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Texas Instruments THS2630DGKR
- Part No.:
- THS2630DGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
THS2630DGKR.pdf
- Description:
- THS2630DGKR
- Quantity:
- Payment:
- Shipping:
Inventory:2,075
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Product details
Overview
THS2630DGKR from Texas Instruments is a fully differential amplifier (FDA) designed for high-fidelity signal conditioning in precision analog front-ends. It delivers 187 MHz small-signal bandwidth, 75 V/µs slew rate, and –108 dBc THD at 250 kHz with ±15 V supplies - enabling high-dynamic-range differential ADC driving, single-ended-to-differential conversion, and medical ultrasound receive chains.
For engineers reviewing the THS2630DGKR datasheet, THS2630DGKR pinout, THS2630DGKR application, or THS2630DGKR equivalent, this page provides verified specifications, validated pin functions, real-world use cases in ultrasound and data acquisition, and two confirmed alternative FDAs with documented performance trade-offs.
Technical Context
The THS2630DGKR implements a true fully differential signal path from input to output using TI's high-voltage complementary bipolar process, supporting supply voltages up to ±17.5 V. Its VOCM-controlled output common-mode voltage enables precise level shifting and seamless interfacing with differential ADCs requiring specific input common-mode bias.
It features an internal VCM error amplifier that maintains output balance, supports both single-ended and differential inputs, and achieves 95 dB CMRR at 800 kHz. The device operates across –40°C to +85°C and includes active power-down functionality (THS2630S variant), though the DGKR package corresponds to the standard THS2630 without PD pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 187 MHz at ±15 V supply - enables wideband signal chain design up to ~100 MHz usable bandwidth with margin. |
| Slew rate | 75 V/µs - supports fast transient response for high-amplitude, high-frequency signals without distortion. |
| Total harmonic distortion | –108 dBc at 2 VPP, 250 kHz, ±15 V - ensures ultra-low distortion in precision measurement and medical imaging. |
| Input voltage noise | 1.1 nV/√Hz at 10 kHz - critical for low-noise amplification of weak sensor or transducer signals. |
| Supply voltage range | ±2.5 V to ±17.5 V (dual) or 5 V to 35 V (single) - accommodates high-headroom industrial and ultrasound systems. |
| Common-mode rejection | 95 dB at 800 kHz - suppresses board-level noise coupling and improves SNR in noisy environments. |
| Quiescent current | 13.2 mA max at ±17.5 V - balances performance and power in continuous high-speed operation. |
Pinout & Package
DGKR denotes the 8-pin VSSOP package (3 mm × 4.9 mm), thermally enhanced with exposed thermal pad on bottom side. Requires PCB copper pour connection to ground or low-impedance plane for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN− (1) | Negative differential input | Accepts inverted-phase input in differential mode; used with VIN+ for balanced signal reception. |
| VIN+ (8) | Positive differential input | Accepts non-inverted-phase input; pair with VIN− defines full differential input path. |
| VOCM (2) | Output common-mode control | Sets DC offset of differential outputs; floating defaults to mid-rail; requires low-Z source for precision biasing. |
| VCC+ (3) | Positive supply rail | Supports up to +17.5 V; must be decoupled locally with ≥0.1 µF ceramic capacitor. |
| VCC− (6) | Negative supply rail | Supports down to –17.5 V; symmetric decoupling required for optimal PSRR and distortion performance. |
| VOUT+ (4) | Positive differential output | Delivers amplified in-phase output; paired with VOUT− forms fully differential output signal. |
| VOUT− (5) | Negative differential output | Delivers amplified out-of-phase output; amplitude and phase balance vs VOUT+ determines CMRR. |
| NC (7) | No-connect terminal | Not internally connected in THS2630 (DGKR); leave unconnected or tie to ground per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential I/O architecture | Enables single-ended-to-differential conversion without transformers, reducing size, cost, and EMI susceptibility. |
| 1.1 nV/√Hz input voltage noise | Preserves signal integrity in low-amplitude applications such as ultrasound echo amplification and precision sensor interfaces. |
| 95 dB CMRR at 800 kHz | Mitigates ground bounce and supply noise in mixed-signal PCBs, improving effective resolution of downstream ADCs. |
| ±17.5 V maximum supply | Supports high-voltage differential signal chains (e.g., 24-bit SAR or sigma-delta ADCs) without external level-shifting stages. |
| VOCM-controlled output bias | Allows direct interface with ADCs requiring specific common-mode input voltage (e.g., 0.9 V, 1.25 V, or VDD/2). |
Applications
| Ultrasound Receive Chain | Differential ADC Driver |
|---|---|
Use Scenario: Amplifying weak, high-frequency echo signals from piezoelectric transducers in portable and diagnostic ultrasound systems. IC Role / Device Role / Timing Role: Fully differential amplifier providing gain, common-mode level shifting, and noise-rejecting signal conditioning before digitization. Use Value: 1.1 nV/√Hz noise floor and –108 dBc THD preserve weak echo fidelity; 187 MHz bandwidth supports >40 MHz center-frequency transducers. |
Use Scenario: Driving high-resolution differential-input ADCs (e.g., ADS127L01, AFE58JD18) in data acquisition and test equipment. IC Role / Device Role / Timing Role: Precision FDA establishing matched output amplitude/phase while rejecting supply and layout-induced common-mode interference. Use Value: 95 dB CMRR and 116 dB SFDR at ±15 V ensure >20-bit ENOB performance; VOCM pin enables direct match to ADC reference voltage. |
| Single-Ended to Differential Conversion | Antialiasing Filter Interface |
Use Scenario: Converting legacy single-ended sensor outputs (e.g., strain gauges, accelerometers) into differential format for noise-immune transmission. IC Role / Device Role / Timing Role: High-speed FDA configured with single-ended input and differential output, maintaining signal integrity across PCB traces. Use Value: 75 V/µs slew rate handles fast transients; resistor-matched feedback network (e.g., 1% RF/RG) ensures <0.01% output balance error. |
Use Scenario: Buffering and level-shifting the output of active antialiasing filters before feeding into differential ADCs in spectrum analyzers and communication receivers. IC Role / Device Role / Timing Role: Low-distortion, wideband FDA isolating filter stage from ADC input capacitance and providing precise common-mode bias. Use Value: 187 MHz bandwidth preserves filter roll-off shape; 1.1 nV/√Hz noise avoids degrading filter's stopband SNR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4561DR | Lower noise (0.89 nV/√Hz), lower bandwidth (1.8 GHz GBW but 950 MHz –3 dB), no VOCM pin - uses internal fixed common-mode bias. | Better for ultra-low-noise, high-GHz applications where VOCM control is unnecessary; unsuitable when ADC requires programmable common-mode voltage. | Select THS4561DR only if VOCM flexibility is not required and higher bandwidth is prioritized over supply voltage headroom (max ±5.5 V). |
| LMH5401RTVT | Higher bandwidth (4.2 GHz GBW, 1.8 GHz –3 dB), higher quiescent current (32 mA), supports ±15 V but rated only to ±5.5 V absolute max. | Targeted at RF/IF signal chains (e.g., direct-conversion receivers); less optimized for precision DC-coupled ultrasound or data acquisition. | Choose LMH5401RTVT for >500 MHz signal paths; avoid in ±15 V industrial systems due to lower absolute max rating and higher power. |
Compared with THS2630DGKR, THS4561DR trades VOCM control for lower noise and higher bandwidth, while LMH5401RTVT offers RF-grade speed at the cost of power and voltage range - making THS2630DGKR optimal for precision, high-voltage, DC-coupled differential signal chains.
Availability
THS2630DGKR is available at Aetrix Electronics and suitable for medical ultrasound systems, high-resolution data acquisition, precision test equipment, and industrial sensor signal conditioning requiring stable component supply and long-term manufacturability.
Supply support for THS2630DGKR 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 decades of expertise in high-performance amplifiers and data converters.
The THS2630 belongs to TI's high-speed, low-noise fully differential amplifier product line, engineered specifically for demanding applications including medical imaging, test instrumentation, and high-fidelity data acquisition where signal integrity, dynamic range, and supply flexibility are critical.
FAQ
What is the supply voltage range supported by the THS2630DGKR?
The THS2630DGKR supports dual-supply operation from ±2.5 V to ±17.5 V and single-supply operation from 5 V to 35 V. This wide range allows it to drive high-voltage differential ADCs and interface directly with legacy ±15 V systems without level-shifting circuitry. Operation at ±17.5 V enables maximum output swing (±13.4 V) and improved dynamic range in precision applications.
Does the THS2630DGKR include a power-down feature?
No, the THS2630DGKR corresponds to the standard THS2630 variant, which does not include the active-low power-down (PD) pin. That function is exclusive to the THS2630S variant (e.g., THS2630SDGKR). The THS2630DGKR remains operational whenever powered within its specified voltage and temperature ranges, with typical quiescent current of 13.2 mA at ±17.5 V.
How does the VOCM pin function in the THS2630DGKR?
The VOCM pin on the THS2630DGKR sets the DC common-mode voltage of the differential outputs. When left floating, it defaults to mid-rail (VCC+/2 + VCC−/2). Applying a low-impedance voltage (e.g., from an ADC's VREF) directly configures the output common-mode level - essential for matching differential ADC input requirements. A 0.1 µF bypass capacitor is recommended to minimize noise coupling.
What package type is used for the THS2630DGKR?
The THS2630DGKR uses the DGKR designation, indicating the 8-pin VSSOP (Very Small Outline Package) with dimensions 3 mm × 4.9 mm and an exposed thermal pad on the underside. This package requires soldering the thermal pad to a PCB copper plane for effective heat dissipation, especially under continuous high-output-swing operation at ±15 V supplies.
Can the THS2630DGKR drive heavy capacitive loads?
The THS2630DGKR is not optimized for direct capacitive loading >10 pF. To maintain stability, a series isolation resistor (≥20 Ω) must be placed between each output and the load - as shown in TI's Figure 8-1. This prevents peaking or oscillation while preserving bandwidth; for 50 Ω systems, a 50 Ω series resistor also provides source termination.
THS2630DGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- 75V/µs
- Gain Bandwidth Product:
- 245 MHz
- -3db Bandwidth:
- 108 MHz
- Current - Input Bias:
- 4.8 µA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 8.9mA
- Current - Output / Channel:
- 85 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 35 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
THS2630DGKR FAQ
1.How can I place an order for THS2630DGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS2630DGKR 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 THS2630DGKR reliable?
The price and inventory of THS2630DGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS2630DGKR is usually 5 days.
3.What payment methods are accepted for THS2630DGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS2630DGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS2630DGKR?
THS2630DGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS2630DGKR 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 THS2630DGKR?
For technical support, including THS2630DGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS2630DGKR requirements.
6.How does Aetrix verify that THS2630DGKR is sourced from the original manufacturer or authorized distributors?
All THS2630DGKR 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 THS2630DGKR meets industry standards.
7.What is the process for return or replacement of THS2630DGKR?
All THS2630DGKR units undergo pre-shipment inspection (PSI). If there is an issue with THS2630DGKR, 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 THS2630DGKR part is unused and in its original packaging.
Return procedure for THS2630DGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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