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Texas Instruments OPA727AIDGKTG4
- Part No.:
- OPA727AIDGKTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA727AIDGKTG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,497
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Product details
Overview
OPA727AIDGKTG4 from Texas Instruments is a single-channel, e-trim™ high-precision CMOS operational amplifier in MSOP-8 package, delivering 20MHz gain-bandwidth, 30V/µs slew rate, 150µV max input offset voltage, and 0.0003% THD+N at 1kHz - optimized for transimpedance amplifiers in optical networking and precision active filters.
For engineers reviewing the OPA727AIDGKTG4 datasheet, OPA727AIDGKTG4 pinout, OPA727AIDGKTG4 application, or OPA727AIDGKTG4 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 operation across –40°C to +125°C with supply range 4V–12V.
Technical Context
The OPA727AIDGKTG4 uses Texas Instruments' e-trim™ technology - digital trimming performed post-packaging to eliminate stress-induced parameter shifts - achieving 150µV max offset and 1.5µV/°C max drift over temperature. Its CMOS input stage enables 500pA max input bias current and 10¹¹Ω||5pF input impedance.
It features an AB-class rail-to-rail output stage capable of driving ≥40mA, with specified output swing to within 150mV of rails under light loads (100kΩ) and 250mV under 1kΩ loads while maintaining >106dB open-loop gain. Stability is ensured in unity-gain configuration with capacitive load drive support up to 20pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 20MHz - supports stable unity-gain operation and wideband signal conditioning up to audio and communication frequencies. |
| Input Offset Voltage (max) | 150µV - enables high-accuracy DC-coupled amplification without external nulling in precision sensor interfaces. |
| Slew Rate | 30V/µs - ensures fast settling for 16-bit ADC drivers (e.g., ADS8342) within 600ns acquisition windows. |
| Input Bias Current (max) | 500pA - critical for low-leakage photodiode transimpedance applications where input current error must be minimized. |
| Supply Voltage Range | 4V to 12V - supports both single-supply (e.g., +5V, +12V) and dual-supply (±2V to ±6V) configurations without performance degradation. |
| Output Swing (vs rail) | 150mV - maximizes dynamic range in single-supply systems by enabling true ground-referenced input and near-rail output. |
| THD+N @ 1kHz | 0.0003% - meets high-fidelity audio and measurement-grade signal chain requirements with minimal harmonic distortion. |
Pinout & Package
OPA727AIDGKTG4 is housed in an 8-pin MSOP (VSSOP) package with exposed thermal pad on underside, requiring connection to V– for optimal thermal performance and reliability. Pin 1 is marked with dot; top view orientation follows standard MSOP layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused terminal - must be left floating or tied to ground per layout guidelines; no functional impact. |
| 2 (V+) | Positive supply rail | Accepts 4V–12V single supply or +2V–+6V of dual supply; requires local 1nF + 1µF bypassing. |
| 3 (OUT) | Amplifier output | Rail-to-rail capable; drives ≥40mA; swing limited to 150mV from rails under 100kΩ load. |
| 4 (NC) | No internal connection | Unused terminal - same handling as Pin 1; no routing required. |
| 5 (NC) | No internal connection | Unused terminal - confirmed NC in all MSOP variants per TI SBOS314H datasheet Figure 1. |
| 6 (–IN) | Inverting input | High-impedance CMOS node; input common-mode range extends to V– for true single-supply operation. |
| 7 (+IN) | Non-inverting input | Matches –IN in bias current and offset specs; supports GND-referenced inputs in single-supply designs. |
| 8 (V–) | Negative supply rail / GND | Reference for all signals in single-supply mode; thermal pad must be soldered to PCB plane connected to V–. |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ post-package trimming | Digital offset and drift calibration after molding eliminates stress-induced parameter shift, guaranteeing 150µV max VOS and 1.5µV/°C max drift. |
| Rail-to-rail output stage | AB-class output delivers 150mV rail margin at 100kΩ load, preserving >16-bit dynamic range in precision data acquisition systems. |
| Ultra-low input bias current | 500pA max enables accurate I/V conversion for photodiodes with capacitance <10pF, minimizing transimpedance gain error. |
| Low 1/f and broadband noise | 6nV/√Hz at 100kHz and 10µVPP (0.1–10Hz) support low-noise front-end design in optical power monitoring and strain gauge interfaces. |
| Unity-gain stable | Internally compensated for G ≥ 1; drives 20pF capacitive loads without external compensation in buffer or ADC driver configurations. |
Applications
| Optical Power Monitoring | High-Speed 16-Bit ADC Driver |
|---|---|
Use Scenario: Converting photocurrent from PIN photodiodes in ONET-compliant optical receivers into precise voltage signals. IC Role / Device Role / Timing Role: Transimpedance amplifier (I/V converter) with gain set by feedback resistor; operates at DC–20MHz bandwidth. Use Value: 500pA max input bias current minimizes dark-current error; 20MHz GBW supports fast optical burst detection; 6nV/√Hz noise preserves SNR in low-light conditions. | Use Scenario: Buffering and gain-setting for the analog input of ADS8342 16-bit, 250kSPS ADC in test equipment. IC Role / Device Role / Timing Role: Precision driver with 30V/µs slew rate and 350ns 0.1% settling time to meet 600ns acquisition window. Use Value: 0.0003% THD+N ensures full 16-bit linearity; rail-to-rail output matches ±2.5V ADC input range; 150mV rail margin avoids clipping. |
| Single-Supply Active Filters | Process Control Signal Conditioning |
Use Scenario: Implementing 4-pole Butterworth low-pass filters (e.g., 50kHz cutoff) in portable instrumentation using single +5V supply. IC Role / Device Role / Timing Role: Gain stage in Sallen-Key topology; configured for DC-coupled operation with GND-referenced inputs. Use Value: 15µV typical offset and 0.3µV/°C drift prevent filter DC error accumulation; CMRR >94dB rejects supply ripple in battery-powered systems. | Use Scenario: Amplifying low-level outputs from RTDs, thermocouples, or pressure sensors in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end stage with programmable gain and offset correction. Use Value: 120dB open-loop gain and 86dB CMRR suppress common-mode noise in noisy factory environments; –40°C to +125°C rating ensures field reliability. |
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 |
|---|---|---|---|
| OPA727AIDGKR | Same silicon, identical electrical specs; differs only in RoHS lead finish (NIPDAU vs unspecified) and packaging carrier (tape-and-reel vs tube). | No functional difference; both rated for –40°C to +125°C and qualified for industrial use. | Select OPA727AIDGKTG4 when TI's G4 suffix (lead-free, RoHS-compliant) is required for compliance-driven programs. |
| OPA2727AIDRBRG4 | Dual-channel version in DFN-8; shares same 20MHz GBW, 150µV VOS, and e-trim architecture but doubles channel count in smaller footprint. | Used where space-constrained PCBs require two matched precision amps (e.g., differential input stages or dual-sensor conditioning). | Choose OPA2727AIDRBRG4 only if dual-channel functionality and DFN thermal performance (θJA = 46°C/W) are needed - not a drop-in replacement for OPA727AIDGKTG4. |
Compared with OPA727AIDGKR, the OPA727AIDGKTG4 offers identical performance with guaranteed RoHS compliance; versus OPA2727AIDRBRG4, it provides single-channel simplicity and MSOP-8 compatibility with legacy SO-8 footprints, avoiding redesign for space or thermal constraints.
Availability
OPA727AIDGKTG4 is available at Aetrix Electronics and suitable for optical networking, high-speed data acquisition, and industrial process control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA727AIDGKTG4 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 signal chain solutions.
The OPA727 series belongs to TI's e-trim™ precision op amp product line, engineered specifically for applications demanding ultra-low offset, minimal drift, and high-speed accuracy - including optical sensing, test equipment, and industrial measurement systems.
FAQ
What is the maximum operating temperature range for the OPA727AIDGKTG4?
The OPA727AIDGKTG4 is fully specified and tested over an operating temperature range of –40°C to +125°C, making it suitable for under-hood automotive, industrial control, and outdoor optical networking equipment where ambient temperatures exceed standard commercial limits. This rating is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of TI's SBOS314H datasheet.
Does the OPA727AIDGKTG4 support single-supply operation down to 4V?
Yes, the OPA727AIDGKTG4 is fully characterized for single-supply operation from 4V to 12V, with input common-mode range extending to V– (ground) and rail-to-rail output swing. At 4V supply, it maintains 20MHz GBW, 30V/µs slew rate, and 150µV max offset - verified in TI's Electrical Characteristics table under VS = +4V to +12V conditions.
Is the exposed thermal pad on the OPA727AIDGKTG4 MSOP-8 package required to be connected?
Yes, the exposed thermal pad on the bottom of the OPA727AIDGKTG4 MSOP-8 package must be soldered to a PCB copper area connected to V–. TI explicitly states this is mandatory for structural integrity, long-term reliability during thermal cycling, and optimal thermal performance (θJA = 150°C/W). Leaving it unconnected risks premature failure and degraded parametric stability.
Can the OPA727AIDGKTG4 drive a 20pF capacitive load in unity-gain buffer configuration?
Yes, the OPA727AIDGKTG4 is unity-gain stable and capable of driving up to 20pF capacitive loads without external compensation, as confirmed in the Typical Characteristics section (Figure 19: Small-Signal Overshoot vs Capacitive Load) and Applications Information. For loads >20pF or demanding overshoot requirements, a 10Ω–20Ω series resistor in the feedback path is recommended.
What is the quiescent current consumption of the OPA727AIDGKTG4 at +25°C and 5V supply?
At +25°C and 5V supply, the OPA727AIDGKTG4 draws 4.3mA typical quiescent current per amplifier - consistent across its 4V–12V operating range per the Electrical Characteristics table. This value remains stable over temperature, with a maximum of 6.5mA at +125°C, enabling reliable power budgeting in battery-operated or thermally constrained systems.
OPA727AIDGKTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- e-trim™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA727AIDGKTG4 FAQ
1.How can I place an order for OPA727AIDGKTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA727AIDGKTG4 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 OPA727AIDGKTG4 reliable?
The price and inventory of OPA727AIDGKTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA727AIDGKTG4 is usually 5 days.
3.What payment methods are accepted for OPA727AIDGKTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA727AIDGKTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA727AIDGKTG4?
OPA727AIDGKTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA727AIDGKTG4 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 OPA727AIDGKTG4?
For technical support, including OPA727AIDGKTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA727AIDGKTG4 requirements.
6.How does Aetrix verify that OPA727AIDGKTG4 is sourced from the original manufacturer or authorized distributors?
All OPA727AIDGKTG4 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 OPA727AIDGKTG4 meets industry standards.
7.What is the process for return or replacement of OPA727AIDGKTG4?
All OPA727AIDGKTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA727AIDGKTG4, 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 OPA727AIDGKTG4 part is unused and in its original packaging.
Return procedure for OPA727AIDGKTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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