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Texas Instruments THS4041IDR
- Part No.:
- THS4041IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4041IDR.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,678
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Product details
Overview
THS4041IDR 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 bandwidth (−3 dB, CL = 0 pF), 400 V/µs slew rate, ±100 mA output drive, and −75 dBc THD at 1 MHz into 150 Ω - enabling precision video line driving and ADC buffering in industrial imaging and test equipment.
For engineers reviewing the THS4041IDR datasheet, THS4041IDR pinout, THS4041IDR application, or THS4041IDR equivalent, this page provides verified specifications, SOIC-8 package layout, video-grade distortion performance, capacitive-load stability behavior, and validated alternatives for signal-chain design validation and BOM optimization.
Technical Context
The THS4041IDR employs a dielectrically isolated complementary bipolar process with GHz fT transistors, enabling wide bandwidth and fast settling without external compensation. Its internal C-stable architecture dynamically adjusts dominant-pole compensation based on sensed capacitive load, preserving stability up to 1000 pF without external components.
It operates in both inverting and noninverting configurations at all gains, supports dual-supply (±4.5 V to ±16.5 V) or single-supply (9 V to 33 V) rails, and features dedicated NULL pins (1 and 8) for input offset adjustment - a capability absent in the dual THS4042 variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW | 165 MHz (−3 dB, CL = 0 pF): enables full HD video baseband amplification without roll-off |
| Slew rate | 400 V/µs (VCC = ±15 V): supports clean 20-Vpp transient response within 120 ns to 0.1% |
| THD | −75 dBc (f = 1 MHz, RL = 150 Ω): meets broadcast video differential gain/phase specs (0.01%/0.01°) |
| Output drive | ±100 mA (typ, RL = 20 Ω): drives coaxial cables, multiple 150-Ω video loads, or low-Z ADC inputs |
| Supply range | ±4.5 V to ±16.5 V (dual); 9 V to 33 V (single): interoperable with legacy ±12 V and modern 5 V/12 V systems |
| Input offset drift | 10 µV/°C (max): ensures stable DC-coupled gain accuracy across industrial temperature range (−40°C to 85°C) |
| Capacitive load tolerance | Stable with 0–1000 pF: eliminates need for isolation resistors in most video and data-acquisition layouts |
Pinout & Package
THS4041IDR is housed in an 8-pin SOIC (D) package with exposed thermal pad (PowerPAD™). The package supports standard reflow profiles and provides enhanced thermal dissipation (θJA = 167°C/W on JEDEC Low-K board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NULL | Offset null input: connect wiper of 10-kΩ potentiometer to VCC− for fine-tuning input offset voltage |
| 2 | IN− | Inverting input: high-impedance node (1 MΩ) with 1.5 pF capacitance; requires matched trace routing in high-frequency layouts |
| 3 | IN+ | Noninverting input: symmetrical to IN−; common-mode range extends to ±14.3 V (VCC = ±15 V) |
| 4 | VCC− | Negative supply rail: must be decoupled with ≥0.1 µF ceramic capacitor placed <2 mm from pin |
| 5 | NULL | Offset null return: tied to VCC− when using external nulling circuit; no internal connection if unused |
| 6 | OUT | Amplifier output: capable of ±13.6 V swing into 1 kΩ; drives 150-Ω video lines directly with <0.01% differential gain error |
| 7 | VCC+ | Positive supply rail: decoupling identical to VCC−; PSRR >75 dB ensures immunity to supply ripple |
| 8 | NC | No internal connection: left floating; not bonded or connected internally (confirmed per datasheet) |
Key Features
| Feature | Design Value |
|---|---|
| C-stable architecture | Internally senses capacitive load and adds adaptive compensation - maintains phase margin >45° up to 1000 pF without external components |
| Video-optimized linearity | 0.01% differential gain / 0.01° differential phase error (NTSC, ±15 V) enables direct replacement of legacy video op-amps in broadcast gear |
| High-output-current buffer | Delivers ±100 mA into 20 Ω while maintaining 165 MHz bandwidth - suitable for driving multiple parallel 75-Ω transmission lines |
| Offset null capability | Pins 1 and 8 support external 10-kΩ potentiometer for sub-mV offset correction - critical for DC-coupled medical imaging front-ends |
| Wide supply flexibility | Operates from ±4.5 V to ±16.5 V dual or 9–33 V single supply - simplifies integration into mixed-rail test instrumentation |
Applications
| Medical Ultrasound Front-End | HD Video Distribution Amplifier |
|---|---|
|
Use Scenario: Amplifying weak analog echo signals from piezoelectric transducers before digitization in portable ultrasound systems. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate gain stage with DC coupling and precise offset control to preserve dynamic range and time-of-flight accuracy. Use Value: 14 nV/√Hz input voltage noise and 10 µV/°C offset drift ensure SNR >70 dB across −20°C to 60°C operating range without recalibration. |
Use Scenario: Splitting and boosting composite or component video signals to drive multiple monitors or recording devices in broadcast studios. IC Role / Device Role / Timing Role: Unity-gain buffer with 150-Ω output termination and minimal group delay variation across 0–10 MHz. Use Value: 0.01% differential gain error preserves color fidelity; 165 MHz bandwidth supports 1080p60 RGB signals without edge softening. |
| Automated Test Equipment (ATE) Driver | High-Speed Data Acquisition Buffer |
|
Use Scenario: Driving precision voltage waveforms into variable capacitive loads (e.g., PCB fixtures, relay matrices) during functional testing. IC Role / Device Role / Timing Role: Stable, high-output-current driver that maintains waveform fidelity regardless of fixture parasitic capacitance (up to 1 nF). Use Value: C-stable operation eliminates need for per-fixture compensation networks - reducing test head complexity and calibration overhead. |
Use Scenario: Isolating and conditioning analog sensor outputs (e.g., strain gauges, accelerometers) prior to SAR or sigma-delta ADC sampling. IC Role / Device Role / Timing Role: Low-distortion, fast-settling buffer ensuring <0.01% settling error within 250 ns for 16-bit+ conversion accuracy. Use Value: −89 dBc THD into 1 kΩ and 250 ns 0.01% settling time prevent harmonic aliasing and code uncertainty in high-resolution DAQ systems. |
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, 100 V/µs slew rate, lower power (7.5 mA vs. 9.5 mA), no NULL pins | Better suited for low-noise, moderate-speed applications where offset trimming is unnecessary | Select when power budget is constrained and video-grade distortion is not required |
| THS4081IDR | 175 MHz bandwidth, 220 V/µs slew rate, 3.3 mA supply current, unity-gain unstable (min gain = 5) | Requires gain ≥5 for stability; unsuitable for unity-gain video buffers or capacitive-load scenarios | Choose only for fixed-gain, low-power, high-bandwidth stages where layout allows strict gain control |
Compared with THS4041IDR, THS4031CDR trades bandwidth and drive strength for lower noise and power, while THS4081IDR offers higher bandwidth but sacrifices capacitive-load stability and unity-gain operation - making THS4041IDR uniquely balanced for video, ATE, and mixed-signal buffering where load variability and DC precision matter.
Availability
THS4041IDR is available at Aetrix Electronics and suitable for industrial imaging systems, broadcast video infrastructure, automated test equipment, and high-resolution data acquisition requiring stable component supply across extended temperature ranges.
Supply support for THS4041IDR 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 THS4041IDR belongs to TI's C-Stable high-speed op-amp family, engineered specifically for applications demanding unconditional stability into reactive loads - such as video distribution, medical imaging, and test instrumentation where layout-induced capacitance cannot be precisely controlled.
FAQ
What is the operating temperature range for THS4041IDR?
The THS4041IDR is rated for industrial operation from −40°C to +85°C (I-suffix grade). This is confirmed in the "Available Options" table and "Recommended Operating Conditions" section of the SLOS237B datasheet. All electrical characteristics - including bandwidth, THD, and output drive - are guaranteed across this full range, making THS4041IDR suitable for harsh-environment deployments like factory-floor ATE or outdoor broadcast enclosures.
Does THS4041IDR require external compensation for capacitive loads?
No, THS4041IDR does not require external compensation for capacitive loads. Its patented C-stable architecture automatically adjusts internal compensation based on sensed output capacitance, maintaining stability from 0 pF to 1000 pF. Datasheet Figure 24 and the "Driving a Capacitive Load" application note confirm ≤10% overshoot even with 1000 pF, eliminating the need for series isolation resistors in most video and data-acquisition designs.
Can THS4041IDR be used in single-supply configurations?
Yes, THS4041IDR supports single-supply operation from 9 V to 33 V. The common-mode input voltage range extends to within 1.2 V of each rail (e.g., 3.8 V to 11.2 V with 15 V supply), and output swing reaches ±3.5 V into 1 kΩ. This enables use in 12 V or 24 V industrial systems without level-shifting circuitry - verified in the "Recommended Operating Conditions" and "Output Voltage Swing" tables of the datasheet.
What is the purpose of Pins 1 and 8 on THS4041IDR?
Pins 1 and 8 are NULL terminals for input offset voltage adjustment. As shown in Figure 66 of the datasheet, a 10-kΩ potentiometer is connected between these pins, with its wiper tied to VCC−. This allows manual trimming of input offset to <0.5 mV - a feature unique to the THS4041 (not present in THS4042) and essential for DC-coupled precision applications like medical sensor interfaces or calibrated test sources.
How does THS4041IDR compare to THS4042IDR in terms of pin compatibility?
THS4041IDR (SOIC-8) and THS4042IDR (SOIC-8) share identical footprints and supply pinouts (Pins 4/VCC−, 7/VCC+), but differ functionally: THS4041 has NULL pins (1, 8) and one amplifier; THS4042 integrates two amplifiers with different pin mapping (e.g., Pin 1 = 1OUT, Pin 2 = 1IN−). They are not pin-compatible replacements - substituting one for the other requires PCB redesign and schematic revision.
THS4041IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4041IDR FAQ
1.How can I place an order for THS4041IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4041IDR 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 THS4041IDR reliable?
The price and inventory of THS4041IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4041IDR is usually 5 days.
3.What payment methods are accepted for THS4041IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4041IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4041IDR?
THS4041IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4041IDR 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 THS4041IDR?
For technical support, including THS4041IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4041IDR requirements.
6.How does Aetrix verify that THS4041IDR is sourced from the original manufacturer or authorized distributors?
All THS4041IDR 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 THS4041IDR meets industry standards.
7.What is the process for return or replacement of THS4041IDR?
All THS4041IDR units undergo pre-shipment inspection (PSI). If there is an issue with THS4041IDR, 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 THS4041IDR part is unused and in its original packaging.
Return procedure for THS4041IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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