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Texas Instruments THS4130IDR
- Part No.:
- THS4130IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4130IDR.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,768
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Product details
Overview
THS4130IDR 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, 1.25 nV/√Hz input voltage noise, and operates from ±2.5 V to ±15 V dual supplies or 5 V to 30 V single supply - enabling high-dynamic-range differential ADC driving in medical ultrasound and instrumentation.
For engineers reviewing the THS4130IDR datasheet, THS4130IDR pinout, THS4130IDR application, or THS4130IDR equivalent, key selection criteria include its active-low power-down capability (860 µA shutdown current), 95 dB CMRR at 800 kHz, VOCM-controlled output common-mode level, and compatibility with SOIC-8, VSSOP-8, and HVSSOP-8 packages - all critical for noise-sensitive, wide-supply-range differential signal chains.
Technical Context
The THS4130IDR implements a true fully differential architecture with matched internal gain stages and a dedicated VOCM input that directly sets the output common-mode voltage - eliminating reliance on external resistor dividers and minimizing common-mode error propagation. Its complementary bipolar process enables rail-to-rail output swing capability and stable operation into capacitive loads when series isolation resistors are used.
Unlike conventional op-amps, the THS4130IDR's differential feedback topology inherently suppresses even-order harmonics and rejects common-mode interference across its full 170 MHz bandwidth. Its power-down mode reduces quiescent current to 860 µA while placing outputs in high-impedance state (>1 MΩ), supporting dynamic power management in battery-aware or burst-mode systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 170 MHz at ±15 V supply - supports high-fidelity signal acquisition up to Nyquist frequencies of 85 MHz for 16-bit+ ADCs. |
| Slew rate | 51 V/µs - ensures faithful reproduction of fast transient signals without slew-induced distortion in pulse-based systems. |
| Total harmonic distortion | –102 dBc at 2 VPP, 250 kHz - meets stringent linearity requirements for ultrasound beamforming and precision test equipment. |
| Input voltage noise | 1.25 nV/√Hz at 10 kHz - enables detection of microvolt-level signals in low-amplitude sensor interfaces. |
| Common-mode rejection ratio | 95 dB at 800 kHz - provides robust immunity to EMI and ground-loop noise in mixed-signal PCB layouts. |
| Supply range | ±2.5 V to ±15 V dual or 5 V to 30 V single - accommodates both low-power portable designs and high-voltage industrial signal chains. |
| Power-down current | 0.86 mA typical - allows >90% supply current reduction during idle cycles without sacrificing startup time or settling performance. |
Pinout & Package
THS4130IDR is available in SOIC-8 (D), VSSOP-8 (DGK), and HVSSOP-8 (DGN) packages. 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 accepting single-ended or differential source signals; requires symmetrical layout for optimal balance. |
| PD | Active-low power-down control | Pulled to VCC– to disable amplifier; internal 250 kΩ pull-up to VCC+ keeps device enabled if left floating. |
| VCC– | Negative supply rail | Supports dual-supply operation down to –15 V; must be decoupled with ≥0.1 µF ceramic capacitor near pin. |
| VOUT– | Differential output (–) | Complementary output delivering inverted signal; forms differential pair with VOUT+ for noise-cancelling transmission. |
| VIN– | Differential input (–) | Matched counterpart to VIN+; differential input resistance is 10 kΩ, common-mode resistance is 215 MΩ. |
| VOCM | Output common-mode voltage reference | DC voltage applied here directly sets midpoint of VOUT+/VOUT– swing; bypass with 0.1 µF capacitor to reduce noise coupling. |
| VCC+ | Positive supply rail | Supports up to +15 V; thermal pad in DGN package must connect to large copper plane for RθJB = 30.0 °C/W. |
| VOUT+ | Differential output (+) | Primary output delivering non-inverted signal; differential output impedance is [(2×RF + 2×RG) || 20 kΩ] in closed-loop configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential I/O architecture | Eliminates need for external baluns or transformer coupling - simplifies PCB layout and preserves phase matching in RF and ultrasound timing paths. |
| Adjustable output common-mode voltage (VOCM) | Enables seamless interfacing with ADCs requiring specific input common-mode levels (e.g., 0.9 V, 1.25 V, or mid-rail) without external level-shifting circuitry. |
| 95 dB CMRR at 800 kHz | Rejects board-level noise and supply ripple in real-time, critical for maintaining SNR in high-gain, multi-stage AFEs used in portable diagnostics. |
| 1.25 nV/√Hz input voltage noise | Preserves signal integrity in low-amplitude applications such as piezoelectric sensor amplification where thermal noise dominates system noise floor. |
| Active-low power-down with 860 µA quiescent current | Supports duty-cycled operation in battery-powered devices like handheld ultrasound probes - extends operational life without compromising wake-up latency. |
Applications
| Medical Ultrasound Beamforming | Differential ADC Driver |
|---|---|
Use Scenario: Amplifying weak echo signals from phased-array transducers before digitization in portable 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: 170 MHz bandwidth captures harmonics up to 85 MHz; –102 dBc THD prevents image artifacts; VOCM pin matches ADC input range without external components. |
Use Scenario: Driving high-resolution SAR or pipeline ADCs in automated test equipment requiring low distortion and precise DC accuracy. IC Role / Device Role / Timing Role: Differential driver stage ensuring balanced signal delivery to ADC inputs while rejecting ground bounce and supply noise. Use Value: 95 dB CMRR maintains SNR in noisy digital environments; 1.25 nV/√Hz noise floor preserves ENOB; 51 V/µs slew rate supports fast settling for high-throughput sampling. |
| Single-Ended to Differential Conversion | Differential Antialiasing Filter Interface |
Use Scenario: Converting legacy single-ended sensor outputs (e.g., strain gauges, RTDs) into differential format for improved noise immunity in industrial PLC modules. IC Role / Device Role / Timing Role: Single-ended input amplifier configured with VOCM reference to generate matched differential output pair. Use Value: Eliminates need for discrete op-amp pairs; resistor-matching tolerance relaxed by internal symmetry; 10 kΩ differential input resistance minimizes loading on high-Z sensors. |
Use Scenario: Interfacing passive or active antialiasing filters to differential-input ADCs in data acquisition systems operating up to 100 kSPS. IC Role / Device Role / Timing Role: Buffer and level translator between filter output and ADC input, preserving phase coherence and amplitude balance. Use Value: High input impedance (215 MΩ common-mode) avoids filter loading; VOCM control aligns output with ADC common-mode requirement; low THD prevents aliasing distortion. |
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), wider bandwidth (3200 MHz GBW), but no power-down pin and only 3.3 V/5 V supply support. | Better suited for RF/IF signal chains above 100 MHz; lacks shutdown capability needed for power-constrained ultrasound probes. | Select THS4561IRGET when ultra-low noise and GHz-range bandwidth outweigh power-down necessity and supply flexibility. |
| ADA4940-1ARZ | Higher THD (–92 dBc at 1 MHz), lower slew rate (35 V/µs), but includes internal feedback resistors and rail-to-rail output swing on 3.3 V supply. | Ideal for compact, low-voltage data acquisition boards where board space is constrained and ±15 V rails are unavailable. | Choose ADA4940-1ARZ for space-limited, single-supply designs where moderate distortion and reduced speed are acceptable trade-offs. |
Compared with THS4130IDR, THS4561IRGET offers superior noise and bandwidth but sacrifices power-down functionality and wide-supply operation; ADA4940-1ARZ trades off linearity and speed for integration and low-voltage compatibility - making THS4130IDR the optimal choice for high-dynamic-range, dual-supply, power-managed differential signal chains.
Availability
THS4130IDR is available at Aetrix Electronics and suitable for medical imaging systems, high-precision data acquisition, and industrial instrumentation requiring stable component supply across extended temperature ranges (–40°C to +85°C).
Supply support for THS4130IDR 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 over 90 years of innovation in high-performance signal chain solutions.
The THS413x family was designed specifically for demanding differential signal conditioning tasks - including ultrasound, test equipment, and high-speed data conversion - where low noise, high linearity, and flexible common-mode control are essential.
FAQ
What is the maximum supply voltage rating for THS4130IDR?
The THS4130IDR has an absolute maximum supply voltage rating of 33 V across VCC+ and VCC– pins. Recommended operating conditions specify dual-supply operation from ±2.5 V to ±15 V or single-supply operation from 5 V to 30 V. Exceeding ±15 V in continuous operation risks exceeding junction temperature limits and degrading long-term reliability, especially in SOIC-8 packages with higher thermal resistance (RθJA = 126.3 °C/W).
Does THS4130IDR support single-ended input configurations?
Yes, THS4130IDR supports single-ended input operation using standard FDA configurations - applying the signal to VIN+ while grounding VIN– or referencing it to VOCM. The device maintains 170 MHz bandwidth and –102 dBc THD under these conditions when properly terminated and biased. Layout symmetry remains critical to preserve common-mode rejection and minimize second-harmonic distortion.
How does the VOCM pin affect THS4130IDR's output swing?
The VOCM pin directly sets the average DC level of VOUT+ and VOUT–. For example, with VOCM = 2.5 V and ±5 V supplies, the outputs swing symmetrically around 2.5 V - e.g., from 0.5 V to 4.5 V differentially. Output voltage swing is supply-dependent: at ±15 V, THS4130IDR delivers ±11.2 V (min) into 1 kΩ load. Incorrect VOCM biasing can clip one side of the differential output, reducing effective dynamic range.
What is the purpose of the PD pin on THS4130IDR?
The PD (power-down) pin on THS4130IDR is an active-low control input that places the amplifier in low-power standby mode when pulled below ~1.4 V above VCC–. In this state, quiescent current drops to 0.86 mA typical, and outputs enter high-impedance mode (>1 MΩ). An internal 250 kΩ pull-up to VCC+ keeps the device enabled if PD is left unconnected - no external pull-up required.
Which package options are available for THS4130IDR and how do they differ thermally?
THS4130IDR is offered in SOIC-8 (D), VSSOP-8 (DGK), and HVSSOP-8 (DGN) packages. The DGN variant includes an exposed thermal pad that lowers junction-to-board thermal resistance to 30.0 °C/W - significantly improving power dissipation capability versus D (69.8 °C/W) and DGK (83.2 °C/W). This makes HVSSOP-8 preferred for high-output-swing or continuous high-frequency operation where self-heating must be minimized.
THS4130IDR 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:
- 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
THS4130IDR FAQ
1.How can I place an order for THS4130IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4130IDR 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 THS4130IDR reliable?
The price and inventory of THS4130IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4130IDR is usually 5 days.
3.What payment methods are accepted for THS4130IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4130IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4130IDR?
THS4130IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4130IDR 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 THS4130IDR?
For technical support, including THS4130IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4130IDR requirements.
6.How does Aetrix verify that THS4130IDR is sourced from the original manufacturer or authorized distributors?
All THS4130IDR 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 THS4130IDR meets industry standards.
7.What is the process for return or replacement of THS4130IDR?
All THS4130IDR units undergo pre-shipment inspection (PSI). If there is an issue with THS4130IDR, 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 THS4130IDR part is unused and in its original packaging.
Return procedure for THS4130IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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