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Texas Instruments OPA810IDR
- Part No.:
- OPA810IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA810IDR.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,661
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Product details
Overview
OPA810IDR from Texas Instruments is a single-channel, rail-to-rail input/output, FET-input operational amplifier optimized for high-fidelity data acquisition and signal conditioning. It delivers 140MHz small-signal bandwidth, 200V/µs slew rate, 6.3nV/√Hz input voltage noise, ±500µV max input offset, and operates from ±2.375V to ±12V (4.75V–27V total) supply rails-enabling precision wideband photodiode transimpedance amplification and high-Z sensor interfacing.
For engineers reviewing the OPA810IDR datasheet, OPA810IDR pinout, OPA810IDR application, or OPA810IDR equivalent, key selection criteria include its picoampere-level input bias current (2pA typ), 75mA linear output drive capability, extended –40°C to +125°C temperature range, and SOIC-8 package compatibility with high-density analog front ends requiring low-noise, high-speed buffering of ADC/DAC interfaces.
Technical Context
The OPA810IDR employs a proprietary SiGe BiCMOS process to achieve unity-gain stability with 140MHz bandwidth while maintaining dc precision: 108dB open-loop gain, 80–105dB CMRR, and ±2.5µV/°C offset drift. Its dual-stage input architecture combines a main JFET stage (for ultra-low bias current and noise) with an auxiliary CMOS stage (27MHz GBWP, 20nV/√Hz at 1MHz) to extend common-mode range near the positive rail.
It supports both single-supply (5V) and split-supply (±12V) operation, with rail-to-rail output swing (e.g., VS+ – 0.11V min high output at 10V supply) and robust capacitive load drive (10pF stable). Input overdrive recovery is 35ns under ±12V conditions, and large-signal bandwidth reaches 44MHz at 2VPP output into 1kΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 140MHz at G = 1, enabling >100MHz signal chain bandwidth in unity-gain buffer configurations |
| Gain-bandwidth product | 70MHz - defines stable closed-loop gain vs bandwidth tradeoff (e.g., G = 10 → 7MHz usable bandwidth) |
| Slew rate | 200V/µs at ±5V supply - supports full-scale 2VPP step response in <10ns without slewing distortion |
| Input voltage noise | 6.3nV/√Hz at 500kHz - critical for low-noise transimpedance amplifiers with photodiodes or high-impedance sensors |
| Input bias current | 2pA typical - preserves signal integrity in picoampere-level current measurement circuits (e.g., impedance analyzers) |
| Output drive | 75mA linear sourcing/sinking - directly drives heavy loads like ADC inputs, DAC buffers, or optoelectronic drivers without external boost |
| Supply range | 4.75V to 27V total - accommodates industrial 24V systems, battery-powered 5V designs, and precision ±12V test equipment |
| Operating temperature | –40°C to +125°C - qualified for automotive under-hood, industrial motor control, and energy metering applications |
Pinout & Package
OPA810IDR is supplied in an 8-pin SOIC (D) package measuring 4.9mm × 6mm, with standard JEDEC MS-012AC footprint and exposed pad not present. Pin functions are validated per TI SBOS799E Rev E (2024).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | No connection (NC) | Internally unconnected; must remain floating or grounded per layout best practice to minimize parasitic coupling |
| 2 | Inverting input (VIN–) | Differential input node; high-impedance FET stage enables high-Z source interfacing without loading |
| 3 | Noninverting input (VIN+) | Differential input node; rail-to-rail common-mode range includes VS– and VS+ rails |
| 4 | Negative supply (VS–) | Power return for split supplies or ground reference in single-supply operation |
| 6 | Output (VO) | Class-AB output stage delivering 75mA linear current into resistive or capacitive loads |
| 7 | Positive supply (VS+) | Main power rail; supports up to +12V in split mode or +27V in single-ended configuration |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in low-voltage (5V) and high-voltage (±12V) systems without level-shifting circuitry |
| FET input stage | 2pA typical input bias current ensures minimal error in high-impedance sensor interfaces (e.g., pH electrodes, piezoresistive bridges) |
| Low 6.3nV/√Hz noise | Preserves SNR in wideband photodiode transimpedance amplifiers where noise dominates system resolution |
| Unity-gain stable | Eliminates need for external compensation in buffer, gain-of-two, or active filter configurations - simplifies layout |
| Extended temperature range | Guaranteed performance from –40°C to +125°C supports deployment in harsh environments without derating |
| Low 3.7mA quiescent current | Balances speed and power efficiency - suitable for portable instrumentation and multi-channel DAQ systems |
Applications
| Wideband Photodiode Transimpedance Amplifier | Analog Input/Output Module |
|---|---|
Use Scenario: Converting weak, fast photocurrents from avalanche photodiodes (APDs) into clean voltage signals for time-of-flight or LIDAR receivers. IC Role / Device Role / Timing Role: Primary transimpedance amplifier with low input capacitance (0.5pF) and 140MHz bandwidth to preserve pulse fidelity. Use Value: 6.3nV/√Hz input noise and 2pA bias current maximize signal-to-noise ratio for sub-nanosecond optical pulse detection. | Use Scenario: Signal conditioning front end in modular PLC I/O cards handling multiple sensor types (thermocouple, RTD, strain gauge). IC Role / Device Role / Timing Role: Precision buffer and level shifter between high-impedance sensors and SAR ADCs with 18-bit resolution. Use Value: Rail-to-rail I/O and ±500µV max offset enable full-scale utilization of ADC input range across varying supply voltages. |
| Impedance Measurement | Power Analyzer |
Use Scenario: Exciting DUTs with precise AC test signals and measuring complex impedance via synchronous demodulation in LCR meters. IC Role / Device Role / Timing Role: High-Z voltage follower and current source driver in four-wire Kelvin sensing configurations. Use Value: 12GΩ||2.5pF common-mode input impedance minimizes measurement error from cable capacitance and stray coupling. | Use Scenario: Isolated voltage/current sensing channel in three-phase energy meters and grid-edge inverters. IC Role / Device Role / Timing Role: High-speed, low-drift buffer for shunt-based current sensing before isolation and digitization. Use Value: 75mA output drive sustains accuracy into ADC input capacitance and isolation amplifier input stages without external gain boosting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed FET-input operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2810 | Dual-channel variant in same family; identical specs per channel but shares supply and thermal path | Preferred for space-constrained multi-channel DAQ where channel matching and layout symmetry matter | Select OPA2810 when two matched amplifiers are needed on one die - reduces board area and inter-channel skew |
| THS4631 | Higher slew rate (900V/µs) and bandwidth (210MHz), but higher IQ (13mA) and input voltage noise (7nV/√Hz) | Better suited for ultra-fast pulse amplification where speed outweighs power and noise constraints | Choose THS4631 only if >200MHz bandwidth or >500V/µs slew is mandatory; OPA810IDR offers better noise/power balance for most precision wideband uses |
Compared with OPA2810 and THS4631, the OPA810IDR provides optimal tradeoff of 140MHz bandwidth, 6.3nV/√Hz noise, and 3.7mA quiescent current in a single-channel SOIC-8 package - making it ideal for cost-sensitive, thermally constrained, or noise-critical high-speed analog front ends.
Availability
OPA810IDR is available at Aetrix Electronics and suitable for wideband photodiode transimpedance amplifiers, analog input/output modules, and impedance measurement systems requiring stable component supply, long-term manufacturability, and guaranteed extended temperature performance.
Supply support for OPA810IDR 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 high-performance op amps and precision signal-chain solutions.
The OPA810IDR belongs to TI's high-speed FET-input op amp product line, engineered for applications demanding simultaneous wide bandwidth, ultra-low input current, low noise, and rail-to-rail operation - particularly in test & measurement, industrial automation, and optical sensing.
FAQ
What is the maximum supply voltage for OPA810IDR?
The OPA810IDR supports a total supply voltage range of 4.75V to 27V. In split-supply operation, this corresponds to ±2.375V to ±12V (e.g., VS+ = +12V, VS– = –12V). Absolute maximum ratings specify ±14V, but recommended operation stays within ±12V to ensure reliability and specified performance. The OPA810IDR maintains full functionality across this range, including rail-to-rail output swing and stable 140MHz bandwidth.
Does OPA810IDR support single-supply operation?
Yes, the OPA810IDR fully supports single-supply operation from 4.75V to 27V. Its rail-to-rail input and output stages allow common-mode input voltage from VS– to VS+, and output swing within 110mV of each rail (e.g., VO = VS+ – 0.11V min at 10V supply). This enables direct interfacing with 5V microcontrollers, SAR ADCs, and DACs without level-shifting circuitry - verified in TI's SBOS799E electrical characteristics tables for 5V supply conditions.
What is the input bias current specification for OPA810IDR?
The OPA810IDR features a FET-input stage with typical input bias current of 2pA and maximum of 20pA over temperature (–40°C to +125°C). This ultra-low bias current is critical for high-impedance applications such as photodiode transimpedance amplifiers, pH electrode buffers, and impedance measurement circuits where leakage currents would otherwise dominate signal accuracy. Measured values are consistent across SOIC, SOT-23, and SC70 packages per TI's characterization data.
Can OPA810IDR drive capacitive loads?
Yes, the OPA810IDR is characterized to drive up to 10pF capacitive load without peaking or instability when configured with RS = 0Ω, as confirmed in Section 6.5–6.7 of the SBOS799E datasheet. For larger loads, external series resistance (e.g., 10–50Ω) at the output is recommended to maintain phase margin. Layout best practices - including short traces, proper grounding, and local bypassing - further enhance stability in high-frequency applications such as ADC driving or video signal conditioning.
Is OPA810IDR unity-gain stable?
Yes, the OPA810IDR is explicitly designed and characterized as unity-gain stable. Its small-signal bandwidth is specified at G = 1 (140MHz), and all AC performance metrics - including settling time, overshoot, and harmonic distortion - are validated under unity-gain conditions. No external compensation is required for buffer, follower, or gain-of-two configurations, simplifying design and reducing bill-of-materials count in precision analog signal paths.
OPA810IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 192V/µs
- Gain Bandwidth Product:
- 70 MHz
- -3db Bandwidth:
- 140 MHz
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 3.7mA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 4.75 V
- Voltage - Supply Span (Max):
- 27 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA810IDR FAQ
1.How can I place an order for OPA810IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA810IDR 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 OPA810IDR reliable?
The price and inventory of OPA810IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA810IDR is usually 5 days.
3.What payment methods are accepted for OPA810IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA810IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA810IDR?
OPA810IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA810IDR 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 OPA810IDR?
For technical support, including OPA810IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA810IDR requirements.
6.How does Aetrix verify that OPA810IDR is sourced from the original manufacturer or authorized distributors?
All OPA810IDR 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 OPA810IDR meets industry standards.
7.What is the process for return or replacement of OPA810IDR?
All OPA810IDR units undergo pre-shipment inspection (PSI). If there is an issue with OPA810IDR, 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 OPA810IDR part is unused and in its original packaging.
Return procedure for OPA810IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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