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Texas Instruments OPA182IDBVT
- Part No.:
- OPA182IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA182IDBVT.pdf
- Description:
- HIGHEST-PRECISION, 36-V, 5-MHZ,
- Quantity:
- Payment:
- Shipping:
Inventory:114
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Product details
Overview
OPA182IDBVT from Texas Instruments is a single-channel, zero-drift, rail-to-rail output precision operational amplifier optimized for high-accuracy signal conditioning in multichannel data acquisition systems. It delivers 4 µV maximum input offset voltage, 0.003 µV/°C drift, 5.7 nV/√Hz input voltage noise at 1 kHz, 5 MHz gain bandwidth, and MUX-friendly inputs that suppress inrush current during channel switching - enabling stable performance in battery test equipment and weigh scale front-ends.
For engineers reviewing the OPA182IDBVT datasheet, OPA182IDBVT pinout, OPA182IDBVT application, or OPA182IDBVT equivalent, this page provides verified technical context, package-specific pin functions, real-world application mappings, and validated alternative options for precision analog signal chains requiring low drift, low noise, and robust multiplexer interface behavior.
Technical Context
The OPA182IDBVT implements a proprietary auto-zeroing architecture with ripple reduction technology to eliminate chopper-induced glitches while maintaining near-zero flicker noise and ultra-stable dc precision. Its MUX-friendly input stage features controlled start-up and EMI/RFI filtering to prevent transient currents when large differential voltages are applied across inputs during channel scanning.
This device operates from ±2.25 V to ±18 V (or 4.5 V to 36 V single supply), supports rail-to-rail output swing within 15 mV of rails (at no load), and includes phase-reversal protection - ensuring reliable operation even when inputs exceed common-mode limits. It is specified over –40°C to +125°C and qualified for industrial and test equipment use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±4 µV maximum - enables sub-16-bit accuracy without calibration in 24-bit DAQ systems. |
| Offset Drift | 0.003 µV/°C - ensures <1 µV total drift over –40°C to +125°C, critical for unattended long-term measurements. |
| Gain Bandwidth | 5 MHz - supports fast settling (1.7 µs to 0.01%) for high-throughput sampling in automated test equipment. |
| Input Voltage Noise | 5.7 nV/√Hz at 1 kHz; 0.12 µVPP (0.1–10 Hz) - preserves SNR in low-frequency sensor interfaces like strain gauges. |
| CMRR | 168 dB - rejects >99.9999% of common-mode interference in noisy industrial environments. |
| Supply Range | ±2.25 V to ±18 V - accommodates both low-voltage portable instruments and high-voltage power supply monitoring. |
| Quiescent Current | 0.85 mA - balances precision and power efficiency in battery-powered test gear. |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, surface-mount, thermally enhanced for compact PCB layouts in space-constrained instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Rail-to-rail output capable of sourcing/sinking ±65 mA; settles to 0.01% in 1.7 µs on 10-V step. |
| 2 - V– | Negative Supply | Accepts –2.25 V to –18 V; supports true dual-supply operation and negative rail input capability. |
| 3 - +IN | Noninverting Input | High-impedance CMOS input (60 TΩ || 2.3 pF); includes EMI/RFI filtering and phase-reversal protection. |
| 4 - –IN | Inverting Input | MUX-friendly architecture prevents inrush current during large differential input transitions in multiplexed systems. |
| 5 - V+ | Positive Supply | Accepts +2.25 V to +18 V; internal regulation ensures stable bias under supply ripple up to 100 mVpp. |
Key Features
| Feature | Design Value |
|---|---|
| MUX-friendly inputs | Eliminates input-stage inrush current during channel switching, preventing settling errors in multichannel DAQ systems. |
| Rail-to-rail output | Swings within 15 mV of supply rails (no load), maximizing dynamic range in single-supply 3.3 V or 5 V systems. |
| Zero-drift architecture | 0.003 µV/°C drift and ±4 µV max offset ensure stable calibration over temperature and time without periodic recalibration. |
| EMI/RFI filtered inputs | Integrated filtering suppresses high-frequency interference from switching power supplies or radio transceivers. |
| Phase-reversal protection | Prevents output polarity inversion when inputs exceed common-mode range - critical for fault-tolerant sensor interfaces. |
Applications
| Battery Test Equipment | Data Acquisition (DAQ) Systems |
|---|---|
|
Use Scenario: Precision voltage/current measurement during charge/discharge cycling of Li-ion cells under varying temperature and load conditions. IC Role / Device Role / Timing Role: Front-end signal conditioner for shunt-based current sensing and cell voltage monitoring, operating in multiplexed 16-channel configurations. Use Value: 0.003 µV/°C drift and MUX-friendly inputs enable <±10 µV measurement stability across –20°C to +60°C without per-channel calibration. |
Use Scenario: High-resolution analog input module acquiring signals from thermocouples, RTDs, and bridge sensors in industrial PLCs. IC Role / Device Role / Timing Role: Programmable-gain amplifier (PGA) buffer and anti-aliasing driver for 24-bit sigma-delta ADCs. Use Value: 5.7 nV/√Hz noise and 168 dB CMRR preserve effective resolution in noisy factory-floor environments with shared ground paths. |
| Weigh Scale Electronics | Analog Input Modules |
|
Use Scenario: Strain gauge signal amplification in platform scales and industrial load cells requiring legal-for-trade metrology compliance. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier front-end with programmable gain and offset trimming. Use Value: 0.12 µVPP (0.1–10 Hz) noise and rail-to-rail output maximize usable range from 20 mV full-scale bridge outputs. |
Use Scenario: Modular I/O card supporting multiple sensor types (voltage, current, resistance) in building automation and energy metering. IC Role / Device Role / Timing Role: Universal analog signal conditioner with configurable input topology (single-ended/differential) and gain settings. Use Value: ±18 V supply range and –40°C to +125°C operation allow deployment in wide-temperature outdoor enclosures and HVAC control panels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2188IDBVT | 6 µV max offset, 0.03 µV/°C drift, 8.8 nV/√Hz noise, same SOT-23-5 package | Lower cost but higher drift/noise - suitable for 16-bit systems where calibration is routine | Choose when budget constraints outweigh need for ultra-low drift in uncalibrated field deployments. |
| OPA2189IDBVT | 0.4 µV max offset, 0.005 µV/°C drift, 5.2 nV/√Hz noise, same SOT-23-5 package | Superior dc precision and lower noise - requires tighter layout control due to higher gain-bandwidth (8 MHz) | Choose for next-generation 24-bit DAQ where ultimate offset stability and noise floor are mandatory. |
Compared with OPA182IDBVT, OPA2188IDBVT trades dc precision for cost savings in calibrated systems, while OPA2189IDBVT delivers higher baseline accuracy at increased sensitivity to PCB parasitics - making OPA182IDBVT the optimal balance of performance, robustness, and ease of integration in industrial signal chains.
Availability
OPA182IDBVT is available at Aetrix Electronics and suitable for battery test equipment, industrial data acquisition systems, and precision weigh scale electronics requiring stable component supply across extended product lifecycles.
Supply support for OPA182IDBVT 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 amplifiers and industrial-grade signal chain solutions.
The OPAx182 family was designed specifically for high-accuracy, multiplexed analog front-ends in automated test equipment, process control, and metrology - emphasizing zero-drift stability, MUX compatibility, and robust EMI immunity.
FAQ
What is the maximum operating temperature range for the OPA182IDBVT?
The OPA182IDBVT is fully specified from –40°C to +125°C ambient temperature. This extended industrial temperature range ensures reliable operation in harsh environments such as factory-floor PLC modules, outdoor energy meters, and automotive battery test rigs where thermal stress is significant. All key parameters-including offset drift, CMRR, and noise-are guaranteed across this full range.
Does the OPA182IDBVT support single-supply operation?
Yes, the OPA182IDBVT supports true single-supply operation from 4.5 V to 36 V. Its rail-to-rail output and input common-mode range extending to the negative rail (V–) enable direct interfacing with sensors referenced to ground, such as bridge circuits and current-sense shunts. No level-shifting circuitry is required in 5 V or 12 V systems.
How does the MUX-friendly architecture of the OPA182IDBVT improve multichannel system performance?
The MUX-friendly architecture of the OPA182IDBVT eliminates input-stage inrush current when large differential voltages are applied during channel switching-preventing transient errors and reducing settling time in multiplexed DAQ systems. This allows faster scan rates without sacrificing accuracy, especially in 16+ channel configurations used in semiconductor test and battery formation systems.
What is the typical quiescent current of the OPA182IDBVT at ±15 V supply?
The OPA182IDBVT draws 0.85 mA typical quiescent current per amplifier at 25°C and ±15 V supply. At full temperature range (–40°C to +125°C), quiescent current remains below 1.1 mA, making it suitable for portable and thermally constrained instrumentation where power dissipation must be tightly managed without compromising precision.
Can the OPA182IDBVT drive capacitive loads directly?
The OPA182IDBVT can drive moderate capacitive loads, but its stability depends on configuration and external isolation. The datasheet specifies capacitive load drive capability in typical characteristics (Figure 7-25/7-26), showing stable operation up to ~100 pF with appropriate series resistance (e.g., 25 Ω). For larger loads (>500 pF), an external isolation resistor or buffer stage is recommended to maintain phase margin and prevent peaking.
OPA182IDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Zero-Drift
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 pA
- Voltage - Input Offset:
- 0.45 µV
- Current - Supply:
- 850µA
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
OPA182IDBVT FAQ
1.How can I place an order for OPA182IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA182IDBVT 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 OPA182IDBVT reliable?
The price and inventory of OPA182IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA182IDBVT is usually 5 days.
3.What payment methods are accepted for OPA182IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA182IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA182IDBVT?
OPA182IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA182IDBVT 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 OPA182IDBVT?
For technical support, including OPA182IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA182IDBVT requirements.
6.How does Aetrix verify that OPA182IDBVT is sourced from the original manufacturer or authorized distributors?
All OPA182IDBVT 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 OPA182IDBVT meets industry standards.
7.What is the process for return or replacement of OPA182IDBVT?
All OPA182IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA182IDBVT, 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 OPA182IDBVT part is unused and in its original packaging.
Return procedure for OPA182IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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