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Texas Instruments THS6212IRHFT
- Part No.:
- THS6212IRHFT
- Manufacturer:
- Texas Instruments
- Category:
- Telecom
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
THS6212IRHFT.pdf
- Description:
- IC TELECOM INTERFACE 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,964
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Product details
Overview
THS6212IRHFT from Texas Instruments is a differential broadband PLC line driver amplifier with current-feedback architecture, delivering >665mA output current into 25Ω, 49VPP output swing at 28V supply, and –86dBc HD2 / –101dBc HD3 distortion at 1MHz for high-fidelity power-line communications up to 30MHz.
For engineers reviewing the THS6212IRHFT datasheet, THS6212IRHFT pinout, THS6212IRHFT application, or THS6212IRHFT equivalent, this page provides verified specifications, bias-mode trade-offs, thermal design guidance, and real-world PLC line-driving implementation details aligned with SGCC HPLC profiles and IEC 61334-5-1 compliance requirements.
Technical Context
The THS6212IRHFT employs a dual-channel current-feedback amplifier topology with independent noninverting (D1_IN+, D2_IN+) and inverting (D1_FB, D2_FB) inputs per channel, enabling precise differential gain control via external feedback resistors (e.g., RF = 1.24kΩ for GDIFF = 10V/V). Its open-loop transimpedance gain reaches 1500kΩ at 28V supply, supporting stable operation across 10–28V rails.
Bias mode selection is implemented via two digital control pins (BIAS-1, BIAS-2), setting full/mid/low-bias states or shutdown - each altering quiescent current (23mA/17.5mA/11.9mA/1.1mA) and large-signal bandwidth (170MHz/175MHz/180MHz at VO = 40VPP), while preserving <2.5nV/√Hz input voltage noise and >55dB PSRR at 1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW | 205MHz at GDIFF = 10V/V, 28V supply - enables support for wideband PLC signals up to 30MHz with flat gain response. |
| Output current | >665mA into 25Ω load - drives high-impedance PLC couplers without external current boosting stages. |
| Output swing | 49VPP into 100Ω differential load at 28V supply - meets 14.5dBm line power requirement per IEC 61334-5-1. |
| Harmonic distortion | –86dBc HD2 and –101dBc HD3 at 1MHz - ensures low spectral regrowth in multi-tone PLC transmission bands. |
| Input voltage noise | 2.5nV/√Hz - preserves SNR in high-gain, low-level signal conditioning paths before line coupling. |
| Supply range | 10V to 28V - accommodates industrial PLC systems with variable DC bus voltages and brown-out resilience. |
| Thermal protection | 175°C junction shutdown - prevents latch-up during sustained overloads or poor PCB thermal design. |
Pinout & Package
The THS6212IRHFT is housed in a 24-pin VQFN package (RHF) measuring 5mm × 4mm with an exposed thermal pad for enhanced heat dissipation. The package requires soldering the thermal pad to a dedicated copper plane for reliable operation above 1W dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D1_IN+, D2_IN+ | Noninverting inputs | Accept balanced differential input signals; common-mode range extends ±10V at 28V supply. |
| D1_FB, D2_FB | Inverting inputs | Connect to external feedback network; inverting input resistance is 38Ω for stable current-feedback loop compensation. |
| D1_OUT, D2_OUT | Differential outputs | Deliver complementary high-current outputs; output impedance is 0.01Ω differential at 1MHz for minimal loss into 100Ω line transformers. |
| VS+, VS– | Power rails | Support 10–28V single-supply operation; PSRR >55dB isolates output from rail noise at 1MHz. |
| BIAS-1, BIAS-2 | Digital bias control | Two-pin parallel interface sets full/mid/low-bias or shutdown; logic thresholds are 0.8V (LO) and 1.9V (HI) referenced to GND. |
| IADJ | Analog bias adjustment | Sinks current to set fine-grained quiescent current; 0Ω RADJ yields full bias, increasing RADJ reduces current linearly. |
| GND | Reference node | Not earth ground; voltage range is VS– to (VS+ – 5V); serves as bias reference for all control pins. |
| NC (Pins 5–16) | No connect | Internally unconnected; must be left floating or tied to GND per layout best practices to minimize parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable bias modes | Three discrete bias states (full/mid/low) + shutdown reduce total system power by up to 95% when full performance isn't required for short-line PLC segments. |
| High-voltage differential drive | 49VPP swing into 100Ω at 28V supply enables direct connection to standard PLC line coupling transformers without external level-shifting circuitry. |
| Low-noise current-feedback core | 2.5nV/√Hz voltage noise and 1.4pA/√Hz noninverting current noise preserve signal integrity in high-gain PLC receiver front-ends. |
| Thermally robust packaging | VQFN-24 with exposed thermal pad achieves RθJB = 20.9°C/W - allows continuous 1.2W dissipation with 2-layer 2oz copper PCB and 1-in² thermal pad area. |
| Fast turn-on/turn-off | 25ns turn-on delay and 275ns turn-off delay enable time-sliced burst transmission in TDMA-based PLC protocols like PRIME and G3-PLC. |
Applications
| Smart Metering Transmitter | LV PLC Repeater Node |
|---|---|
Use Scenario: Transmitting OFDM symbols over 230V AC power lines in residential smart meter deployments compliant with DLMS/COSEM and GB/T 31983.31–2017. IC Role / Device Role / Timing Role: Differential line driver amplifying baseband I/Q signals prior to coupling into mains via 1:1 isolation transformer. Use Value: –101dBc HD3 at 1MHz ensures out-of-band emissions remain below –85dBm/Hz, meeting CISPR 11 Class B conducted emission limits without additional filtering. | Use Scenario: Boosting weak PLC signals in multi-drop apartment building networks where line attenuation exceeds 60dB at 10MHz. IC Role / Device Role / Timing Role: High-current repeater stage re-amplifying received differential signals before retransmission on downstream branches. Use Value: >665mA sourcing/sinking capability maintains signal amplitude across 100m of twisted-pair wiring with 25Ω characteristic impedance. |
| SGCC HPLC Master Node | Industrial PLC Gateway |
Use Scenario: Serving as the physical layer transmitter in State Grid Corporation of China (SGCC) High-Speed PLC master concentrators operating in Band 0–3 (1–12MHz). IC Role / Device Role / Timing Role: Final-stage driver generating 14.5dBm line power with crest factor ≤5V/V under dynamic load conditions. Use Value: 205MHz small-signal bandwidth supports 12MHz Nyquist-limited modulation with <0.1dB gain flatness up to 13MHz. | Use Scenario: Enabling PLC communication in factory automation systems with noisy 24VDC control bus environments. IC Role / Device Role / Timing Role: Isolated line driver interfacing between isolated MCU UART and power-line PHY, rejecting common-mode noise via >65dB CMRR. Use Value: 83dB PSRR and 65dB CMRR suppress switching noise from adjacent 24VDC SMPS supplies, preventing bit errors in G3-PLC frames. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential broadband line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS6222IRHFT | Integrates common-mode buffer; same pinout but adds internal CMFB loop and eliminates need for external CM voltage source. | Reduces external component count in single-ended-to-differential conversion stages; not drop-in compatible due to different bias pin mapping and CMFB feedback path. | Select THS6222IRHFT when designing new SGCC HPLC nodes requiring simplified CM level management and reduced BOM cost. |
| LMH6882IRMTR | Higher 3.2GHz GBW, lower 1.1nV/√Hz noise, but only 200mA output current and no programmable bias modes. | Optimized for RF instrumentation and test equipment, not PLC line driving; lacks thermal shutdown and 28V supply rating. | Choose LMH6882IRMTR only for lab-grade wideband signal generation where output current and PLC-specific distortion specs are secondary. |
Compared with THS6212IRHFT, THS6222IRHFT simplifies system-level CM voltage control at the cost of reduced flexibility in bias configuration, while LMH6882IRMTR offers superior RF performance but fails to meet PLC line-drive current, voltage swing, and thermal safety requirements.
Availability
THS6212IRHFT is available at Aetrix Electronics and suitable for smart metering transmitters, LV PLC repeater nodes, SGCC HPLC master concentrators, and industrial PLC gateways requiring stable component supply across extended temperature ranges (–40°C to +85°C) and long product lifecycles.
Supply support for THS6212IRHFT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The THS6212IRHFT belongs to TI's high-speed line driver amplifier portfolio, engineered specifically for broadband power-line communications systems demanding high output current, low distortion, and configurable power efficiency in harsh electrical environments.
FAQ
What is the maximum differential output voltage swing of the THS6212IRHFT at 28V supply?
The THS6212IRHFT delivers 49VPP differential output swing into a 100Ω load at 28V supply, corresponding to ±24.5V per side relative to midsupply. This meets the 14.5dBm line power requirement defined in IEC 61334-5-1 for broadband PLC applications and enables direct coupling to standard 1:1 isolation transformers without external level-shifting circuitry.
How does the THS6212IRHFT achieve low harmonic distortion in PLC applications?
The THS6212IRHFT achieves –86dBc HD2 and –101dBc HD3 at 1MHz through its current-feedback architecture, optimized transistor sizing, and precision laser-trimmed internal resistors. These features minimize even- and odd-order nonlinearities across the 1–30MHz PLC band, ensuring spectral purity required for OFDM-based protocols like G3-PLC and PRIME without violating CISPR 11 conducted emission limits.
Can the THS6212IRHFT operate from a single 12V supply?
Yes, the THS6212IRHFT supports operation from 10V to 28V supply rails. At 12V, it delivers 195MHz large-signal bandwidth and 16VPP output swing into 50Ω, making it suitable for low-voltage PLC implementations such as battery-backed smart sensors. Quiescent current drops to 19.5mA/18.8mA (VS+/VS−) in full-bias mode, reducing thermal load on compact PCBs.
What is the function of the IADJ pin on the THS6212IRHFT?
The IADJ pin on the THS6212IRHFT is an analog bias current adjustment terminal that sinks current proportional to an external resistor (RADJ). By connecting RADJ between IADJ and VS–, designers can fine-tune quiescent current continuously between full-bias (0Ω) and low-bias levels, enabling precise power/performance trade-offs beyond the three discrete BIAS-1/BIAS-2 modes.
Does the THS6212IRHFT include thermal protection?
Yes, the THS6212IRHFT incorporates integrated thermal protection that triggers shutdown at approximately 175°C junction temperature. This safeguard prevents permanent damage during sustained overload, poor heatsinking, or ambient temperature excursions beyond 85°C. Recovery occurs automatically once junction temperature falls below the hysteresis threshold (~160°C), restoring normal operation without external intervention.
THS6212IRHFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Amplifier
- Interface:
- -
- Number of Circuits:
- 1
- Voltage - Supply:
- 10V ~ 28V
- Current - Supply:
- 21mA
- Power (Watts):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-VQFN (5x4)
THS6212IRHFT FAQ
1.How can I place an order for THS6212IRHFT through Aetrix?
Please submit a Request for Quotation (RFQ) for THS6212IRHFT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for THS6212IRHFT reliable?
The price and inventory of THS6212IRHFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS6212IRHFT is usually 5 days.
3.What payment methods are accepted for THS6212IRHFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS6212IRHFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS6212IRHFT?
THS6212IRHFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS6212IRHFT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for THS6212IRHFT?
For technical support, including THS6212IRHFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS6212IRHFT requirements.
6.How does Aetrix verify that THS6212IRHFT is sourced from the original manufacturer or authorized distributors?
All THS6212IRHFT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that THS6212IRHFT meets industry standards.
7.What is the process for return or replacement of THS6212IRHFT?
All THS6212IRHFT units undergo pre-shipment inspection (PSI). If there is an issue with THS6212IRHFT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The THS6212IRHFT part is unused and in its original packaging.
Return procedure for THS6212IRHFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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