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Texas Instruments OPA211MDGKTEP
- Part No.:
- OPA211MDGKTEP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA211MDGKTEP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:176
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Product details
Overview
OPA211MDGKTEP from Texas Instruments is a radiation-hardened, high-precision, low-noise operational amplifier in an MSOP-8 package, delivering 1.1nV/√Hz input voltage noise density at 1kHz, 700ns 16-bit settling time, and rail-to-rail output swing across ±2.25V to ±18V supplies - used in PLL loop filters and 16-bit ADC driver stages for defense-grade signal acquisition.
For engineers reviewing the OPA211MDGKTEP datasheet, OPA211MDGKTEP pinout, OPA211MDGKTEP application, or OPA211MDGKTEP equivalent, key selection criteria include ultra-low noise performance under wide temperature (–55°C to +125°C), shutdown functionality with sub-μs enable/disable timing, and guaranteed offset drift of 0.35μV/°C for precision analog front-ends in aerospace instrumentation.
Technical Context
The OPA211MDGKTEP employs a SiGe bipolar process enabling both low voltage noise (1.1nV/√Hz) and low current noise (1.7pA/√Hz at 1kHz), supporting high-fidelity signal conditioning where source impedances range from <2kΩ to 100kΩ. Its unity-gain stability, 80MHz gain-bandwidth product at G=100, and 27V/μs slew rate allow accurate amplification of fast, low-amplitude sensor outputs without phase reversal.
Designed for extended-life military/aerospace systems, it integrates controlled baseline manufacturing, single-fab/single-test-site traceability, and ESD protection (HBM 3000V, CDM 1000V). The shutdown pin operates referenced to V+, enabling precise power sequencing in multi-rail avionics subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Density | 1.1nV/√Hz at 1kHz - enables detection of microvolt-level signals in geophone/hydrophone amplifiers without noise floor degradation. |
| Settling Time | 700ns to 16-bit accuracy (±0.00075%) - ensures full-resolution sampling in high-speed data acquisition with 10V output swings. |
| Offset Drift | 0.35μV/°C (typ) - maintains calibration integrity over –55°C to +125°C operating range in unheated satellite payloads. |
| Supply Range | ±2.25V to ±18V or +4.5V to +36V - supports asymmetric rails (e.g., +25V/–5V) in mixed-signal test equipment without level-shifting. |
| Shutdown Current | 1–20μA (disabled) - reduces standby power in battery-backed medical telemetry modules during sleep cycles. |
| Output Drive | ±30mA short-circuit current - directly drives 600Ω audio loads or 10kΩ ADC inputs without external buffers. |
| THD+N | –136dB at 1kHz (G=1) - preserves dynamic range in professional audio preamplifiers and ultrasound beamforming circuits. |
Pinout & Package
OPA211MDGKTEP is housed in an MSOP-8 (DGK) package with exposed pad for thermal enhancement, rated for –55°C to +125°C operation and qualified per MIL-PRF-38535 Class V requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SHDN) | Shutdown control input | Referenced to V+; device enabled when ≤(V+)–3V, disabled when ≥(V+)–0.35V - enables synchronized power-down in multi-amplifier timing chains. |
| 2 (–IN) | Inverting input | Differential input node with 10⁹Ω||2pF common-mode impedance - accepts low-current sensor signals while rejecting supply ripple via CMRR >114dB. |
| 3 (+IN) | Non-inverting input | High-impedance input with 20kΩ||8pF differential impedance - interfaces directly with high-Z piezoelectric transducers or DAC outputs. |
| 4 (V–) | Negative supply rail | Accepts –2.25V to –18V; internal ESD diodes clamp to V–, requiring external series resistors if input exceeds (V–)–0.5V. |
| 5 (OUT) | Amplified output | Rail-to-rail swing (V–)+0.2V to (V+)-0.2V into 10kΩ - delivers full-scale 10Vpp signals to SAR ADCs without headroom loss. |
| 6 (NC) | No internal connection | Unbonded die pad; must be left floating or grounded per layout guidelines to avoid parasitic coupling. |
| 7 (NC) | No internal connection | Unbonded die pad; no electrical function - omitted from schematic symbol but present in physical package outline. |
| 8 (V+) | Positive supply rail | Accepts +2.25V to +18V or +4.5V to +36V; shutdown logic and biasing referenced to this pin - mandates local 0.1μF decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise architecture | 1.1nV/√Hz voltage noise + 1.7pA/√Hz current noise enables optimal SNR in <10kΩ source impedance applications like infrared detector amps. |
| 16-bit settling performance | 700ns to ±0.00075% error over 10V swing - eliminates wait states in 1MSPS precision DAQ systems using 16-bit ADCs. |
| Extended temperature operation | Specified from –55°C to +125°C with controlled baseline - supports deployment in engine-mounted sensors and spaceborne payloads without derating. |
| Shutdown with fast transition | 2μs turn-on / 3μs turn-off - allows dynamic power gating in portable medical ultrasound handsets between imaging frames. |
| Rail-to-rail output | Drives to within 200mV of either rail into 10kΩ - maximizes usable dynamic range in single-supply +5V or +3.3V data loggers. |
Applications
| PLL Loop Filter Amplifier | 16-Bit ADC Driver |
|---|---|
Use Scenario: Stabilizing phase-locked loops in frequency synthesizers for radar transceivers operating in harsh RF environments. IC Role / Device Role / Timing Role: Low-noise integrator in third-order passive loop filter, rejecting reference spurs while preserving loop dynamics. Use Value: 1.1nV/√Hz noise density prevents jitter multiplication in 10GHz LO generation, maintaining EVM <1.5% in pulsed Doppler systems. | Use Scenario: Buffering and gain-setting stage preceding 16-bit SAR ADCs in automated test equipment measuring millivolt-level thermocouple outputs. IC Role / Device Role / Timing Role: Precision driver with 700ns 16-bit settling, ensuring full-resolution digitization without aperture uncertainty. Use Value: 0.35μV/°C offset drift guarantees <±1 LSB error over –40°C to +85°C ambient, eliminating recalibration in field-deployed calibrators. |
| DAC Output Amplifier | Ultrasound Amplifier |
Use Scenario: Amplifying high-resolution DAC outputs in programmable power supply controllers requiring <0.01% line regulation. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer isolating DAC core from load variations and PCB trace capacitance. Use Value: Rail-to-rail output swing delivers full 0–10V control range from +12V single supply, while THD+N <–136dB preserves DAC spectral purity. | Use Scenario: First-stage amplification of weak echo signals from piezoelectric transducers in portable diagnostic ultrasound scanners. IC Role / Device Role / Timing Role: Ultra-low-noise preamplifier with shutdown capability synchronized to transmit pulses. Use Value: 80nVPP (0.1Hz–10Hz) input noise enables detection of sub-millivolt echoes from deep-tissue structures, improving contrast resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA227MDR | Higher voltage noise (3.5nV/√Hz), lower current noise (0.6pA/√Hz), no shutdown, SOIC-8 only | Better suited for high-source-impedance photodiode amps (>100kΩ); lacks radiation hardening and extended temp range | Select for cost-sensitive industrial DAC buffers where military qualification is unnecessary |
| OPA189IDBVR | Zero-drift architecture (0.005μV/°C), higher quiescent current (1.3mA), 12V max supply, SOT-23-5 | Superior DC accuracy for strain-gauge bridges; insufficient bandwidth (12MHz GBW) for PLL loop filters | Choose for ultra-stable DC-coupled sensor interfaces where AC performance is secondary |
Compared with OPA227MDR and OPA189IDBVR, the OPA211MDGKTEP uniquely balances ultra-low broadband noise, military-grade reliability, and integrated shutdown - making it irreplaceable in radiation-tolerant, wide-temperature, high-dynamic-range signal chains where both precision and robustness are non-negotiable.
Availability
OPA211MDGKTEP is available at Aetrix Electronics and suitable for defense avionics, medical imaging systems, and seismic data acquisition requiring stable component supply across extended product lifecycles and extreme environmental conditions.
Supply support for OPA211MDGKTEP 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 heritage in high-reliability aerospace and defense components.
The OPA211MDGKTEP belongs to TI's enhanced-product (EP) op amp family, engineered specifically for mission-critical applications demanding extended temperature operation, controlled manufacturing, and long-term availability in defense, space, and medical systems.
FAQ
What is the maximum operating temperature range for the OPA211MDGKTEP?
The OPA211MDGKTEP is fully specified from –55°C to +125°C ambient temperature, with absolute maximum junction temperature rated at 200°C. This extended range is validated per MIL-PRF-38535 Class V requirements and supports deployment in engine compartments, satellite payloads, and downhole oilfield tools without thermal derating.
Does the OPA211MDGKTEP require external compensation for unity-gain stability?
No, the OPA211MDGKTEP is internally compensated and unity-gain stable across its full operating range. It drives capacitive loads up to 100pF without oscillation and maintains phase margin >45° at G=1, eliminating the need for external compensation networks in precision buffer or gain-of-one configurations.
How does the shutdown function behave on the OPA211MDGKTEP?
When the SHDN pin is driven to ≥(V+)–0.35V, the OPA211MDGKTEP enters shutdown mode, reducing quiescent current to 1–20μA and placing the output in high-impedance state. Turn-off time is 3μs; turn-on time is 2μs. The pin is referenced solely to V+, not ground - critical for proper operation with asymmetric supplies.
What is the typical input offset voltage and drift for the OPA211MDGKTEP?
The OPA211MDGKTEP has a maximum input offset voltage of ±180μV over temperature and a typical drift of 0.35μV/°C. At +25°C, the typical offset is ±100μV. These values are guaranteed across –55°C to +125°C and support high-accuracy DC measurements in uncalibrated field instruments.
Can the OPA211MDGKTEP drive a 600Ω load at ±15V supply?
Yes, the OPA211MDGKTEP delivers ±30mA short-circuit current and sustains ±15V output swing into 600Ω loads with THD+N <–136dB at 1kHz. Its rail-to-rail output stage ensures full 30Vpp signal delivery without clipping, making it suitable for professional audio line drivers and test equipment output stages.
OPA211MDGKTEP 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:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 27V/µs
- Gain Bandwidth Product:
- 80 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 nA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- 3.6mA
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA211MDGKTEP FAQ
1.How can I place an order for OPA211MDGKTEP through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA211MDGKTEP 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 OPA211MDGKTEP reliable?
The price and inventory of OPA211MDGKTEP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA211MDGKTEP is usually 5 days.
3.What payment methods are accepted for OPA211MDGKTEP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA211MDGKTEP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA211MDGKTEP?
OPA211MDGKTEP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA211MDGKTEP 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 OPA211MDGKTEP?
For technical support, including OPA211MDGKTEP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA211MDGKTEP requirements.
6.How does Aetrix verify that OPA211MDGKTEP is sourced from the original manufacturer or authorized distributors?
All OPA211MDGKTEP 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 OPA211MDGKTEP meets industry standards.
7.What is the process for return or replacement of OPA211MDGKTEP?
All OPA211MDGKTEP units undergo pre-shipment inspection (PSI). If there is an issue with OPA211MDGKTEP, 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 OPA211MDGKTEP part is unused and in its original packaging.
Return procedure for OPA211MDGKTEP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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