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Texas Instruments OPA130UA/2K5
- Part No.:
- OPA130UA/2K5
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA130UA/2K5.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,223
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Product details
Overview
OPA130UA/2K5 from Texas Instruments is a single-channel, precision FET-input operational amplifier optimized for low-power, high-impedance signal conditioning. It delivers 1 MHz gain-bandwidth, 530 µA quiescent current per amplifier, ±1 mV max input offset voltage, and 120 dB open-loop gain - enabling accurate amplification in battery-powered instrumentation, sensor front-ends, and portable data acquisition systems.
For engineers reviewing the OPA130UA/2K5 datasheet, OPA130UA/2K5 pinout, OPA130UA/2K5 application, or OPA130UA/2K5 equivalent, key selection considerations include its FET-input bias current (≤20 pA), unity-gain stability with ≥10 nF capacitive load drive, rail-to-rail output swing limitations (±1.5 V from rails), and SOIC-8 package compatibility with space-constrained PCB layouts.
Technical Context
The OPA130UA/2K5 employs an input cascode architecture that maintains ultra-low input bias current (<20 pA) across its full common-mode range (–13 V to +13 V at ±15 V supplies) while delivering 90 dB minimum CMRR and 120 dB open-loop gain. Its internal compensation ensures unity-gain stability without external components.
It operates from ±2.25 V to ±18 V supplies, supports 100 pF load capacitance with ≤7 µs 0.01% settling time, and features no phase inversion - eliminating output polarity reversal during common-mode overvoltage events common in FET-input op amps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.25 V to ±18 V - supports dual-supply operation in industrial and portable systems with wide rail flexibility. |
| Input Offset Voltage | ±1 mV max - enables DC-critical applications like precision transducer amplification without calibration. |
| Quiescent Current | 530 µA per amplifier - allows multi-stage low-power signal chains in battery-operated devices. |
| Gain-Bandwidth Product | 1 MHz - sufficient for anti-aliasing filters, sensor buffering, and audio preamplification up to ~100 kHz. |
| Input Bias Current | 20 pA max - preserves signal integrity when interfacing with high-impedance sources (e.g., pH electrodes, piezoelectric sensors). |
| Common-Mode Rejection | 90 dB min - rejects noise in differential sensing configurations with mismatched source impedances. |
| Capacitive Load Drive | Stable with ≥10 nF - simplifies driving ADC input buffers or long traces without isolation resistors. |
Pinout & Package
OPA130UA/2K5 is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package per JEDEC MS-012 variation AA, with 1.27 mm lead pitch, 3.91 mm body width, and 1.75 mm maximum height. Pin 1 is marked by a beveled corner or dot; the device is RoHS-compliant with NiPdAu lead finish and MSL Level-3 moisture sensitivity rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Trim (–) | Connects to wiper of 100 kΩ potentiometer for laser-trimmed offset nulling; not used in standard configurations. |
| 2 | Inverting Input (–In) | High-impedance FET node; accepts differential or single-ended signals with minimal loading. |
| 3 | Non-Inverting Input (+In) | High-impedance FET node; used for unity-gain buffer or non-inverting amplifier configurations. |
| 4 | V– (Negative Supply) | Connects to negative rail; must be bypassed with ≥10 nF ceramic capacitor near the pin. |
| 5 | Offset Trim (+) | Connects to one end of 100 kΩ potentiometer; completes offset adjustment circuit with Pin 1. |
| 6 | Output | Capable of ±13.8 V swing into 10 kΩ load at ±15 V supplies; drives capacitive loads up to 10 nF stably. |
| 7 | V+ (Positive Supply) | Connects to positive rail; requires local 10 nF ceramic decoupling for stable high-frequency performance. |
| 8 | NC | No internal connection; left unconnected per TI design - not usable as thermal pad or auxiliary function. |
Key Features
| Feature | Design Value |
|---|---|
| No phase inversion | Eliminates output polarity reversal during input common-mode overvoltage - critical for closed-loop stability in sensor interfaces. |
| Laser-trimmed offset | ±1 mV max input offset voltage achieved via on-die trimming - reduces system-level calibration burden. |
| FET input stage | 20 pA max input bias current at 25°C - preserves accuracy when amplifying signals from >1 GΩ source impedances. |
| Unity-gain stable | Operates without external compensation at gain = 1 - simplifies design of voltage followers and active filters. |
| Wide supply range | ±2.25 V to ±18 V operation - supports both low-voltage portable systems and industrial ±15 V legacy designs. |
Applications
| Portable Medical Sensors | Industrial Process Transmitters |
|---|---|
|
Use Scenario: Amplifying low-level signals from electrochemical sensors (e.g., blood glucose strips, pH probes) in handheld diagnostic devices. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with ultra-low input bias current to prevent sensor polarization errors. Use Value: 20 pA max input bias current avoids measurement drift in high-impedance electrochemical cells; 530 µA quiescent current extends battery life beyond 100 hours per charge. |
Use Scenario: Signal conditioning for 4–20 mA loop-powered temperature/pressure transmitters in factory automation. IC Role / Device Role / Timing Role: High-CMRR instrumentation amplifier front-end rejecting common-mode noise on long sensor cables. Use Value: 90 dB min CMRR suppresses 50/60 Hz interference from adjacent motor drives; ±18 V supply tolerance accommodates wide loop compliance margins. |
| Audio Line-Level Preamps | Battery-Powered Data Loggers |
|
Use Scenario: Low-noise microphone or line-level signal buffering in portable audio recorders and mixers. IC Role / Device Role / Timing Role: Unity-gain stable FET-input buffer isolating high-impedance sources from downstream stages. Use Value: 16 nV/√Hz input voltage noise at 1 kHz ensures clean audio capture; no phase inversion prevents clipping artifacts during transient overload. |
Use Scenario: Analog front-end for multi-channel environmental monitoring (temperature, humidity, gas) in remote field deployments. IC Role / Device Role / Timing Role: Low-power sensor interface amplifier multiplexed across multiple channels to minimize total system current. Use Value: 530 µA per amplifier enables 16-channel analog acquisition with <10 mA total bias current; SOIC-8 footprint allows dense layout on compact PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision FET-input op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA140AIDBVR | Lower input bias current (0.5 pA typ), higher GBP (11 MHz), but higher quiescent current (1.5 mA). | Better for ultra-high-impedance photodiode or piezoelectric sensors; less suitable for sub-1 mA battery budgets. | Select OPA140AIDBVR only when input bias current <1 pA is mandatory and power budget allows ≥2× increase. |
| TL071CP | Higher input bias current (30 pA typ), lower GBP (3 MHz), no guaranteed phase-inversion immunity, wider offset spread (±10 mV). | Acceptable for cost-sensitive audio or non-critical analog functions where precision and reliability are secondary. | Choose TL071CP only for legacy designs or non-battery applications where OPA130UA/2K5's 1 mV offset and phase-inversion immunity are not required. |
Compared with OPA140AIDBVR, OPA130UA/2K5 trades bandwidth and ultra-low bias current for significantly lower power and proven phase-inversion immunity; versus TL071CP, it delivers tighter DC specs and guaranteed robustness in high-impedance feedback loops - making it the balanced choice for portable precision analog systems.
Availability
OPA130UA/2K5 is available at Aetrix Electronics and suitable for portable medical diagnostics, industrial process transmitters, and battery-powered data loggers requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for OPA130UA/2K5 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 precision op amp design and manufacturing.
The OPA130 series belongs to TI's precision FET-input op amp product line, engineered specifically for low-power, high-impedance signal conditioning in portable, battery-operated, and general-purpose instrumentation applications.
FAQ
What is the operating temperature range for OPA130UA/2K5?
The OPA130UA/2K5 is specified for operation from –40°C to +125°C ambient temperature, with production testing performed across this full industrial range. Its electrical characteristics - including input offset voltage drift (±2 µV/°C max) and quiescent current stability - remain within datasheet limits throughout this span, making OPA130UA/2K5 suitable for under-hood automotive sensors and outdoor industrial equipment.
Does OPA130UA/2K5 require external compensation for unity-gain stability?
No, OPA130UA/2K5 is internally compensated for unity-gain stability and does not require external components to maintain phase margin. It remains stable driving capacitive loads up to 10 nF directly, unlike many FET-input op amps that oscillate or ring at gain = 1 without added isolation resistance - a key reliability advantage of OPA130UA/2K5 in sensor buffer and voltage-follower applications.
Can OPA130UA/2K5 replace OPA130UA in existing designs?
Yes, OPA130UA/2K5 is a tape-and-reel variant of the same SOIC-8 device as OPA130UA, sharing identical electrical specifications, pinout, thermal performance, and marking (OPA130UA). The "/2K5" suffix denotes a 2500-unit reel packaging option - OPA130UA/2K5 is a direct form-fit-function replacement for OPA130UA in automated SMT assembly lines.
What is the maximum capacitive load OPA130UA/2K5 can drive without instability?
OPA130UA/2K5 is characterized for stable operation with capacitive loads up to 10 nF, as confirmed in the Electrical Characteristics table and Typical Characteristics plots. Driving larger loads (e.g., >20 nF) may cause peaking or ringing; for such cases, TI recommends adding a small series resistor (10–50 Ω) between the output and load - a design practice validated for OPA130UA/2K5 in high-capacitance ADC driver applications.
Is OPA130UA/2K5 compatible with lead-free reflow processes?
Yes, OPA130UA/2K5 carries a Green (RoHS & no Sb/Br) eco plan with NiPdAu lead finish and JEDEC MSL Level-3 rating (260°C peak, 168-hour floor life), making it fully compatible with standard lead-free reflow profiles. Its SOIC-8 package withstands repeated thermal cycling per IPC-J-STD-020, and TI confirms OPA130UA/2K5 meets all requirements for Pb-free manufacturing without derating.
OPA130UA/2K5 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:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 530µA
- Current - Output / Channel:
- 18 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA130UA/2K5 FAQ
1.How can I place an order for OPA130UA/2K5 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA130UA/2K5 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 OPA130UA/2K5 reliable?
The price and inventory of OPA130UA/2K5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA130UA/2K5 is usually 5 days.
3.What payment methods are accepted for OPA130UA/2K5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA130UA/2K5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA130UA/2K5?
OPA130UA/2K5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA130UA/2K5 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 OPA130UA/2K5?
For technical support, including OPA130UA/2K5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA130UA/2K5 requirements.
6.How does Aetrix verify that OPA130UA/2K5 is sourced from the original manufacturer or authorized distributors?
All OPA130UA/2K5 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 OPA130UA/2K5 meets industry standards.
7.What is the process for return or replacement of OPA130UA/2K5?
All OPA130UA/2K5 units undergo pre-shipment inspection (PSI). If there is an issue with OPA130UA/2K5, 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 OPA130UA/2K5 part is unused and in its original packaging.
Return procedure for OPA130UA/2K5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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