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Texas Instruments OPA2107AUG4
- Part No.:
- OPA2107AUG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2107AUG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,327
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Product details
Overview
OPA2107AUG4 from Texas Instruments is a precision dual Difet® operational amplifier optimized for low-noise, high-input-impedance analog signal conditioning. It delivers 8nV/√Hz input voltage noise at 10kHz, 1mV max input offset voltage, and 10µV/°C max drift, enabling high-fidelity amplification in CT scanner front-ends and DAC output stages.
For engineers reviewing the OPA2107AUG4 datasheet, OPA2107AUG4 pinout, OPA2107AUG4 application, or OPA2107AUG4 equivalent, this page provides verified specifications, SOIC-8 package details, real-world use cases in medical imaging and data acquisition, and validated alternative options for design continuity.
Technical Context
The OPA2107AUG4 employs a proprietary dielectrically isolated (Difet) process to achieve ultra-low input bias current (≤10pA) without compromising dc accuracy or dynamic performance. Its laser-trimmed input stage ensures tight offset and drift control, while unity-gain stability supports direct use in gain-of-one configurations without external compensation.
Designed for ±4.5V to ±18V operation, it delivers 13–18V/µs slew rate, 4.5MHz gain-bandwidth product, and 0.01% settling in 2µs - making it suitable for fast, high-resolution analog signal chains where both precision and speed are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 8nV/√Hz at 10kHz - enables clean amplification of µV-level sensor signals without added noise floor degradation |
| Input Offset Voltage | 1mV max - ensures minimal dc error in precision gain stages and instrumentation amplifier front-ends |
| Input Bias Current | 10pA max - preserves signal integrity in >10¹²Ω source impedances, critical for photodiode and piezoelectric sensor interfaces |
| Settling Time | 2µs to 0.01% - supports 500ksps data acquisition with full 16-bit accuracy in successive-approximation ADC driver applications |
| Gain-Bandwidth Product | 4.5MHz - allows stable closed-loop gains up to 45 at 100kHz, sufficient for anti-aliasing filter buffering and active filtering |
| Common-Mode Rejection | 94dB min - rejects interference in differential measurement systems with unbalanced PCB layouts or long sensor cables |
| Supply Current | ±4.5mA total - balances low power consumption with high-speed performance for dual-channel embedded systems |
Pinout & Package
OPA2107AUG4 is housed in an SOIC-8 (D) package with 1.27mm lead pitch and 1.75mm maximum height, qualified for surface-mount reflow per JEDEC Level-3 (260°C peak, 168hr moisture sensitivity).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output node; drives loads ≥2kΩ with ±11V swing under ±15V supply |
| 2 | Inverting Input A | High-impedance (10¹³Ω) negative feedback node for amplifier A; requires guard trace in high-Z layouts |
| 3 | Non-Inverting Input A | High-impedance (10¹³Ω) signal input for amplifier A; sensitive to board leakage; must be guarded |
| 4 | Negative Supply (–VS) | Common return for both amplifiers; bypass with 0.1µF ceramic capacitor near pin |
| 5 | Non-Inverting Input B | High-impedance (10¹³Ω) signal input for amplifier B; electrically isolated from amplifier A |
| 6 | Inverting Input B | High-impedance (10¹³Ω) negative feedback node for amplifier B; shares no internal nodes with amplifier A |
| 7 | Output B | Amplifier B output node; independent channel with identical specs to Output A |
| 8 | Positive Supply (+VS) | Common rail for both amplifiers; bypass with 0.1µF ceramic capacitor near pin |
Key Features
| Feature | Design Value |
|---|---|
| Difet® input architecture | Enables 10pA max input bias current while maintaining <1mV offset and <10µV/°C drift - eliminates trade-off between input impedance and dc precision |
| Laser-trimmed input stage | Guarantees 1mV max VOS and 10µV/°C max drift across –25°C to +85°C, reducing calibration overhead in production test |
| Unity-gain stable | Operates reliably at G = +1 without external compensation, simplifying circuit design for buffer and gain-of-one applications |
| Capacitive load drive | Stable with up to 1000pF load at G = +1, supporting direct driving of ADC input capacitors and long PCB traces |
| Low THD + Noise | 0.001% at 1kHz - preserves signal fidelity in high-performance audio preamps and medical waveform digitization |
Applications
| CT Scanner Front-End | DAC Output Amplifier |
|---|---|
Use Scenario: Amplifying low-amplitude, high-frequency X-ray detector signals in computed tomography systems. IC Role / Device Role / Timing Role: Dual-channel transimpedance and signal conditioning amplifier handling simultaneous detector channel pairs. Use Value: 8nV/√Hz noise floor and 2µs settling preserve SNR and spatial resolution in sub-millisecond scan intervals. | Use Scenario: Buffering and scaling the output of 16-bit DACs in programmable power supply controllers. IC Role / Device Role / Timing Role: Precision voltage follower and gain stage ensuring monotonicity and linearity over full temperature range. Use Value: 1mV max VOS and 10µV/°C drift prevent DAC code-dependent errors and thermal-induced gain drift. |
| High-Z Sensor Interface | Optoelectronic Receiver |
Use Scenario: Conditioning signals from piezoelectric accelerometers and glass pH electrodes with >1GΩ source impedance. IC Role / Device Role / Timing Role: Ultra-low-bias-current non-inverting amplifier with guarded input traces. Use Value: 10pA max IB prevents signal attenuation and time-constant errors in RC-coupled high-impedance sensor paths. | Use Scenario: Amplifying low-current outputs from photodiodes and avalanche photodiodes in fiber-optic receivers. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier with wide bandwidth and high common-mode rejection. Use Value: 94dB CMRR and 4.5MHz GBW enable accurate detection of weak optical signals amid ambient light interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2111KP | Higher input bias current (25pA), lower noise (5.5nV/√Hz), same SOIC-8 package | Better suited for ultra-low-noise single-supply designs; lacks guaranteed 0.01% settling spec | Select when noise dominates over bias current; verify layout guarding for 25pA IB |
| AD822ARZ | FET input, 25nV/√Hz noise, 100pA IB, rail-to-rail output, SOIC-8 | Superior output swing but higher noise limits use in CT front-ends; better for general-purpose low-power apps | Choose for cost-sensitive industrial sensors where 25nV/√Hz noise is acceptable |
Compared with OPA2107AUG4, OPA2111KP offers lower noise but higher input bias current, while AD822ARZ trades noise performance for rail-to-rail output and broader supply range - neither is pin-compatible, requiring layout revision for substitution.
Availability
OPA2107AUG4 is available at Aetrix Electronics and suitable for medical imaging equipment, high-resolution data acquisition systems, and precision instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA2107AUG4 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, embedded processing, and digital signal technologies, with decades of heritage in precision op amp innovation.
The OPA2107AUG4 belongs to TI's precision Difet® op amp family, engineered specifically for applications demanding ultra-low noise, femtoampere-level input bias, and guaranteed dc accuracy in harsh thermal environments.
FAQ
What is the maximum operating temperature range for the OPA2107AUG4?
The OPA2107AUG4 is specified for operation from –25°C to +85°C, with storage temperature rated from –40°C to +125°C. Its SOIC-8 package has a thermal resistance (θJ-A) of 175°C/W, requiring attention to PCB copper area and airflow in high-ambient environments. The OPA2107AUG4 maintains all key parameters-including 1mV max VOS and 8nV/√Hz noise-within this full range.
Does the OPA2107AUG4 require external compensation for unity-gain stability?
No, the OPA2107AUG4 is internally compensated for unity-gain stability and operates reliably with closed-loop gains of +1 without external components. Its phase margin exceeds 60° at G = +1, as confirmed by open-loop frequency response data in the official SBOS161A datasheet. This eliminates the need for compensation networks in buffer and gain-of-one configurations using the OPA2107AUG4.
Can the OPA2107AUG4 drive capacitive loads, and if so, up to what value?
Yes, the OPA2107AUG4 is characterized to remain stable with capacitive loads up to 1000pF when configured for unity gain. This capability is explicitly documented in the Electrical Characteristics table under "Capacitive Load Stability." For loads exceeding 1000pF or for gains other than +1, external isolation resistors or compensation may be required - always verify stability with actual layout parasitics when using the OPA2107AUG4 in high-capacitance applications.
What is the input common-mode voltage range of the OPA2107AUG4?
The OPA2107AUG4 supports a common-mode input voltage range of ±10.5V to ±11V with ±15V supplies, and ±10.2V to ±10.5V across the full –25°C to +85°C temperature range. This rail-referenced range allows robust operation in bipolar signal chains where inputs swing near supply rails - a key enabler for its use in CT scanner analog front-ends and high-dynamic-range DAC buffers using the OPA2107AUG4.
Is the OPA2107AUG4 RoHS compliant and lead-free?
Yes, the OPA2107AUG4 is RoHS compliant and features a NIPDAU (nickel-palladium-gold) lead finish, as confirmed in TI's official packaging addendum. It meets JEDEC MSL Level-3 standards (260°C peak reflow, 168-hour floor life) and is supplied in tape-and-reel format (2500 units per reel). All OPA2107AUG4 units distributed by Aetrix Electronics carry full RoHS documentation and traceability for compliance verification.
OPA2107AUG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Difet®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 18V/µs
- Gain Bandwidth Product:
- 4.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 4 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 4.5mA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -25°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA2107AUG4 FAQ
1.How can I place an order for OPA2107AUG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2107AUG4 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 OPA2107AUG4 reliable?
The price and inventory of OPA2107AUG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2107AUG4 is usually 5 days.
3.What payment methods are accepted for OPA2107AUG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2107AUG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2107AUG4?
OPA2107AUG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2107AUG4 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 OPA2107AUG4?
For technical support, including OPA2107AUG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2107AUG4 requirements.
6.How does Aetrix verify that OPA2107AUG4 is sourced from the original manufacturer or authorized distributors?
All OPA2107AUG4 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 OPA2107AUG4 meets industry standards.
7.What is the process for return or replacement of OPA2107AUG4?
All OPA2107AUG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2107AUG4, 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 OPA2107AUG4 part is unused and in its original packaging.
Return procedure for OPA2107AUG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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