shift signals not only between different logic levels but also across different ground domains, solving the challenge of voltage translation between subsystems whose grounds differ by up to ±10V.
Key features include a wide 1.71V to 5.5V logic-level translation range, ±10V ground-level shifting capability, a fixed-direction architecture that removes the need for a direction-control pin, and a single-channel (1-bit) topology that minimizes board area. The non-galvanic approach means there is no isolation barrier; the device tolerates ground potential differences rather than providing reinforced isolation, which is an important distinction from digital isolators.
Technically, the device translates a logic input referenced to one ground domain into an output referenced to a second ground domain, while simultaneously performing standard low-voltage logic up- or down-translation. The fixed-direction design simplifies control logic and reduces pin count, making it suitable for one-way status, enable, and control signals.
Typical applications include ground-offset compensation between a controller and a motor driver, level shifting in automotive and industrial subsystems where ground lift occurs under load, and interfacing between negative-rail or high-side circuitry and a low-voltage MCU.
When designing with the TXG1010, remember that it is non-galvanic: sustained ground differences must remain within the ±10V rating, and it should not be used where safety isolation is required. Refer to the manufacturer datasheet for the exact truth table and supply sequencing requirements.
This page synthesizes verified distributor and manufacturer data, practical design notes, and selection guidance not found in the datasheet alone. Pricing and stock figures are as of 2026-10-19.
直接替换替代料： TXG1010 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
TXG1011DSER
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TXG1010 规格参数
| Product Type | 1-bit fixed-direction voltage and ground-level translator |
| Channels (Bits) | 1 |
| Direction Control | Fixed direction |
| Logic-Level Translation Range | 1.71 V to 5.5 V |
| Ground-Level Shifting Range | ±10 V |
| Isolation Type | Non-galvanic (no isolation barrier) |
| Manufacturer | Texas Instruments |
| Package Code | DSE (SOT-23, 8-pin) |
| 安装类型 | Surface Mount |
TXG1010 dse (sot-23, 8-pin) 引脚配置指南
TXG1010（dse (sot-23, 8-pin) 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： TXG1010.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TXG1010 适用于 6 应用s: Motor Driver Ground-Offset Interface, Automotive Body and Powertrain Control Signals, Industrial PLC and Sensor Ground-Domain Bridging, High-Side and Negative-Rail Monitoring Interfaces, Inter-Board Logic Signaling Across Separate Supplies, Solar and Energy Storage Ground-Difference Interfacing.
Motor Driver Ground-Offset Interface
In motor-drive systems, current flowing through shared power and sense traces lifts the gate-driver or power-stage ground relative to the controller ground by volts under load. The TXG1010's ±10V ground-level shifting tolerance lets a 3.3V MCU reliably drive a PWM or enable input referenced to the shifted ground, where a conventional level shifter would misread logic thresholds. The fixed-direction architecture matches the one-way nature of PWM and enable commands. Place the translator close to the MCU, route the ground-shifted side directly to the driver reference, and verify worst-case ground lift from IR drop calculations stays within the ±10V rating.
推荐
Automotive Body and Powertrain Control Signals
Automotive ECUs frequently connect modules whose chassis grounds develop potential differences due to current return paths, corrosion resistance, or high-current loads such as starters. The TXG1010 accepts standard 1.71V to 5.5V logic on the controller side and delivers a clean logic level on the load side even when the two grounds differ, solving an error mode that ordinary translators exhibit as intermittent glitches. Its fixed direction suits one-way status and command lines between body-control modules, powertrain sensors, and actuator drivers. Confirm the module's maximum ground-offset in the vehicle harness against the ±10V rating during design review.
推荐
Industrial PLC and Sensor Ground-Domain Bridging
Factory automation systems connect sensors, actuators, and PLC I/O cards distributed across long cable runs and separate power supplies, creating ground potential differences between subsystems. The TXG1010 translates 1.71V to 5.5V logic levels while tolerating up to ±10V of ground difference, enabling reliable handshaking and status signals between an I/O card's logic domain and field-side electronics without adding optocoupler complexity and its associated propagation delay and current consumption. For one-way digital status and enable lines, the single-channel fixed-direction translator minimizes component count and board area in dense I/O modules.
推荐
High-Side and Negative-Rail Monitoring Interfaces
Power-supply and battery-management circuits often place status or fault signals on a rail referenced above or below the controller ground, such as high-side current-sense amplifiers or negative-rail subsystems. The TXG1010 shifts these signals into the low-voltage logic domain while absorbing ground offsets up to ±10V, replacing discrete resistor-divider and transistor level-shift networks with a single integrated, specified device. Its 1.71V logic compatibility allows direct connection to 1.8V microcontroller inputs, and the fixed direction matches the one-way nature of fault and status flags. Verify offset polarity and magnitude against the ±10V envelope.
推荐
Inter-Board Logic Signaling Across Separate Supplies
Multi-board systems - backplanes, stacked modules, and card cages - often power each board from its own supply, so logic crossing the connector references different grounds that can differ by a volt or more, plus transients. The TXG1010 provides 1.71V to 5.5V logic translation plus ±10V ground-shift tolerance in an 8-pin SOT-23 (DSE) footprint, letting designers place one translator per one-way clock, enable, or alarm line at minimal cost and area. Compared with discrete divider networks, it offers specified thresholds, faster edges, and documented ground-offset immunity, improving noise margin and EMI behavior at the inter-board interface.
推荐
Solar and Energy Storage Ground-Difference Interfacing
Photovoltaic and battery-storage installations connect monitoring electronics to power stages whose ground references differ due to series-string potentials and earthing arrangements, producing sustained ground offsets well beyond the tolerance of conventional translators. The TXG1010's ±10V ground-level shifting lets a controller's 3.3V or 5V logic reliably communicate enable and alarm signals to string-level circuitry, while its 1.71V to 5.5V logic range covers standard MCU I/O. Note that it is non-galvanic: where safety isolation between the PV string and user-accessible electronics is required, pair it with or replace it by a certified digital isolator.
推荐
推荐产品汇总
工程参考数据： TXG1010 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TXG1011DSER |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
关键差异点
- Ground-level shifting up to ±10V （对比 TXG1011DSER)
- Solves a failure mode ordinary translators cannot （对比 SN74LVC1T45 (conventional translator))
- Fixed-direction simplicity （对比 TXG1011DSER)
设计说明
The TXG1010 is non-galvanic: it tolerates ground differences up to ±10V but provides no safety isolation. Never deploy it where reinforced isolation, dielectric strength testing, or creepage/clearance compliance is required - use a digital isolator (e.g., ISO77xx) instead. Also confirm that sustained DC ground offset, not just transients, stays within the ±10V envelope; long-term exposure beyond the rating can degrade the device.
Supply sequencing matters in ground-shift translation circuits: check the TXG1010 datasheet for valid VCC sequencing between the two sides before applying power, especially in systems where the ground-offset domain powers up before the logic domain. Decouple each supply pin with a 100nF ceramic capacitor placed within 2 mm of the pin, and add bulk capacitance if the ground-shift domain carries transient currents from adjacent loads.
Because the two sides of the TXG1010 intentionally reference different grounds, PCB layout must keep the two ground domains separate except at the deliberate connection point. Do not pour a single ground plane blindly across the translator; instead, route the ground-shifted reference as a dedicated trace to the remote ground. This preserves the ground-offset immunity the device provides and prevents offset currents from corrupting the logic-domain ground.
合规信息
Compliance data was not present in the provided web data; consult the TI product page for current RoHS/REACH status.
