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Texas Instruments THS3110IDRG4
- Part No.:
- THS3110IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS3110IDRG4.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,509
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Product details
Overview
THS3110IDRG4 from Texas Instruments is a low-noise, high-voltage current-feedback operational amplifier optimized for video distribution and high-speed analog signal conditioning. It delivers 260 mA output drive, 1300 V/μs slew rate, 90 MHz bandwidth (G = 2), ±15 V supply operation, and features a dedicated power-down pin for standby mode reducing quiescent current to 270 μA - enabling robust 75-Ω video line driving with <0.013% differential gain error (PAL) across up to eight 150-Ω loads.
For engineers reviewing the THS3110IDRG4 datasheet, THS3110IDRG4 pinout, THS3110IDRG4 application, or THS3110IDRG4 equivalent, key selection considerations include its current-feedback architecture for wide bandwidth stability, power-down functionality for system-level power management, differential gain/phase performance in broadcast video systems, and SOIC-8 PowerPAD™ thermal package suitability for high-output-current analog front-ends.
Technical Context
The THS3110IDRG4 employs a current-feedback topology with high-impedance noninverting input (41 MΩ) and low-impedance inverting input, enabling stable gain configurations up to G = 10 without phase compensation. Its transimpedance gain of 1 MΩ supports precise current-to-voltage conversion in high-speed photodiode or DAC output stages.
Internal power-down logic activates when the PD pin voltage exceeds REF + 2 V (REF tied to VS–), disabling the output stage while maintaining bias integrity. The device operates over –40°C to +85°C and supports dual-supply (±5 V to ±15 V) or single-supply (10 V to 30 V) configurations with PSRR >60 dB across both rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (G=2) | 90 MHz at ±15 V - enables full HD video bandwidth (up to ~30 MHz fundamental) with margin for harmonics and filtering. |
| Slew rate | 1300 V/μs into 100 Ω - supports 8-VPP output steps at >10 MHz without slewing distortion. |
| Differential gain (PAL) | 0.013% max at 40 IRE - meets SMPTE RP 168 broadcast video fidelity requirements for multi-load distribution. |
| Output current | ±260 mA - drives ≥8 parallel 75-Ω video lines or capacitive loads up to 100 pF with RISO compensation. |
| Power-down current | 270 μA max - reduces system idle power by >94% vs. 4.8 mA active quiescent current. |
| Input voltage noise | 3 nV/√Hz - preserves SNR in low-level analog signal chains such as camera front-ends or ADC drivers. |
| Supply range | ±5 V to ±15 V - supports industrial, broadcast, and test equipment rails without external regulation. |
Pinout & Package
THS3110IDRG4 is housed in an SOIC-8 (D) package with exposed PowerPAD™ thermal pad (electrically isolated). The package measures 4.90 mm × 3.91 mm × 1.75 mm and requires soldering the PowerPAD to a PCB copper plane for thermal dissipation per TI SLMA002 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Not bonded; must be left floating or grounded per layout best practices. |
| 2 (VIN−) | Inverting input | Low-impedance node for feedback network; sets closed-loop gain with RF resistor. |
| 3 (VIN+) | Noninverting input | High-impedance (41 MΩ) input; connects to signal source or reference for unity-gain buffer. |
| 4 (VS−) | Negative supply rail | Connects to −5 V to −15 V; PSRR >55 dB ensures rejection of negative rail noise. |
| 5 (NC) | No internal connection | Not bonded; no routing required. |
| 6 (VS+) | Positive supply rail | Connects to +5 V to +15 V; PSRR >60 dB maintains AC performance under supply ripple. |
| 7 (VOUT) | Amplifier output | Capable of ±13.4 V swing into 100 Ω; drives 75-Ω coaxial lines directly with minimal termination loss. |
| 8 (PD) | Power-down control | Active-high logic input; pulls to VS− for disable, or ≥REF+2 V for enable (REF = VS−). |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables flat frequency response and stable high-gain operation without external compensation components. |
| Power-down pin (PD) | Reduces quiescent current from 4.8 mA to 270 μA in <4 μs, supporting dynamic power gating in multi-channel video systems. |
| 75-Ω video line optimization | Differential gain/phase errors <0.013%/0.033° ensure broadcast-grade color fidelity across 8 parallel 150-Ω loads. |
| PowerPAD™ thermal package | SOIC-8 with exposed die paddle lowers θJA to 95°C/W, enabling 1.05 W dissipation at +25°C ambient. |
| High output current drive | ±260 mA sourcing/sinking capability eliminates need for external buffer stages in video distribution amplifiers. |
Applications
| Video Distribution Amplifier | Broadcast Camera Signal Chain |
|---|---|
Use Scenario: Distributing composite NTSC/PAL video signals from one source to multiple monitors or recording devices in broadcast studios. IC Role / Device Role / Timing Role: High-current, low-distortion video buffer with gain = 2 and 75-Ω output termination. Use Value: Maintains <0.013% differential gain error across 8 parallel 150-Ω loads, preserving color fidelity without external equalization. | Use Scenario: Driving analog RGB or YUV outputs from image sensors or video processors to long coaxial cables. IC Role / Device Role / Timing Role: Final-stage video driver with fast settling (<27 ns to 0.1%) and low harmonic distortion (–52 dBc @ 10 MHz). Use Value: Enables 1080p60 analog transmission with <0.033° differential phase error, meeting SMPTE 259M timing jitter limits. |
| High-Speed Pin Driver | Capacitive Load Driver |
Use Scenario: Driving high-impedance test points or relay coils in automated test equipment requiring fast edge rates. IC Role / Device Role / Timing Role: High-slew-rate (1300 V/μs), high-output-current buffer for digital waveform shaping. Use Value: Delivers 8-VPP steps in <4 ns rise time into 10-Ω loads, minimizing transition delay in ATE stimulus paths. | Use Scenario: Driving piezoelectric actuators or LCD column drivers with 50–100 pF capacitive loads. IC Role / Device Role / Timing Role: Stable unity-gain buffer with recommended RISO compensation (e.g., 39.2 Ω for 47 pF). Use Value: Prevents peaking/oscillation while maintaining >85 MHz bandwidth into 100 pF, verified in TI Figure 7–8. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3111IDRG4 | No power-down pin; otherwise identical AC/DC specs, pinout, and package. | Preferred where continuous operation is required and power gating is unnecessary. | Select THS3111IDRG4 only if power-down functionality is not needed - avoids unused PD pin routing. |
| OPA695ID | Higher bandwidth (1.7 GHz), lower output current (190 mA), no power-down, different pinout (SOIC-8 but non-compatible). | Better suited for RF IF amplification or ultra-wideband ADC buffering than multi-load video distribution. | Choose OPA695ID only for >500 MHz small-signal gain applications - not a drop-in replacement for THS3110IDRG4 video use cases. |
Compared with THS3111IDRG4, THS3110IDRG4 adds system-level power control without sacrificing video fidelity; versus OPA695ID, it trades raw bandwidth for higher output drive and proven multi-load video linearity - making it uniquely suited for broadcast infrastructure where load count and differential gain matter most.
Availability
THS3110IDRG4 is available at Aetrix Electronics and suitable for video distribution amplifiers, broadcast camera interfaces, high-speed pin drivers, and capacitive load drivers requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for THS3110IDRG4 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 90 years of innovation in high-performance signal chain solutions.
The THS3110 product line was designed specifically for high-fidelity, high-current analog signal distribution in broadcast video, test instrumentation, and industrial imaging systems - emphasizing low distortion, thermal robustness, and multi-load drive capability.
FAQ
What is the operating temperature range for THS3110IDRG4?
The THS3110IDRG4 is rated for industrial operation from –40°C to +85°C ambient temperature. This range is validated across all key parameters including bandwidth, differential gain/phase, and output current drive, ensuring reliability in broadcast equipment and industrial video systems where thermal margins are critical. The SOIC-8 PowerPAD™ package supports this range via enhanced thermal dissipation.
Does THS3110IDRG4 require external compensation for stability?
No, THS3110IDRG4 does not require external compensation for standard gain configurations (G = 1 to G = 10). Its current-feedback architecture provides inherently flat phase response. However, when driving capacitive loads >10 pF, TI recommends adding an isolation resistor (RISO) between output and load - e.g., 39.2 Ω for 47 pF - as shown in Figure 8 of the SLOS422E datasheet to maintain stability.
How does the power-down feature of THS3110IDRG4 function?
The THS3110IDRG4 power-down pin (Pin 8) disables the output stage when driven to ≥REF + 2 V (REF = VS−). In this state, quiescent current drops to 270 μA max, and output impedance rises to high-Z. Turn-on delay is 4 μs to 90% of final value. The PD pin has 3.4 kΩ || 1.7 pF input impedance and draws ≤11 μA bias current.
Can THS3110IDRG4 drive 75-Ω coaxial cables directly?
Yes, THS3110IDRG4 is explicitly characterized for 75-Ω video line driving. With gain = 2 and RF = 1 kΩ, it achieves <0.013% differential gain error (PAL) and <0.033° differential phase error across up to eight parallel 150-Ω loads - matching standard 75-Ω video distribution topologies. Output voltage swing remains ≥±13.4 V into 100 Ω, sufficient for terminated 75-Ω lines.
What is the maximum supply voltage for THS3110IDRG4?
The absolute maximum supply voltage for THS3110IDRG4 is ±16 V (32 V total), but the specified operating range is ±5 V to ±15 V. At ±15 V, it delivers full performance: 90 MHz bandwidth, 1300 V/μs slew rate, and ±260 mA output current. Operation beyond ±15 V risks exceeding safe operating area limits and is not characterized or guaranteed.
THS3110IDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1300V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 100 MHz
- Current - Input Bias:
- 1.5 µA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 4.8mA
- Current - Output / Channel:
- 260 mA
- 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-SOIC
THS3110IDRG4 FAQ
1.How can I place an order for THS3110IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for THS3110IDRG4 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 THS3110IDRG4 reliable?
The price and inventory of THS3110IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS3110IDRG4 is usually 5 days.
3.What payment methods are accepted for THS3110IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS3110IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS3110IDRG4?
THS3110IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS3110IDRG4 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 THS3110IDRG4?
For technical support, including THS3110IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS3110IDRG4 requirements.
6.How does Aetrix verify that THS3110IDRG4 is sourced from the original manufacturer or authorized distributors?
All THS3110IDRG4 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 THS3110IDRG4 meets industry standards.
7.What is the process for return or replacement of THS3110IDRG4?
All THS3110IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with THS3110IDRG4, 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 THS3110IDRG4 part is unused and in its original packaging.
Return procedure for THS3110IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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