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Texas Instruments THS2630SDR
- Part No.:
- THS2630SDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS2630SDR.pdf
- Description:
- THS2630SDR
- Quantity:
- Payment:
- Shipping:
Inventory:3,505
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Product details
Overview
THS2630SDR from Texas Instruments is a fully differential-input and differential-output amplifier optimized for high-speed, low-noise 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-fidelity differential ADC driving and single-ended-to-differential conversion in medical ultrasound and test equipment.
For engineers reviewing the THS2630SDR datasheet, THS2630SDR pinout, THS2630SDR application, or THS2630SDR equivalent, key selection criteria include its 1.1 nV/√Hz input voltage noise, ±17.5 V maximum supply capability, VOCM-controlled output common-mode level, power-down functionality (THS2630S variant), and SOIC-8 package compatibility with industrial temperature range (–40°C to +85°C).
Technical Context
The THS2630SDR implements a true fully differential signal path from input to output using TI's high-voltage complementary bipolar process, supporting dual supplies up to ±17.5 V or single supply from 5 V to 35 V. Its internal VOCM error amplifier enables precise control of output common-mode voltage, critical for interfacing with differential ADCs requiring specific reference levels.
It achieves 95 dB CMRR at 800 kHz and maintains –108 dBc THD at 250 kHz under ±15 V operation, confirming robust rejection of common-mode interference and minimal harmonic generation in wideband signal chains. The device operates across –40°C to +85°C and features internal 30 kΩ input resistors that define gain-setting network behavior in standard FDA configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 187 MHz at ±15 V supply - supports >100 MSPS sampling in ADC driver applications without bandwidth limitation |
| Slew rate | 75 V/µs - enables clean reproduction of fast transient signals up to ~12 MHz full-power bandwidth (20 Vpp) |
| Total harmonic distortion | –108 dBc at 250 kHz, 2 Vpp, ±15 V - ensures minimal spectral contamination in high-resolution digitization paths |
| Input voltage noise | 1.1 nV/√Hz at 10 kHz - preserves SNR in low-amplitude sensor signal amplification stages |
| Common-mode rejection | 95 dB at 800 kHz - suppresses board-level coupling and EMI in mixed-signal PCB layouts |
| Supply voltage range | ±2.5 V to ±17.5 V dual or 5 V to 35 V single - accommodates legacy ±15 V systems and modern low-voltage designs |
| Operating temperature | –40°C to +85°C - qualified for industrial and medical equipment deployment without derating |
Pinout & Package
THS2630SDR is packaged in an 8-pin SOIC (D package), 4.9 mm × 6 mm body size, with exposed thermal pad not present (HVSSOP variant DGN includes PowerPAD; SOIC does not). Pin functions are validated per TI SLOSE96A Rev A (July 2023).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN− (Pin 1) | Differential input (inverting) | Accepts negative half of fully differential input signal; matched impedance to VIN+ for balanced drive |
| VIN+ (Pin 8) | Differential input (non-inverting) | Accepts positive half of fully differential input; internal 30 kΩ resistor sets gain network reference point |
| VOCM (Pin 2) | Output common-mode control | Directly programs DC level of differential output pair; floating defaults to midsupply (VCC+/2 + VCC−/2) |
| VCC+ (Pin 3) | Positive supply rail | Supports up to +17.5 V; powers internal bias circuitry and output stage high-side drivers |
| VOUT+ (Pin 4) | Differential output (positive) | Delivers amplified, phase-aligned output; requires matched termination to preserve balance and CMRR |
| VOUT− (Pin 5) | Differential output (negative) | Delivers inverted-phase output; paired with VOUT+ to form true differential signal with 180° phase relationship |
| VCC− (Pin 6) | Negative supply rail | Supports down to –17.5 V; referenced internally for VOCM and input stage biasing |
| PD (Pin 7) | Power-down enable (active-low) | Drives device into high-Z state (<1 µA quiescent current) when pulled ≤1.4 V above VCC−; internal 250 kΩ pull-up to VCC+ |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential I/O architecture | Enables single-ended-to-differential conversion without transformers or discrete baluns, reducing BOM count and layout area |
| 1.1 nV/√Hz input voltage noise | Preserves dynamic range in low-level signal chains such as ultrasound receive paths and precision sensor interfaces |
| 95 dB CMRR at 800 kHz | Rejects high-frequency switching noise from adjacent digital circuits and power supplies in dense PCB environments |
| VOCM pin with midsupply default | Eliminates need for external reference buffers when interfacing with mid-scale-referenced differential ADCs (e.g., ADSx8xx series) |
| ±17.5 V maximum supply rating | Supports legacy industrial instrumentation and medical imaging systems requiring high headroom without external level-shifting |
Applications
| Medical Ultrasound Receive Chain | Differential ADC Driver |
|---|---|
|
Use Scenario: Amplifying weak echo signals from piezoelectric transducers before digitization in portable and cart-based ultrasound systems. IC Role / Device Role / Timing Role: Fully differential amplifier providing gain, common-mode level shifting, and noise rejection between transducer front-end and 14-bit+ ADC. Use Value: 1.1 nV/√Hz noise floor and –108 dBc THD preserve image contrast resolution and reduce post-processing artifacts in B-mode imaging. |
Use Scenario: Driving high-speed differential inputs of pipeline or SAR ADCs in automated test equipment and data acquisition systems. IC Role / Device Role / Timing Role: Signal conditioner matching ADC input requirements for amplitude, common-mode voltage, and drive strength. Use Value: 187 MHz bandwidth and 75 V/µs slew rate support 10+ MSPS sampling without settling error or harmonic distortion degradation. |
| Single-Ended to Differential Conversion | Differential Antialiasing Filter Interface |
|
Use Scenario: Converting legacy single-ended sensor outputs (e.g., strain gauges, accelerometers) to differential format for noise-immune transmission over PCB traces or cables. IC Role / Device Role / Timing Role: Active balun replacing passive transformers; provides gain, level shift, and impedance transformation. Use Value: Eliminates transformer saturation and frequency response limitations while maintaining >95 dB CMRR up to 800 kHz. |
Use Scenario: Interfacing switched-capacitor antialiasing filters (e.g., LTC1060 family) to differential ADCs in precision measurement instruments. IC Role / Device Role / Timing Role: Buffer and level translator ensuring filter output common-mode matches ADC input specification. Use Value: VOCM pin allows direct connection to filter's common-mode reference node, avoiding additional op-amp stages and associated noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4561IDR | Lower noise (0.89 nV/√Hz), lower bandwidth (1.1 GHz), no PD pin, VSSOP-10 package | Better suited for RF/IF signal chains requiring ultra-low noise and higher bandwidth; lacks power-down mode | Select THS4561IDR when >1 GHz small-signal bandwidth and sub-0.9 nV/√Hz noise are required, and shutdown functionality is unnecessary. |
| ADA4940-1ARZ | Lower supply range (±5 V max), higher input bias current (2.5 µA), SOIC-8 package, no PD pin | Optimized for low-power, low-voltage precision applications; unsuitable for ±15 V or high-headroom systems | Choose ADA4940-1ARZ for battery-powered or 5 V-only systems where power efficiency and cost outweigh high-voltage capability. |
Compared with THS2630SDR, THS4561IDR offers superior noise and bandwidth but sacrifices power-down control and ±17.5 V operation; ADA4940-1ARZ trades voltage range and shutdown for lower quiescent current and cost in low-voltage designs.
Availability
THS2630SDR is available at Aetrix Electronics and suitable for medical ultrasound systems, high-speed data acquisition, industrial instrumentation, and test equipment requiring stable component supply across extended temperature and voltage ranges.
Supply support for THS2630SDR 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 decades of expertise in high-performance amplifier design and manufacturing.
The THS2630SDR belongs to TI's high-speed fully differential amplifier product line, engineered specifically for demanding signal chain applications requiring wide bandwidth, ultra-low distortion, and flexible supply operation in medical, test, and industrial systems.
FAQ
What is the maximum supply voltage rating for THS2630SDR?
The THS2630SDR supports dual-supply operation up to ±17.5 V or single-supply operation from 5 V to 35 V. This rating is specified in the Absolute Maximum Ratings table of the official datasheet (SLOSE96A Rev A), and operation beyond these limits risks permanent damage. The device is commonly used at ±15 V to maximize dynamic range in industrial and medical applications.
Does THS2630SDR include a power-down feature?
Yes, THS2630SDR incorporates an active-low power-down (PD) pin on Pin 7. When pulled ≤1.4 V above VCC−, the device enters high-impedance shutdown mode with <1 µA quiescent current. An internal 250 kΩ pull-up to VCC+ keeps it enabled if left unconnected. Note that THS2630 (non-S) variants omit this pin; THS2630SDR corresponds to the THS2630S version with PD functionality.
How is the output common-mode voltage set on THS2630SDR?
The VOCM pin (Pin 2) directly controls the output common-mode voltage of THS2630SDR. Applying a low-impedance voltage source to VOCM sets the average DC level of VOUT+ and VOUT−. If left floating, VOCM defaults to midsupply (VCC+/2 + VCC−/2). A 0.1 µF bypass capacitor is recommended to minimize noise coupling onto this critical control node.
What package type is used for THS2630SDR?
THS2630SDR is supplied in an 8-pin SOIC (D package), measuring 4.9 mm × 6 mm. This is distinct from the HVSSOP (DGN) and VSSOP (DGK) variants. The SOIC package has no thermal pad; thermal performance relies on PCB copper area under the body, with RθJA = 126.3°C/W per datasheet section 6.4.
Can THS2630SDR drive capacitive loads directly?
No - THS2630SDR requires isolation for capacitive loads >10 pF to maintain stability. Per datasheet Figure 8-1 and Section 8.1.2, a 20 Ω series resistor must be placed at each output (VOUT+ and VOUT−) when driving cables, ADC input capacitance, or filtering networks. Omitting this resistor risks high-frequency ringing or oscillation due to reduced phase margin from capacitive loading.
THS2630SDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
THS2630SDR FAQ
1.How can I place an order for THS2630SDR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS2630SDR 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 THS2630SDR reliable?
The price and inventory of THS2630SDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS2630SDR is usually 5 days.
3.What payment methods are accepted for THS2630SDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS2630SDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS2630SDR?
THS2630SDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS2630SDR 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 THS2630SDR?
For technical support, including THS2630SDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS2630SDR requirements.
6.How does Aetrix verify that THS2630SDR is sourced from the original manufacturer or authorized distributors?
All THS2630SDR 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 THS2630SDR meets industry standards.
7.What is the process for return or replacement of THS2630SDR?
All THS2630SDR units undergo pre-shipment inspection (PSI). If there is an issue with THS2630SDR, 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 THS2630SDR part is unused and in its original packaging.
Return procedure for THS2630SDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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