THS3125IPWP Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
THS3125IPWP is a dual-channel, high-output-current current-feedback operational amplifier from Texas Instruments with 138 MHz bandwidth and shutdown capability. Each channel delivers high drive current with 63 dB minimum CMRR, operating from -40 °C to +85 °C in a TSSOP package. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- THS3125IPWP Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $12.4100(MOQ 13)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of THS3125IPWP?
- Dual-channel current-feedback architecture with 138 MHz -3 dB bandwidth per channel enables simultaneous dual-lane wideband signal amplification in video distribution and communications infrastructure
- Hardware shutdown pin per channel reduces supply current to near zero when unused, allowing power-managed designs to disable inactive channels and extend battery life in portable instruments
- High output current drive capability supports direct back-termination of 75 Ω coaxial cables and low-impedance ADC inputs without external buffers, reducing component count
- 63 dB minimum CMRR (67 dB typical) and 2 µA maximum input bias current deliver accurate differential signal amplification with minimal offset drift in industrial -40 °C to +85 °C environments
- Integrated frequency compensation with recommended feedback resistor range eliminates external phase-margin capacitors, shortening design cycle for multi-channel video and IF amplifier boards
What is THS3125IPWP used for?
THS3125IPWP is designed for dual-channel video line driving, CATV amplifier modules, and IF signal distribution systems where two independent high-bandwidth amplifier channels in a single package reduce board area and simplify layout. Its per-channel shutdown capability makes it ideal for power-managed base-station receiver front-ends and multichannel test instruments that dynamically enable or disable signal paths without powering down the entire analog chain. The 138 MHz bandwidth and high output current also suit high-speed differential ADC driver stages in data acquisition cards and software-defined radio platforms operating across the industrial temperature range.
What are the specifications of THS3125IPWP?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | CURRENT-FEEDBACK |
| Average Bias Current-Max (IIB) | 2 µA |
| Bandwidth (3dB)-Nom | 138MHz |
| Bias Current-Max (IIB) @25C | 2 µA |
| Common-mode Reject Ratio-Min | 63dB |
| Common-mode Reject Ratio-Nom | 67dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 22 µA |
| Input Offset Voltage-Max | 10000 µV |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | NO |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -16.5 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 1550V/us |
| Subcategory | Operational Amplifier |
| Supply Current-Max | 9mA |
| Supply Voltage Limit-Max | 16.5V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 138000 |
| Wideband | YES |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Taiwan |
Where can I find the THS3125IPWP datasheet?
THS3125IPWP Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for THS3125IPWP?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does THS3125IPWP achieve 138 MHz bandwidth across different closed-loop gain settings compared to a voltage-feedback dual amplifier?
THS3125IPWP uses a current-feedback topology where bandwidth depends primarily on the feedback resistor value rather than closed-loop gain, maintaining approximately 138 MHz at gains from 1 V/V to 10 V/V when the feedback resistor is kept within the recommended 560 Ω to 1 kΩ range. A comparable dual voltage-feedback amplifier with 138 MHz unity-gain bandwidth would fall to only 14 MHz at a gain of 10 V/V due to the fixed gain-bandwidth product constraint, making THS3125IPWP preferable for multi-gain-stage IF amplifier chains.
What power saving does the per-channel shutdown feature of THS3125IPWP provide in a battery-operated dual-channel instrument?
When a channel of THS3125IPWP is placed in shutdown via its dedicated shutdown pin, that channel's supply current drops from a typical active quiescent current of around 7 mA to well below 1 mA, saving roughly 6 mA per disabled channel. In a dual-supply ±5 V system, disabling one channel saves approximately 60 mW of continuous dissipation, extending battery runtime by up to 15 % in a portable 400 mAh battery-powered instrument where the amplifier stage is a significant power consumer.
For a dual ADSL line driver application, how should the two channels of THS3125IPWP be configured to drive a 100 Ω differential line?
Each channel of THS3125IPWP should be configured with a 50 Ω series output resistor, combining to present a 100 Ω source impedance to the differential line. With the channels running as an inverting and non-inverting pair at a closed-loop gain magnitude of 2 V/V and a differential output swing of ±2 V, the effective output power into 100 Ω is 20 mW. The 138 MHz bandwidth per channel covers the full ADSL downstream spectrum of 25 kHz to 1.1 MHz with over 40 dB of headroom, and the 63 dB CMRR suppresses common-mode interference from adjacent twisted pairs in the same cable bundle.
How does the 2 µA maximum input bias current of THS3125IPWP affect DC accuracy in a transimpedance amplifier front-end?
In a transimpedance amplifier using a 10 kΩ feedback resistor, the 2 µA maximum input bias current of THS3125IPWP generates a worst-case DC output offset of 2 µA × 10 kΩ = 20 mV. For a photodetector front-end with a full-scale output of 1 V, this represents a 2 % offset that may require trimming or AC coupling. Reducing the feedback resistor to 1 kΩ drops the bias-current-induced offset to only 2 mV, well below the 12-bit ADC LSB at 2.4 µV/LSB for a ±5 V range, enabling direct DC-coupled digitization without offset correction.
In a CATV distribution amplifier, when would THS3125IPWP be selected over a single-channel high-current amplifier for cost and board area reasons?
THS3125IPWP integrates 2 independent 138 MHz channels with independent shutdown pins in a single TSSOP-14 footprint of approximately 5 mm × 4.4 mm, versus two separate single-channel amplifiers each in an SO-8 package totaling roughly 60 mm² of PCB area. The dual integration reduces board area by about 30 % and cuts the passive component count by sharing a common decoupling network, making THS3125IPWP the preferred choice in 4-port or 8-port CATV splitter PCBs where channel density above 2 amplifiers per cm² is required at cable frequencies up to 120 MHz.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
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| 270+ | $13.7000 | $3699.00 |
| 540+ | $12.8000 | $6912.00 |
| 1350+ | $12.4100 | $16753.50 |
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