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Texas Instruments THS4041IDRG4
- Part No.:
- THS4041IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4041IDRG4.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,738
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Product details
Overview
THS4041IDRG4 from Texas Instruments is a single-channel, voltage-feedback operational amplifier optimized for high-speed, unity-gain-stable operation with full capacitive load drive capability (up to 1000 pF). It delivers 165 MHz small-signal bandwidth (±15 V, CL = 0 pF), 400 V/µs slew rate, and drives ±100 mA into 20 Ω - making it suitable for video line driving, ADC buffering, and high-fidelity signal conditioning in industrial imaging and test equipment.
For engineers reviewing the THS4041IDRG4 datasheet, THS4041IDRG4 pinout, THS4041IDRG4 application, or THS4041IDRG4 equivalent, key selection criteria include its C-stable architecture for direct capacitive load interface, low 0.01% differential gain/0.01° differential phase error in NTSC video, ±4.5 V to ±16.5 V dual-supply flexibility, and SOIC-8 PowerPAD™ thermal performance.
Technical Context
The THS4041IDRG4 employs a dielectrically isolated complementary bipolar process enabling GHz fT transistors, resulting in wide bandwidth, fast settling (120 ns to 0.1%), and low distortion (−75 dBc THD at 1 MHz, RL = 150 Ω). Its internal C-stable compensation dynamically adjusts dominant-pole response based on detected output capacitance, preserving stability without external components.
This architecture supports both inverting and noninverting configurations at all gains while maintaining phase margin >45° across CL = 0–1000 pF. The device features dedicated NULL pins (1 & 8) for offset nulling and operates over −40°C to +85°C, validated for industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (−3 dB) | 165 MHz at ±15 V, CL = 0 pF - enables baseband video and high-speed data acquisition up to ~100 MSPS. |
| Slew rate | 400 V/µs at ±15 V - supports full-scale 20-V step in <60 ns without slewing distortion. |
| THD @ 1 MHz | −75 dBc (RL = 150 Ω), −89 dBc (RL = 1 kΩ) - preserves signal fidelity in precision analog front-ends. |
| Output drive | ±100 mA into 20 Ω (typ) - directly drives coaxial cables, multiple 150-Ω video loads, or low-Z ADC inputs. |
| Supply range | ±4.5 V to ±16.5 V dual supply - accommodates legacy ±5 V, ±12 V, and ±15 V systems without level-shifting. |
| Differential gain/phase | 0.01% / 0.01° (NTSC, ±15 V) - meets broadcast-grade video specification without external peaking networks. |
| Input voltage noise | 14 nV/√Hz at 10 kHz - low-noise performance critical for sensor amplification prior to high-resolution ADCs. |
Pinout & Package
THS4041IDRG4 is housed in an 8-pin SOIC package with exposed thermal pad (PowerPAD™), designated D package per TI documentation. The thermal pad must be soldered to PCB ground plane for optimal thermal performance (θJA = 167°C/W, θJC = 38.3°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NULL | Offset null adjustment terminal; connect potentiometer wiper to VCC− for fine input offset correction. |
| 2 | IN− | Inverting input; high-impedance node (1 MΩ || 1.5 pF) for feedback network connection. |
| 3 | IN+ | Noninverting input; matched to IN− for common-mode rejection (CMRR ≥ 70 dB). |
| 4 | VCC− | Negative supply rail; must be decoupled with 0.1 µF ceramic capacitor near pin. |
| 5 | NULL | Second offset null terminal; connect opposite end of potentiometer to VCC− (see Fig. 66). |
| 6 | OUT | Amplified output; capable of ±100 mA sink/source into 20 Ω with <1% overshoot at CL ≤ 100 pF. |
| 7 | VCC+ | Positive supply rail; requires local 0.1 µF ceramic decoupling for high-frequency stability. |
| 8 | NC | No internal connection; electrically isolated - no routing or grounding required. |
Key Features
| Feature | Design Value |
|---|---|
| C-stable capacitive load drive | Guaranteed stability with CL = 0–1000 pF without external compensation - eliminates need for isolation resistors in most video applications. |
| Unity-gain stable | Operates robustly at G = +1 or G = −1 with full bandwidth and minimal peaking - simplifies design of buffer and inverter stages. |
| High output current | Delivers ±100 mA into 20 Ω load - enables direct driving of 75-Ω transmission lines and multi-load video distribution. |
| Low video distortion | 0.01% differential gain and 0.01° differential phase error (NTSC, ±15 V) - meets SMPTE 253M broadcast compliance thresholds. |
| Industrial temperature range | Specified over −40°C to +85°C (I-suffix) - qualified for use in embedded vision, automated test, and harsh-environment instrumentation. |
| Offset null capability | Pins 1 and 8 support external potentiometer-based VOS trimming - reduces system-level calibration burden in precision DC-coupled paths. |
Applications
| Video Line Driver | ADC Input Buffer |
|---|---|
|
Use Scenario: Driving composite video signals over 75-Ω coaxial cable to multiple monitors or recording devices in broadcast infrastructure. IC Role / Device Role / Timing Role: Unity-gain voltage buffer with low group delay variation and minimal differential phase/gain error. Use Value: Maintains NTSC/PAL signal integrity across 100 m cable runs without external equalization or peaking networks. |
Use Scenario: Conditioning analog sensor outputs (e.g., CCD, photodiode, strain gauge) before sampling by 12–16-bit SAR or sigma-delta ADCs. IC Role / Device Role / Timing Role: High-speed, low-noise gain stage with fast settling to minimize conversion dead time and aperture uncertainty. Use Value: Enables full 165 MHz bandwidth utilization for undersampling applications while maintaining SNR > 70 dB. |
| High-Speed Test Equipment | Industrial Imaging Signal Chain |
|
Use Scenario: Output stage of arbitrary waveform generators or digital pattern generators requiring fast edge fidelity and low harmonic distortion. IC Role / Device Role / Timing Role: Final gain and drive amplifier delivering clean 20-Vpp, sub-100-ns rise-time pulses into 50-Ω loads. Use Value: Achieves <120 ns 0.1% settling on 5-V steps - critical for high-throughput parametric testing and ATE stimulus accuracy. |
Use Scenario: Pixel clock distribution and analog video signal conditioning in machine vision cameras operating in factory automation environments. IC Role / Device Role / Timing Role: Robust buffer isolating FPGA/ASIC video interfaces from variable cable and connector capacitance. Use Value: Eliminates layout-dependent instability when interfacing to long flex cables (CL > 500 pF) without redesigning PCB routing. |
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 | Lower 100 MHz bandwidth, lower input voltage noise (9 nV/√Hz), higher input bias current (10 µA typ). | Better suited for low-noise, moderate-speed applications where power consumption is constrained; not rated for >1000 pF loads. | Select THS4031CD when noise dominates over speed and capacitive load drive is ≤100 pF. |
| THS4081ID | 175 MHz bandwidth, lower quiescent current (5.5 mA vs. 9.5 mA), reduced output drive (±60 mA), same I-temp range. | Optimized for battery-powered portable test gear; lacks C-stable architecture - requires external isolation resistor for CL > 100 pF. | Select THS4081ID only when power efficiency is prioritized and capacitive load is known to be <100 pF. |
Compared with THS4031CD and THS4081ID, THS4041IDRG4 uniquely combines guaranteed stability into 1000 pF, highest output current, and broadcast-grade video linearity - making it the only choice for unbuffered video distribution and high-current, high-capacitance interface applications.
Availability
THS4041IDRG4 is available at Aetrix Electronics and suitable for video line driving, ADC input buffering, and high-speed test equipment requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for THS4041IDRG4 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, embedded processing, and connectivity technologies with over 50 years of amplifier innovation.
The THS4041IDRG4 belongs to TI's C-stable high-speed op-amp product line, engineered specifically for applications demanding unconditional stability into heavy capacitive loads without sacrificing bandwidth or linearity.
FAQ
What is the maximum capacitive load the THS4041IDRG4 can drive while remaining stable?
The THS4041IDRG4 is specified to remain stable with capacitive loads up to 1000 pF without external compensation. This is enabled by its internal C-stable architecture, which senses output capacitance and adjusts compensation dynamically. Stability is verified across the full −40°C to +85°C temperature range and ±4.5 V to ±16.5 V supply range. For loads exceeding 1000 pF, an external series isolation resistor (≥20 Ω) is recommended.
Does the THS4041IDRG4 require external components for offset nulling?
Yes - the THS4041IDRG4 provides dedicated NULL pins (1 and 8) for external offset nulling. A 10-kΩ potentiometer is connected between these pins, with its wiper tied to VCC−, as shown in Figure 66 of the datasheet. This configuration allows adjustment of input offset voltage down to <1 mV. No nulling is required for typical applications, as VOS is specified at 2.5–10 mV (typ/max) at 25°C.
Can the THS4041IDRG4 operate from a single supply?
Yes - the THS4041IDRG4 supports single-supply operation from 9 V to 33 V (VCC = VCC+ − VCC−). When used in single-supply mode, the input common-mode range extends to within 1.2 V of the negative rail and 1.7 V below the positive rail (e.g., VICR = 1.2 V to 13.3 V at VCC = 15 V). Output swing is rail-to-rail limited by load impedance and supply voltage.
What is the thermal performance of the THS4041IDRG4 in SOIC-8 PowerPAD™ package?
The THS4041IDRG4 in the D package (SOIC-8 with PowerPAD™) has a junction-to-ambient thermal resistance (θJA) of 167°C/W under JEDEC Low-K board conditions, and 95°C/W under JEDEC High-K conditions. With the thermal pad soldered to a 3 in × 3 in copper plane, power dissipation is rated at 740 mW at TA = 25°C. Proper thermal land design is essential to maintain TJ < 150°C under continuous 100-mA output loading.
How does the THS4041IDRG4 compare to the dual-channel THS4042 in terms of video performance?
The THS4041IDRG4 and THS4042 share identical electrical specifications including differential gain (0.01%), differential phase (0.01°), bandwidth, slew rate, and distortion performance. The THS4042 adds channel-to-channel crosstalk of −64 dB at 1 MHz but does not improve single-channel video metrics. Therefore, THS4041IDRG4 delivers identical broadcast-grade video fidelity in single-channel applications while offering lower cost and smaller PCB footprint than the dual variant.
THS4041IDRG4 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
THS4041IDRG4 FAQ
1.How can I place an order for THS4041IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4041IDRG4 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 THS4041IDRG4 reliable?
The price and inventory of THS4041IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4041IDRG4 is usually 5 days.
3.What payment methods are accepted for THS4041IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4041IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4041IDRG4?
THS4041IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4041IDRG4 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 THS4041IDRG4?
For technical support, including THS4041IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4041IDRG4 requirements.
6.How does Aetrix verify that THS4041IDRG4 is sourced from the original manufacturer or authorized distributors?
All THS4041IDRG4 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 THS4041IDRG4 meets industry standards.
7.What is the process for return or replacement of THS4041IDRG4?
All THS4041IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with THS4041IDRG4, 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 THS4041IDRG4 part is unused and in its original packaging.
Return procedure for THS4041IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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