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Texas Instruments THS4061CDR
- Part No.:
- THS4061CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4061CDR.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,872
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Product details
Overview
THS4061CDR from Texas Instruments is a single-channel, voltage-feedback operational amplifier optimized for high-speed video, imaging, and communication signal conditioning. It delivers 180 MHz small-signal bandwidth (G = 1), 400 V/µs slew rate, 40 ns settling time to 0.1%, ±11.5 V output swing into 250 Ω at ±15 V supply, and 0.02% differential gain error - enabling precision analog front-end design in broadcast-quality SD/HD video line drivers.
For engineers reviewing the THS4061CDR datasheet, THS4061CDR pinout, THS4061CDR application, or THS4061CDR equivalent, this page provides verified circuit role, SOIC-8 package mapping, video-grade AC performance metrics, thermal derating data, and validated alternatives for professional video, test equipment, and high-fidelity analog signal path design.
Technical Context
The THS4061CDR employs a dielectrically isolated complementary bipolar process with GHz fT transistors, enabling wideband voltage-feedback architecture stable at all gains in both inverting and noninverting configurations. Its internal compensation targets unity-gain stability while preserving bandwidth and slew rate.
It features dual null pins (1 and 8) for external offset trimming, supports dual-supply (±4.5 V to ±16.5 V) or single-supply (9 V to 33 V) operation, and requires careful PCB layout - including local 0.1 µF ceramic + 6.8 µF tantalum decoupling per supply rail and avoidance of sockets - to maintain 180 MHz bandwidth and low distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (−3 dB) | 180 MHz at G = 1, ±15 V - enables baseband video and fast pulse amplification without roll-off |
| Slew rate | 400 V/µs at ±15 V - supports clean 5-V step response in ≤40 ns with minimal overshoot |
| Differential gain error | 0.02% at NTSC 40 IRE, G = 2, ±15 V - preserves color fidelity in composite video systems |
| Total harmonic distortion | −72 dBc at f = 1 MHz - ensures low spurious content in RF IF stages and ADC driver applications |
| Output drive current | 115 mA typical into 20 Ω - drives 75 Ω coaxial lines directly or multiple parallel loads |
| Supply range | ±4.5 V to ±16.5 V dual or 9 V to 33 V single - accommodates legacy ±15 V and modern low-voltage rails |
| Quiescent current | 7.8 mA per channel at ±15 V - balances speed and power in multi-amplifier video signal chains |
Pinout & Package
THS4061CDR is housed in an 8-pin SOIC (D) package with standard JEDEC MS-012AC footprint (5.3 mm × 6.2 mm, 1.27 mm pitch). Thermal derating begins above 25°C at 6 mW/°C; maximum power dissipation is 475 mW at 70°C ambient.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Null (Offset Adjust) | Connects to potentiometer wiper for manual input offset correction; referenced to VCC− |
| 2 | Inverting Input (IN−) | High-impedance node for feedback network connection; critical for stability with capacitive loads |
| 3 | Noninverting Input (IN+) | High-impedance signal input; requires shortest possible trace to minimize parasitic capacitance |
| 4 | VCC− | Negative supply rail; must be decoupled locally with 0.1 µF ceramic + 6.8 µF tantalum |
| 5 | NC | No internal connection; left unconnected per TI datasheet |
| 6 | Output (OUT) | Capable of ±11.5 V swing into 250 Ω; series resistor (≥20 Ω) required for >10 pF capacitive loads |
| 7 | VCC+ | Positive supply rail; identical decoupling requirement as VCC− |
| 8 | Null (Offset Adjust) | Paired with Pin 1 for external trim; tied to VCC− via potentiometer wiper |
Key Features
| Feature | Design Value |
|---|---|
| Stable at all gains | Unity-gain stable in both inverting and noninverting configurations - eliminates need for external compensation |
| Video-optimized AC performance | 75 MHz 0.1 dB flatness and 0.02° differential phase - meets SMPTE 253M/293M broadcast linearity requirements |
| High output drive | 115 mA continuous output current - drives 75 Ω back-terminated video lines or multiple downstream ADC inputs |
| Low distortion at 1 MHz | −72 dBc THD - maintains SNR integrity in high-frequency signal acquisition and reconstruction paths |
| Wide supply flexibility | Operates from ±4.5 V to ±16.5 V dual or 9–33 V single - supports industrial, medical, and legacy test equipment rails |
Applications
| Broadcast Video Line Driver | High-Speed Data Acquisition Front-End |
|---|---|
Use Scenario: Driving composite NTSC/PAL video signals over 75 Ω coaxial cable to monitors or recording devices. IC Role / Device Role / Timing Role: Single-ended voltage buffer with gain = 2, providing impedance matching, DC restoration, and amplitude scaling. Use Value: 0.02% differential gain and 0.02° differential phase errors preserve color saturation and hue accuracy across full 4.2 MHz video bandwidth. |
Use Scenario: Conditioning analog sensor outputs before digitization in oscilloscopes or automated test equipment. IC Role / Device Role / Timing Role: High-fidelity gain stage preceding a 100 MSPS+ ADC, operating in noninverting configuration. Use Value: 40 ns settling to 0.1% and −72 dBc THD at 1 MHz ensure accurate capture of fast transients without harmonic corruption. |
| Medical Imaging Signal Chain | Communications Baseband Amplifier |
Use Scenario: Amplifying ultrasound echo signals or MRI gradient coil feedback in portable diagnostic systems. IC Role / Device Role / Timing Role: Low-noise, wideband gain block in analog receive path with ±15 V supplies. Use Value: 14.5 nV/√Hz input voltage noise and 180 MHz bandwidth support high-resolution time-of-flight measurements. |
Use Scenario: Buffering and level-shifting baseband I/Q signals in software-defined radio (SDR) transceivers. IC Role / Device Role / Timing Role: Rail-to-rail capable output driver interfacing FPGA DAC outputs to RF upconverters. Use Value: ±11.5 V output swing into 250 Ω and 400 V/µs slew rate enable clean 10–20 MHz complex envelope transmission. |
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 |
|---|---|---|---|
| THS4031CDR | 100 MHz bandwidth, 150 V/µs slew rate, lower quiescent current (5.3 mA), higher input bias current (10 µA) | Better suited for low-power, medium-bandwidth applications where 180 MHz is unnecessary | Select THS4031CDR when power budget is constrained and video fidelity requirements are relaxed |
| OPA695IDBVR | 1.7 GHz bandwidth, 4300 V/µs slew rate, higher supply current (12.5 mA), requires external compensation | Targeted at RF IF amplification and ultra-high-speed pulse applications beyond video bandwidth | Choose OPA695IDBVR only when >500 MHz small-signal bandwidth or sub-5 ns settling is required |
Compared with THS4031CDR and OPA695IDBVR, the THS4061CDR uniquely balances 180 MHz bandwidth, video-grade linearity (0.02% DG), and unity-gain stability - making it the optimal choice for broadcast-compliant video line drivers and precision high-speed instrumentation where ease of use and signal fidelity are co-prioritized.
Availability
THS4061CDR is available at Aetrix Electronics and suitable for broadcast video infrastructure, high-speed test equipment, and medical imaging systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant SOIC packaging.
Supply support for THS4061CDR 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 decades of expertise in high-performance op-amps and signal chain solutions.
The THS4061CDR belongs to TI's THS406x family of high-speed voltage-feedback amplifiers, designed specifically for professional video, imaging, and communications applications demanding wide bandwidth, low distortion, and robust output drive.
FAQ
What is the maximum operating temperature range for the THS4061CDR?
The THS4061CDR is rated for operation from 0°C to 70°C ambient temperature (C-suffix grade). Its absolute maximum junction temperature is 150°C, and thermal derating begins at 25°C ambient, reducing power dissipation by 6 mW/°C above that point. This makes the THS4061CDR suitable for commercial-grade video equipment and benchtop instrumentation but not extended-temperature industrial or automotive environments.
Does the THS4061CDR require external compensation for unity-gain stability?
No, the THS4061CDR is internally compensated and unity-gain stable in both inverting and noninverting configurations. However, for optimal settling behavior and minimal ringing in noninverting unity-gain applications, TI recommends using a 270 Ω feedback resistor - a design detail confirmed in the THS4061CDR datasheet Figure 27 and application note SLOS234E.
Can the THS4061CDR drive a 75 Ω coaxial cable directly?
Yes, the THS4061CDR can drive a 75 Ω coaxial cable directly when configured as a line driver with gain = 2 and proper source termination. Its 115 mA output current capability and ±11.5 V swing into 250 Ω (derated to ~±3.5 V into 75 Ω) support standard video levels. A series 75 Ω resistor at the output is recommended to isolate capacitive load effects and match characteristic impedance.
What is the purpose of Pins 1 and 8 on the THS4061CDR?
Pins 1 and 8 on the THS4061CDR are dedicated null terminals for external input offset voltage adjustment. A potentiometer is connected between these pins, with its wiper tied to VCC−, allowing fine-tuning of DC offset to <1 mV. This feature is explicitly documented in the THS4061CDR datasheet Section "Offset Nulling" and Figure 26.
Is the THS4061CDR pin-compatible with other members of the THS406x family?
Yes, the THS4061CDR (single-channel) shares identical SOIC-8 pinout with THS4062CDR (dual-channel), except that THS4062CDR uses Pins 1 and 8 for second-channel IN− and IN+, respectively. The THS4061CDR's Pin 1 and Pin 8 are both null terminals, whereas THS4062CDR repurposes them for functional inputs - confirming pin compatibility only within same-channel count variants.
THS4061CDR 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:
- 1
- Output Type:
- -
- Slew Rate:
- 400V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 180 MHz
- Current - Input Bias:
- 3 µA
- Voltage - Input Offset:
- 2.5 mV
- Current - Supply:
- 7.8mA
- Current - Output / Channel:
- 115 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 33 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4061CDR FAQ
1.How can I place an order for THS4061CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4061CDR 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 THS4061CDR reliable?
The price and inventory of THS4061CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4061CDR is usually 5 days.
3.What payment methods are accepted for THS4061CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4061CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4061CDR?
THS4061CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4061CDR 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 THS4061CDR?
For technical support, including THS4061CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4061CDR requirements.
6.How does Aetrix verify that THS4061CDR is sourced from the original manufacturer or authorized distributors?
All THS4061CDR 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 THS4061CDR meets industry standards.
7.What is the process for return or replacement of THS4061CDR?
All THS4061CDR units undergo pre-shipment inspection (PSI). If there is an issue with THS4061CDR, 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 THS4061CDR part is unused and in its original packaging.
Return procedure for THS4061CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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