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Texas Instruments THS4130CDG4
- Part No.:
- THS4130CDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4130CDG4.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,879
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Product details
Overview
THS4130CDG4 from Texas Instruments is a high-speed, low-noise, fully differential input/output amplifier in an 8-pin VSSOP package, delivering 170 MHz bandwidth, 51 V/µs slew rate, and –102 dBc THD at 250 kHz for precision differential signal conditioning in ultrasound front-ends and ADC driver stages.
For engineers reviewing the THS4130CDG4 datasheet, THS4130CDG4 pinout, THS4130CDG4 application, or THS4130CDG4 equivalent, this page provides verified specifications, validated pin functions, confirmed thermal behavior in DGK packaging, and real-world design implications for single-ended-to-differential conversion and high-voltage analog signal chains.
Technical Context
The THS4130CDG4 implements a true fully differential signal path from input to output using TI's high-voltage complementary bipolar process, enabling ±15 V supply operation and 95 dB common-mode rejection at 800 kHz. Its internal VCM error amplifier and matched output buffers support precise common-mode voltage control via the VOCM pin.
It features active low power-down (PD) functionality with 860 µA shutdown current, and its differential output impedance is determined by both external feedback network and internal 10 kΩ resistors tied to the VCM stage - critical for stability when driving capacitive loads above 10 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 170 MHz at ±15 V supply - enables wideband signal acquisition up to ~100 MHz usable baseband. |
| Slew rate | 51 V/µs - supports fast transient response for 2 VPP signals without distortion at >100 kHz. |
| Total harmonic distortion | –102 dBc at 250 kHz, 2 VPP, ±15 V - ensures ultra-low distortion in medical ultrasound and precision data converter interfaces. |
| Input voltage noise | 1.25 nV/√Hz at 10 kHz - maintains SNR integrity in low-amplitude sensor signal amplification. |
| Supply range | ±2.5 V to ±15 V dual or 5 V to 30 V single - accommodates high-headroom industrial and medical analog signal chains. |
| Power-down current | 0.86 mA typical at 25°C - reduces system standby power in portable or battery-sensitive applications. |
| Operating temperature | –40°C to +85°C - qualified for industrial and medical equipment deployed in non-climate-controlled environments. |
Pinout & Package
THS4130CDG4 uses the DGK (8-pin VSSOP) package with exposed thermal pad (electrically isolated), requiring PCB copper pour connection for thermal management per TI SLMA002/SLMA004 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+ | Differential input (+) | High-impedance node accepting single-ended or differential input; common-mode range extends to rails. |
| PD | Power-down control | Active-low logic input; pulled high internally to VCC+ via 250 kΩ; drives device into high-Z state when ≤1.4 V above VCC−. |
| VCC− | Negative supply rail | Connects to negative supply; absolute max rating of –16.5 V; must be decoupled with local 0.1 µF ceramic capacitor. |
| VOUT− | Differential output (−) | Complementary output terminal; output impedance depends on feedback network and internal 10 kΩ resistors. |
| VIN− | Differential input (−) | Matched to VIN+; differential input resistance is 10 kΩ; common-mode input resistance is 215 MΩ. |
| VOCM | Output common-mode control | Accepts low-impedance DC voltage to set output common-mode level; bypass with 0.1 µF capacitor to reduce noise. |
| VCC+ | Positive supply rail | Connects to positive supply; absolute max rating of +16.5 V; requires local 0.1 µF ceramic decoupling. |
| VOUT+ | Differential output (+) | Primary output terminal; differential swing reaches ±11.5 V at ±15 V supply into 1 kΩ load. |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential I/O architecture | Enables single-ended-to-differential conversion without external baluns or transformers, reducing board area and phase mismatch. |
| 95 dB CMRR at 800 kHz | Rejects high-frequency common-mode noise in mixed-signal systems such as ultrasound receivers and motor control feedback paths. |
| Internal VCM error amplifier | Allows precise setting of output common-mode voltage independent of gain configuration, simplifying interface to differential ADCs. |
| 1.25 nV/√Hz input voltage noise | Preserves dynamic range in low-level signal amplification stages, especially critical in time-gain-control (TGC) circuits for medical imaging. |
| Power-down mode with 0.86 mA ICC(SD) | Reduces idle power in multi-channel systems (e.g., ultrasound beamformers) without compromising wake-up latency or signal integrity. |
Applications
| Ultrasound Front-End Driver | Differential ADC Interface |
|---|---|
Use Scenario: Amplifies weak echo signals from piezoelectric transducers before digitization in portable and diagnostic ultrasound systems. IC Role / Device Role / Timing Role: Fully differential amplifier providing gain, common-mode level shifting, and noise rejection between TGC DAC and ADC inputs. Use Value: –102 dBc THD at 250 kHz and 1.25 nV/√Hz noise preserve image resolution and contrast-to-noise ratio across full depth range. |
Use Scenario: Drives high-resolution differential-input ADCs (e.g., ADS127L01, AFE58JD18) in precision data acquisition systems. IC Role / Device Role / Timing Role: Signal conditioner matching ADC input requirements including swing, common-mode voltage, and drive strength. Use Value: 170 MHz bandwidth and ±11.5 V output swing at ±15 V enable full utilization of 24-bit ADC dynamic range up to 100 kHz baseband. |
| Single-Ended to Differential Conversion | Antialiasing Filter Driver |
Use Scenario: Converts legacy single-ended sensor outputs (e.g., strain gauges, accelerometers) into balanced differential signals for noise-immune transmission. IC Role / Device Role / Timing Role: Gain-stage FDA with VOCM-controlled output common-mode, eliminating need for discrete resistor networks or op-amp pairs. Use Value: Matched internal resistors and 95 dB CMRR ensure <0.1% amplitude/phase imbalance, minimizing residual common-mode artifacts. |
Use Scenario: Buffers and drives passive or active antialiasing filters prior to differential ADC sampling in communication and instrumentation systems. IC Role / Device Role / Timing Role: High-output-current driver maintaining filter transfer function integrity under capacitive loading. Use Value: 85 mA output current at ±15 V and built-in series-resistor guidance (20 Ω) prevent ringing when driving RC filters with >10 pF parasitic capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4561IRGET | Lower noise (0.85 nV/√Hz), no power-down pin, 1.8 V to 5.5 V supply only - not compatible with ±15 V operation. | Targeted at low-voltage, high-density portable instrumentation; unsuitable for high-voltage ultrasound or industrial signal chains. | Select THS4561IRGET only if supply is ≤5.5 V and power-down is unnecessary; verify VOCM range compatibility with downstream ADC. |
| LMH5401RTVT | Higher bandwidth (1.8 GHz), integrated level-shifting, but higher quiescent current (32 mA vs 15 mA) and no PD pin. | Optimized for RF/IF differential signaling (e.g., direct RF sampling); overqualified for baseband ultrasound or data acquisition. | Choose LMH5401RTVT only when >500 MHz small-signal bandwidth is required; confirm thermal dissipation capability in VSSOP layout. |
Compared with THS4130CDG4, THS4561IRGET trades high-voltage operation and power-down for lower noise in low-voltage systems, while LMH5401RTVT delivers extreme bandwidth at the cost of power efficiency and design simplicity - making THS4130CDG4 the optimal balance for industrial and medical differential signal conditioning.
Availability
THS4130CDG4 is available at Aetrix Electronics and suitable for medical ultrasound front-ends, high-precision data acquisition systems, and industrial differential sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for THS4130CDG4 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 THS4130CDG4 belongs to TI's THS413x family of fully differential amplifiers, engineered specifically for high-fidelity differential signal conditioning in medical imaging, test equipment, and industrial data acquisition where noise, distortion, and supply flexibility are critical.
FAQ
What is the maximum supply voltage rating for THS4130CDG4?
The THS4130CDG4 has an absolute maximum supply voltage rating of ±16.5 V, with recommended operating range up to ±15 V dual supply or 30 V single supply. Exceeding ±16.5 V risks permanent damage per Section 7.1 Absolute Maximum Ratings. Operation at ±15 V enables full 170 MHz bandwidth and ±11.5 V output swing into 1 kΩ, as verified in the Electrical Characteristics table.
Does THS4130CDG4 support single-supply operation?
Yes, THS4130CDG4 supports single-supply operation from 5 V to 30 V, as specified in Section 7.3 Recommended Operating Conditions. In single-supply mode, the VOCM pin sets output common-mode voltage, and input common-mode range extends from –3.77 V to 4.3 V (referred to VCC–), allowing direct interfacing with ground-referenced sensors when biased appropriately.
How does the PD pin function on THS4130CDG4?
The PD pin on THS4130CDG4 is an active-low power-down control. When pulled ≤1.4 V above VCC–, the device enters high-impedance shutdown mode drawing 0.86 mA typical. An internal 250 kΩ pull-up to VCC+ keeps it enabled if left unconnected. This feature is unique to THS4130 variants - THS4131 lacks PD functionality.
What is the purpose of the VOCM pin on THS4130CDG4?
The VOCM pin on THS4130CDG4 directly controls the output common-mode voltage level. Applying a low-impedance DC voltage to VOCM sets the average of VOUT+ and VOUT−, enabling seamless interface to differential ADCs with specific common-mode input requirements. If left floating, VOCM defaults to (VCC+ + VCC–)/2, and a 0.1 µF bypass capacitor is mandatory to suppress noise coupling.
Can THS4130CDG4 drive capacitive loads reliably?
THS4130CDG4 can drive capacitive loads ≥10 pF only when a series resistor (≥20 Ω) is placed at each output, as shown in Figure 9-1. Without this isolation, internal compensation interacts with load capacitance causing high-frequency ringing or oscillation. This requirement is explicitly documented in Section 9.1.2 and confirmed in Typical Characteristics Figure 7-28 (output impedance vs frequency).
THS4130CDG4 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:
- 14mA
- Current - Output / Channel:
- 85 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4130CDG4 FAQ
1.How can I place an order for THS4130CDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4130CDG4 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 THS4130CDG4 reliable?
The price and inventory of THS4130CDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4130CDG4 is usually 5 days.
3.What payment methods are accepted for THS4130CDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4130CDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4130CDG4?
THS4130CDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4130CDG4 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 THS4130CDG4?
For technical support, including THS4130CDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4130CDG4 requirements.
6.How does Aetrix verify that THS4130CDG4 is sourced from the original manufacturer or authorized distributors?
All THS4130CDG4 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 THS4130CDG4 meets industry standards.
7.What is the process for return or replacement of THS4130CDG4?
All THS4130CDG4 units undergo pre-shipment inspection (PSI). If there is an issue with THS4130CDG4, 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 THS4130CDG4 part is unused and in its original packaging.
Return procedure for THS4130CDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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