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Texas Instruments OPA4202IDR
- Part No.:
- OPA4202IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA4202IDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:649
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Product details
Overview
OPA4202IDR from Texas Instruments is a precision quad operational amplifier built on super-beta complementary bipolar process, delivering 200 µV max input offset voltage, 1 µV/°C max drift, 9 nV/√Hz input voltage noise, and stable operation driving up to 25 nF capacitive loads - used in high-accuracy data acquisition front-ends and medical patient monitor signal conditioning stages.
For engineers reviewing the OPA4202IDR datasheet, OPA4202IDR pinout, OPA4202IDR application, or OPA4202IDR equivalent, this page provides verified specifications, SOIC-14 package layout, real-world settling behavior with heavy capacitive loads, and validated alternative options for precision op-amp selection in industrial and medical instrumentation.
Technical Context
The OPA4202IDR employs a precision super-beta bipolar architecture enabling ultra-low flicker noise (0.2 µVPP, 0.1–10 Hz), high open-loop gain (≥126 dB), and exceptional common-mode rejection (≥126 dB) across ±2.25 V to ±18 V supply range. Its input stage features 3000 GΩ input impedance and 0.5 pF input capacitance.
It avoids phase inversion under overdrive and achieves 32 µs settling time to 0.01% for 10-V steps while maintaining stability with capacitive loads up to 25 nF - enabled by internal compensation optimized for heavy load drive without external isolation resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±200 µV (max) - ensures ≤0.2 mV error in unity-gain buffer at room temperature |
| Offset Drift | ±1 µV/°C (max) - limits total offset shift to <100 µV over –40°C to +105°C industrial range |
| Voltage Noise Density | 9 nV/√Hz @ 1 kHz - enables sub-µV signal resolution in low-frequency sensor interfaces |
| Gain-Bandwidth Product | 1 MHz - supports stable closed-loop gain ≥10 up to 100 kHz with adequate phase margin |
| Capacitive Load Drive | 25 nF - eliminates need for series output resistor when driving ADC input filters or long cables |
| Quiescent Current | 580 µA per amplifier - allows four-channel precision amplification within 2.3 mA total supply current |
| Supply Voltage Range | ±2.25 V to ±18 V - compatible with legacy ±15 V rails and modern low-voltage industrial systems |
Pinout & Package
OPA4202IDR is housed in a 14-pin SOIC (D) package measuring 8.65 mm × 3.91 mm, with exposed pad not present and RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next-stage input with rail-to-rail swing capability |
| 2 | –IN A | Inverting input channel A - accepts feedback network for inverting configuration or reference point |
| 3 | +IN A | Noninverting input channel A - connects to sensor, reference, or signal source with 3000 GΩ input impedance |
| 4 | V+ | Positive supply terminal - must be decoupled with ≥0.1 µF ceramic capacitor near pin |
| 5 | +IN B | Noninverting input channel B - electrically isolated from other channels; shares no internal nodes |
| 6 | –IN B | Inverting input channel B - independent of channel A; supports dual simultaneous signal paths |
| 7 | OUT B | Amplifier B output - fully independent output stage; capable of sourcing/sinking 35 mA |
| 8 | OUT C | Amplifier C output - identical performance to OUT A/B; enables three-channel parallel processing |
| 9 | –IN C | Inverting input channel C - matched bias current and offset specs to other inputs |
| 10 | +IN C | Noninverting input channel C - supports high-impedance differential sensing with minimal loading |
| 11 | V– | Negative supply terminal - referenced for all internal biasing; requires local decoupling |
| 12 | +IN D | Noninverting input channel D - fourth independent input; enables full quad-channel analog front-end |
| 13 | –IN D | Inverting input channel D - matched to other channels; supports individual gain-setting networks |
| 14 | OUT D | Amplifier D output - delivers same precision and drive strength as other outputs; no shared output impedance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 0.1–10 Hz noise | 0.2 µVPP - reduces baseline wander in ECG and EEG patient monitoring applications |
| No phase reversal | Guaranteed under input overdrive - prevents latch-up and uncontrolled output saturation in fault conditions |
| EMI hardening | Integrated filtering rejects >60 dB of RF interference at 900 MHz - critical for lab equipment near wireless transmitters |
| Thermal protection | Shuts down output above 150°C junction temperature - prevents damage during sustained overload |
| High CMRR & PSRR | ≥126 dB - maintains accuracy in noisy industrial environments with fluctuating ground potentials |
Applications
| Data Acquisition Systems | Lab Instrumentation |
|---|---|
Use Scenario: Simultaneous sampling of multiple sensor types (thermocouple, strain gauge, RTD) into a 16-bit SAR ADC with anti-aliasing filter. IC Role / Device Role / Timing Role: Quad-channel precision buffer and gain stage - each amplifier conditions one sensor path with matched DC performance. Use Value: 200 µV max offset and 1 µV/°C drift ensure <0.01% system gain error across temperature without calibration. |
Use Scenario: High-resolution digital multimeter front-end with auto-ranging and true RMS conversion. IC Role / Device Role / Timing Role: Input protection, level-shifting, and programmable gain amplification before ADC digitization. Use Value: 9 nV/√Hz noise floor preserves SNR for µV-level measurements; 25 nF drive capability simplifies RC filter design. |
| Multiparameter Patient Monitor | Server PSU Monitoring |
Use Scenario: Analog signal chain for ECG, SpO₂, and respiration waveforms in Class II medical device. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier front-end with EMI-hardened inputs. Use Value: 0.2 µVPP 0.1–10 Hz noise prevents baseline drift artifacts; thermal/short-circuit protection meets IEC 60601 safety requirements. |
Use Scenario: Real-time voltage/current sensing and regulation feedback in 3 kW telecom server power supply. IC Role / Device Role / Timing Role: Isolated sense amplifier interface between shunt resistor and PWM controller. Use Value: ±18 V supply range accommodates wide PSU bus voltages; 126 dB PSRR rejects switching noise from adjacent power stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4182IDR | Lower offset (±4 µV), higher GBW (10 MHz), but higher quiescent current (560 µA per amp vs 580 µA) and reduced capacitive load drive (1 nF) | Better for high-speed precision filtering; unsuitable where >10 nF load drive is required | Select OPA4182IDR only if bandwidth >1 MHz and offset <50 µV are mandatory; retain OPA4202IDR for heavy-load stability |
| AD8629ARUZ | Zero-drift architecture (0.005 µV/°C), but lower supply voltage (±8 V max), no specified capacitive load drive, and higher 1/f noise (0.4 µVPP) | Suitable for ultra-stable DC-coupled sensors; cannot replace OPA4202IDR in ±15 V systems or capacitive-filtered ADC inputs | Choose AD8629ARUZ for sub-µV drift-critical DC applications; use OPA4202IDR where wide supply, noise, and load drive are jointly constrained |
Compared with OPA4202IDR, OPA4182IDR trades load drive robustness for speed and offset, while AD8629ARUZ sacrifices supply range and noise performance for near-zero drift - making OPA4202IDR uniquely balanced for industrial DAQ and medical front-ends requiring all three attributes.
Availability
OPA4202IDR is available at Aetrix Electronics and suitable for data acquisition systems, lab instrumentation, multiparameter patient monitors, and server power supply monitoring requiring stable component supply across extended temperature and long production lifecycles.
Supply support for OPA4202IDR 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 over 50 years of innovation in precision signal chain components.
The OPAx202 family was designed specifically for high-accuracy, low-noise, heavy capacitive load applications in industrial, medical, and test equipment - emphasizing dc precision, EMI resilience, and robust output drive without external compensation.
FAQ
What is the maximum capacitive load the OPA4202IDR can drive without instability?
The OPA4202IDR is characterized to remain stable driving up to 25 nF capacitive loads in unity-gain configuration, as confirmed in Figure 28 of the SBOS812H datasheet. This eliminates the need for series output isolation resistors in ADC input filter designs and long-cable applications - a key differentiator versus standard precision op-amps limited to <100 pF.
Does the OPA4202IDR exhibit phase reversal when input common-mode voltage exceeds rails?
No. The OPA4202IDR is explicitly designed to avoid phase reversal under input overdrive conditions, as demonstrated in Figure 29 ("No Phase Reversal") of the SBOS812H datasheet. This behavior is guaranteed across its full operating temperature range (–40°C to +105°C) and prevents catastrophic output saturation in fault scenarios.
What is the typical quiescent current per amplifier in the OPA4202IDR?
The typical quiescent current per amplifier in the OPA4202IDR is 580 µA at ±18 V supply, with a maximum of 800 µA across temperature and process variation. This enables four-channel operation at <2.4 mA total supply current - ideal for power-constrained portable instrumentation and multi-sensor modules.
Can the OPA4202IDR operate from a single 5-V supply?
Yes. The OPA4202IDR supports single-supply operation from 4.5 V to 36 V, as specified in Section 6.3 ("Recommended Operating Conditions"). At 5 V, it maintains full functionality including input common-mode range from 1.5 V below V+ to 1.5 V above V–, and output swing within 750 mV of each rail under light load.
How does the OPA4202IDR's 0.1–10 Hz noise compare to legacy precision op-amps like OP-07?
The OPA4202IDR achieves 0.2 µVPP 0.1–10 Hz noise - matching the OP-07's best-in-class low-frequency noise while adding 1 MHz bandwidth, 25 nF capacitive load drive, and EMI hardening. Unlike the OP-07, it requires no external nulling circuitry and operates over a wider supply range (±2.25 V to ±18 V).
OPA4202IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 Channels)
- Current - Output / Channel:
- 35 mA
- 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:
- 14-SOIC
OPA4202IDR FAQ
1.How can I place an order for OPA4202IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4202IDR 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 OPA4202IDR reliable?
The price and inventory of OPA4202IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4202IDR is usually 5 days.
3.What payment methods are accepted for OPA4202IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4202IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4202IDR?
OPA4202IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4202IDR 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 OPA4202IDR?
For technical support, including OPA4202IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4202IDR requirements.
6.How does Aetrix verify that OPA4202IDR is sourced from the original manufacturer or authorized distributors?
All OPA4202IDR 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 OPA4202IDR meets industry standards.
7.What is the process for return or replacement of OPA4202IDR?
All OPA4202IDR units undergo pre-shipment inspection (PSI). If there is an issue with OPA4202IDR, 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 OPA4202IDR part is unused and in its original packaging.
Return procedure for OPA4202IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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