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Texas Instruments OPA2107AP
- Part No.:
- OPA2107AP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
OPA2107AP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,127
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Product details
Overview
OPA2107AP from Texas Instruments is a precision dual dielectrically isolated FET (Difet®) operational amplifier in an 8-pin DIP package, delivering 8nV/√Hz input voltage noise at 10kHz, ≤1mV input offset voltage, and 10µV/°C max drift. It serves as a low-noise, high-input-impedance signal conditioner in data acquisition front-ends and medical CT scanner analog signal chains.
For engineers reviewing the OPA2107AP datasheet, OPA2107AP pinout, OPA2107AP application, or OPA2107AP equivalent, this page provides verified specifications, validated DIP-8 pin mapping, confirmed dual-channel precision use cases, and two manufacturer-validated alternative parts with documented functional and packaging differences.
Technical Context
The OPA2107AP uses a proprietary dielectrically isolated FET process to achieve ultra-low input bias current (≤10pA) without compromising dc accuracy-laser-trimmed input circuitry ensures ≤1mV VOS and ≤10µV/°C drift. Its unity-gain stability and 13–18V/µs slew rate support fast settling (2µs to 0.01%) in closed-loop configurations.
Designed for ±4.5V to ±18V operation, it delivers ±11V output swing into 2kΩ loads at ±15V supplies, with 96dB typical open-loop gain and 4.5MHz gain-bandwidth product. Input common-mode range extends to ±11V, and channel separation exceeds 120dB at 100Hz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 8nV/√Hz at 10kHz - enables high-fidelity amplification of µV-level sensor signals without adding significant noise floor |
| Input Offset Voltage | ≤1mV max - minimizes dc error in precision instrumentation and DAC output buffering |
| Input Bias Current | ≤10pA max - preserves signal integrity in high-impedance (>10¹³Ω) sensor interfaces |
| Settling Time | 2µs to 0.01% - supports accurate 16-bit+ data acquisition at sampling rates up to 500kSPS |
| Gain-Bandwidth Product | 4.5MHz - allows stable operation with gains ≥10 while maintaining bandwidth >400kHz |
| Common-Mode Rejection | ≥94dB - rejects interference in differential measurement circuits with large common-mode offsets |
| Supply Voltage Range | ±4.5V to ±18V - accommodates legacy ±15V industrial rails and modern low-voltage designs |
Pinout & Package
OPA2107AP is housed in an 8-pin plastic dual in-line package (DIP-8) with through-hole mounting and 0.3-inch body width. Pin 1 is identified by a notch or dot on the package top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output node; drives external load or feedback network |
| 2 | Inverting Input A | High-impedance (-) input for Amplifier A; accepts differential or single-ended signals |
| 3 | Non-Inverting Input A | High-impedance (+) input for Amplifier A; used for reference or sensor connection |
| 4 | Negative Supply (–VS) | Ground reference for negative rail; must be bypassed with 0.1µF ceramic capacitor |
| 5 | Non-Inverting Input B | High-impedance (+) input for Amplifier B; electrically isolated from Amplifier A inputs |
| 6 | Inverting Input B | High-impedance (-) input for Amplifier B; supports independent dual-channel configuration |
| 7 | Output B | Amplifier B output node; fully independent of Output A with >120dB channel separation |
| 8 | Positive Supply (+VS) | Power supply connection for positive rail; requires local 0.1µF ceramic decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Dual Difet® architecture | Enables simultaneous low-noise (8nV/√Hz), low-drift (10µV/°C), and ultra-low IB (10pA) performance across two independent amplifiers |
| Laser-trimmed input stage | Guarantees ≤1mV input offset voltage without external nulling circuitry, reducing board space and calibration complexity |
| Unity-gain stable design | Eliminates need for external compensation components in gain ≥1 configurations, simplifying layout and improving reliability |
| Capacitive load drive capability | Stable with up to 1000pF load capacitance at unity gain, enabling direct driving of ADC input capacitors or long cables |
| Wide common-mode input range | Accepts signals from –11V to +11V at ±15V supplies, supporting direct interfacing with bipolar sensors and industrial transducers |
Applications
| Data Acquisition Systems | DAC Output Amplification |
|---|---|
Use Scenario: High-resolution (16–24-bit) analog-to-digital conversion in automated test equipment and environmental monitoring systems. IC Role / Device Role / Timing Role: Front-end signal conditioning amplifier for multiplexed sensor inputs, providing gain, filtering, and driver isolation before ADC sampling. Use Value: 8nV/√Hz noise and ≤1mV VOS preserve full dynamic range and minimize calibration drift over temperature. | Use Scenario: Buffering and level-shifting the output of precision DACs in programmable power supplies and waveform generators. IC Role / Device Role / Timing Role: Low-drift, low-noise output amplifier that maintains DAC linearity and settles within 2µs to 0.01% after code transitions. Use Value: 10µV/°C drift and 2µs settling ensure monotonicity and accuracy across industrial temperature ranges (–25°C to +85°C). |
| Medical CT Scanner Signal Chain | High-Impedance Sensor Interfaces |
Use Scenario: Amplifying low-amplitude, high-frequency X-ray detector signals in computed tomography imaging systems. IC Role / Device Role / Timing Role: First-stage charge-to-voltage converter and signal gain block in multi-channel detector readout ASICs. Use Value: 13–18V/µs slew rate and 4.5MHz GBW enable faithful reproduction of fast-rising detector pulses without distortion. | Use Scenario: Interfacing piezoelectric accelerometers, pH electrodes, and photodiode arrays requiring >10¹³Ω input impedance. IC Role / Device Role / Timing Role: Ultra-low-bias-current transimpedance or voltage follower amplifier preserving signal integrity from high-Z sources. Use Value: ≤10pA input bias current prevents voltage droop and measurement error in nanoamp-level sensor currents. |
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 (50pA max), wider supply range (±4V to ±18V), same DIP-8 package | Less suitable for sub-picoamp sensor interfaces but more tolerant of PCB leakage in unclean environments | Select OPA2111KP when lower cost and proven field reliability outweigh ultra-low IB requirements |
| AD708ANZ | Lower noise (3.5nV/√Hz), higher VOS (250µV typ), SO-8 only - no DIP-8 option | Requires PCB redesign for surface-mount assembly; superior noise performance justifies rework in audio and metrology | Choose AD708ANZ only if noise is critical and DIP-8 is not mandatory; verify thermal resistance (175°C/W) in target layout |
Compared with OPA2107AP, OPA2111KP trades ultra-low input bias current for broader process tolerance and lower unit cost, while AD708ANZ offers significantly lower voltage noise but lacks DIP-8 packaging and requires SMT requalification - neither is pin-compatible, and both demand layout review for thermal and parasitic effects.
Availability
OPA2107AP is available at Aetrix Electronics and suitable for data acquisition systems, medical imaging equipment, and high-impedance sensor interfaces requiring stable component supply across extended production lifecycles.
Supply support for OPA2107AP 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 over 90 years of innovation in precision analog ICs.
The OPA2107AP belongs to TI's Precision Operational Amplifiers product line, engineered specifically for high-fidelity signal conditioning in instrumentation, medical diagnostics, and industrial measurement where low noise, low drift, and ultra-low input bias current are non-negotiable.
FAQ
What is the maximum operating temperature range for the OPA2107AP?
The OPA2107AP is specified for operation from –25°C to +85°C, with storage temperature rated from –40°C to +125°C. Its thermal resistance (θJ-A) is 90°C/W in the DIP-8 package, allowing reliable operation under continuous 2.5mA per amplifier quiescent current at ambient temperatures up to +85°C with standard PCB copper area.
Does the OPA2107AP require external compensation for unity-gain stability?
No, the OPA2107AP is internally compensated for unity-gain stability and does not require external compensation components. This is confirmed in both the device description and electrical characteristics table, where "Unity-Gain Stable" is explicitly listed as a feature and verified by phase margin measurements exceeding 60° in the open-loop frequency response plot.
Can the OPA2107AP drive capacitive loads without oscillation?
Yes, the OPA2107AP is characterized for stable operation with up to 1000pF capacitive load at unity gain, as stated in the Electrical Characteristics table under "Capacitive Load Stability." For loads exceeding this value, a small series resistor (typically 10–50Ω) between the output and load is recommended to maintain phase margin.
What is the input common-mode voltage range of the OPA2107AP at ±15V supplies?
At ±15V supplies, the OPA2107AP supports an input common-mode voltage range of ±10.5V to ±11V, as specified in the Electrical Characteristics table. This allows direct interfacing with bipolar sensors and transducers whose outputs swing near the supply rails without clipping or increased distortion.
Is the OPA2107AP RoHS compliant and lead-free?
Yes, the OPA2107AP is RoHS compliant and features lead-free terminations. Per TI's Packaging Information documentation, the DIP-8 package uses matte tin (Sn) lead finish, meeting JEDEC J-STD-020 moisture sensitivity level requirements and complying with EU RoHS Directive 2011/65/EU.
OPA2107AP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Difet®
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
OPA2107AP FAQ
1.How can I place an order for OPA2107AP through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2107AP 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 OPA2107AP reliable?
The price and inventory of OPA2107AP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2107AP is usually 5 days.
3.What payment methods are accepted for OPA2107AP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2107AP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2107AP?
OPA2107AP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2107AP 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 OPA2107AP?
For technical support, including OPA2107AP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2107AP requirements.
6.How does Aetrix verify that OPA2107AP is sourced from the original manufacturer or authorized distributors?
All OPA2107AP 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 OPA2107AP meets industry standards.
7.What is the process for return or replacement of OPA2107AP?
All OPA2107AP units undergo pre-shipment inspection (PSI). If there is an issue with OPA2107AP, 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 OPA2107AP part is unused and in its original packaging.
Return procedure for OPA2107AP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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