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Texas Instruments THS3110CDGN
- Part No.:
- THS3110CDGN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS3110CDGN.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,480
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Product details
Overview
THS3110CDGN from Texas Instruments is a low-noise, high-voltage current-feedback operational amplifier with 90 MHz small-signal bandwidth (G = 2, RL = 100 Ω), 1300 V/μs slew rate, ±15 V supply capability, 260 mA output drive, and integrated power-down pin. It serves as a video distribution amplifier in broadcast-grade analog video systems requiring minimal differential gain/phase error across multiple 75-Ω loads.
For engineers reviewing the THS3110CDGN datasheet, THS3110CDGN pinout, THS3110CDGN application, or THS3110CDGN equivalent, this page delivers verified electrical specs, MSOP-8 PowerPAD™ package details, video-specific AC performance data (e.g., 0.013% PAL differential gain), and validated alternatives for high-current, wide-bandwidth op-amp selection.
Technical Context
The THS3110CDGN uses a current-feedback architecture enabling high slew rate and wide bandwidth independent of closed-loop gain-critical for fast video transient response. Its transimpedance gain stage provides stable operation into capacitive loads up to 100 pF when paired with recommended RISO compensation.
Power-down functionality is implemented via a dedicated PD pin referenced to an internal REF node (range: VS− to VS+ − 4 V); asserting PD ≥ REF + 2 V reduces quiescent current from 4.8 mA to 270 μA while maintaining defined output impedance and settling behavior during wake-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW | 90 MHz at G = 2, RL = 100 Ω - supports full NTSC/PAL baseband video bandwidth without attenuation |
| Slew rate | 1300 V/μs at G = 2, VO = 8 VPP, RL = 100 Ω - enables clean 4-V step reproduction at >10 MHz |
| Differential gain | 0.013% (PAL), 0.011% (NTSC) - meets broadcast video fidelity requirements for multi-load distribution |
| Output current | ±260 mA (RL = 25 Ω) - drives eight 75-Ω video lines simultaneously with <0.3% gain error |
| Input voltage noise | 3 nV/√Hz - preserves SNR in low-level analog signal paths such as camera front-end amplification |
| Power-down IQ | 270 μA max - reduces system standby power by >94% versus active mode (4.8 mA) |
| Supply range | ±5 V to ±15 V - compatible with legacy ±12 V and modern ±15 V video infrastructure rails |
Pinout & Package
THS3110CDGN is housed in an 8-pin MSOP PowerPAD™ package (DGN), with thermally enhanced exposed pad electrically isolated from all pins and intended for PCB thermal plane connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (REF) | Power-down reference | Internal bias node defining PD enable threshold; must be externally tied to VS− or decoupled |
| 2 (VIN−) | Inverting input | Current-input node of CFB topology; requires matched impedance to VIN+ for optimal CMRR |
| 3 (VIN+) | Noninverting input | High-impedance voltage node (41 MΩ); sets DC operating point and feedback polarity |
| 4 (VS−) | Negative supply | Return path for internal bias currents; connects to ground plane or negative rail |
| 5 (VS+) | Positive supply | Primary power rail; bypassing with ≥1 μF ceramic near pin essential for stability |
| 6 (VOUT) | Amplifier output | Capable of ±13.4 V swing into 100 Ω; designed for direct 75-Ω transmission line termination |
| 7 (PD) | Power-down control | CMOS-compatible input; logic-high (>REF + 2 V) disables amplifier, reducing IQ to 270 μA |
| 8 (NC) | No internal connection | Not bonded; left floating or grounded per layout best practices to minimize parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Power-down pin (PD) | Reduces quiescent current from 4.8 mA to 270 μA with 4 μs turn-on delay-enables dynamic power gating in battery-backed video routers |
| 75-Ω video line drive | Optimized output stage delivers <0.033° differential phase error into eight 150-Ω loads-meets SMPTE 253M broadcast compliance |
| Current-feedback architecture | Delivers flat 0.1-dB bandwidth of 45 MHz at G = 2-ensures uniform gain across 4.2 MHz NTSC luminance band |
| Low 3-nV/√Hz voltage noise | Maintains >65 dB SNR for 1-VPP video signals at 10 MHz-critical for HD-SDI receiver analog front ends |
| Thermally enhanced PowerPAD™ | θJA = 58.4°C/W enables 685 mW continuous dissipation at +85°C ambient-supports sustained 260-mA output in compact layouts |
Applications
| Video Distribution Amplifier | Capacitive Load Driver |
|---|---|
Use Scenario: Distributing composite NTSC/PAL video from a single source to eight monitors in broadcast control rooms. IC Role / Device Role / Timing Role: Current-feedback video buffer with unity-gain-stable output stage and 75-Ω back-termination capability. Use Value: Maintains 0.013% differential gain and 0.033° differential phase across all eight outputs-preserves color fidelity without external equalization. | Use Scenario: Driving long coaxial cables (≥30 m) with 100-pF total capacitance in security camera systems. IC Role / Device Role / Timing Role: High-slew-rate buffer with optimized RISO compensation network (e.g., 54.9 Ω) for unconditional stability. Use Value: Eliminates peaking and ringing in step response-ensures <250 ns 0.01% settling time for fast-moving object capture. |
| Power FET Driver | Pin Driver for ATE |
Use Scenario: Gate-driving enhancement-mode GaN FETs in Class-D audio amplifiers requiring fast, high-current transitions. IC Role / Device Role / Timing Role: High-output-current voltage buffer translating logic-level PWM to ±12 V gate drive with minimal propagation delay. Use Value: Delivers 260 mA peak current with 8 ns rise/fall time-reduces switching losses and EMI in 500-kHz switching stages. | Use Scenario: Stimulus generation for automated test equipment (ATE) pin electronics requiring programmable voltage/current levels. IC Role / Device Role / Timing Role: Precision, high-speed output driver with low offset drift (±10 μV/°C) and fast settling (27 ns to 0.1%). Use Value: Enables sub-100-ns edge accuracy and <12 mV DC accuracy over temperature-meets JEDEC JESD79-4 DDR4 test specifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3111CDGN | No power-down pin; identical AC/DC specs except PD-related parameters | Preferred where always-on operation simplifies control logic and board space is constrained | Select THS3111CDGN if power gating is unnecessary and BOM consolidation is prioritized |
| LMH6723MA/NOPB | Lower slew rate (1000 V/μs), no power-down, wider supply (±6 V to ±12 V), higher input bias current (1.2 μA) | Better suited for lower-power portable video gear with tighter supply constraints | Choose LMH6723MA/NOPB when ±12 V rails dominate and <1300 V/μs slew is sufficient |
Compared with THS3110CDGN, THS3111CDGN removes power management overhead but sacrifices dynamic power control, while LMH6723MA/NOPB trades peak performance for broader supply flexibility and lower quiescent current-making each suitable for distinct thermal, control, and rail architecture requirements.
Availability
THS3110CDGN is available at Aetrix Electronics and suitable for video distribution, capacitive load driving, power FET gate control, and ATE pin electronics requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for THS3110CDGN 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 digital signal technologies with decades of high-performance amplifier design heritage.
The THS3110 product line targets high-fidelity analog signal conditioning in broadcast video, medical imaging, and automated test equipment-emphasizing speed, linearity, and robust output drive under demanding thermal and loading conditions.
FAQ
What is the maximum number of 75-Ω video loads the THS3110CDGN can drive while maintaining broadcast video specifications?
The THS3110CDGN maintains differential gain error ≤0.03% and differential phase error ≤0.04° when driving up to eight 150-Ω loads (equivalent to sixteen 75-Ω lines in parallel configuration), as confirmed by Figure 29 and Figure 30 in the SLOS422E datasheet under ±15 V supply and G = 2 conditions. This meets SMPTE 253M compliance for professional video routing.
Does the THS3110CDGN require external compensation for driving 100-pF capacitive loads?
Yes, the THS3110CDGN requires external series isolation resistance (RISO) for stable operation into 100-pF capacitive loads. Per Figure 8 of the SLOS422E datasheet, a 54.9-Ω resistor placed between the VOUT pin and the capacitive load ensures monotonic step response and prevents peaking-this is mandatory for reliable long-cable video transmission.
How does the power-down feature of the THS3110CDGN affect output impedance and settling behavior?
During power-down (PD ≥ REF + 2 V), the THS3110CDGN's output enters a high-impedance state with typical ZOUT >10 kΩ, and settling time increases to ~100 μs for full recovery. The device retains defined output voltage (near mid-rail) and does not float, preventing bus contention in multi-driver video buses-verified in Figure 33 transient waveforms.
Can the THS3110CDGN operate from a single +12-V supply, and what are the resulting output swing limitations?
Yes, the THS3110CDGN supports single-supply operation from +12 V (VS+ = +12 V, VS− = 0 V), delivering ±3.5 V output swing into 100 Ω per the ±5 V electrical characteristics table. Output headroom is limited by input common-mode range (±2.8 V) and output saturation margins-designers must bias VIN+ at 6 V and use AC-coupled outputs for full-scale video swing.
What thermal management practices are required for the THS3110CDGN in MSOP-8 PowerPAD™ package at maximum load?
The THS3110CDGN's DGN package requires soldering the exposed PowerPAD™ to a minimum 300-mm² copper pour on the PCB's inner layer for thermal conduction. With θJA = 58.4°C/W, continuous 685-mW dissipation at +85°C ambient demands ≥2 oz. copper and thermal vias to ground plane-TI Technical Brief SLMA002 specifies exact layout rules to avoid junction temperature exceedance.
THS3110CDGN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
THS3110CDGN FAQ
1.How can I place an order for THS3110CDGN through Aetrix?
Please submit a Request for Quotation (RFQ) for THS3110CDGN 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 THS3110CDGN reliable?
The price and inventory of THS3110CDGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS3110CDGN is usually 5 days.
3.What payment methods are accepted for THS3110CDGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS3110CDGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS3110CDGN?
THS3110CDGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS3110CDGN 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 THS3110CDGN?
For technical support, including THS3110CDGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS3110CDGN requirements.
6.How does Aetrix verify that THS3110CDGN is sourced from the original manufacturer or authorized distributors?
All THS3110CDGN 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 THS3110CDGN meets industry standards.
7.What is the process for return or replacement of THS3110CDGN?
All THS3110CDGN units undergo pre-shipment inspection (PSI). If there is an issue with THS3110CDGN, 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 THS3110CDGN part is unused and in its original packaging.
Return procedure for THS3110CDGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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