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Texas Instruments THS4082IDR
- Part No.:
- THS4082IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4082IDR.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,281
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Product details
Overview
THS4082IDR from Texas Instruments is a dual-channel, ultralow-power, high-speed voltage-feedback operational amplifier designed for precision video and communication signal conditioning. It delivers 175 MHz bandwidth (−3 dB, G = 1), 230 V/µs slew rate, and 43 ns settling time (0.1%), operating at only 3.4 mA per channel quiescent current on ±5 V to ±15 V supplies. It is used in broadcast-quality analog video line drivers and high-fidelity data acquisition front-ends.
For engineers reviewing the THS4082IDR datasheet, THS4082IDR pinout, THS4082IDR application, or THS4082IDR equivalent, key selection criteria include its dual-channel low-distortion architecture, PowerPAD™ thermal performance in DGN package, ±40°C to +85°C industrial temperature range, and verified video-grade AC specifications including 0.01% differential gain and 0.05° differential phase.
Technical Context
The THS4082IDR employs a dielectrically isolated complementary bipolar process enabling GHz-class transistor fT, supporting wideband voltage feedback operation with minimal phase shift up to 100 MHz. Its internal compensation targets maximum small-signal bandwidth and slew rate while maintaining stability under defined capacitive load conditions.
It features fully independent dual amplifiers with no shared bias circuitry, delivering −75 dB channel-to-channel crosstalk at 1 MHz and matched AC performance across channels. The device supports both dual-supply (±5 V to ±15 V) and single-supply (10 V to 30 V) configurations, with rail-to-rail output swing limited by load impedance and supply voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (−3 dB) | 175 MHz at ±15 V, G = 1 - enables baseband video and IF signal amplification without roll-off |
| Slew Rate | 230 V/µs at ±15 V - supports fast transient response for composite video sync pulses |
| Settling Time (0.1%) | 43 ns at ±15 V, 5-V step - ensures accurate pixel-level settling in high-resolution analog video systems |
| Total Harmonic Distortion | −64 dBc at 1 MHz, RL = 150 Ω - preserves signal fidelity in broadcast-grade video distribution |
| Supply Current (per channel) | 3.4 mA typical at ±15 V - enables dual-channel high-speed amplification with <7 mA total quiescent draw |
| Differential Gain/Phase | 0.01% / 0.05° at NTSC, ±15 V - meets SMPTE RP 168 and ITU-R BT.470 video accuracy requirements |
| Operating Temperature | −40°C to +85°C - qualified for industrial and broadcast equipment deployed in uncontrolled environments |
Pinout & Package
THS4082IDR is available in the thermally enhanced MSOP-8 PowerPAD™ (DGN) package, featuring an exposed thermal pad on the underside for direct PCB copper connection and improved junction-to-board thermal resistance (θJC = 4.7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | High-current, low-impedance output capable of driving 85 mA into 20 Ω loads |
| 1IN− | Channel 1 inverting input | Differential input node with 1.5 pF capacitance; requires short trace routing to minimize instability |
| 1IN+ | Channel 1 noninverting input | High-impedance input (1 MΩ) with ±3.8 V common-mode range at ±5 V supply |
| VCC− | Negative supply rail | Accepts −4.5 V to −16.5 V; must be decoupled with 0.1 µF ceramic + 6.8 µF tantalum |
| VCC+ | Positive supply rail | Accepts +4.5 V to +16.5 V; shares same decoupling requirement as VCC− |
| 2OUT | Channel 2 output | Electrically isolated from 1OUT; −75 dB crosstalk at 1 MHz ensures independent channel operation |
| 2IN− | Channel 2 inverting input | Matched to 1IN− in AC performance; layout symmetry recommended for video dual-path designs |
| 2IN+ | Channel 2 noninverting input | Identical DC and AC specs to 1IN+; supports parallel or differential configuration |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow quiescent current | 3.4 mA per channel enables dual high-speed amplification within tight power budgets (e.g., portable test equipment) |
| PowerPAD™ thermal package | DGN package reduces θJA to 58.4°C/W - allows >2 W power dissipation at TA = 25°C without external heatsink |
| Video-optimized distortion performance | 0.01% differential gain error meets broadcast video line driver requirements per SMPTE 170M |
| High output drive capability | 85 mA continuous output current supports direct driving of 75 Ω coaxial cables and multiple downstream loads |
| Industrial temperature grade | I-suffix rating (−40°C to +85°C) qualifies THS4082IDR for deployment in outdoor broadcast enclosures and factory automation vision systems |
Applications
| Broadcast Video Line Driver | High-Speed Data Acquisition Front-End |
|---|---|
Use Scenario: Driving composite NTSC/PAL video signals over 100 m of 75 Ω coaxial cable in studio routing switchers. IC Role / Device Role / Timing Role: Dual-channel buffer and level shifter with unity-gain stability and minimal group delay variation. Use Value: 0.01% differential gain and 0.05° differential phase preserve color fidelity; 175 MHz bandwidth accommodates full 4.2 MHz luminance spectrum. | Use Scenario: Conditioning sensor outputs (e.g., piezoelectric accelerometers) before 10-bit, 50 MSPS ADC sampling in vibration monitoring systems. IC Role / Device Role / Timing Role: Low-noise, fast-settling signal conditioner with 43 ns settling time ensuring accurate sample-and-hold capture. Use Value: −64 dBc THD at 1 MHz prevents harmonic aliasing into Nyquist band; 10 nV/√Hz input noise maintains SNR > 60 dB for µV-level signals. |
| Medical Ultrasound Analog Beamformer | Communications Baseband Signal Chain |
Use Scenario: Amplifying and summing echo return signals from 64 transducer elements in portable ultrasound machines. IC Role / Device Role / Timing Role: Dual-channel, low-crosstalk gain stage enabling precise time-aligned channel combining. Use Value: −75 dB channel-to-channel crosstalk prevents signal leakage between adjacent beam paths; 230 V/µs slew rate supports 5 MHz pulsed echo envelopes. | Use Scenario: Reconstructing I/Q baseband waveforms in software-defined radio (SDR) transceivers prior to DAC conversion. IC Role / Device Role / Timing Role: High-fidelity, low-phase-noise reconstruction filter driver with matched dual-channel response. Use Value: Matched AC performance across channels ensures <0.1° I/Q phase imbalance; 35 MHz 0.1 dB flatness preserves modulation accuracy for QAM-64. |
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 |
|---|---|---|---|
| THS4032CDR | 100 MHz bandwidth, 100 V/µs slew rate, higher 12 mA/channel supply current | Lower speed but lower noise (9 nV/√Hz); suited for medium-bandwidth precision instrumentation | Select when bandwidth demand ≤100 MHz and lower input voltage noise is prioritized over power efficiency |
| OPA2691U | 300 MHz bandwidth, 4300 V/µs slew rate, 12.5 mA/channel supply current, SO-8 package only | Higher speed and drive (190 mA), but no PowerPAD™ thermal option and narrower temp range (−40°C to +85°C only for 'U') | Select when >200 MHz bandwidth is required and thermal management via PCB copper is not feasible |
Compared with THS4082IDR, THS4032CDR trades bandwidth and power for lower noise, while OPA2691U delivers higher speed at the cost of quiescent current and thermal flexibility - THS4082IDR uniquely balances 175 MHz performance, 3.4 mA/channel efficiency, and DGN-package thermal robustness for space-constrained industrial video systems.
Availability
THS4082IDR is available at Aetrix Electronics and suitable for broadcast video infrastructure, medical imaging subsystems, and industrial data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for THS4082IDR 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 headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with leadership in high-performance op-amps and precision signal chain solutions.
The THS408x product line was engineered specifically for low-distortion, high-speed analog signal conditioning in professional video, communications, and test equipment - emphasizing bandwidth-efficiency trade-off optimization and thermal reliability in compact packages.
FAQ
What is the maximum supply voltage rating for THS4082IDR?
The absolute maximum supply voltage for THS4082IDR is ±16.5 V across VCC+ and VCC− terminals. Operation beyond this risks permanent damage. The recommended operating range is ±5 V to ±15 V for dual-supply use or 10 V to 30 V for single-supply configurations, as specified in the recommended operating conditions table of the THS4082IDR datasheet.
Does THS4082IDR support single-supply operation?
Yes, THS4082IDR supports true single-supply operation from 10 V to 30 V. Its input common-mode range extends to within 1.2 V of the negative rail and its output can swing to within 1.2 V of either rail under 1 kΩ load, enabling use in ground-referenced signal chains. Designers must ensure proper biasing of the noninverting input and verify headroom margins for the intended gain configuration when using single-supply mode.
What is the purpose of the exposed thermal pad on the THS4082IDR DGN package?
The exposed thermal pad on the THS4082IDR DGN package provides a low-thermal-resistance path from the silicon die to the PCB copper plane. When soldered to a properly designed thermal pad with ≥5 vias connected to an internal ground plane, it achieves θJC = 4.7°C/W - enabling safe dissipation of up to 2.14 W at TA = 25°C. This eliminates need for external heatsinks in most industrial video and instrumentation applications.
How does THS4082IDR achieve 0.01% differential gain in video applications?
THS4082IDR achieves 0.01% differential gain through precision trimming of its internal transistor pairs and optimized biasing networks that minimize gain variation across the 4.2 MHz NTSC luminance band. This performance is measured under standardized 40 IRE NTSC ramp conditions at ±15 V supply and is guaranteed over the full −40°C to +85°C operating range - directly meeting SMPTE RP 168 video line driver specifications.
Is THS4082IDR pin-compatible with other devices in the THS408x family?
Yes, THS4082IDR is pin-compatible with THS4082CDR (commercial grade) and THS4082IDGN (same industrial grade, alternate marking). All share identical MSOP-8 DGN pinout: 1OUT, 1IN−, 1IN+, VCC−, VCC+, 2OUT, 2IN−, 2IN+. However, THS4082IDR is not pin-compatible with THS4081 (single-channel) or THS4032 (different internal compensation and bias network), despite shared package footprint.
THS4082IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4082IDR FAQ
1.How can I place an order for THS4082IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4082IDR 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 THS4082IDR reliable?
The price and inventory of THS4082IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4082IDR is usually 5 days.
3.What payment methods are accepted for THS4082IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4082IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4082IDR?
THS4082IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4082IDR 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 THS4082IDR?
For technical support, including THS4082IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4082IDR requirements.
6.How does Aetrix verify that THS4082IDR is sourced from the original manufacturer or authorized distributors?
All THS4082IDR 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 THS4082IDR meets industry standards.
7.What is the process for return or replacement of THS4082IDR?
All THS4082IDR units undergo pre-shipment inspection (PSI). If there is an issue with THS4082IDR, 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 THS4082IDR part is unused and in its original packaging.
Return procedure for THS4082IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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