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Texas Instruments OPA827AIDGKR
- Part No.:
- OPA827AIDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA827AIDGKR.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,152
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Product details
Overview
OPA827AIDGKR from Texas Instruments is a JFET-input precision operational amplifier optimized for low-noise, high-DC-accuracy signal conditioning in 16-bit to 18-bit mixed-signal systems. It delivers 4 nV/√Hz input voltage noise density at 1 kHz, 250 nVPP 0.1-Hz to 10-Hz noise, and 150 µV maximum input offset voltage across –40°C to 125°C, enabling use in transimpedance amplifiers and ±10-V precision front ends.
For engineers reviewing the OPA827AIDGKR datasheet, OPA827AIDGKR pinout, OPA827AIDGKR application, or OPA827AIDGKR equivalent, key selection criteria include its 22 MHz gain-bandwidth product, 28 V/µs slew rate, ±4 V to ±18 V dual-supply operation, and VSSOP-8 packaging for space-constrained high-fidelity analog designs.
Technical Context
The OPA827AIDGKR implements a unity-gain-stable JFET input stage with ultra-low input bias current (≤10 pA max) and high input impedance (>1013 Ω), making it suitable for high-source-impedance sensor interfaces and photodiode transimpedance applications. Its low 0.5 µV/°C typical offset drift and 2 µV/°C max specification ensure stable DC performance over industrial temperature ranges.
It features a 22 MHz gain-bandwidth product and 28 V/µs slew rate, supporting fast settling (550 ns to ±0.01%) into 100 pF loads while maintaining low THD+N (–128 dB at 1 kHz). The device operates from ±4 V to ±18 V supplies and exhibits no phase reversal under overload conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise Density | 4 nV/√Hz at 1 kHz - enables low-noise amplification of weak signals without dominating source thermal noise above ~2 kΩ source impedance |
| 0.1 Hz to 10 Hz Noise | 250 nVPP - supports precision DC-coupled measurements in seismic, medical, and test equipment where low-frequency drift matters |
| Input Offset Voltage | 150 µV max - ensures ≤0.0015% full-scale error in ±10-V systems, critical for 16-bit ADC driver accuracy |
| Gain-Bandwidth Product | 22 MHz - allows stable closed-loop gain ≥10 up to ~2 MHz, sufficient for anti-aliasing filters and DAC output buffering |
| Slew Rate | 28 V/µs - supports 10-V step response in <600 ns, meeting 16-bit settling (±0.00075%) requirements in high-speed data acquisition |
| Supply Range | ±4 V to ±18 V - accommodates wide dynamic range front ends and legacy ±15-V systems without level-shifting |
| Quiescent Current | 4.8 mA per channel - balances low-noise performance with power efficiency in battery- or thermally constrained instrumentation |
Pinout & Package
The OPA827AIDGKR is housed in an 8-pin VSSOP package (3.00 mm × 3.00 mm body size), optimized for high-density PCB layouts and thermal performance (RθJA = 180°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | No internal connection | Must be left floating; no routing or grounding required - simplifies layout and avoids parasitic coupling |
| 2 | Inverting input (–IN) | Differential input node for feedback networks; high impedance (>1013 Ω) minimizes loading on high-Z sources |
| 3 | Noninverting input (+IN) | Reference input for follower/buffer configurations; matched bias current reduces common-mode error |
| 4 | Negative supply (V–) | Return path for dual-supply operation; requires local 0.1-µF decoupling to suppress rail noise |
| 6 | Output (OUT) | Capable of sourcing/sinking ±30 mA; drives 100 pF loads with <1% overshoot and no phase reversal |
| 7 | Positive supply (V+) | Primary power rail; decoupling capacitor placement near this pin is critical for noise-sensitive applications |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 0.1–10 Hz noise | 250 nVPP enables stable baseline in DC-coupled medical sensors and precision integrators without high-pass filtering |
| JFET input architecture | ≤10 pA max input bias current preserves signal integrity in photodiode and piezoelectric transducer interfaces |
| High CMRR & PSRR | ≥114 dB CMRR and ≥114 dB PSRR at ±10 V supplies reject interference in noisy industrial environments |
| No phase reversal | Guaranteed non-inverting behavior during input overdrive prevents latch-up and system instability in protection circuits |
| Wide temperature range | Specified from –40°C to +125°C supports deployment in automotive engine control and downhole instrumentation |
Applications
| ADC Drivers | DAC Output Buffers |
|---|---|
Use Scenario: Driving SAR or sigma-delta ADC inputs with ±10-V full-scale range in automated test equipment. IC Role / Device Role / Timing Role: Precision buffer isolating DAC output from ADC sampling kickback; maintains linearity during 1-MSPS switching. Use Value: 150 µV max offset and 22 MHz GBW ensure <0.001% gain error and minimal settling delay before conversion. | Use Scenario: Buffering high-resolution DAC outputs in programmable power supplies and calibration standards. IC Role / Device Role / Timing Role: Low-drift, low-noise voltage follower delivering stable reference to load-regulation circuitry. Use Value: 2 µV/°C max drift and 4 nV/√Hz noise preserve DAC's 18-bit monotonicity and SNR over temperature. |
| Transimpedance Amplifiers | PLL Filters |
Use Scenario: Converting photocurrent from low-light optical sensors in analytical instrumentation. IC Role / Device Role / Timing Role: High-Z transimpedance stage converting pA-level current to voltage with minimal added noise. Use Value: 10 pA max bias current avoids signal loss; 2.2 fA/√Hz current noise dominates only above 100 MΩ feedback resistors. | Use Scenario: Active loop filter in frequency synthesizers for wireless base stations and radar systems. IC Role / Device Role / Timing Role: Low-drift integrator shaping PLL dynamics while rejecting supply ripple and digital noise. Use Value: 0.5 µV/°C typical drift and >114 dB PSRR prevent VCO tuning voltage drift and phase jitter degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA211AIDGKR | Lower 1.1 nV/√Hz voltage noise but higher 1.3 pA/√Hz current noise; 80 MHz GBW vs 22 MHz | Better for low-Z sources (<2 kΩ); less suitable for photodiode or high-R feedback TIA | Select OPA211AIDGKR when voltage noise dominates and bandwidth >30 MHz is required; retain OPA827AIDGKR for high-Z, low-drift, or wide-supply applications |
| ADA4625-1ACPZ-R7 | Similar 2.9 nV/√Hz noise and 1 pA bias current; 33 MHz GBW; specified to +125°C but lower PSRR (105 dB) | Higher bandwidth but reduced power-supply rejection limits use in noisy mixed-signal PCBs | Choose ADA4625-1ACPZ-R7 for faster settling in clean supply environments; prefer OPA827AIDGKR where PSRR >114 dB or ±18-V operation is mandatory |
Compared with OPA211AIDGKR and ADA4625-1ACPZ-R7, the OPA827AIDGKR provides superior low-frequency noise stability, wider supply range, and higher PSRR-making it the preferred choice for ±15-V industrial front ends, seismic charge amplifiers, and precision integrators requiring long-term DC accuracy.
Availability
OPA827AIDGKR is available at Aetrix Electronics and suitable for ADC drivers, transimpedance amplifiers, and precision ±10-V front ends requiring stable component supply across extended temperature and voltage ranges.
Supply support for OPA827AIDGKR 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 OPA827AIDGKR belongs to TI's precision JFET op amp family, engineered for high-accuracy, low-noise signal conditioning in test & measurement, medical imaging, and industrial process control systems.
FAQ
What is the maximum input offset voltage specification for OPA827AIDGKR over temperature?
The OPA827AIDGKR has a maximum input offset voltage of 150 µV at 25°C, and this specification is guaranteed across the full operating temperature range of –40°C to +125°C per the datasheet's Electrical Characteristics table. This tight DC accuracy enables direct interfacing with 16-bit ADCs without trimming in many applications.
Does OPA827AIDGKR support single-supply operation?
Yes, the OPA827AIDGKR supports single-supply operation from 8 V to 36 V (e.g., +5 V to +36 V with ground referenced), as confirmed in Section 7.3.1 of the datasheet. Its input common-mode range extends to within 3 V of each rail, and output swing reaches within 3 V of both rails under 1-kΩ load, enabling true single-supply design flexibility.
What decoupling is recommended for OPA827AIDGKR in noise-sensitive applications?
Texas Instruments recommends placing a 0.1-µF ceramic capacitor close to each supply pin (V+ and V–) of the OPA827AIDGKR, as stated in Section 7.1. For ultra-low-noise applications, adding a parallel 10-µF tantalum or aluminum electrolytic capacitor improves low-frequency supply rejection and stabilizes rail impedance.
Is OPA827AIDGKR pin-compatible with other members of the OPA827 family?
Yes, the OPA827AIDGKR shares identical pinout and footprint with the SOIC-packaged OPA827AIDR and all other variants in the OPA827 family, including the OPA827AID (SOIC-8) and OPA827AIDGK (VSSOP-8). All variants use the same 8-pin configuration with NC pins at positions 1, 5, and 8.
What is the minimum load capacitance the OPA827AIDGKR can drive without instability?
The OPA827AIDGKR is unity-gain stable and characterized to drive ≥100 pF capacitive loads with <1% overshoot and no phase reversal, as shown in Figure 28 of the datasheet. For loads >100 pF, external compensation (e.g., series resistor at output) may be required to maintain stability in high-precision applications.
OPA827AIDGKR 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:
- J-FET
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 28V/µs
- Gain Bandwidth Product:
- 22 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 pA
- Voltage - Input Offset:
- 75 µV
- Current - Supply:
- 4.8mA
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA827AIDGKR FAQ
1.How can I place an order for OPA827AIDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA827AIDGKR 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 OPA827AIDGKR reliable?
The price and inventory of OPA827AIDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA827AIDGKR is usually 5 days.
3.What payment methods are accepted for OPA827AIDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA827AIDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA827AIDGKR?
OPA827AIDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA827AIDGKR 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 OPA827AIDGKR?
For technical support, including OPA827AIDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA827AIDGKR requirements.
6.How does Aetrix verify that OPA827AIDGKR is sourced from the original manufacturer or authorized distributors?
All OPA827AIDGKR 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 OPA827AIDGKR meets industry standards.
7.What is the process for return or replacement of OPA827AIDGKR?
All OPA827AIDGKR units undergo pre-shipment inspection (PSI). If there is an issue with OPA827AIDGKR, 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 OPA827AIDGKR part is unused and in its original packaging.
Return procedure for OPA827AIDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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