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Texas Instruments OPA180IDBVT
- Part No.:
- OPA180IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA180IDBVT.pdf
- Description:
- IC OPAMP ZER-DRIFT 1CIRC SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,517
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Product details
Overview
OPA180IDBVT from Texas Instruments is a single-channel, zero-drift, rail-to-rail output operational amplifier optimized for precision DC-coupled signal conditioning in industrial and test equipment. It delivers 75 μV max input offset voltage, 0.1 μV/°C drift, 10 nV/√Hz input voltage noise at 1 kHz, ±2 V to ±18 V supply range, and 120 dB open-loop gain - enabling high-accuracy bridge amplifier and strain gauge front-ends.
For engineers reviewing the OPA180IDBVT datasheet, OPA180IDBVT pinout, OPA180IDBVT application, or OPA180IDBVT equivalent, this page provides verified specifications, validated SOT-23-5 pin mapping, real-world use cases in temperature measurement and electronic scales, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The OPA180IDBVT implements TI's proprietary auto-zeroing architecture with dual chopper stages and notch filtering to eliminate 1/f noise and suppress offset drift over time and temperature. Its input stage includes RFI-filtered inputs and supports common-mode voltage down to the negative rail.
It operates across –40°C to +125°C with rail-to-rail output swing (within 18 mV of rails at no load), 2 MHz gain-bandwidth product, and 0.8 V/μs slew rate - balancing precision, speed, and power efficiency (525 μA max quiescent current per amplifier) for low-power, high-stability analog signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 75 μV maximum - ensures ≤0.0075% error in 1-V full-scale precision sensor interfaces |
| Offset Drift | 0.1 μV/°C - maintains sub-12.5 μV total drift over 125°C temperature range |
| Input Voltage Noise | 10 nV/√Hz at 1 kHz - enables low-noise amplification of microvolt-level transducer signals |
| Supply Range | ±2 V to ±18 V (or 4 V to 36 V single-supply) - supports wide-input industrial sensors and battery-powered instrumentation |
| Open-Loop Gain | 120 dB - provides ≥1 million V/V loop gain for stable closed-loop gain accuracy in active filters and precision buffers |
| CMRR | 114 dB - rejects >500,000:1 common-mode interference in unbalanced bridge configurations |
| PSRR | 126 dB - attenuates power supply ripple by >2 million:1, critical for clean operation from noisy DC rails |
| Quiescent Current | 525 μA maximum - allows integration into low-power 3.3-V or 5-V systems without thermal derating |
Pinout & Package
SOT-23-5 (DBV) package: 1.60 mm × 2.90 mm body, surface-mount, moisture-sensitive level 1 (MSL-1), rated for –40°C to +125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Output | Rail-to-rail output capable of sourcing/sinking ±18 mA; swings within 18 mV of rails under no load |
| V– (Pin 2) | Negative Supply | Connect to ground (single-supply) or negative rail (dual-supply); input common-mode extends to this pin |
| +IN (Pin 3) | Noninverting Input | High-impedance (10¹² Ω || 9.5 pF) node; RFI-filtered for EMI robustness in noisy environments |
| –IN (Pin 4) | Inverting Input | Differential input paired with +IN; supports precision feedback networks with <1 nA bias current |
| V+ (Pin 5) | Positive Supply | Accepts up to +18 V (or +36 V single-supply); internal protection limits absolute max to ±20 V |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Eliminates 1/f noise and reduces long-term offset drift to ≤4 μV over 1000 hours at 125°C |
| Rail-to-rail output | Delivers full dynamic range in low-voltage systems: 18-mV headroom at no load enables 3.3-V ADC interfacing |
| RFI-filtered inputs | Integrated input filtering suppresses >60 dB of RF interference up to 1 GHz, improving EMC in industrial enclosures |
| High PSRR & CMRR | 126 dB PSRR and 114 dB CMRR maintain accuracy when powered from shared switch-mode supplies or used with unshielded cables |
| Wide temperature range | Specified from –40°C to +125°C - qualified for automotive under-hood and industrial control cabinet deployment |
| Low input bias current | 250 pA typical - minimizes voltage error across high-impedance sources like thermistors and pH electrodes |
Applications
| Bridge Amplifiers | Strain Gauges |
|---|---|
Use Scenario: Amplifying differential output of Wheatstone bridges in load cells and pressure sensors. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched gain-setting resistors. Use Value: 75 μV max offset and 0.1 μV/°C drift ensure ≤0.01% full-scale error drift over industrial temperature range. | Use Scenario: Signal conditioning for metallic foil or semiconductor strain gauges in structural monitoring. IC Role / Device Role / Timing Role: Low-noise, high-input-impedance buffer and gain stage before 24-bit sigma-delta ADC. Use Value: 10 nV/√Hz noise density preserves microstrain resolution; RFI filtering prevents EMI-induced measurement artifacts. |
| Temperature Measurement | Electronic Scales |
Use Scenario: Linearizing and amplifying outputs from RTDs, thermistors, or thermocouples in HVAC and process control. IC Role / Device Role / Timing Role: Precision voltage follower and programmable-gain stage in analog front-end (AFE). Use Value: Rail-to-rail output drives 3.3-V SAR ADCs directly; 120 dB open-loop gain ensures gain accuracy better than 0.005%. | Use Scenario: Weighing system front-end converting millivolt-level load cell outputs to digital values. IC Role / Device Role / Timing Role: Low-drift, low-noise gain block with integrated offset trimming capability. Use Value: 250 nVPP 0.1–10 Hz noise enables 100,000-count resolution; 114 dB CMRR rejects common-mode noise from motor-driven platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA188IDBVT | Lower 25 μV max offset and 0.085 μV/°C drift; same 2 MHz GBW but higher 1.2 mA IQ | Better DC accuracy required; acceptable IQ increase in mains-powered test gear | Select OPA188IDBVT when offset drift dominates error budget and power is not constrained |
| LTC2050CS5#TRMPBF | 25 μV max offset, 0.05 μV/°C drift, 0.5 MHz GBW, 1.5 mA IQ, different SOT-23-5 pinout (V+ and OUT swapped) | Lower bandwidth acceptable; requires PCB layout change due to non-pin-compatible pin assignment | Choose LTC2050CS5#TRMPBF only if ultra-low drift is mandatory and board redesign is feasible |
Compared with OPA180IDBVT, OPA188IDBVT improves DC precision at the cost of 2.3× higher quiescent current, while LTC2050CS5#TRMPBF offers superior drift performance but demands layout revision due to incompatible pin mapping - making OPA180IDBVT the optimal balance of accuracy, speed, power, and drop-in compatibility in SOT-23-5 designs.
Availability
OPA180IDBVT is available at Aetrix Electronics and suitable for bridge amplifiers, strain gauge interfaces, and temperature measurement systems requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for OPA180IDBVT 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 amps and signal chain solutions.
The OPAx180 family was designed specifically for high-accuracy, low-drift industrial sensing and test equipment - emphasizing zero-drift stability, rail-to-rail output, and robust EMI immunity in harsh environments.
FAQ
What is the maximum operating temperature range for the OPA180IDBVT?
The OPA180IDBVT is specified from –40°C to +125°C, with electrical characteristics guaranteed across this full industrial temperature range. This includes parameters such as input offset voltage drift (0.1 μV/°C), CMRR (114 dB), and quiescent current (525 μA max), all validated per TI's SBOS584E datasheet revision June 2018. The OPA180IDBVT's extended temperature rating supports deployment in automotive under-hood modules and industrial control cabinets where ambient heat exceeds 85°C.
Does the OPA180IDBVT support single-supply operation?
Yes, the OPA180IDBVT supports true single-supply operation from 4 V to 36 V. Its input common-mode range includes the negative rail (V–), and its rail-to-rail output swings within 18 mV of both supply rails under no load. When operated from a 3.3-V or 5-V rail, the OPA180IDBVT maintains full input/output dynamic range - enabling direct interfacing with low-voltage ADCs and microcontrollers without level-shifting circuitry. The OPA180IDBVT's design explicitly accommodates single-ended sensor outputs like those from RTDs and thermistors.
What is the input voltage noise specification for the OPA180IDBVT, and how does it impact low-frequency measurements?
The OPA180IDBVT has 10 nV/√Hz input voltage noise density at 1 kHz and 0.25 μVPP peak-to-peak noise in the 0.1 Hz to 10 Hz band. This ultra-low 1/f noise profile makes it ideal for precision DC and low-frequency applications such as electronic scales and strain gauge amplification, where signal bandwidth is typically below 100 Hz. The OPA180IDBVT's zero-drift architecture eliminates traditional chopper noise folding, ensuring that measured noise remains deterministic and repeatable - critical for achieving 100,000-count resolution in weigh scale AFEs.
Is the OPA180IDBVT pin-compatible with other SOT-23-5 op amps like the OPA333 or LTC2050?
No, the OPA180IDBVT is not pin-compatible with OPA333 or LTC2050 in SOT-23-5. While all three use the same DBV package footprint, their pin assignments differ: OPA180IDBVT uses Pin 1=OUT, Pin 2=V–, Pin 3=+IN, Pin 4=–IN, Pin 5=V+; LTC2050 swaps V+ and OUT (Pin 1=V+, Pin 5=OUT); OPA333 uses Pin 1=NC, Pin 2=–IN, etc. Substituting without layout modification will cause functional failure. The OPA180IDBVT's pinout is standardized across TI's OPAx180 family but not cross-manufacturer compatible.
How does the OPA180IDBVT's RFI-filtered input improve system-level EMC performance?
The OPA180IDBVT integrates RFI filtering on both inputs, providing >60 dB attenuation of RF interference up to 1 GHz - verified in TI's EMIRR IN+ characterization (Figure 24). This prevents rectification of high-frequency noise (e.g., from nearby switching power supplies or wireless transceivers) into low-frequency offset errors. In real-world deployments like factory-floor test equipment or medical sensors, this feature eliminates the need for external RC filters or shielded cabling, reducing BOM cost and board area while maintaining measurement integrity. The OPA180IDBVT's RFI rejection is intrinsic and does not degrade bandwidth or DC accuracy.
OPA180IDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- 0.8V/µs
- Gain Bandwidth Product:
- 2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 250 pA
- Voltage - Input Offset:
- 15 µV
- Current - Supply:
- 450µA
- Current - Output / Channel:
- 18 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
OPA180IDBVT FAQ
1.How can I place an order for OPA180IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA180IDBVT 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 OPA180IDBVT reliable?
The price and inventory of OPA180IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA180IDBVT is usually 5 days.
3.What payment methods are accepted for OPA180IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA180IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA180IDBVT?
OPA180IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA180IDBVT 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 OPA180IDBVT?
For technical support, including OPA180IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA180IDBVT requirements.
6.How does Aetrix verify that OPA180IDBVT is sourced from the original manufacturer or authorized distributors?
All OPA180IDBVT 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 OPA180IDBVT meets industry standards.
7.What is the process for return or replacement of OPA180IDBVT?
All OPA180IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA180IDBVT, 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 OPA180IDBVT part is unused and in its original packaging.
Return procedure for OPA180IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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