My Inquiry
My Account
Texas Instruments THS4081IDGNR
- Part No.:
- THS4081IDGNR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4081IDGNR.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,188
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
THS4081IDGNR from Texas Instruments is a single-channel, ultralow-power, high-speed voltage-feedback operational amplifier designed for precision video and communication signal conditioning. It delivers 175 MHz bandwidth (G = 1), 230 V/µs slew rate, 43 ns settling time (0.1%), 85 mA output drive, and −64 dBc THD at 1 MHz into 150 Ω - enabling high-fidelity analog front-end amplification in broadcast-grade video systems.
For engineers reviewing the THS4081IDGNR datasheet, THS4081IDGNR pinout, THS4081IDGNR application, or THS4081IDGNR equivalent, key selection criteria include low quiescent current (3.4 mA/channel), wide supply range (±5 V to ±15 V), MSOP-8 PowerPAD™ thermal performance, and verified video specifications including 0.01% differential gain and 0.05° differential phase.
Technical Context
The THS4081IDGNR employs a dielectrically isolated complementary bipolar process with multi-GHz fT transistors, enabling voltage-feedback architecture optimized for wide bandwidth and fast transient response. Its internal compensation targets maximum small-signal bandwidth and slew rate while requiring external series output resistance (>20 Ω) for stable operation with capacitive loads >10 pF.
It operates across dual supplies (±5 V to ±15 V) or single supply (10 V to 30 V), supports rail-to-rail input common-mode range (±13.8 V at ±15 V), and features 90 dB CMRR and 13 Ω open-loop output impedance - making it suitable for driving 75 Ω transmission lines and high-impedance ADC inputs without gain error degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (−3 dB) | 175 MHz at ±15 V, G = 1 - enables full HD video baseband amplification without attenuation |
| Slew rate | 230 V/µs at ±15 V - supports clean 1080p/60 video edge transitions |
| Settling time (0.1%) | 43 ns at ±15 V, 5-V step - meets tight timing budgets in high-speed data acquisition |
| THD | −64 dBc at f = 1 MHz, RL = 150 Ω - preserves signal fidelity in composite video distribution |
| Quiescent current | 3.4 mA per channel at ±15 V - reduces thermal load in multi-amplifier video routing cards |
| Differential gain/phase | 0.01% / 0.05° at NTSC, ±15 V - satisfies SMPTE RP 168 broadcast linearity requirements |
| Output drive | 85 mA typical into 20 Ω - directly drives coaxial cables and multiple downstream loads |
Pinout & Package
The THS4081IDGNR is housed in an 8-pin MSOP PowerPAD™ (DGN) package with exposed thermal pad on underside - electrically isolated, solderable for enhanced thermal dissipation (θJA = 58.4°C/W). The package supports surface-mount reflow and requires PCB layout with 5×13-mil vias under the thermal pad connected solidly to internal ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pin; must remain unconnected or grounded per layout guidelines |
| 2 (IN−) | Inverting input | High-impedance node; trace length minimized to reduce parasitic capacitance and oscillation risk |
| 3 (IN+) | Non-inverting input | DC-coupled or AC-coupled signal entry point; matched impedance critical for video applications |
| 4 (VCC−) | Negative supply rail | Connect to local ±15 V or ±5 V return with dedicated 0.1 µF ceramic + 6.8 µF tantalum decoupling |
| 5 (NC) | No internal connection | Unused pin; no internal bond wire; leave floating or tie to ground if needed for mechanical stability |
| 6 (OUT) | Amplifier output | Drive 75 Ω lines via series 75 Ω resistor; avoid direct capacitive loading >10 pF |
| 7 (VCC+) | Positive supply rail | Connect to local ±15 V or ±5 V with same decoupling as VCC−; separate traces recommended |
| 8 (NC) | No internal connection | Unused pin; electrically isolated; no internal function |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow quiescent current | 3.4 mA per channel at ±15 V enables thermally constrained multi-channel video boards |
| PowerPAD™ thermal enhancement | 2.14 W power rating at TA = 25°C (θJA = 58.4°C/W) supports continuous 85 mA output in industrial ambient |
| Video-optimized distortion performance | 0.01% DG / 0.05° DP ensures broadcast-compliant color fidelity without post-correction |
| Wide supply flexibility | Operates from ±5 V to ±15 V dual or 10–30 V single supply - simplifies system-level power architecture |
| High output current capability | 85 mA typical into 20 Ω allows direct drive of coaxial cable and parallel-loaded ADC inputs |
Applications
| Professional Video Distribution | Broadcast Camera Signal Chain |
|---|---|
Use Scenario: Amplifying and distributing composite or component video signals across studio routers and monitors. IC Role / Device Role / Timing Role: High-fidelity buffer and driver stage placed after video DAC or before coaxial transmission line. Use Value: Maintains 0.01% differential gain and 0.05° differential phase across NTSC/PAL frequencies, eliminating need for external calibration. | Use Scenario: Conditioning analog RGB or YUV outputs from image sensor processors in ENG/EFP cameras. IC Role / Device Role / Timing Role: Final-stage video amplifier delivering 175 MHz bandwidth to camera head output connectors. Use Value: 230 V/µs slew rate preserves sharpness in 1080p60 video edges; 43 ns settling ensures accurate pixel sampling. |
| Medical Imaging Front-End | Test & Measurement Signal Generation |
Use Scenario: Driving high-resolution analog outputs from ultrasound or MRI digital-to-analog converters. IC Role / Device Role / Timing Role: Precision output buffer isolating sensitive DACs from variable cable and probe impedances. Use Value: 85 mA drive capability supports long coax runs to display units; −64 dBc THD prevents harmonic artifacts in diagnostic waveforms. | Use Scenario: Amplifying arbitrary waveform generator outputs for high-frequency stimulus testing. IC Role / Device Role / Timing Role: Wideband gain block in automated test equipment (ATE) signal paths. Use Value: 175 MHz bandwidth and 230 V/µs slew rate enable faithful reproduction of fast-rise pulses up to 100 MHz. |
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 |
|---|---|---|---|
| THS4031CDGNR | Lower bandwidth (100 MHz), higher noise (12 nV/√Hz), 10 mA IQ | Optimized for low-noise instrumentation, not video flatness | Select when THD and differential phase are less critical than input-referred noise |
| LMH6702MA/NOPB | Higher bandwidth (1.8 GHz), higher IQ (12.5 mA), no PowerPAD™ | Targeted at RF IF amplification, not baseband video | Choose for GHz-range signal chains where thermal management is handled externally |
Compared with THS4081IDGNR, THS4031CDGNR trades bandwidth and video linearity for lower noise, while LMH6702MA/NOPB delivers extreme bandwidth at the cost of quiescent power and thermal efficiency - making THS4081IDGNR the optimal balance for industrial and broadcast video systems requiring low power, high fidelity, and robust thermal performance.
Availability
THS4081IDGNR is available at Aetrix Electronics and suitable for professional video distribution, broadcast camera signal chain, medical imaging front-end, and test & measurement signal generation requiring stable component supply, extended temperature operation (−40°C to +85°C), and long-term production continuity.
Supply support for THS4081IDGNR 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 and embedded processing technologies, with over 50 years of innovation in high-performance amplifiers and signal-chain solutions.
The THS408x product line was engineered specifically for high-fidelity video and communications infrastructure - emphasizing ultralow distortion, wide bandwidth, and thermal resilience in compact surface-mount packages for broadcast, medical, and test equipment.
FAQ
What is the operating temperature range for the THS4081IDGNR?
The THS4081IDGNR is rated for industrial temperature operation from −40°C to +85°C, as indicated by the 'I' suffix in the part number. This range is validated across all electrical specifications in the datasheet, including bandwidth, THD, and output drive, making it suitable for outdoor broadcast enclosures and medical imaging chassis where ambient temperatures exceed commercial limits.
Does the THS4081IDGNR require external compensation for stability?
No, the THS4081IDGNR is internally compensated for unity-gain stability. However, when driving capacitive loads exceeding 10 pF - such as coaxial cables or ADC input capacitance - a minimum 20 Ω series resistor must be placed between the THS4081IDGNR output pin and the load to maintain phase margin and prevent ringing or oscillation.
Can the THS4081IDGNR operate from a single supply?
Yes, the THS4081IDGNR supports 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 swings to within 1.2 V of both rails (at ±5 V), enabling use in 12 V or 24 V systems with appropriate level-shifting or DC biasing of the IN+ pin.
What is the purpose of the NC pins on the THS4081IDGNR?
The THS4081IDGNR has three NC (no internal connection) pins - pins 1, 5, and 8 - which contain no internal bond wires or circuitry. These pins are electrically isolated and may be left floating, tied to ground for mechanical reinforcement, or used for PCB fiducials. They must not be connected to active signals or supply rails.
How does the PowerPAD™ thermal pad on the THS4081IDGNR improve performance?
The exposed thermal pad on the THS4081IDGNR's DGN package provides direct die-to-PCB thermal conduction, achieving θJA = 58.4°C/W and 2.14 W power dissipation at TA = 25°C. When soldered to a 68 × 70 mil copper area with five 13-mil vias connected solidly to an internal ground plane, it maintains junction temperature below 125°C during continuous 85 mA output operation - preventing thermal shutdown and parameter drift.
THS4081IDGNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- 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
- Current - Output / Channel:
- -
- 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-HVSSOP
THS4081IDGNR FAQ
1.How can I place an order for THS4081IDGNR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4081IDGNR 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 THS4081IDGNR reliable?
The price and inventory of THS4081IDGNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4081IDGNR is usually 5 days.
3.What payment methods are accepted for THS4081IDGNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4081IDGNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4081IDGNR?
THS4081IDGNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4081IDGNR 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 THS4081IDGNR?
For technical support, including THS4081IDGNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4081IDGNR requirements.
6.How does Aetrix verify that THS4081IDGNR is sourced from the original manufacturer or authorized distributors?
All THS4081IDGNR 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 THS4081IDGNR meets industry standards.
7.What is the process for return or replacement of THS4081IDGNR?
All THS4081IDGNR units undergo pre-shipment inspection (PSI). If there is an issue with THS4081IDGNR, 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 THS4081IDGNR part is unused and in its original packaging.
Return procedure for THS4081IDGNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
THS4081IDGNR Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
