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Texas Instruments OPA207IDGKT
- Part No.:
- OPA207IDGKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA207IDGKT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,058
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Product details
Overview
OPA207IDGKT from Texas Instruments is a precision rail-to-rail output operational amplifier designed for low-noise, high-accuracy signal conditioning in industrial sensing and data acquisition. It delivers 150 µV max input offset voltage, ±1 µV/°C max drift, 1 MHz gain bandwidth, 3.6 V/µs slew rate, and operates from ±2.25 V to ±18 V supplies - enabling high-fidelity analog front-ends in battery-powered and wide-supply industrial transmitters.
For engineers reviewing the OPA207IDGKT datasheet, OPA207IDGKT pinout, OPA207IDGKT application, or OPA207IDGKT equivalent, key selection considerations include its ultra-low 0.1–10 Hz noise (0.16 µVPP), rail-to-rail output swing (≤30 mV from rail), and guaranteed performance across –40°C to +125°C - critical for pressure/temperature transmitter design, analog input modules, and battery test equipment where DC precision and thermal stability are non-negotiable.
Technical Context
The OPA207IDGKT employs super-beta bipolar input transistors with internal bias current cancellation, achieving ≤2.8 nA max input bias current over –40°C to +125°C - outperforming CMOS/JFET op amps at elevated temperatures. Its rail-to-rail output stage uses series-limiting resistors to maintain >120 dB open-loop gain while sourcing/sinking up to ±40 mA.
A novel slew-boost architecture enables 3.6 V/µs slew rate at only 375 µA quiescent current per amplifier, and EMI rejection ratio (EMIRR IN+) exceeds 100 dB below 100 MHz - ensuring robust operation in noisy industrial environments without external filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±150 µV (max) - ensures ≤0.001% error in 16-bit DAQ systems with ±10 V full-scale range |
| Offset Drift | ±1 µV/°C (max) - limits temperature-induced error to <15 µV over 15°C ambient shift |
| Gain Bandwidth | 1 MHz (typ) - supports stable unity-gain operation with ≥45° phase margin into 2 kΩ//100 pF loads |
| Slew Rate | 3.6 V/µs (typ) - achieves <5.4 µs settling to 0.01% for 10 V step, enabling fast sensor response capture |
| Supply Range | ±2.25 V to ±18 V - accommodates dual-supply industrial rails (±5 V, ±12 V, ±15 V) and single-supply 4.5–36 V systems |
| Output Swing | ≤30 mV from rail (no load, 25°C) - preserves dynamic range in low-voltage ADC interfaces (e.g., 3.3 V SAR converters) |
| Quiescent Current | 375 µA (max) per amplifier - enables dual-op-amp designs with <1 mW total dissipation at ±15 V |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65 mm lead pitch, exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No connect | Internally unconnected; must be left floating or tied to ground for mechanical stability |
| 2 | Inverting input (–IN) | Differential input node; accepts signals referenced to common-mode voltage range (V–)+1.25 V to (V+)-1.25 V |
| 3 | Non-inverting input (+IN) | Differential input node; EMI rejection optimized (EMIRR IN+ >100 dB below 100 MHz) |
| 4 | Negative supply (V–) | Lowest potential rail; requires local 0.1 µF ceramic decoupling to minimize PSRR degradation |
| 5 | No connect | Internally unconnected; no routing required |
| 6 | Output (OUT) | Rail-to-rail capable; drives ≥2 kΩ loads with <0.001% THD+N at 1 kHz and 3 VRMS |
| 7 | Positive supply (V+) | Highest potential rail; shares same decoupling best practice as V– |
| 8 | No connect | Internally unconnected; leave unconnected or ground for PCB symmetry |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 0.1–10 Hz noise | 0.16 µVPP - enables sub-µV resolution in precision weigh scales and strain gauge amplifiers |
| Input bias current cancellation | ≤2.8 nA max (–40°C to +125°C) - eliminates need for external bias-current compensation resistors |
| Rail-to-rail output stage | Swings within 30 mV of rails at no load - maximizes usable voltage range into 3.3 V or 5 V ADCs |
| EMI rejection ratio (EMIRR IN+) | >100 dB below 100 MHz - suppresses RF rectification errors in motor-drive or switch-mode power supply proximity |
| Unity-gain stability | Guaranteed with capacitive loads ≤200 pF - simplifies layout in sensor interface PCBs without isolation resistors |
Applications
| Pressure Transmitter | Temperature Transmitter |
|---|---|
Use Scenario: Amplifying millivolt-level output from piezoresistive pressure sensors in hazardous-area industrial field devices. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with programmable gain and 4–20 mA loop driver interface. Use Value: ±150 µV offset and ±1 µV/°C drift ensure <0.1%FS accuracy over –40°C to +85°C ambient, meeting IEC 61293 Class 0.1 requirements. |
Use Scenario: Conditioning RTD or thermocouple signals in distributed control system (DCS) analog input modules. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer and filter stage preceding 24-bit ΣΔ ADC. Use Value: 0.16 µVPP 0.1–10 Hz noise and rail-to-rail output preserve 20+ bit ENOB in cold-junction compensation circuits. |
| Analog Input Module | Battery Test Equipment |
Use Scenario: Multi-channel voltage/current measurement in PLC backplanes with shared ±15 V supplies. IC Role / Device Role / Timing Role: High-CMRR (115 dB min) differential receiver for isolated sensor inputs. Use Value: 115 dB CMRR rejects common-mode noise from adjacent 480 VAC motor drives, maintaining >14-bit linearity. |
Use Scenario: Precision voltage/current sourcing and measurement during lithium-ion cell formation and grading. IC Role / Device Role / Timing Role: Feedback amplifier in programmable current source with <10 ppm/°C thermal drift. Use Value: 375 µA quiescent current enables dual-op-amp per channel design with <2 mW/channel dissipation at ±12 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA211IDGKT | Lower 1/f noise (0.1 µVPP), higher GBW (4.7 MHz), but 3.6 mA IQ - 10× higher power than OPA207IDGKT | Better for high-speed precision DAC buffers; less suitable for battery-powered DAQ due to power | Select OPA211IDGKT when bandwidth >2 MHz and noise <0.12 µVPP are mandatory, accepting higher supply current |
| AD8628ARZ-REEL7 | Zero-drift architecture (0.005 µV/°C), but lower GBW (2.5 MHz), higher cost, and SOIC-8 only (no VSSOP) | Superior for <1 ppm/°C drift-critical applications like medical EEG amplifiers; lacks VSSOP footprint flexibility | Choose AD8628ARZ-REEL7 only when offset drift must be <10 nV/°C over –40°C to +125°C, and SOIC-8 is acceptable |
Compared with OPA207IDGKT, OPA211IDGKT trades 10× quiescent current for 4.7× bandwidth and slightly lower noise, while AD8628ARZ-REEL7 eliminates drift via auto-zeroing but sacrifices VSSOP packaging and increases unit cost by 2.3× - making OPA207IDGKT the optimal balance of low power, low noise, thermal stability, and compact VSSOP-8 footprint for industrial transmitters.
Availability
OPA207IDGKT is available at Aetrix Electronics and suitable for pressure transmitter design, analog input module development, and battery test equipment requiring stable component supply with guaranteed long-term industrial availability.
Supply support for OPA207IDGKT 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 precision op amp innovation including the industry-standard OP-07 and OP-177 families.
The OPA207IDGKT belongs to TI's precision op amp product line, engineered specifically for high-accuracy industrial sensing - replacing legacy chopper-stabilized and bipolar op amps with improved noise, speed, and power efficiency in harsh-temperature environments.
FAQ
What is the maximum operating temperature range for the OPA207IDGKT?
The OPA207IDGKT is specified for continuous operation from –40°C to +125°C ambient temperature. Electrical characteristics including input offset voltage (±225 µV max), offset drift (±1.1 µV/°C max), and open-loop gain (120 dB min) are guaranteed across this full industrial temperature range - enabling reliable deployment in engine control units, downhole oilfield tools, and factory automation systems.
Does the OPA207IDGKT require external bias current cancellation resistors?
No. The OPA207IDGKT integrates an internal input bias current cancellation technique using super-beta bipolar transistors, resulting in ≤2.8 nA max input bias current over –40°C to +125°C. Texas Instruments explicitly advises against adding external bias cancellation resistors, as they degrade common-mode rejection and introduce thermal EMF errors - unlike legacy op amps such as OP-177 that require them.
Can the OPA207IDGKT drive capacitive loads without instability?
Yes. The OPA207IDGKT is unity-gain stable and characterized to drive capacitive loads up to 200 pF without external isolation resistors. For loads >200 pF, a small series resistor (e.g., 25 Ω) between the output and capacitive load restores phase margin - demonstrated in Figure 13 of the SBOS826D datasheet. This capability simplifies sensor interface designs with long cables or piezoelectric elements.
How does the OPA207IDGKT compare to the OP-177 in power consumption?
The OPA207IDGKT consumes only 375 µA max quiescent current per amplifier - exactly half the 750 µA typical of the OP-177. This 2× reduction enables dual-amplifier configurations in space-constrained VSSOP-8 packages with <0.8 mW total dissipation at ±15 V, making it viable for portable calibration equipment and wireless sensor nodes where thermal and battery life constraints prohibit OP-177 use.
Is the OPA207IDGKT pin-compatible with other VSSOP-8 op amps?
The OPA207IDGKT uses standard VSSOP-8 pinout (pin 1 NC, pin 2 –IN, pin 3 +IN, pin 4 V–, pin 5 NC, pin 6 OUT, pin 7 V+, pin 8 NC), matching TI's OPAx171, OPAx182, and many industry-standard dual op amps. However, it is not a drop-in replacement for zero-drift or JFET-input VSSOP-8 op amps due to differences in input structure, noise profile, and supply current - always verify layout compatibility and perform bench validation.
OPA207IDGKT 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:
- 2.7V/µs
- Gain Bandwidth Product:
- 1.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 pA
- Voltage - Input Offset:
- 15 µV
- Current - Supply:
- 350µA
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA207IDGKT FAQ
1.How can I place an order for OPA207IDGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA207IDGKT 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 OPA207IDGKT reliable?
The price and inventory of OPA207IDGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA207IDGKT is usually 5 days.
3.What payment methods are accepted for OPA207IDGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA207IDGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA207IDGKT?
OPA207IDGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA207IDGKT 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 OPA207IDGKT?
For technical support, including OPA207IDGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA207IDGKT requirements.
6.How does Aetrix verify that OPA207IDGKT is sourced from the original manufacturer or authorized distributors?
All OPA207IDGKT 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 OPA207IDGKT meets industry standards.
7.What is the process for return or replacement of OPA207IDGKT?
All OPA207IDGKT units undergo pre-shipment inspection (PSI). If there is an issue with OPA207IDGKT, 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 OPA207IDGKT part is unused and in its original packaging.
Return procedure for OPA207IDGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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