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Texas Instruments THS4215DGNR
- Part No.:
- THS4215DGNR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4215DGNR.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,881
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Product details
Overview
THS4215DGNR from Texas Instruments is a low-distortion, high-speed voltage-feedback amplifier with power-down functionality, designed for ±5 V or single 5–15 V operation. It delivers 970 V/µs slew rate, 1 GHz small-signal bandwidth (G = 1), –90 dBc THD at 30 MHz, 130-MHz 0.1-dB flat bandwidth (G = 2), and 170 mA output drive - enabling high-fidelity signal conditioning in ADC preamplifier and video buffer applications.
For engineers reviewing the THS4215DGNR datasheet, THS4215DGNR pinout, THS4215DGNR application, or THS4215DGNR equivalent, key selection criteria include power-down timing (4 µs turn-on, 3 µs turn-off), MSOP-8 PowerPAD™ package thermal performance (θJA = 58.4°C/W), differential gain/phase accuracy (0.007% / 0.003°), and harmonic distortion vs. frequency behavior under 150 Ω and 499 Ω loads.
Technical Context
The THS4215DGNR employs a unity-gain-stable voltage-feedback architecture optimized for wideband AC-coupled and DC-coupled signal paths. Its internal compensation enables stable operation at G ≥ 1 without external feedback adjustments, while the dedicated PD pin provides TTL/CMOS-compatible power-down control referenced to VS+ or VS–.
It supports dual-supply (±2.5 V to ±7.5 V) and single-supply (5 V to 15 V) configurations, with input common-mode range extending to within 1.2 V of rails and output swing limited to ±3.6 V (min) into 150 Ω at +85°C. The PowerPAD™ thermal pad requires PCB connection to a copper plane for junction temperature control below +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth (G = 1) | 1 GHz - supports baseband-to-RF signal amplification up to UHF without gain peaking or instability. |
| Slew rate (G = 1) | 970 V/µs - enables clean 2-V step response in ≤22 ns (0.1%), critical for fast-settling data acquisition front-ends. |
| THD (G = 1, 30 MHz, 1 VPP) | –90 dBc at RL = 499 Ω - ensures minimal spectral contamination in high-resolution ADC driver stages. |
| 0.1-dB flat bandwidth (G = 2) | 130 MHz - maintains amplitude fidelity across HD video (1080p60) and broadband instrumentation bands. |
| Power-down quiescent current | ≤900 µA max at +85°C - reduces system standby power in portable or battery-backed signal chains. |
| Differential gain/phase | 0.007% / 0.003° - meets broadcast-grade NTSC/PAL video linearity requirements with multi-load driving capability. |
| Output drive (sourcing) | ≥190 mA min at +85°C into 10 Ω - sustains full-scale output into heavy capacitive or resistive loads without clipping. |
Pinout & Package
THS4215DGNR uses an 8-pin MSOP package with exposed PowerPAD™ thermal pad (DGN suffix). The PowerPAD must be soldered to a PCB copper pour for thermal management; it is electrically isolated from all pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - REF | Reference voltage input for PD logic | Used to set power-down threshold; tied to VS– for active-low enable or VS+ for active-high enable. |
| 2 - PD | Power-down control input | Drives internal bias shutdown when asserted; defaults to ON if left floating or unconnected. |
| 3 - IN– | Inverting input | High-impedance node (4 MΩ) with 0.2 pF differential capacitance; requires matched trace routing in high-frequency layouts. |
| 4 - IN+ | Non-inverting input | Same impedance/capacitance as IN–; used for unity-gain follower or non-inverting gain configurations. |
| 5 - VS– | Negative supply rail | Accepts –2.5 V to –7.5 V in dual mode or 0 V in single-supply; decoupling capacitor required near pin. |
| 6 - VS+ | Positive supply rail | Accepts +2.5 V to +7.5 V (dual) or +5 V to +15 V (single); low-ESR ceramic decoupling mandatory. |
| 7 - VOUT | Amplified output | Capable of ±3.6 V swing into 150 Ω at +85°C; output impedance <0.3 Ω at 1 MHz enables direct cable driving. |
| 8 - NC | No connection | Internally unused; must remain unconnected per TI design guidelines to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stability | Operates stably at G = 1 without external compensation, eliminating risk of oscillation in precision gain stages. |
| Power-down function | Reduces quiescent current to <1 mA while maintaining high input impedance (>4 GΩ) and high output impedance (>75 kΩ) in sleep mode. |
| Low harmonic distortion | –100 dBc 3rd-order HD at 30 MHz (G = 1, RL = 499 Ω) enables clean RF sampling and IF signal chain amplification. |
| Thermal-enhanced MSOP | PowerPAD™ package achieves θJA = 58.4°C/W - 3× better than standard MSOP - enabling 1.71 W power dissipation at TA ≤ +25°C. |
| Wide supply range | Supports ±5 V (video), +5 V (digital systems), and +12/+15 V (industrial analog) rails without redesigning bias networks. |
Applications
| High Linearity ADC Preamplifier | Differential to Single-Ended Conversion |
|---|---|
Use Scenario: Driving the input of a 14-bit, 100-MSPS pipeline ADC in a communications receiver front-end. IC Role / Device Role / Timing Role: Low-noise, low-distortion buffer that preserves SNR and SFDR by minimizing harmonic generation before digitization. Use Value: –90 dBc THD at 30 MHz and 7 nV/√Hz input voltage noise ensure >78 dB ENOB at Nyquist, meeting LTE/WiMAX dynamic range requirements. | Use Scenario: Converting the differential output of a high-speed DAC (e.g., THS5651A) to single-ended for legacy analog subsystems. IC Role / Device Role / Timing Role: Precision gain-of-two amplifier with matched phase/gain on both inputs to reject common-mode noise. Use Value: 0.003° differential phase error prevents color shift in video reconstruction; 130-MHz 0.1-dB flatness supports >100 MHz DAC update rates. |
| DAC Output Buffer | Active Filtering |
Use Scenario: Isolating and amplifying the output of a high-speed video DAC (e.g., THS7353) in a broadcast monitor interface. IC Role / Device Role / Timing Role: Unity-gain voltage follower with high output current to drive 75-Ω coaxial cables and multiple parallel loads. Use Value: 170 mA sourcing capability and 0.007% differential gain maintain chroma/luma integrity across 8 simultaneous 150-Ω video loads. | Use Scenario: Implementing a 4-pole, 50-MHz low-pass filter in a radar pulse generator signal path. IC Role / Device Role / Timing Role: High-slew-rate op-amp in Sallen-Key or MFB topology to preserve transient fidelity and minimize group delay ripple. Use Value: 970 V/µs slew rate prevents slew-induced distortion on 50-MHz square-wave edges; 1 GHz bandwidth avoids filter pole interaction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed voltage-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4211DGNR | No power-down pin; identical AC/DC specs, same MSOP-8 PowerPAD™ package and pinout except PD/REF pins repurposed as NC. | Used where continuous operation is required and board space does not permit adding external enable logic. | Select THS4211DGNR when power cycling is unnecessary and lowest BOM cost is prioritized. |
| LMH6629MA/NOPB | Higher 3-GHz GBW but lower 150-MHz 0.1-dB flatness (vs. THS4215's 130 MHz); no integrated power-down; SOIC-8 only. | Better suited for ultra-wideband gain blocks (>500 MHz) but less optimal for video or multi-load buffering due to poorer differential linearity. | Choose LMH6629MA/NOPB for RF gain stages requiring >1-GHz closed-loop bandwidth with moderate distortion tolerance. |
Compared with THS4215DGNR, THS4211DGNR eliminates power management overhead but forfeits system-level energy control, while LMH6629MA/NOPB trades video-grade linearity and thermal packaging for raw bandwidth - making THS4215DGNR optimal for mixed-signal systems needing both fidelity and dynamic power scaling.
Availability
THS4215DGNR is available at Aetrix Electronics and suitable for high-speed data acquisition, broadcast video infrastructure, and test equipment requiring stable component supply with guaranteed long-term manufacturability and TI-authorized traceability.
Supply support for THS4215DGNR 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 over 50 years of innovation in high-performance amplifiers and data converters.
The THS4215 belongs to TI's high-speed voltage-feedback amplifier product line, engineered specifically for demanding signal-chain applications requiring wide bandwidth, ultra-low distortion, and robust thermal performance in compact packages.
FAQ
What is the recommended power supply decoupling for THS4215DGNR?
TI specifies 0.1-µF ceramic capacitors placed within 2 mm of both VS+ and VS– pins, plus a 4.7-µF tantalum or ceramic bulk capacitor near the device. The PowerPAD™ thermal pad must be connected to a solid ground or supply plane to ensure θJA = 58.4°C/W and prevent thermal runaway. Failure to implement proper decoupling results in oscillation or degraded harmonic distortion above 10 MHz.
How does the power-down function operate on THS4215DGNR?
The THS4215DGNR enters low-power mode when the PD pin is driven to a voltage ≤ (REF – 1.5 V) with REF = VS+, or ≥ (REF + 1.0 V) with REF = VS–. Turn-on delay is 4 µs to 90% of full quiescent current; turn-off is 3 µs. During power-down, output impedance rises to 75 kΩ and input impedance exceeds 4 GΩ, isolating the signal path without loading upstream stages.
Can THS4215DGNR drive a 75-Ω video load directly?
Yes - THS4215DGNR delivers ±3.6 V minimum output swing into 150 Ω at +85°C, and its 170 mA sourcing capability supports 75-Ω loads with ≤2% gain error. For sustained 75-Ω driving, TI recommends using the MSOP-8 PowerPAD™ variant (DGN) with ≥2 cm² copper pour under the pad and limiting ambient temperature to ≤+70°C to maintain differential gain <0.01%.
What is the maximum safe operating junction temperature for THS4215DGNR?
The absolute maximum junction temperature for THS4215DGNR is +150°C, but TI specifies +125°C as the maximum for continuous operation to ensure long-term reliability and distortion performance. Exceeding +125°C causes measurable THD degradation (>–85 dBc at 30 MHz) and accelerated parametric drift. Thermal design must keep TJ ≤ +125°C using the DGN package's θJA = 58.4°C/W rating.
Is THS4215DGNR pin-compatible with THS4211DGNR?
No - THS4215DGNR and THS4211DGNR share the same MSOP-8 PowerPAD™ footprint and mechanical outline, but pins 1 (REF) and 2 (PD) are functional on THS4215DGNR and designated NC on THS4211DGNR. Swapping them without modifying the PCB layout will cause incorrect power-down behavior or undefined operation; they are not drop-in replacements.
THS4215DGNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 970V/µs
- Gain Bandwidth Product:
- 350 MHz
- -3db Bandwidth:
- 325 MHz
- Current - Input Bias:
- 7 µA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 19mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 15 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
THS4215DGNR FAQ
1.How can I place an order for THS4215DGNR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4215DGNR 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 THS4215DGNR reliable?
The price and inventory of THS4215DGNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4215DGNR is usually 5 days.
3.What payment methods are accepted for THS4215DGNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4215DGNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4215DGNR?
THS4215DGNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4215DGNR 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 THS4215DGNR?
For technical support, including THS4215DGNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4215DGNR requirements.
6.How does Aetrix verify that THS4215DGNR is sourced from the original manufacturer or authorized distributors?
All THS4215DGNR 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 THS4215DGNR meets industry standards.
7.What is the process for return or replacement of THS4215DGNR?
All THS4215DGNR units undergo pre-shipment inspection (PSI). If there is an issue with THS4215DGNR, 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 THS4215DGNR part is unused and in its original packaging.
Return procedure for THS4215DGNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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