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Texas Instruments OPA2727AID
- Part No.:
- OPA2727AID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2727AID.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:915
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Product details
Overview
OPA2727AID from Texas Instruments is a dual-channel, e-trim™ high-precision CMOS operational amplifier in SOIC-8 package, delivering 20MHz gain-bandwidth, 30V/µs slew rate, and 150µV max input offset voltage with 1.5µV/°C max drift. It operates from ±2V to ±6V or +4V to +12V supplies and drives ADCs and transimpedance circuits in optical networking and test equipment.
For engineers reviewing the OPA2727AID datasheet, OPA2727AID pinout, OPA2727AID application, or OPA2727AID equivalent, key selection criteria include rail-to-rail output swing (150mV from rails), ultra-low bias current (500pA max), low noise (6nV/√Hz at 100kHz), and guaranteed performance over –40°C to +85°C.
Technical Context
The OPA2727AID uses e-trim™ technology-digital trimming performed post-packaging-to stabilize offset and drift against mechanical stress-induced parameter shifts. Its CMOS input stage enables sub-picoampere bias current and wide common-mode range (V– to V+–2.5V).
It features a Class AB rail-to-rail output stage capable of 40mA drive into resistive loads, with open-loop gain >110dB (RL = 100kΩ) and CMRR >94dB across its full input range. Stability is ensured in unity-gain configurations without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 20MHz - supports stable unity-gain operation and fast settling for 16-bit ADC drivers. |
| Slew Rate | 30V/µs - enables accurate reproduction of high-slew signals up to ~1MHz without distortion. |
| Input Offset Voltage (max) | 150µV - ensures <0.0024% error in 6V full-scale precision measurement systems. |
| Offset Drift (max) | 1.5µV/°C - maintains calibration integrity over industrial temperature range without recalibration. |
| Input Bias Current (max) | 500pA - critical for high-impedance photodiode transimpedance amplifiers with minimal signal loss. |
| Supply Voltage Range | +4V to +12V or ±2V to ±6V - compatible with single-supply 5V/12V and dual-supply ±5V systems. |
| Output Swing (vs rail) | 150mV - delivers >97% dynamic range at 100kΩ load, maximizing SNR in low-voltage systems. |
| Quiescent Current | 4.3mA per channel - balances precision performance with power efficiency in battery-operated instruments. |
Pinout & Package
OPA2727AID is housed in an 8-pin SOIC (D) package with exposed thermal pad connected internally to V–. Pin 1 is marked by a beveled corner or dot; the device is not pin-compatible with standard op amp SOIC footprints requiring NC pins.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - rail-to-rail capable, drives 40mA, requires local 1nF + 1µF supply bypassing. |
| 2 | IN– A | Inverting input A - high-impedance CMOS node; sensitive to PCB leakage; guard trace recommended. |
| 3 | IN+ A | Non-inverting input A - accepts common-mode voltage down to V–, enabling true single-supply sensor interfacing. |
| 4 | V– | Negative supply - connects to exposed thermal die pad; must be low-impedance ground plane for thermal stability. |
| 5 | IN+ B | Non-inverting input B - electrically isolated from Channel A; supports independent dual-signal conditioning. |
| 6 | IN– B | Inverting input B - matched AC/DC characteristics to Channel A; channel separation >100dB at DC. |
| 7 | OUT B | Amplifier B output - identical drive capability and noise performance as OUT A; no crosstalk in layout. |
| 8 | V+ | Positive supply - accepts 4V–12V single or ±2V–±6V dual; bypassing mandatory for PSRR >84dB. |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ post-package digital trimming | Eliminates offset drift induced by plastic molding stress, ensuring 150µV max VOS over life and temperature. |
| Rail-to-rail output stage | Swings within 150mV of V+ and V– at light loads, preserving >97% of available voltage headroom. |
| Ultra-low input bias current | 500pA max enables direct connection to photodiodes and high-value feedback resistors (>10MΩ) without gain error. |
| Low 1/f and broadband noise | 6nV/√Hz at 100kHz and 10µVPP (0.1–10Hz) support precision DC-coupled instrumentation and audio front-ends. |
| High open-loop gain & CMRR | AOL >110dB and CMRR >94dB minimize errors from common-mode interference in noisy industrial environments. |
| Unity-gain stable | No external compensation required - simplifies layout and reduces bill-of-materials for buffer and gain stages. |
Applications
| Optical Transimpedance Amplifier | 16-Bit ADC Driver |
|---|---|
Use Scenario: Converting photocurrent from PIN photodiodes in ONET receivers into precise voltage signals. IC Role / Device Role / Timing Role: Transimpedance amplifier (I/V converter) with 10MΩ–1GΩ feedback networks and bandwidth up to 20MHz. Use Value: 500pA max bias current prevents signal attenuation; 6nV/√Hz noise preserves SNR in low-light detection. | Use Scenario: Buffering and driving inputs of high-speed 16-bit SAR ADCs like ADS8342 with 600ns acquisition windows. IC Role / Device Role / Timing Role: High-fidelity unity-gain buffer with 350ns 0.1% settling time and charge injection immunity. Use Value: 20MHz GBW and 30V/µs slew rate ensure full-scale step settling within ADC aperture time. |
| Active Precision Filter | Process Control Signal Conditioning |
Use Scenario: Implementing 4-pole Butterworth low-pass filters (e.g., 50kHz cutoff) in data acquisition front-ends. IC Role / Device Role / Timing Role: Dual-op-amp Sallen-Key topology using both channels for cascaded filtering and gain. Use Value: Matched dc specs (VOS, drift) between channels ensure filter symmetry and phase linearity. | Use Scenario: Isolating and scaling 4–20mA loop signals or thermocouple outputs in PLC analog I/O modules. IC Role / Device Role / Timing Role: Precision difference amplifier and reference buffer with 150µV max offset error. Use Value: 1.5µV/°C max drift eliminates thermal zero-shift in uncalibrated field instruments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2188AID | Zero-drift auto-zero architecture; 0.003µV/°C drift vs OPA2727AID's 1.5µV/°C; higher 1/f noise. | Better for µV-level DC stability over temperature; less suitable for >100kHz AC-coupled signal chains. | Select OPA2188AID when long-term DC accuracy dominates; retain OPA2727AID for balanced AC/DC performance. |
| ADA4522-2ARZ | Zero-drift, 2.5µV max VOS, 5.6nV/√Hz noise, but only 3MHz GBW and 1.8V/µs slew rate. | Lower bandwidth limits use in ADC drivers or active filters above ~100kHz. | Choose ADA4522-2ARZ for ultra-low drift in low-frequency sensor interfaces; OPA2727AID remains preferred for wideband precision. |
Compared with OPA2188AID and ADA4522-2ARZ, the OPA2727AID uniquely combines 20MHz bandwidth, 30V/µs slew rate, and 150µV max offset in a cost-optimized SOIC-8, making it optimal for mixed-signal systems requiring both speed and precision without zero-drift complexity.
Availability
OPA2727AID is available at Aetrix Electronics and suitable for optical transimpedance amplifiers, 16-bit ADC drivers, and precision active filters requiring stable component supply across industrial and test equipment programs.
Supply support for OPA2727AID 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 OPA2727AID belongs to TI's e-trim™ precision op amp family, engineered for applications demanding low offset, low drift, and high-speed AC performance in harsh industrial and optical environments.
FAQ
What is the maximum operating temperature range specified for the OPA2727AID?
The OPA2727AID is specified over –40°C to +85°C ambient temperature. While the underlying OPA2727 family supports –40°C to +125°C, the OPA2727AID variant (SOIC-8, tube packaging) is rated to +85°C per TI's official ordering information and thermal resistance (θJA = 150°C/W). This reflects package-level qualification limits, not die capability.
Does the OPA2727AID have shutdown functionality?
No, the OPA2727AID does not include shutdown functionality. Shutdown is exclusive to the OPA2728 series (e.g., OPA2728AIDGKR). The OPA2727AID is the non-shutdown dual version; its quiescent current remains at 4.3mA per channel across the full supply and temperature range.
What package type and marking correspond to the OPA2727AID orderable part?
The OPA2727AID is supplied in an 8-pin SOIC (D) package with tube packaging (75 units/tube). Its top-side marking is "O2727A" followed by "2727A" on the second line, as confirmed in TI's Package Option Addendum. The exposed thermal pad is internally connected to V–.
Can the OPA2727AID drive capacitive loads without oscillation?
Yes, the OPA2727AID is unity-gain stable and can drive moderate capacitive loads. With CL = 20pF, it exhibits <10% overshoot in small-signal step response. For heavier loads (>100pF), a 10Ω–20Ω series resistor in the feedback path (as shown in TI's Figure 30) restores stability while preserving DC accuracy.
Is the OPA2727AID pin-compatible with other dual op amps in SOIC-8 packages?
No - the OPA2727AID has a nonstandard pinout: Pin 1 = OUT A, Pin 2 = IN– A, Pin 3 = IN+ A, Pin 4 = V–, Pin 5 = IN+ B, Pin 6 = IN– B, Pin 7 = OUT B, Pin 8 = V+. This differs from industry-standard dual op amp pinouts (e.g., LM358, TL072), where Pin 1 is often NC or OUT A with different channel assignments.
OPA2727AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- e-trim™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 30V/µs
- Gain Bandwidth Product:
- 20 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 85 pA
- Voltage - Input Offset:
- 15 µV
- Current - Supply:
- 4.3mA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 3.5 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA2727AID FAQ
1.How can I place an order for OPA2727AID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2727AID 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 OPA2727AID reliable?
The price and inventory of OPA2727AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2727AID is usually 5 days.
3.What payment methods are accepted for OPA2727AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2727AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2727AID?
OPA2727AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2727AID 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 OPA2727AID?
For technical support, including OPA2727AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2727AID requirements.
6.How does Aetrix verify that OPA2727AID is sourced from the original manufacturer or authorized distributors?
All OPA2727AID 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 OPA2727AID meets industry standards.
7.What is the process for return or replacement of OPA2727AID?
All OPA2727AID units undergo pre-shipment inspection (PSI). If there is an issue with OPA2727AID, 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 OPA2727AID part is unused and in its original packaging.
Return procedure for OPA2727AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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