THS6182D - Low-Power ADSL/PLC Differential Driver | TI
MPN: THS6182D ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
THS6182D Overview
A line driver is an analog output interface that converts upstream signal information into a high-voltage differential signal capable of traversing copper, telephone, or other communications lines. The THS6182 belongs to the current-feedback operational-amplifier family and is positioned between a communications signal source and the physical line. Its differential architecture reduces susceptibility to common-mode noise while providing the voltage swing and current-drive capability needed by xDSL line cards.
Key features include 11 mA per channel in full-bias mode, 7.5 mA per channel in mid-bias mode, 4 mA per channel in low-bias mode, and 0.25 mA per channel in shutdown mode. The manufacturer identifies low distortion, low inverting current noise, and stable operation at low channel current as important benefits for receiver sensitivity and central-office line-card density. An IADJ pin also provides user-controlled bias current for system-level optimization.
According to the manufacturer product page, the THS6182 is pin compatible with EL1503C and EL1508C line-driver families and is available in multiple packages and power-control modes. Its current-feedback differential architecture is intended to preserve signal integrity while minimizing dissipation, making it particularly relevant to high-density ADSL central-office equipment and PLC systems. The advertised 3.2 nV/√Hz inverting current noise supports receiver-sensitive signal paths.
Typical deployments include full-rate ADSL central-office line cards, DSL access multiplexor equipment, remote terminal equipment, and PLC transmitters. In these systems, the driver accepts an upstream differential signal and produces a substantially larger differential output across the line interface. Designers must preserve the intended differential topology, provide suitable bypass capacitance, terminate unused inputs correctly, and verify thermal performance across the required line swing and channel-current range.
A key design consideration is power mode selection. Full-bias mode provides maximum drive when required, while mid- and low-bias modes reduce dissipation when channel current and reach requirements permit. The shutdown state provides the lowest listed current, but enabling and disabling channels must be coordinated with the communication protocol to avoid invalid transmitted states. This page combines verified manufacturer and distributor information with application guidance; it does not infer unprovided electrical limits or invent replacement parts.
Drop-in alternatives for THS6182D — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EL1503C
✅ Drop-In📋 Reference alternative (not in catalog)
EL1508C
✅ Drop-In📋 Reference alternative (not in catalog)
THS6182D Maximum Ratings & Electrical Characteristics
| Product Type | Low-power ADSL and PLC differential line driver |
| Amplifier Architecture | Current-feedback differential driver |
| Logic Polarity | 1/0 driver |
| Number of Channels | 2 channels |
| Full-Bias Supply Current | 11 mA per channel |
| Mid-Bias Supply Current | 7.5 mA per channel |
| Low-Bias Supply Current | 4 mA per channel |
| Shutdown Supply Current | 0.25 mA per channel |
| Minimum Stable Channel Current | 1.8 mA per channel |
| Differential Output Swing | 44 Vpp |
| Maximum Power Output | +20 dBm |
| Inverting Current Noise | 3.2 nV/√Hz |
| Third-Harmonic Distortion at +20 dBm | -76 dBc with high-bias setting |
| Third-Harmonic Distortion at +20 dBm | -74 dBc with low-bias setting |
| Low-Distortion Performance | -88 dBc from 100 kHz to 1 MHz |
| Bias Adjustment | IADJ pin for user-controlled bias current |
| Package | 16-pin SOIC |
| Mounting Type | Surface mount |
| Compatible Driver Families | Pin compatible with EL1503C and EL1508C |
THS6182D 16-pin soic Pin Configuration Guide
Pin configuration for THS6182D (16-pin soic package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for THS6182D.
Refer to the datasheet for full pin configuration.
Typical Applications
THS6182D is suitable for 6 applications: Full-Rate ADSL Central-Office Line Cards, Power-Line Communication Transmitters, DSL Access Multiplexor Equipment, Remote Terminal Equipment, High-Speed Differential Signal Conditioning, Communication Test and Measurement Equipment.
Full-Rate ADSL Central-Office Line Cards
The THS6182D fits full-rate ADSL line-card transmit paths because it is designed as a differential line driver rather than a general-purpose low-voltage amplifier. Texas Instruments highlights its low dissipation and multiple current settings for high-density central-office equipment. The selectable 11 mA, 7.5 mA, and 4 mA per-channel modes let the designer trade reach and drive against heat in each line-card channel, while the 44 Vpp differential swing provides the required high-voltage interface capability. Its -88 dBc low-distortion figure is also relevant to preserving modulation quality. The exact transformer, line filter, protection network, supply rails, and feedback components must follow the manufacturer application guidance.
Recommended
Power-Line Communication Transmitters
The THS6182D is suitable for PLC transmitter output stages where a modulated signal must be converted into a large differential line voltage. Its current-feedback architecture, wide output swing, and selectable bias modes provide flexibility across line-impedance and power-budget conditions. The low-bias mode reduces current to 4 mA per channel compared with 11 mA per channel in full bias, but the designer must confirm that the reduced drive still meets reach and distortion targets. The advertised 3.2 nV/√Hz inverting current noise and -88 dBc low-distortion performance help support a low-error signal path. Coupling, surge protection, isolation, and output filtering must be designed for the actual power network.
Recommended
DSL Access Multiplexor Equipment
THS6182D can serve as the line-driver element in DSL access equipment requiring repeatable differential output behavior across multiple channels. Its per-channel bias controls are valuable in rack-mounted systems where each line may have a different reach target or power budget. Full-bias operation provides the highest listed channel current, while low-bias operation reduces dissipation for channels that do not require maximum drive. The 16-SOIC package also supports conventional surface-mount assembly and makes the device relevant to line-card redesigns. System designers should verify the exact pinout, recommended supply rails, feedback network, thermal margin, and line termination against the manufacturer datasheet before release to production.
Recommended
Remote Terminal Equipment
The THS6182D is applicable to remote-terminal transmit interfaces where a compact, low-power differential driver is needed. Its shutdown current of 0.25 mA per channel is useful when a system needs to reduce consumption during inactive periods, while the low-bias mode offers an intermediate operating point. Because line equipment may be exposed to long cables, the external protection and coupling network must be selected for the target environment. The device's current-feedback topology and low-distortion performance help preserve signal quality, but the final eye, power, and thermal performance depends on the complete channel design. Use the official THS6182 documentation for layout and application-circuit details.
Recommended
High-Speed Differential Signal Conditioning
The THS6182D can be used when a communications system needs a high-voltage differential output stage rather than a conventional logic buffer. Its 44 Vpp swing, selectable bias current, and current-feedback architecture allow the output stage to be tuned for the intended load and signal-quality budget. The IADJ pin provides an additional control point for system-level bias-current adjustment, which can be useful in laboratory and production calibration strategies. This application still requires careful feedback and stability analysis; the provided material does not include the complete transfer function or recommended compensation network. Designers should preserve differential symmetry, minimize parasitic asymmetry, and verify line impedance before deploying the driver.
Recommended
Communication Test and Measurement Equipment
THS6182D is relevant to test equipment that generates differential communications waveforms or emulates line-driver loading. Its multiple bias modes make it possible to compare output behavior at 11 mA, 7.5 mA, and 4 mA per channel, while shutdown supports controlled inactive states at 0.25 mA per channel. The listed 3.2 nV/√Hz inverting current noise and -88 dBc low-distortion performance provide useful characterization targets when evaluating the surrounding signal chain. However, the complete datasheet must define the acceptable bandwidth, slew rate, output-current limits, supply rails, and stability conditions for the exact test configuration. Treat those values as design inputs to verify, not as assumptions.
Recommended
Recommended Products Summary
Engineering reference data for THS6182D — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EL1503C | EL1508C |
|---|---|---|---|
| Brand | Texas Instruments | Microchip Technology | Microchip Technology |
| Pin Compatibility | Manufacturer states pin compatible with EL1503C and EL1508C | Named as compatible by THS6182 manufacturer | Named as compatible by THS6182 manufacturer |
Key Differentiators
- Broad selectable power-control range (vs EL1503C)
- User-adjustable bias current (vs EL1508C)
- Communications-focused distortion and noise specifications (vs EL1503C)
Design Notes
Choose the bias mode against the actual line-current and thermal requirement rather than assuming maximum drive is always best. The manufacturer lists 11 mA per channel in full bias, 7.5 mA in mid bias, and 4 mA in low bias, so switching to a lower mode can materially reduce dissipation. Verify the output waveform, reach, distortion, and load stability at the selected setting. Shutdown at 0.25 mA per channel should be coordinated with the protocol so the line is not disabled during an active transmission interval.
Preserve a symmetrical differential path from the driver through feedback, coupling, protection, and line termination. Keep the output loop area small, provide a low-impedance return for each supply rail, and place bypass capacitors close to the relevant device pins. Because the THS6182 is a current-feedback line driver, feedback and compensation components are central to loop stability; use the manufacturer application circuit and datasheet values rather than copying a generic op-amp layout.
Do not treat a stated 44 Vpp differential swing as permission to exceed the device's absolute supply or output limits. Confirm the complete recommended operating conditions, supply polarity, feedback configuration, output loading, and thermal limits in the official datasheet. Also distinguish THS6182D from other THS6182 suffixes: the retrieved distributor evidence identifies THS6182D as a 16-SOIC ordering configuration, while the family may have multiple package and option variants.
Compliance Information
The verified manufacturer and distributor snippets do not provide compliance declarations for RoHS, REACH, AEC-Q100, lead-free status, halogen-free status, or conflict minerals. These fields remain unknown rather than being inferred from the manufacturer brand.
