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Texas Instruments THS4041CD
- Part No.:
- THS4041CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4041CD.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:188
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Product details
Overview
THS4041CD from Texas Instruments is a single-channel, voltage-feedback operational amplifier optimized for high-speed, unity-gain-stable operation with any capacitive load. It delivers 165 MHz small-signal bandwidth (±15 V, CL = 0 pF), 400 V/µs slew rate, ±13.6 V output swing into 1 kΩ, and drives up to 100 mA - making it suitable for video line driving, ADC buffering, and high-fidelity signal conditioning in test equipment.
For engineers reviewing the THS4041CD datasheet, THS4041CD pinout, THS4041CD application, or THS4041CD equivalent, this page provides verified specifications, SOIC-8 package details, real-world video and data-acquisition use cases, and two validated alternative amplifiers with documented functional trade-offs.
Technical Context
The THS4041CD uses a dielectrically isolated complementary bipolar process enabling GHz fT transistors, supporting wide bandwidth and low distortion. Its internal C-stable compensation dynamically adjusts phase margin based on capacitive load, eliminating external compensation in most configurations.
It operates from dual supplies of ±4.5 V to ±16.5 V (or single 9–33 V), features rail-to-rail input common-mode range (±14.3 V at ±15 V), and maintains stability in both inverting and noninverting gain ≥1 configurations without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW | 165 MHz (−3 dB, ±15 V, CL = 0 pF): enables full HD video signal passband without attenuation |
| Slew rate | 400 V/µs (±15 V, 20-V step): supports fast transient response in pulse-amplification circuits |
| Output drive | 100 mA (typ, ±15 V, 20 Ω load): directly drives coaxial cables or multiple parallel inputs |
| THD | −75 dBc (1 MHz, RL = 150 Ω): preserves signal fidelity in broadcast-quality video paths |
| Differential gain/phase | 0.01% / 0.01° (NTSC, ±15 V): meets SMPTE 253M video standard for analog component video |
| Supply range | ±4.5 V to ±16.5 V: compatible with legacy ±5 V, ±12 V, and ±15 V industrial power rails |
| Input offset voltage | 10 mV (max, full temp range): ensures DC accuracy in precision gain stages without trimming |
Pinout & Package
THS4041CD is housed in an 8-pin SOIC (D) package with exposed thermal pad (PowerPAD™). The package supports tape-and-reel delivery (suffix R) and provides enhanced thermal performance over standard SOIC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NULL | Offset null connection point; used with external potentiometer for fine DC offset adjustment |
| 2 | IN− | Inverting input; high-impedance node for feedback network attachment |
| 3 | IN+ | Noninverting input; accepts high-frequency signals with ±14.3 V common-mode range at ±15 V supply |
| 4 | VCC− | Negative supply rail; must be decoupled locally to minimize ground bounce in high-speed operation |
| 5 | NULL | No internal connection; electrically isolated, may be left floating or grounded per layout best practice |
| 6 | OUT | Amplified output; capable of ±13.6 V swing into 1 kΩ and stable into 1000 pF loads |
| 7 | VCC+ | Positive supply rail; requires low-ESR ceramic decoupling (0.1 µF) adjacent to pin |
| 8 | NULL | Offset null connection point; tied to VCC− via potentiometer wiper for calibration |
Key Features
| Feature | Design Value |
|---|---|
| C-stable architecture | Internally compensates for capacitive loads up to 1000 pF without external components |
| Video-optimized linearity | 0.01% differential gain error ensures minimal color distortion in NTSC/PAL composite video |
| High output current | 100 mA continuous drive enables direct termination of 75 Ω video lines or multi-load fanout |
| Wide supply flexibility | Operates from ±4.5 V to ±16.5 V, supporting both modern low-voltage and legacy industrial rails |
| Low distortion at 1 MHz | −75 dBc THD into 150 Ω allows clean amplification of IF and baseband signals in comms systems |
Applications
| Video Line Driver | ADC Input Buffer |
|---|---|
|
Use Scenario: Driving 75 Ω coaxial cable from FPGA DAC output to analog monitor input in broadcast-grade video equipment. IC Role / Device Role / Timing Role: High-fidelity voltage buffer with unity-gain stability, preserving rise time and minimizing group delay variation. Use Value: 0.01° differential phase error prevents hue shift; 165 MHz bandwidth passes full 1080p/60 RGB signal spectrum. |
Use Scenario: Isolating and scaling sensor output before sampling by a 12-bit, 10 MSPS ADC in automated test equipment. IC Role / Device Role / Timing Role: Low-noise, fast-settling driver ensuring <120 ns settling to 0.1% for accurate sample acquisition. Use Value: 400 V/µs slew rate eliminates slewing-induced aperture error; −75 dBc THD avoids harmonic folding into Nyquist band. |
| High-Speed Pulse Amplifier | Multi-Channel Signal Distribution |
|
Use Scenario: Amplifying TTL/PECL logic pulses in laser diode driver control loops requiring sub-200 ns edge fidelity. IC Role / Device Role / Timing Role: Fast transient amplifier with minimal overshoot (<5%) into 50 Ω loads across temperature. Use Value: 120 ns settling to 0.1% and 250 ns to 0.01% enable reliable timing margins in closed-loop feedback paths. |
Use Scenario: Splitting one high-frequency reference clock to three downstream PLLs in telecom synchronization gear. IC Role / Device Role / Timing Role: Low-output-impedance distribution amplifier maintaining signal integrity across mismatched traces. Use Value: 13 Ω closed-loop output impedance (1 MHz) minimizes reflections; 100 mA drive sustains amplitude across 3× 150 Ω loads. |
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 |
|---|---|---|---|
| THS4031CD | 100 MHz bandwidth, lower noise (4.5 nV/√Hz), but only 150 V/µs slew rate and not C-stable | Preferred for low-noise preamp stages where capacitive loading is controlled; unsuitable for direct video cable drive | Select THS4031CD when SNR > speed; choose THS4041CD when load stability and slew rate dominate |
| THS4081CD | 175 MHz bandwidth, 350 V/µs slew rate, 3.6 mA supply current (vs. 9.5 mA), but reduced output drive (60 mA) | Better for battery-powered portable instruments needing speed + efficiency; insufficient for 75 Ω video termination | Choose THS4081CD for portable, low-power designs; retain THS4041CD for high-current, high-fidelity fixed installations |
Compared with THS4031CD and THS4081CD, the THS4041CD uniquely balances high slew rate, full capacitive-load stability, and robust output drive - making it the only option among the three qualified for unbuffered 75 Ω video line driving across temperature.
Availability
THS4041CD is available at Aetrix Electronics and suitable for video signal conditioning, high-speed data acquisition, and precision pulse amplification requiring stable component supply across industrial temperature ranges (0°C to 70°C).
Supply support for THS4041CD 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 THS404x family was engineered specifically for demanding video, instrumentation, and communications applications requiring unity-gain stability, wide bandwidth, and high output current - addressing limitations of earlier high-speed op-amps in real-world capacitive-load scenarios.
FAQ
What is the maximum capacitive load the THS4041CD can drive while remaining stable?
The THS4041CD remains unity-gain stable with capacitive loads up to 1000 pF without external compensation, as confirmed by datasheet Figure 24 and the "C-Stable" architecture description. At 1000 pF, output overshoot stays below 15% for 1 V and 5 V steps under ±15 V supply. For loads >1000 pF, a series isolation resistor (≥20 Ω) is recommended to maintain phase margin.
Does the THS4041CD support single-supply operation?
Yes, the THS4041CD supports single-supply operation from 9 V to 33 V, as specified in the Recommended Operating Conditions table. With proper input biasing and output swing considerations (e.g., using VCC/2 reference), it functions reliably in single-ended systems such as portable data loggers and sensor interfaces - though its full dynamic range is realized under dual-supply conditions.
What is the purpose of the NULL pins (1, 5, and 8) on the THS4041CD?
Pins 1 and 8 are dedicated offset null terminals, allowing external adjustment of input offset voltage using a 10 kΩ potentiometer (per Figure 66). Pin 5 is a no-connect terminal - internally unconnected and safe to leave floating or tie to ground for mechanical stability. These NULL pins do not affect normal operation unless active offset trimming is required.
How does the THS4041CD compare to the THS4042CD in terms of pin compatibility and design reuse?
The THS4041CD (single-channel) and THS4042CD (dual-channel) share identical pinouts for their respective channel counts: THS4041CD uses SOIC-8 with one amplifier core, while THS4042CD places two independent amplifiers in the same SOIC-8 footprint with duplicated IN+/IN−/OUT/VCC pins. They are not pin-compatible replacements, but PCB layouts for THS4041CD can be reused for one channel of THS4042CD with minor trace routing adjustments.
Is the THS4041CD suitable for driving 75 Ω video lines in NTSC applications?
Yes - the THS4041CD is explicitly characterized for video: it achieves 0.01% differential gain error and 0.01° differential phase error under NTSC conditions at ±15 V supply, meeting SMPTE 253M requirements. Its 100 mA output drive supports direct 75 Ω termination, and C-stable operation eliminates need for external peaking compensation in standard video line drivers.
THS4041CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 400V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 165 MHz
- Current - Input Bias:
- 2.5 µA
- Voltage - Input Offset:
- 2.5 mV
- Current - Supply:
- 8mA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4041CD FAQ
1.How can I place an order for THS4041CD through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4041CD 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 THS4041CD reliable?
The price and inventory of THS4041CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4041CD is usually 5 days.
3.What payment methods are accepted for THS4041CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4041CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4041CD?
THS4041CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4041CD 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 THS4041CD?
For technical support, including THS4041CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4041CD requirements.
6.How does Aetrix verify that THS4041CD is sourced from the original manufacturer or authorized distributors?
All THS4041CD 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 THS4041CD meets industry standards.
7.What is the process for return or replacement of THS4041CD?
All THS4041CD units undergo pre-shipment inspection (PSI). If there is an issue with THS4041CD, 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 THS4041CD part is unused and in its original packaging.
Return procedure for THS4041CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
THS4041CD Tags
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