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Texas Instruments OPA2810IDGKT
- Part No.:
- OPA2810IDGKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2810IDGKT.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,416
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Product details
Overview
OPA2810IDGKT from Texas Instruments is a dual-channel, rail-to-rail input/output FET-input operational amplifier optimized for high-fidelity signal acquisition. It delivers 70 MHz gain-bandwidth product, 192 V/µs slew rate, and ultra-low 6 nV/√Hz input voltage noise at 500 kHz - enabling precision wideband photodiode transimpedance amplification and multichannel sensor interface applications with ±2.5 V to ±13.5 V (4.75–27 V) supply operation.
For engineers reviewing the OPA2810IDGKT datasheet, OPA2810IDGKT pinout, OPA2810IDGKT application, or OPA2810IDGKT equivalent, key selection criteria include its FET-input bias current (2 pA typ), linear 75 mA output drive, –134 dBc HD3 at 100 kHz, extended –40°C to +125°C temperature rating, and VSSOP-8 package compatibility with space-constrained analog front-ends.
Technical Context
The OPA2810IDGKT employs a proprietary SiGe BiCMOS process to achieve unity-gain stability with 105 MHz small-signal bandwidth while maintaining DC precision: ±1.5 mV max input offset, ±2 µV/°C typical drift, and 120 dB open-loop gain. Its dual independent amplifier cores feature matched GBWP (<3% channel mismatch) and –93 dBc crosstalk at 100 kHz.
It integrates a high-voltage JFET input stage with auxiliary CMOS input for rail-to-rail common-mode range (down to VS– – 0.2 V and up to VS+ + 0.2 V), supporting single-supply (5 V) and split-supply (±12 V) configurations without performance compromise in noise, distortion, or output swing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 70 MHz - enables stable G = 1 to G = 10 closed-loop designs with predictable bandwidth scaling |
| Slew rate | 192 V/µs (at ±12 V) - supports clean 2-V step response in <5 ns with <5% overshoot |
| Input voltage noise | 6 nV/√Hz at 500 kHz - preserves SNR in photodiode and impedance measurement circuits |
| Input bias current | 2 pA typical - minimizes error in high-Z sensor interfaces and transimpedance feedback networks |
| Output drive | 75 mA linear sourcing/sinking - directly drives ADC inputs, DAC buffers, or optoelectronic loads without external boost |
| Supply range | 4.75 V to 27 V - operates from single 5 V up to ±13.5 V rails, simplifying mixed-voltage system design |
| Temperature range | –40°C to +125°C - qualified for industrial, automotive under-hood, and power analyzer environments |
Pinout & Package
The OPA2810IDGKT is packaged in an 8-pin VSSOP (DGK) with 3.00 mm × 3.00 mm body size, 0.65 mm pitch, and exposed thermal pad for enhanced power dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VO1) | Amplifier 1 output | Low-impedance buffered output capable of ±75 mA linear drive into 51 Ω loads |
| 2 (VIN1–) | Amplifier 1 inverting input | FET-input node with 0.5 pF differential capacitance and 12 GΩ||2.5 pF common-mode impedance |
| 3 (VIN1+) | Amplifier 1 noninverting input | High-impedance input compatible with rail-to-rail common-mode range (VS– – 0.2 V to VS+ + 0.2 V) |
| 4 (VS–) | Negative power supply | Reference for internal biasing; supports ground-referenced or negative rail operation |
| 5 (VIN2+) | Amplifier 2 noninverting input | Matched to VIN1+ with <2.5 mV offset mismatch and –93 dBc inter-channel crosstalk |
| 6 (VIN2–) | Amplifier 2 inverting input | Identical electrical characteristics to VIN1–; enables dual-channel synchronous signal conditioning |
| 7 (VO2) | Amplifier 2 output | Independent output with same AC/DC specs as VO1; no shared output stage coupling |
| 8 (VS+) | Positive power supply | Accepts up to 27 V total supply; PSRR >90 dB ensures immunity to supply ripple |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Operates with input down to VS– – 0.2 V and output swing within 110 mV of rails at 667 Ω load - eliminates level-shifting in single-supply systems |
| Ultra-low input current noise | 5 fA/√Hz at 10 kHz - critical for low-current photodiode and electrochemical sensor front-ends |
| Harmonic distortion performance | –134 dBc HD3 at 100 kHz (RL = 1 kΩ, 2 VPP) - enables high-dynamic-range power analyzer and spectral analysis |
| Thermal robustness | Rated for continuous operation at +125°C ambient with RθJA = 177.2°C/W (VSSOP) - supports high-density PCB placement |
| Unity-gain stability | Stable at G = 1 with >105 MHz bandwidth - allows direct buffering without external compensation components |
Applications
| Wideband Photodiode Transimpedance Amplifier | High-Z Front-End Sensor Interface |
|---|---|
Use Scenario: Converting nanoamp-level photocurrent from fast-response photodiodes into low-noise voltage signals for optical communications or LIDAR time-of-flight measurement. IC Role / Device Role / Timing Role: Primary transimpedance amplifier with FET-input stage minimizing bias current-induced offset and Johnson noise. Use Value: 6 nV/√Hz input voltage noise and 2 pA input bias current preserve signal integrity at bandwidths up to 105 MHz. | Use Scenario: Conditioning high-impedance outputs from pH electrodes, piezoresistive sensors, or MEMS accelerometers in portable test equipment. IC Role / Device Role / Timing Role: High-input-impedance buffer and gain stage before ADC sampling, rejecting common-mode interference. Use Value: 12 GΩ||2.5 pF common-mode input impedance and 85–105 dB CMRR maintain accuracy across –40°C to +125°C. |
| Power Analyzer Signal Chain | Multichannel Data Acquisition System |
Use Scenario: Isolating and amplifying voltage/current waveforms in three-phase energy meters and industrial power quality analyzers. IC Role / Device Role / Timing Role: Precision gain block driving 16-bit+ SAR ADCs with minimal settling time and harmonic distortion. Use Value: 73 ns settling to 0.1% and –123 dBc HD2 at 100 kHz ensure accurate RMS, THD, and harmonic spectrum calculation. | Use Scenario: Simultaneous analog signal conditioning across 8+ channels in automated test equipment or structural health monitoring nodes. IC Role / Device Role / Timing Role: Dual-channel matched amplifier providing identical gain, phase, and noise performance per channel. Use Value: <3% GBWP mismatch and –93 dBc crosstalk enable coherent multi-channel sampling without inter-channel interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed FET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA810IDBVR | Single-channel variant; 200 V/µs slew rate; 6.3 nV/√Hz noise; same GBWP and supply range | Used where board space or channel count permits single-amplifier implementation | Select OPA810IDBVR when only one high-speed channel is needed and VSSOP-5 footprint is acceptable |
| THS4631D | Higher 210 MHz GBWP but 13 mA/channel IQ; 7 nV/√Hz noise; ±15 V max supply | Targeted at ultra-wideband RF/IF gain blocks where power efficiency is secondary | Choose THS4631D only if >105 MHz bandwidth is mandatory and quiescent current budget allows 3.6× increase |
Compared with OPA2810IDGKT, OPA810IDBVR reduces channel count and board area but requires separate devices per signal path, while THS4631D trades 3.6× higher supply current for marginal bandwidth gain - making OPA2810IDGKT optimal for dual-channel, low-power, high-precision analog front-ends.
Availability
OPA2810IDGKT is available at Aetrix Electronics and suitable for wideband photodiode transimpedance amplifiers, high-Z front-ends, and multichannel sensor interface applications requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for OPA2810IDGKT 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The OPA2810IDGKT belongs to TI's high-speed precision op-amp portfolio, engineered specifically for data acquisition systems demanding simultaneous wide bandwidth, low noise, rail-to-rail operation, and robust thermal performance in compact packages.
FAQ
What is the maximum supply voltage for OPA2810IDGKT?
The OPA2810IDGKT supports a total supply voltage range of 4.75 V to 27 V, corresponding to ±13.5 V split supplies or single 5–27 V operation. Absolute maximum ratings specify ±14 V total supply (VS+ – VS–), but recommended operation stays within 27 V to ensure reliability and specified performance across temperature.
Does OPA2810IDGKT require external compensation for unity-gain stability?
No, the OPA2810IDGKT is internally compensated for unity-gain stability and achieves 105 MHz small-signal bandwidth at G = 1 with RF = 0 Ω. No external capacitors or resistors are needed for stable operation in buffer or gain-of-one configurations per the datasheet's tested conditions.
What is the input common-mode voltage range of OPA2810IDGKT?
The OPA2810IDGKT supports rail-to-rail input with a common-mode range extending from VS– – 0.2 V to VS+ + 0.2 V at TA = –40°C to +125°C. This allows direct interfacing with sensors operating near supply rails and eliminates need for input level-shifting circuitry in single-supply systems.
Can OPA2810IDGKT drive heavy capacitive loads?
The OPA2810IDGKT is characterized to drive up to 35 pF capacitive load with <1 dB peaking when RS = 0 Ω. For heavier loads (e.g., ADC input capacitance >35 pF), a series isolation resistor (typically 10–50 Ω) is recommended between the OPA2810IDGKT output and the load to maintain stability and settling performance.
What package type is used for OPA2810IDGKT?
The OPA2810IDGKT uses the DGK package: an 8-pin Very Small Outline Package (VSSOP) with 3.00 mm × 3.00 mm body size, 0.65 mm lead pitch, and exposed thermal pad. This package provides superior thermal performance (RθJA = 177.2°C/W) and space efficiency compared to SOIC or SOT-23 alternatives.
OPA2810IDGKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 243V/µs
- Gain Bandwidth Product:
- 70 MHz
- -3db Bandwidth:
- 105 MHz
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 3.7mA (x2 Channels)
- Current - Output / Channel:
- 108 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-VSSOP
OPA2810IDGKT FAQ
1.How can I place an order for OPA2810IDGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2810IDGKT 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 OPA2810IDGKT reliable?
The price and inventory of OPA2810IDGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2810IDGKT is usually 5 days.
3.What payment methods are accepted for OPA2810IDGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2810IDGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2810IDGKT?
OPA2810IDGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2810IDGKT 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 OPA2810IDGKT?
For technical support, including OPA2810IDGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2810IDGKT requirements.
6.How does Aetrix verify that OPA2810IDGKT is sourced from the original manufacturer or authorized distributors?
All OPA2810IDGKT 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 OPA2810IDGKT meets industry standards.
7.What is the process for return or replacement of OPA2810IDGKT?
All OPA2810IDGKT units undergo pre-shipment inspection (PSI). If there is an issue with OPA2810IDGKT, 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 OPA2810IDGKT part is unused and in its original packaging.
Return procedure for OPA2810IDGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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