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Texas Instruments THS4130ID
- Part No.:
- THS4130ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4130ID.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,212
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Product details
Overview
THS4130ID from Texas Instruments is a fully differential input/output amplifier optimized for high-speed, low-noise signal conditioning in precision analog front-ends. It delivers 170 MHz small-signal bandwidth, –102 dBc THD at 250 kHz (±15 V supply), and 1.25 nV/√Hz input voltage noise, operating across –40°C to +85°C. Its active power-down pin enables dynamic power management in medical ultrasound transceiver chains and differential ADC driver stages.
For engineers reviewing the THS4130ID datasheet, THS4130ID pinout, THS4130ID application, or THS4130ID equivalent, this page provides verified specifications, SOIC-8/VSSOP-8/HVSSOP-8 package mapping, functional mode details, and validated alternative options for differential signal chain design - including single-ended-to-differential conversion, antialiasing filtering, and time-gain control reference buffering.
Technical Context
The THS4130ID implements a true fully differential architecture with matched internal gain blocks and a dedicated VOCM input that directly sets output common-mode voltage. Its bipolar process enables ±15 V supply operation and 95 dB CMRR at 800 kHz, supporting high-dynamic-range differential signaling without external level-shifting circuitry.
It features an active-low power-down pin (PD) referenced to VCC–, enabling shutdown quiescent current of 0.86 mA. In PD mode, outputs enter high-impedance state (>1 MΩ), preserving signal integrity during idle periods in time-multiplexed systems like ultrasound beamforming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 170 MHz at ±15 V supply - supports >100 MSPS ADC sampling with minimal gain roll-off |
| Slew rate | 51 V/µs - enables clean 2 VPP differential output at 250 kHz without slewing distortion |
| Total harmonic distortion | –102 dBc at 2 VPP, 250 kHz (±15 V) - meets SNR > 100 dB requirements for medical imaging front-ends |
| Input voltage noise | 1.25 nV/√Hz at 10 kHz - critical for preserving signal fidelity in low-amplitude ultrasound echo amplification |
| Supply range | ±2.5 V to ±15 V dual or 5 V to 30 V single - accommodates both portable battery-powered and industrial high-voltage signal chains |
| Quiescent current (shutdown) | 0.86 mA - reduces system-level power by >90% vs active mode (13 mA) during inactive beam cycles |
| Operating temperature | –40°C to +85°C - qualified for industrial and medical equipment deployed in uncontrolled environments |
Pinout & Package
THS4130ID is available in three surface-mount packages: SOIC-8 (D), VSSOP-8 (DGK), and HVSSOP-8 (DGN). All variants share identical pin numbering and function mapping per TI SLOS318L Rev L.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+ | Differential input (+) | High-impedance, matched input node; requires symmetrical layout to preserve balance and CMRR |
| PD | Power-down control | Active-low logic input; pulled up internally to VCC+ via 250 kΩ; drives to VCC– to enter shutdown |
| VCC– | Negative supply rail | Must be decoupled with ≥0.1 µF ceramic capacitor near pin; defines PD threshold reference |
| VOUT– | Differential output (–) | Provides inverted output signal; paired with VOUT+ for true differential swing up to ±11.5 V (±15 V supply) |
| VIN– | Differential input (–) | Complementary input node; matched to VIN+ for optimal common-mode rejection |
| VOCM | Output common-mode control | DC voltage input setting output midpoint; bypass with 0.1 µF to suppress noise coupling into differential path |
| VCC+ | Positive supply rail | Primary power input; requires local 0.1 µF + 10 µF decoupling; supplies internal bias and output stage |
| VOUT+ | Differential output (+) | Non-inverted output; forms balanced pair with VOUT–; output impedance ~41 Ω (open-loop) |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential I/O architecture | Eliminates need for external baluns or transformer-based single-ended-to-differential conversion |
| 95 dB CMRR at 800 kHz | Rejects board-level switching noise and EMI in mixed-signal PCBs without additional filtering |
| 1.25 nV/√Hz input voltage noise | Preserves weak echo signals in ultrasound receivers where SNR degradation must be <0.1 dB |
| Active power-down with high-Z outputs | Enables time-gated operation in multi-channel beamformers without loading downstream ADC inputs |
| ±15 V supply capability | Supports 24-bit ADC full-scale ranges up to ±10 V differential while maintaining linearity and headroom |
Applications
| Medical Ultrasound Receiver | Differential ADC Driver |
|---|---|
Use Scenario: Amplifying low-amplitude RF echo signals from piezoelectric transducers before digitization. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth FDA providing single-ended-to-differential conversion and programmable output common-mode level. Use Value: 1.25 nV/√Hz noise floor and –102 dBc THD ensure >100 dB effective number of bits (ENOB) when driving 16+ bit ADCs at 40–100 MSPS. |
Use Scenario: Driving the differential inputs of high-resolution SAR or pipeline ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Precision gain stage with VOCM-controlled output centering to match ADC input range and maximize dynamic range utilization. Use Value: 170 MHz bandwidth and 51 V/µs slew rate support settling within 61 ns to 0.01%, enabling accurate sampling of fast transient waveforms. |
| Differential Antialiasing Filter Driver | Time-Gain Control (TGC) Reference Buffer |
Use Scenario: Driving passive RC or active filter networks preceding ADCs to enforce Nyquist compliance. IC Role / Device Role / Timing Role: High-output-current FDA delivering stable differential drive into reactive filter loads up to 10 pF. Use Value: Output current capability of 85 mA (±15 V) ensures minimal droop and phase shift across filter cutoff frequencies up to 20 MHz. |
Use Scenario: Buffering DAC-generated reference voltages for variable-gain amplifier control in ultrasound TGC modules. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer with VOCM pin used to set precise DC offset for gain-control voltage rails. Use Value: Input offset voltage drift of only 2 µV/°C prevents gain calibration drift over temperature in clinical-grade imaging systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4561IDGKR | Lower noise (0.85 nV/√Hz), no power-down pin, 1.2 GHz GBW, but lower output swing (±3.5 V @ ±5 V) | Better for wideband RF sampling; unsuitable for ±15 V signal chains or power-gated systems | Select THS4561IDGKR only when ultra-low noise dominates over supply flexibility and power management. |
| ADA4941-1YCPZ-R7 | Lower quiescent current (2.2 mA active), rail-to-rail output, but narrower bandwidth (55 MHz) and higher THD (–82 dBc @ 1 MHz) | Preferred for battery-powered portable diagnostics where power efficiency outweighs speed/noise demands | Choose ADA4941-1YCPZ-R7 when thermal constraints or energy budget limit active-mode current to <3 mA. |
Compared with THS4130ID, THS4561IDGKR trades power-down capability and ±15 V operation for superior noise and bandwidth, while ADA4941-1YCPZ-R7 sacrifices speed and distortion performance to achieve sub-3 mA quiescent current - making THS4130ID the optimal choice for high-fidelity, high-voltage, power-managed differential signal chains.
Availability
THS4130ID is available at Aetrix Electronics and suitable for medical ultrasound receivers, high-resolution data acquisition systems, and industrial differential sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for THS4130ID 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 amplifier design and manufacturing.
The THS413x family was engineered specifically for demanding differential signal conditioning in medical imaging, test equipment, and communications infrastructure - emphasizing low distortion, wide bandwidth, and robust common-mode rejection under real-world PCB conditions.
FAQ
What is the maximum supply voltage for THS4130ID?
The THS4130ID supports dual-supply operation up to ±15 V (30 V total) or single-supply operation from 5 V to 30 V. Absolute maximum supply voltage is 33 V, but recommended operating range limits ensure long-term reliability and specified performance across –40°C to +85°C. Exceeding ±15 V may degrade distortion and output swing without improving bandwidth.
Does THS4130ID require external resistors for gain configuration?
Yes, THS4130ID uses external feedback (RF) and gain-setting (RG) resistors to configure closed-loop gain. For G = 1 V/V, TI recommends 390 Ω for both RF and RG; for G = 2 V/V, 750 Ω RF and 374 Ω RG are specified. Resistor matching ≤1% tolerance is required to maintain output balance and preserve CMRR and THD performance.
How does the VOCM pin affect THS4130ID output behavior?
The VOCM pin directly sets the DC common-mode voltage of both VOUT+ and VOUT– outputs. When driven by a low-impedance source, it overrides the internal mid-rail default (VCC+ + VCC–)/2. This allows precise alignment with ADC input common-mode requirements. A 0.1 µF bypass capacitor is mandatory to prevent noise injection into the differential output path.
Can THS4130ID drive capacitive loads without instability?
THS4130ID is not unity-gain stable into pure capacitive loads >10 pF. To maintain stability, TI specifies adding a 20 Ω series resistor at each output when driving >10 pF. This isolates the amplifier's output stage from load capacitance, preventing peaking or oscillation - especially critical in PCB traces feeding ADC inputs or filters.
Is THS4130ID pin-compatible with THS4131ID?
No - THS4130ID includes a dedicated PD (power-down) pin at Pin 7, while THS4131ID substitutes Pin 7 with NC (no connect). Both share identical pinout for VIN+, VCC–, VOUT–, VIN–, VOCM, VCC+, and VOUT+, but the absence of PD functionality in THS4131ID means THS4130ID cannot be replaced by THS4131ID in power-gated designs without circuit modification.
THS4130ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- 52V/µs
- Gain Bandwidth Product:
- 225 MHz
- -3db Bandwidth:
- 150 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 12.3mA
- Current - Output / Channel:
- 85 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 33 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4130ID FAQ
1.How can I place an order for THS4130ID through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4130ID 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 THS4130ID reliable?
The price and inventory of THS4130ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4130ID is usually 5 days.
3.What payment methods are accepted for THS4130ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4130ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4130ID?
THS4130ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4130ID 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 THS4130ID?
For technical support, including THS4130ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4130ID requirements.
6.How does Aetrix verify that THS4130ID is sourced from the original manufacturer or authorized distributors?
All THS4130ID 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 THS4130ID meets industry standards.
7.What is the process for return or replacement of THS4130ID?
All THS4130ID units undergo pre-shipment inspection (PSI). If there is an issue with THS4130ID, 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 THS4130ID part is unused and in its original packaging.
Return procedure for THS4130ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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