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Texas Instruments OPA130UA
- Part No.:
- OPA130UA
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA130UA.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,039
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Product details
Overview
OPA130UA 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, and 1 mV max input offset voltage, enabling accurate amplification in battery-powered instrumentation and sensor front-ends.
For engineers reviewing the OPA130UA datasheet, OPA130UA pinout, OPA130UA application, or OPA130UA 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 at ±15 V supply), and SOIC-8 package compatibility with space-constrained PCB layouts.
Technical Context
The OPA130UA employs a cascoded FET input stage that maintains ultra-low input bias current (<20 pA) across its full common-mode range (–13 V to +13 V with ±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 output short-circuit protection, and exhibits no phase reversal when input common-mode limits are exceeded-unlike many legacy FET op amps. Thermal performance is characterized up to +125°C junction temperature, with θJA = 150°C/W in SOIC-8.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.25 V to ±18 V - supports dual-supply systems from low-voltage portable gear to industrial ±15 V rails |
| Quiescent Current | 530 µA per amplifier - enables multi-stage signal chains in battery-operated devices with >1-year runtime |
| Input Offset Voltage | ±1 mV max - reduces DC error in precision transducer amplifiers without trimming in most applications |
| Gain-Bandwidth Product | 1 MHz - sufficient for anti-aliasing filters, sensor amplification, and low-frequency active filtering |
| Input Bias Current | 20 pA max at +25°C - preserves signal integrity with >100 MΩ source impedances (e.g., pH electrodes, piezoelectric sensors) |
| Capacitive Load Drive | Stable with ≥10 nF - eliminates need for isolation resistors when driving ADC input capacitance or long cables |
| Common-Mode Rejection | 90 dB min - rejects noise in differential-sensing configurations with mismatched trace lengths or ground offsets |
Pinout & Package
OPA130UA is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package per JEDEC MS-012 variation AA, with 1.27 mm lead pitch and 1.75 mm maximum height. The package is RoHS-compliant, green (low-halogen), and rated MSL Level-3 (260°C peak reflow).
| Pin | 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) | Differential input node; high-impedance FET gate connection requiring guard traces in high-Z designs |
| 3 | Non-Inverting Input (+In) | Differential input node; matched to Pin 2 for common-mode rejection; sensitive to ESD |
| 4 | V– (Negative Supply) | Return path for negative rail; must be decoupled with 10 nF ceramic capacitor near the pin |
| 5 | Offset Trim (+) | Connects to one end of 100 kΩ potentiometer; enables fine adjustment of input offset voltage |
| 6 | Output | Class AB output stage capable of ±13 V swing into 2 kΩ load with ±15 V supplies |
| 7 | V+ (Positive Supply) | Power input for positive rail; requires local 10 nF ceramic bypass to minimize PSR degradation |
| 8 | No Connect (NC) | Internally unconnected; must remain floating-no routing or grounding permitted |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on common-mode overrange | Eliminates catastrophic control loop failure in voltage-follower configurations when inputs exceed rails |
| Laser-trimmed input offset voltage | Reduces system-level calibration burden; typical drift <2 µV/°C minimizes thermal error in wide-temperature deployments |
| FET input with cascode architecture | Maintains ≤20 pA bias current across –13 V to +13 V common-mode range-critical for charge-integration circuits |
| Unity-gain stable with high capacitive loads | Drives 10 nF directly without external compensation-enables direct interface to SAR ADC sample capacitors |
| High open-loop gain (120 dB min) | Ensures <0.01% gain error in closed-loop gains up to 100×, even with 10 kΩ feedback networks |
Applications
| Portable Medical Sensors | Industrial Process Transmitters |
|---|---|
|
Use Scenario: Amplifying microvolt-level signals from thermocouples and strain gauges in handheld diagnostic tools. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with ultra-low input bias current to prevent signal corruption from high source impedance. Use Value: 20 pA max input bias current avoids loading of >100 MΩ sensor elements; 1 mV offset enables sub-0.1°C resolution without software correction. |
Use Scenario: Conditioning 4–20 mA loop sensor outputs in hazardous-area field transmitters. IC Role / Device Role / Timing Role: Input buffer and level-shifting amplifier operating from isolated ±15 V supplies in analog front-end modules. Use Value: ±18 V supply tolerance accommodates industrial power variations; 90 dB CMRR rejects common-mode noise from motor drives and RF interference. |
| Battery-Powered Data Loggers | High-Impedance Electrochemical Sensors |
|
Use Scenario: Signal conditioning for multi-channel environmental monitoring nodes powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-quiescent-current amplifier in sensor interface chain, enabling multi-year operation on 230 mAh cells. Use Value: 530 µA quiescent current per amplifier allows >1000 hours of continuous sampling at 1 Hz; SOIC-8 footprint fits compact PCBs. |
Use Scenario: Front-end amplification for pH electrodes and ion-selective sensors in lab analyzers. IC Role / Device Role / Timing Role: Ultra-high-impedance buffer isolating fragile glass electrode outputs from downstream circuitry. Use Value: Input impedance >1013 Ω prevents electrode polarization; absence of phase reversal avoids false fault detection during transient overvoltage events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision FET-input operational amplifier 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-Z sources (>1 GΩ) and higher-speed precision filtering; less suitable for sub-1 mA power budgets | Select OPA140AIDBVR only when bias current <1 pA is mandatory and supply current >1 mA is acceptable. |
| ADA4625-1ARZ | Higher slew rate (34 V/µs), lower noise (4.7 nV/√Hz), but wider supply range (±4.5 V to ±18 V) and no offset trim pins | Preferred for fast-settling, low-noise applications like photodiode TIA; lacks OPA130UA's dedicated trim capability | Choose ADA4625-1ARZ when bandwidth >10 MHz or voltage noise <5 nV/√Hz is required; retain OPA130UA for trimmable DC precision. |
Compared with OPA140AIDBVR and ADA4625-1ARZ, the OPA130UA uniquely balances ultra-low power (530 µA), trimmable offset, and guaranteed phase-reversal immunity-making it the optimal choice for cost-sensitive, battery-powered precision analog systems where DC accuracy and reliability outweigh raw speed or noise performance.
Availability
OPA130UA is available at Aetrix Electronics and suitable for portable medical sensors, industrial process transmitters, and battery-powered data loggers requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for OPA130UA 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 OPA130UA belongs to TI's OPA130 series of FET-input op amps, engineered specifically for low-power, high-impedance signal conditioning in portable, battery-operated, and general-purpose instrumentation applications.
FAQ
What is the maximum capacitive load the OPA130UA can drive while remaining stable?
The OPA130UA is specified for stable operation with capacitive loads up to 10 nF without external compensation. This capability enables direct connection to ADC input capacitors and long PCB traces without risk of oscillation. Stability is verified under unity-gain conditions with ±15 V supplies and 10 kΩ load resistance, per the SBOS053A datasheet Figure 12 and Electrical Characteristics table.
Does the OPA130UA require external offset voltage trimming in typical applications?
No-OPA130UA features laser-trimmed input offset voltage (±1 mV max), eliminating the need for external trimming in most precision applications. Pins 1 and 5 are provided for optional fine adjustment using a 100 kΩ potentiometer, but this is recommended only for systems demanding sub-100 µV residual offset after calibration. Standard use leaves these pins unconnected.
Can the OPA130UA operate from a single +5 V supply?
Yes-the OPA130UA supports single-supply operation down to +4.5 V total (i.e., +4.5 V and ground), as its minimum specified supply is ±2.25 V. When used with +5 V and ground, the input common-mode range extends from +2 V to +3.5 V, and output swing reaches approximately +0.5 V to +4.5 V into 10 kΩ. Decoupling and proper biasing are essential for stable performance.
Is the OPA130UA pin-compatible with other op amps in the same SOIC-8 package?
No-OPA130UA has a unique pinout among TI's precision op amps: Pin 1 and Pin 5 are dedicated offset trim terminals, and Pin 8 is NC (no connect). This differs from industry-standard SOIC-8 op amps like LM358 or TL072, which use all eight pins for signal or power functions. Direct replacement requires PCB layout revision.
What is the operating temperature range for the OPA130UA, and how does performance change at extremes?
The OPA130UA is specified for operation from –40°C to +85°C ambient, with extended characterization to +125°C junction temperature. Key parameters shift predictably: input bias current increases to ~100 pA at +125°C, quiescent current rises to ~650 µA, and open-loop gain remains ≥120 dB across the full range. These shifts are documented in the SBOS053A Typical Characteristics curves.
OPA130UA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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 FAQ
1.How can I place an order for OPA130UA through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA130UA 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 reliable?
The price and inventory of OPA130UA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA130UA is usually 5 days.
3.What payment methods are accepted for OPA130UA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA130UA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA130UA?
OPA130UA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA130UA 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?
For technical support, including OPA130UA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA130UA requirements.
6.How does Aetrix verify that OPA130UA is sourced from the original manufacturer or authorized distributors?
All OPA130UA 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 meets industry standards.
7.What is the process for return or replacement of OPA130UA?
All OPA130UA units undergo pre-shipment inspection (PSI). If there is an issue with OPA130UA, 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 part is unused and in its original packaging.
Return procedure for OPA130UA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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