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Texas Instruments THS4082CDGN
- Part No.:
- THS4082CDGN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4082CDGN.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:11,973
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Product details
Overview
THS4082CDGN from Texas Instruments is a dual-channel, ultralow-power, high-speed voltage-feedback operational amplifier optimized for video and communication signal conditioning. It delivers 175 MHz bandwidth (G = 1), 230 V/µs slew rate, 43 ns settling time (0.1%), ±15 V supply operation, and 3.4 mA per channel quiescent current - enabling low-power HD video distribution and broadband analog front-end designs.
For engineers reviewing the THS4082CDGN datasheet, THS4082CDGN pinout, THS4082CDGN application, or THS4082CDGN equivalent, key selection considerations include its dual-channel MSOP-8 PowerPAD™ package, video-grade distortion performance (0.01% differential gain, −64 dBc THD at 1 MHz), and thermal design requirements for the exposed thermal pad.
Technical Context
The THS4082CDGN employs a dielectrically isolated complementary bipolar process with GHz fT transistors, enabling voltage-feedback architecture with high open-loop gain (≥10 V/mV), wide common-mode input range (±13.8 V at ±15 V supplies), and robust channel-to-channel crosstalk rejection (−75 dB at 1 MHz). Its internal compensation targets bandwidth/slew-rate optimization rather than capacitive-load tolerance.
It operates across dual supplies from ±5 V to ±15 V (or single 10–30 V), supports rail-to-rail output swing up to ±13.8 V into 1 kΩ, and features integrated ESD protection. The DGN package's exposed thermal pad requires PCB-level thermal vias and copper area for junction temperature control under sustained 85 mA output drive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (−3 dB, G = 1) | 175 MHz at ±15 V - enables full HD (1080p60) baseband video amplification without gain peaking. |
| Slew Rate | 230 V/µs at ±15 V - supports fast transient response in pulse-amplifier and ADC driver applications. |
| Settling Time (0.1%) | 43 ns at ±15 V, 5-V step - meets timing budgets for high-speed data acquisition systems. |
| Total Harmonic Distortion | −64 dBc at 1 MHz, 2 VPP, RL = 150 Ω - preserves color fidelity in NTSC/PAL video signal paths. |
| Quiescent Current | 3.4 mA per channel at ±15 V - allows dual-channel high-speed amplification within 100 mW system power envelopes. |
| Differential Gain/Phase | 0.01% / 0.05° at NTSC, ±15 V - satisfies broadcast-grade video linearity standards. |
| Output Drive | 85 mA continuous per channel into 20 Ω - drives 75 Ω coaxial cables directly with series termination. |
Pinout & Package
The THS4082CDGN is housed in an 8-pin MSOP PowerPAD™ (DGN) package with an electrically isolated thermal pad on the underside. Thermal pad soldering to PCB copper is mandatory for rated power dissipation (2.14 W at TA = 25°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | High-current, low-distortion output node; requires local 0.1 µF ceramic decoupling and series isolation resistor for >10 pF loads. |
| 1IN− | Channel 1 inverting input | High-impedance node sensitive to stray capacitance; must be routed short and away from noisy traces. |
| 1IN+ | Channel 1 noninverting input | Reference point for gain-setting network; RC filter placement here enables single-pole low-pass configuration. |
| VCC− | Negative supply rail | Return path for both channels; requires dedicated 6.8 µF tantalum + 0.1 µF ceramic decoupling adjacent to pin. |
| VCC+ | Positive supply rail | Power input for both channels; decoupling identical to VCC−; shared supply routing permitted if layout minimizes ground bounce. |
| 2OUT | Channel 2 output | Independent output with identical drive and settling specs as 1OUT; crosstalk to 1OUT is −75 dB at 1 MHz. |
| 2IN− | Channel 2 inverting input | Electrically isolated from 1IN−; layout symmetry recommended to match channel performance. |
| 2IN+ | Channel 2 noninverting input | Independent reference node; no internal connection to 1IN+; supports independent gain configurations per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow quiescent current | 3.4 mA per channel enables dual-channel high-speed amplification in thermally constrained portable video systems. |
| Video-optimized linearity | 0.01% differential gain error ensures minimal hue/saturation shift in analog RGB or composite video distribution. |
| Thermally enhanced PowerPAD™ | DGN package's 2.14 W power rating at 25°C ambient reduces need for external heatsinks in space-constrained PCBs. |
| Wide supply range | ±5 V to ±15 V operation allows reuse across legacy ±12 V and modern ±5 V signal-chain architectures. |
| High output drive | 85 mA per channel supports direct 75 Ω cable driving with 20 Ω series termination, eliminating buffer stages. |
Applications
| HD Video Distribution | Broadband ADC Driver |
|---|---|
Use Scenario: Amplifying and distributing 1080p60 RGB or YPbPr signals across multiple displays in digital signage or broadcast monitoring systems. IC Role / Device Role / Timing Role: Dual-channel video buffer with DC-coupled gain stage, preserving sync timing and minimizing interlace artifacts. Use Value: 35 MHz 0.1 dB flatness and 0.01% differential gain maintain color accuracy over full HD bandwidth without post-correction. | Use Scenario: Driving the input of a 12-bit, 100 MSPS pipeline ADC in communications test equipment or radar receivers. IC Role / Device Role / Timing Role: High-fidelity track-and-hold buffer with 43 ns settling to 0.1%, ensuring accurate sampling of fast analog waveforms. Use Value: 230 V/µs slew rate and −64 dBc THD prevent harmonic folding and maintain SFDR > 70 dB in IF sampling chains. |
| Low-Power Baseband Modem | High-Speed Pulse Amplifier |
Use Scenario: Conditioning I/Q baseband signals in battery-powered LTE/Wi-Fi transceivers before DAC output or RF upconversion. IC Role / Device Role / Timing Role: Dual-channel, low-power gain block with matched channel performance for quadrature signal integrity. Use Value: 3.4 mA per channel quiescent current enables dual-path signal processing within 100 mW total analog subsystem budget. | Use Scenario: Amplifying narrow pulses (e.g., laser diode drivers, time-of-flight sensors) requiring sub-50 ns edge fidelity. IC Role / Device Role / Timing Role: Fast-settling pulse shaper with minimal overshoot and ringing due to optimized voltage-feedback compensation. Use Value: 43 ns 0.1% settling and 175 MHz bandwidth preserve pulse width and amplitude accuracy in precision timing circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4032CDGN | 100 MHz bandwidth, 100 V/µs slew rate, 10 mA per channel supply current - lower speed, higher power. | Better noise performance (nV/√Hz) but insufficient bandwidth for HD video; suited for medium-speed instrumentation. | Select when SNR > bandwidth and THD requirements allow trade-off of speed for lower input noise. |
| LMH6722MA/NOPB | 380 MHz bandwidth, 3000 V/µs slew rate, 12.5 mA per channel - higher speed, higher power, SOIC-8 only. | No PowerPAD™ thermal solution; requires external heatsinking above 50 mW; unsuitable for ultra-low-power designs. | Select when >300 MHz bandwidth is required and thermal constraints permit SOIC-8 with added cooling. |
Compared with THS4032CDGN, THS4082CDGN trades 75 MHz bandwidth for 6.6 mA lower quiescent current and superior video linearity; compared with LMH6722MA/NOPB, it sacrifices 205 MHz bandwidth and 2770 V/µs slew rate to achieve 9.1 mA lower supply current and integrated thermal management in MSOP-8.
Availability
THS4082CDGN is available at Aetrix Electronics and suitable for HD video distribution, broadband ADC driver, low-power baseband modem, and high-speed pulse amplifier applications requiring stable component supply and long-term industrial availability.
Supply support for THS4082CDGN 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 company specializing in analog and embedded processing technologies, with leadership in high-performance op-amps, data converters, and power management ICs.
The THS4082CDGN belongs to TI's THS408x family of ultralow-power, high-speed voltage-feedback amplifiers designed specifically for video signal conditioning and broadband analog front-end applications where power efficiency and distortion performance are critical.
FAQ
What is the maximum supply voltage rating for the THS4082CDGN?
The THS4082CDGN has an absolute maximum supply voltage rating of ±16.5 V across VCC+ and VCC− pins. Operation beyond this limit risks permanent damage. Recommended operating range is ±5 V to ±15 V for dual-supply configurations, or 10 V to 30 V for single-supply use. Derating is required at elevated temperatures per the datasheet's dissipation rating table.
Does the THS4082CDGN require external compensation for stability?
No, the THS4082CDGN is internally compensated for unity-gain stability with a voltage-feedback architecture optimized for 175 MHz bandwidth. However, driving capacitive loads >10 pF requires a series resistor (≥20 Ω) between the output pin and load to maintain phase margin and prevent oscillation - as specified in the "Driving a Capacitive Load" section of the datasheet.
How is the thermal pad on the THS4082CDGN package connected?
The THS4082CDGN's PowerPAD™ thermal pad is electrically isolated from all pins and must be soldered to a dedicated PCB copper area with ≥5 thermal vias (13 mil diameter) connecting to an internal ground plane. The pad must not be left floating or tied to any signal net; proper thermal via pattern and full-circumference plating ensure 2.14 W power dissipation capability at 25°C ambient.
Can the THS4082CDGN drive a 75 Ω coaxial cable directly?
Yes, the THS4082CDGN can drive a 75 Ω coaxial cable directly when configured with a 20 Ω series resistor at the output pin (source termination), leveraging its 85 mA per channel output drive capability. This configuration matches the characteristic impedance, suppresses reflections, and maintains signal integrity for video or broadband analog signals up to 175 MHz.
What is the channel-to-channel crosstalk specification for the THS4082CDGN?
The THS4082CDGN specifies −75 dB channel-to-channel crosstalk at 1 MHz under ±5 V or ±15 V supply conditions. This level of isolation ensures minimal interference between the two independent amplifier channels, making it suitable for I/Q signal processing, dual-sensor conditioning, and other applications requiring high channel independence.
THS4082CDGN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 230V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 175 MHz
- Current - Input Bias:
- 1.2 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 3.4mA (x2 Channels)
- Current - Output / Channel:
- 85 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP-PowerPad
THS4082CDGN FAQ
1.How can I place an order for THS4082CDGN through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4082CDGN 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 THS4082CDGN reliable?
The price and inventory of THS4082CDGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4082CDGN is usually 5 days.
3.What payment methods are accepted for THS4082CDGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4082CDGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4082CDGN?
THS4082CDGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4082CDGN 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 THS4082CDGN?
For technical support, including THS4082CDGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4082CDGN requirements.
6.How does Aetrix verify that THS4082CDGN is sourced from the original manufacturer or authorized distributors?
All THS4082CDGN 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 THS4082CDGN meets industry standards.
7.What is the process for return or replacement of THS4082CDGN?
All THS4082CDGN units undergo pre-shipment inspection (PSI). If there is an issue with THS4082CDGN, 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 THS4082CDGN part is unused and in its original packaging.
Return procedure for THS4082CDGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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