My Inquiry
My Account
Texas Instruments THS4130IDRG4
- Part No.:
- THS4130IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4130IDRG4.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,608
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
THS4130IDRG4 from Texas Instruments is a high-speed, low-noise, fully differential input/output amplifier optimized for precision differential signal conditioning in wide-bandwidth analog front-ends. It delivers 170 MHz small-signal bandwidth (±15 V supply), 51 V/µs slew rate, –102 dBc THD at 250 kHz, and 1.25 nV/√Hz input voltage noise. Designed for ±2.5 V to ±15 V dual-supply or 5 V to 30 V single-supply operation, it serves as a differential ADC driver in medical ultrasound and instrumentation systems.
For engineers reviewing the THS4130IDRG4 datasheet, THS4130IDRG4 pinout, THS4130IDRG4 application, or THS4130IDRG4 equivalent, key selection criteria include its active power-down capability (PD pin), VOCM-controlled output common-mode level, differential output impedance behavior, and thermal performance in HVSSOP-8 packaging - all critical for noise-sensitive, high-dynamic-range signal chain design.
Technical Context
The THS4130IDRG4 implements a true fully differential architecture with matched internal gain stages and a dedicated VOCM input that directly sets the output common-mode voltage. Its bipolar process enables high slew rate and low distortion while maintaining >95 dB CMRR at 800 kHz and 78 dB open-loop gain.
It supports both differential and single-ended input configurations via external resistor networks, with gain programmability (G = 1–10) using standard feedback topologies. The active-low PD pin reduces quiescent current to 0.86 mA, placing outputs in high-impedance state (>1 MΩ) without disrupting bias integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 170 MHz at ±15 V supply - enables accurate amplification of signals up to ~100 MHz fundamental with <0.1 dB gain flatness. |
| Slew rate | 51 V/µs - supports full-scale transient response for ≥10 VPP signals at >5 MHz without slewing-induced distortion. |
| Total harmonic distortion | –102 dBc at 250 kHz, 2 VPP - ensures minimal even-order harmonics in precision ADC driving applications. |
| Input voltage noise | 1.25 nV/√Hz at 10 kHz - contributes <1.8 µV RMS integrated noise over 100 kHz bandwidth, critical for low-level sensor interfaces. |
| Common-mode rejection ratio | 95 dB at 800 kHz - rejects >99.997% of interfering common-mode noise in mixed-signal PCB environments. |
| Quiescent current (shutdown) | 0.86 mA - reduces system standby power by >90% vs active mode (13 mA), enabling energy-efficient portable designs. |
| Operating temperature range | –40°C to +85°C - qualified for industrial and medical equipment deployed in uncontrolled ambient conditions. |
Pinout & Package
THS4130IDRG4 is packaged in an 8-pin HVSSOP (PowerPAD™) package (DGN suffix), featuring an exposed thermal pad on the underside for enhanced heat dissipation. The pad is electrically isolated and must be soldered to a large copper plane for optimal thermal performance (RθJB = 30.0°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+ | Differential input (+) | Accepts positive-phase input signal; forms balanced pair with VIN− for common-mode noise cancellation. |
| PD | Active-low power-down control | Pulls to VCC− to disable amplifier; internal 250 kΩ pull-up to VCC+ keeps device enabled if floating. |
| VCC− | Negative supply rail | Supports dual-supply operation down to –15 V; defines lower bound of input common-mode range (–3.77 V min). |
| VOUT− | Differential output (−) | Delivers inverted-phase output; paired with VOUT+ to form fully differential signal with 180° phase relationship. |
| VIN− | Differential input (−) | Accepts negative-phase input signal; matched input impedance (215 MΩ common-mode, 10 kΩ differential) preserves balance. |
| VOCM | Output common-mode voltage reference | DC voltage applied here sets midpoint of VOUT+ and VOUT− swing; bypass with 0.1 µF capacitor to suppress noise coupling. |
| VCC+ | Positive supply rail | Supports dual-supply up to +15 V or single-supply up to +30 V; determines maximum output swing (±11.5 V typical). |
| VOUT+ | Differential output (+) | Delivers non-inverted-phase output; differential output impedance is [(2×RF + 2×RG) || 20 kΩ] in closed-loop configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential I/O architecture | Enables single-ended-to-differential conversion without external baluns, reducing component count and layout asymmetry in ADC interface circuits. |
| Active power-down with high-Z outputs | Reduces supply current to sub-mA level while isolating downstream circuitry - essential for time-gated acquisition in ultrasound beamforming. |
| VOCM-controlled output common-mode level | Allows precise alignment of differential output swing to ADC input range (e.g., 0.9–4.1 V for 5 V single supply), maximizing SNR utilization. |
| Low 1/f noise corner (350 Hz) | Minimizes low-frequency drift and flicker noise in DC-coupled medical imaging channels where baseline stability is critical. |
| High supply voltage capability (±15 V) | Provides >22 VPP differential output headroom, supporting high-fidelity signal chains in industrial DAQ and test equipment. |
Applications
| Medical Ultrasound Beamforming | Differential ADC Driver |
|---|---|
|
Use Scenario: Time-gain-controlled analog signals from transducer arrays are conditioned before digitization in portable ultrasound systems. IC Role / Device Role / Timing Role: THS4130IDRG4 acts as a low-noise, high-linearity differential driver between TGC DACs and high-speed ADCs, with VOCM synchronized to ADC reference. Use Value: –102 dBc THD and 1.25 nV/√Hz noise preserve weak echo signal integrity across 1–15 MHz bandwidth, directly improving image contrast resolution. |
Use Scenario: Driving 16-bit+ SAR or pipeline ADCs in precision data acquisition modules requiring >90 dB SFDR. IC Role / Device Role / Timing Role: THS4130IDRG4 provides gain, common-mode level shifting, and differential conversion for single-ended sensor outputs (e.g., strain gauges, RTDs). Use Value: 95 dB CMRR rejects PCB-coupled switching noise from digital domains, preventing aliasing and maintaining effective number of bits (ENOB). |
| Single-Ended to Differential Conversion | Differential Antialiasing Filter Interface |
|
Use Scenario: Converting legacy single-ended signal sources (e.g., op amp outputs, DACs) into balanced differential format for noise-immune transmission. IC Role / Device Role / Timing Role: THS4130IDRG4 functions as unity-gain inverter with VOCM set to mid-rail, generating complementary outputs from one input. Use Value: Matched internal gain paths and 10 kΩ differential input resistance ensure amplitude/phase balance <0.1%, minimizing residual common-mode error. |
Use Scenario: Interfacing passive or active antialiasing filters (e.g., 2nd-order Butterworth) to differential-input ADCs in spectrum analyzers. IC Role / Device Role / Timing Role: THS4130IDRG4 buffers filter output while maintaining impedance match and rejecting ground bounce induced by filter's reactive components. Use Value: 170 MHz bandwidth accommodates filter roll-off beyond Nyquist, preserving group delay linearity and preventing passband ripple degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4131IDRG4 | No power-down pin; otherwise identical electrical specs and pinout. | Not suitable for power-gated systems requiring standby mode; eliminates PD routing complexity in always-on designs. | Select THS4131IDRG4 when power-down functionality is unnecessary and board space allows omission of PD control logic. |
| ADA4941-1ARMZ | Lower bandwidth (35 MHz), higher input bias current (±3.5 µA), no VOCM pin - uses fixed internal common-mode reference. | Better suited for low-power, DC-coupled precision applications (e.g., weigh scales) rather than high-frequency ADC driving. | Choose ADA4941-1ARMZ only for cost-sensitive, low-bandwidth (<10 MHz) systems where VOCM flexibility is not required. |
Compared with THS4131IDRG4 and ADA4941-1ARMZ, the THS4130IDRG4 uniquely combines high-speed performance, active power management, and user-configurable VOCM - making it the only option among the three capable of meeting dynamic range and power cycling requirements in portable ultrasound and high-channel-count DAQ systems.
Availability
THS4130IDRG4 is available at Aetrix Electronics and suitable for medical imaging systems, high-resolution data acquisition, and industrial test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for THS4130IDRG4 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 product line was engineered specifically for demanding differential signal chain applications - including ultrasound, communications infrastructure, and precision instrumentation - where low noise, high speed, and robust common-mode rejection are mandatory.
FAQ
What is the function of the VOCM pin on the THS4130IDRG4?
The VOCM (Voltage Output Common-Mode) pin on the THS4130IDRG4 sets the DC midpoint voltage of the differential output pair (VOUT+ and VOUT−). Applying a precise voltage - such as mid-rail (e.g., 2.5 V for 5 V supply) - ensures optimal alignment with downstream ADC input ranges. Leaving VOCM floating defaults to (VCC+ + VCC−)/2, but a 0.1 µF bypass capacitor is required to minimize noise coupling into the output common-mode path. This feature is integral to the THS4130IDRG4's role in precision signal conditioning.
Does the THS4130IDRG4 support single-supply operation?
Yes, the THS4130IDRG4 supports single-supply operation from 5 V to 30 V. In this mode, VCC− is connected to ground, and VOCM is typically biased to half the supply (e.g., 2.5 V for 5 V) to center the differential output swing. Input common-mode range extends from –3.77 V to 4.3 V relative to ground, allowing direct interfacing with sensors or DACs referenced to ground or other rails. This capability is explicitly specified in the THS4130IDRG4's Recommended Operating Conditions table.
How does the power-down feature work on the THS4130IDRG4?
The THS4130IDRG4 features an active-low PD (Power-Down) pin (Pin 7). Pulling PD to VCC− disables the amplifier and reduces quiescent current to 0.86 mA (typical), while outputs enter a high-impedance state (>1 MΩ). An internal 250 kΩ pull-up to VCC+ keeps the device active if PD is left unconnected. The threshold is ~1.4 V above VCC−, so for ±15 V supplies, PD must be ≤ –13.6 V to activate shutdown. This behavior is confirmed in Section 8.4.1 of the THS4130IDRG4 datasheet.
What package type is used for the THS4130IDRG4?
The THS4130IDRG4 uses the 8-pin HVSSOP (PowerPAD™) package, identified by the DGN suffix. This thermally enhanced package includes an exposed metal thermal pad on the underside, which must be soldered to a large PCB copper area to achieve RθJB = 30.0°C/W. Unlike SOIC or VSSOP variants, the HVSSOP variant provides superior thermal performance critical for sustained high-output-current operation in compact medical and test equipment enclosures - a defining characteristic of the THS4130IDRG4 ordering option.
Can the THS4130IDRG4 drive heavy capacitive loads?
The THS4130IDRG4 is not optimized for direct capacitive loading >10 pF due to reduced phase margin. To maintain stability, a series isolation resistor (≥20 Ω) must be placed between each output and the load capacitance, as shown in Figure 9-1 of the THS4130IDRG4 datasheet. This resistor decouples the amplifier from the load's reactive impedance, preventing high-frequency ringing or oscillation. For 50 Ω systems, a 50 Ω series resistor also provides source-end impedance matching - a requirement validated in THS4130IDRG4's Typical Characteristics section (Figure 7-14).
THS4130IDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
THS4130IDRG4 FAQ
1.How can I place an order for THS4130IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4130IDRG4 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 THS4130IDRG4 reliable?
The price and inventory of THS4130IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4130IDRG4 is usually 5 days.
3.What payment methods are accepted for THS4130IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4130IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4130IDRG4?
THS4130IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4130IDRG4 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 THS4130IDRG4?
For technical support, including THS4130IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4130IDRG4 requirements.
6.How does Aetrix verify that THS4130IDRG4 is sourced from the original manufacturer or authorized distributors?
All THS4130IDRG4 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 THS4130IDRG4 meets industry standards.
7.What is the process for return or replacement of THS4130IDRG4?
All THS4130IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with THS4130IDRG4, 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 THS4130IDRG4 part is unused and in its original packaging.
Return procedure for THS4130IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
THS4130IDRG4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
