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Texas Instruments OPA202IDGKT
- Part No.:
- OPA202IDGKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA202IDGKT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:580
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Product details
Overview
OPA202IDGKT from Texas Instruments is a precision, low-noise, heavy capacitive-load–driving operational amplifier in an 8-pin VSSOP package. It delivers ±200 µV max offset voltage, 1 MHz gain-bandwidth, 9 nV/√Hz input voltage noise at 1 kHz, ±18 V dual-supply operation, and stable drive of up to 25 nF loads - enabling high-accuracy signal conditioning in data acquisition front-ends.
For engineers reviewing the OPA202IDGKT datasheet, OPA202IDGKT pinout, OPA202IDGKT application, or OPA202IDGKT equivalent, key selection criteria include ultra-low drift (±1 µV/°C max), EMI-hardened design, 580 µA quiescent current, rail-to-rail output swing capability, and guaranteed performance across –40°C to +105°C industrial temperature range.
Technical Context
The OPA202IDGKT uses TI's precision super-beta complementary bipolar process to achieve ultra-low flicker noise and exceptional DC accuracy. Its architecture eliminates phase inversion and supports unity-gain stability with heavy capacitive loads up to 25 nF without external compensation.
It features 3000 GΩ input impedance and 0.5 pF input capacitance, enabling high-impedance sensor interfacing. The device maintains 126 dB minimum CMRR and PSRR over full temperature and supply range, ensuring robust common-mode and power-supply rejection in noisy environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | ±200 µV maximum - ensures ≤0.2 mV error in 10 V full-scale systems without trimming |
| Drift | ±1 µV/°C maximum - limits thermal-induced error to <1 µV over 10°C ambient shift |
| Gain-Bandwidth | 1 MHz - supports stable closed-loop operation up to 100 kHz at G = 10 |
| Voltage Noise | 9 nV/√Hz at 1 kHz - preserves SNR in µV-level sensor amplification stages |
| Capacitive Load Drive | 25 nF with 5-µs settling to 0.1% - enables direct driving of ADC input filters or long cables |
| Supply Range | ±2.25 V to ±18 V - accommodates both low-voltage portable and high-voltage industrial rails |
| Quiescent Current | 580 µA typical per amplifier - allows dual-channel operation under 1.2 mA total for battery-sensitive designs |
Pinout & Package
OPA202IDGKT is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm, optimized for space-constrained PCB layouts while maintaining thermal performance (RθJA = 190.8°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output - drives loads up to 25 nF with controlled overshoot and 32 µs 0.01% settling |
| 2 | –IN | Inverting input - high-impedance node (3000 GΩ) with 0.5 pF capacitance for precision feedback networks |
| 3 | +IN | Noninverting input - matched to –IN for minimal input offset current (±250 pA max) |
| 4 | V– | Negative supply rail - supports dual-supply operation down to ±2.25 V |
| 5 | NC | No internal connection - electrically isolated; may be left floating or grounded for mechanical stability |
| 6 | NC | No internal connection - same as Pin 5; no circuit function |
| 7 | V+ | Positive supply rail - accepts up to ±18 V; PSRR ≥126 dB minimizes supply ripple coupling |
| 8 | NC | No internal connection - same as Pins 5 and 6; no electrical role |
Key Features
| Feature | Design Value |
|---|---|
| Precision super-beta bipolar process | Delivers 0.2 µVPP (0.1–10 Hz) noise and ±1 µV/°C drift - critical for DC-coupled instrumentation |
| Heavy capacitive load drive | Stable with 25 nF; 5-µs settling time - eliminates need for isolation resistors in anti-aliasing filter interfaces |
| EMI hardening | Integrated filtering rejects RF interference up to 1 GHz - prevents corruption in industrial EMI environments |
| Ultra-high input impedance | 3000 GΩ || 0.5 pF - minimizes loading error on high-Z sources like piezoelectric sensors or pH electrodes |
| No phase reversal | Guaranteed behavior beyond input common-mode range - prevents latch-up in overvoltage transients |
Applications
| Data Acquisition Front-End | Lab Instrumentation Amplifier |
|---|---|
Use Scenario: Precision analog input stage for 18-bit SAR ADCs in modular DAQ systems. IC Role / Device Role / Timing Role: Signal-conditioning op-amp buffering and gain-setting before ADC sampling. Use Value: ±200 µV offset and ±1 µV/°C drift ensure <0.01% FSR error over temperature without calibration. |
Use Scenario: Low-noise preamplifier in benchtop multimeters and source-measure units. IC Role / Device Role / Timing Role: High-impedance, low-drift gain stage for µV-level voltage measurements. Use Value: 9 nV/√Hz noise and 3000 GΩ input impedance preserve resolution when measuring high-Z DUTs. |
| Multiparameter Patient Monitor | String Inverter Sensor Interface |
Use Scenario: Biopotential signal amplification (ECG, EEG) with stringent safety and accuracy requirements. IC Role / Device Role / Timing Role: Isolated front-end amplifier with EMI hardening for medical-grade signal integrity. Use Value: EMI hardening and 126 dB PSRR suppress switching noise from nearby DC-DC converters and digital logic. |
Use Scenario: Voltage sensing of photovoltaic string outputs in solar inverters operating at –40°C to +105°C. IC Role / Device Role / Timing Role: High-common-mode-rejection differential amplifier for floating DC bus monitoring. Use Value: 126 dB CMRR and guaranteed operation to +105°C enable accurate MPPT control under desert thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2182IDGKT | Lower offset (±4 µV max), higher IQ (700 µA), same 8-pin VSSOP | Better for zero-calibration-free µV-level measurement; less suitable for ultra-low-power battery systems | Choose OPA2182IDGKT when offset dominates error budget and power is secondary |
| AD8628ARZ-REEL7 | Chopper-stabilized (0.05 µV/°C drift), higher noise (22 nV/√Hz), SOIC-8 only | Superior drift performance but higher broadband noise; not rated for >105°C operation | Choose AD8628ARZ-REEL7 for sub-µV/°C drift needs in commercial-temperature lab gear |
Compared with OPA202IDGKT, OPA2182IDGKT trades lower offset for higher quiescent current, while AD8628ARZ-REEL7 offers chopper-based drift suppression at the cost of increased voltage noise and narrower temperature range - making OPA202IDGKT optimal for industrial DAQ requiring balanced precision, noise, power, and temperature resilience.
Availability
OPA202IDGKT is available at Aetrix Electronics and suitable for data acquisition systems, lab instrumentation, and industrial sensor interfaces requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for OPA202IDGKT 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 industrial-grade IC design.
The OPAx202 family was engineered specifically for high-accuracy, noise-sensitive applications demanding robustness against EMI, thermal drift, and capacitive loading - targeting industrial, medical, and test equipment markets.
FAQ
What is the maximum capacitive load the OPA202IDGKT can drive stably?
The OPA202IDGKT is specified to drive up to 25 nF capacitive loads with guaranteed stability and 5-µs settling time to 0.1%. This capability eliminates the need for series isolation resistors when interfacing with ADC input filters or long PCB traces, preserving signal integrity without external compensation. The OPA202IDGKT achieves this via internal compensation optimized for heavy capacitive loading.
Does the OPA202IDGKT support single-supply operation?
Yes, the OPA202IDGKT supports single-supply operation from 4.5 V to 36 V, in addition to dual-supply ranges from ±2.25 V to ±18 V. Its input common-mode range extends to within 1.5 V of each rail, and output swings to within 750 mV of the rails (at no load), enabling use in rail-to-rail–compatible configurations. The OPA202IDGKT maintains full specification compliance across this entire supply range.
How does the OPA202IDGKT handle EMI in noisy industrial environments?
The OPA202IDGKT incorporates integrated EMI hardening circuitry that attenuates RF interference up to 1 GHz, preventing rectification artifacts and output corruption. This is validated by EMIRR (Electromagnetic Interference Rejection Ratio) testing per Figure 39 in the datasheet. Unlike standard op-amps, the OPA202IDGKT maintains DC accuracy and low-noise performance even when exposed to switching power supply noise or radio-frequency fields - a key requirement for the OPA202IDGKT in factory-floor instrumentation.
What is the temperature range over which the OPA202IDGKT is fully specified?
The OPA202IDGKT is fully specified from –40°C to +105°C, with all key parameters - including offset voltage (±250 µV max), drift (±1 µV/°C max), CMRR (≥119 dB), and quiescent current (≤900 µA) - guaranteed across this extended industrial temperature range. This makes the OPA202IDGKT suitable for deployment in uncontrolled environments such as outdoor solar inverters, automotive under-hood modules, and portable medical devices.
Is the OPA202IDGKT pin-compatible with legacy precision op-amps like OP-07?
No, the OPA202IDGKT is not pin-compatible with OP-07 or OP-27. It uses an 8-pin VSSOP (DGK) footprint with dedicated NC pins (Pins 5, 6, 8), whereas OP-07 is an 8-pin SOIC with active pins in those positions. However, the OPA202IDGKT is explicitly positioned as a functional replacement - offering superior noise, drift, capacitive drive, and EMI immunity - requiring board layout revision but delivering measurable system-level improvements in precision and reliability.
OPA202IDGKT 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:
- Push-Pull
- Slew Rate:
- 0.35V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 250 pA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- 580µA
- Current - Output / Channel:
- 580 µA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA202IDGKT FAQ
1.How can I place an order for OPA202IDGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA202IDGKT 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 OPA202IDGKT reliable?
The price and inventory of OPA202IDGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA202IDGKT is usually 5 days.
3.What payment methods are accepted for OPA202IDGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA202IDGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA202IDGKT?
OPA202IDGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA202IDGKT 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 OPA202IDGKT?
For technical support, including OPA202IDGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA202IDGKT requirements.
6.How does Aetrix verify that OPA202IDGKT is sourced from the original manufacturer or authorized distributors?
All OPA202IDGKT 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 OPA202IDGKT meets industry standards.
7.What is the process for return or replacement of OPA202IDGKT?
All OPA202IDGKT units undergo pre-shipment inspection (PSI). If there is an issue with OPA202IDGKT, 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 OPA202IDGKT part is unused and in its original packaging.
Return procedure for OPA202IDGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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