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Texas Instruments OPA202ID
- Part No.:
- OPA202ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA202ID.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,112
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Product details
Overview
OPA202ID from Texas Instruments is a precision, low-noise, heavy capacitive-load drive operational amplifier in an 8-pin SOIC package. It delivers ±200 µV max offset voltage, 1 µV/°C max drift, 9 nV/√Hz input voltage noise, 1 MHz gain-bandwidth, and stable operation with up to 25 nF capacitive loads - enabling high-accuracy signal conditioning in data acquisition front-ends.
For engineers reviewing the OPA202ID datasheet, OPA202ID pinout, OPA202ID application, or OPA202ID equivalent, this page provides verified specifications, SOIC-8 pin functions, real-world use cases in lab instrumentation and patient monitors, and validated alternative options for precision op-amp selection.
Technical Context
The OPA202ID uses TI's precision super-beta complementary bipolar process to achieve ultra-low flicker noise and excellent linearity over common-mode and supply variations. Its architecture eliminates phase inversion and supports rail-to-rail output swing within 750 mV of rails at ±18 V with 10 kΩ load.
It integrates EMI hardening, thermal shutdown, and short-circuit protection while maintaining 580 µA quiescent current per amplifier. The device operates across –40°C to +105°C and is fully specified for dual-supply (±2.25 V to ±18 V) and single-supply (4.5 V to 36 V) configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | ±200 µV max - ensures minimal DC error in precision sensor amplification and reference buffering |
| Drift | ±1 µV/°C max - maintains accuracy across industrial temperature ranges without recalibration |
| Voltage Noise | 9 nV/√Hz @ 1 kHz - enables clean amplification of low-level signals in DAQ systems |
| GBW | 1 MHz - supports stable closed-loop gain up to 100× at 10 kHz for anti-aliasing filters |
| Capacitive Load Drive | Stable with 25 nF - allows direct connection to ADC input capacitors or long cables without isolation resistors |
| Supply Range | ±2.25 V to ±18 V - compatible with legacy ±15 V systems and modern low-voltage industrial rails |
| Quiescent Current | 580 µA typical - enables low-power precision performance in battery-backed instrumentation |
Pinout & Package
OPA202ID is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm, optimized for thermal performance (RθJA = 136 °C/W) and PCB layout compatibility with legacy op-amp footprints.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No connect | Internally unconnected; must be left floating or tied to ground for mechanical stability |
| 2 | Inverting input | Differential input node for feedback networks; high impedance (3000 GΩ) minimizes loading |
| 3 | Noninverting input | Reference input node; matched bias current enables low-offset differential sensing |
| 4 | Negative supply | Lowest potential rail; supports dual-supply operation down to ±2.25 V |
| 5 | No connect | Internally unconnected; no electrical function - avoid routing signals here |
| 6 | Output | Class-AB output stage drives 10 kΩ load to within 750 mV of rails at ±18 V |
| 7 | Positive supply | Highest potential rail; accepts up to ±18 V or 36 V single supply |
| 8 | No connect | Internally unconnected; electrically inert - may be used for thermal pad anchoring |
Key Features
| Feature | Design Value |
|---|---|
| Heavy capacitive load drive | 5-µs settling to 0.1% with 25 nF - eliminates need for external isolation resistors in ADC driver stages |
| Ultra-low 0.1–10 Hz noise | 0.2 µVPP - critical for DC-coupled thermocouple and strain gauge amplifiers |
| EMI hardening | Integrated filtering rejects RF interference above 100 MHz - improves immunity in noisy industrial environments |
| No phase inversion | Guaranteed rail-to-rail input common-mode range without output polarity reversal - prevents latch-up in sensor interfaces |
| High CMRR & PSRR | 126 dB min - suppresses power supply ripple and common-mode noise in precision measurement paths |
Applications
| Data Acquisition Front-End | Lab Instrumentation Amplifier |
|---|---|
Use Scenario: High-resolution analog input module acquiring thermistor, RTD, or bridge sensor outputs with 24-bit sigma-delta ADCs. IC Role / Device Role / Timing Role: Precision instrumentation amplifier stage providing gain, offset correction, and anti-aliasing filtering before digitization. Use Value: ±200 µV offset and 1 µV/°C drift ensure <0.01% full-scale error over –40°C to +85°C without calibration. | Use Scenario: Benchtop multimeter or oscilloscope input channel conditioning low-level signals from passive probes or current shunts. IC Role / Device Role / Timing Role: Low-noise, high-input-impedance buffer and programmable-gain amplifier in the signal path. Use Value: 9 nV/√Hz noise and 3000 GΩ input impedance preserve signal integrity for sub-mV measurements. |
| Multiparameter Patient Monitor | Merchant Server PSU Feedback |
Use Scenario: Simultaneous acquisition of ECG, SpO₂, and NIBP waveforms in Class II medical devices requiring IEC 60601-1 compliance. IC Role / Device Role / Timing Role: Isolated front-end amplifier for biopotential signal conditioning with EMI-hardened inputs. Use Value: EMI hardening and 126 dB PSRR reject switching noise from nearby DC-DC converters in compact enclosures. | Use Scenario: Voltage and current sense amplifier in 48 V server power supply control loop for accurate regulation and OCP. IC Role / Device Role / Timing Role: High-accuracy feedback amplifier in isolated error amplifier circuit driving optocoupler input. Use Value: Stable operation with 25 nF capacitive loads enables direct interface to optocoupler CTR compensation networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2182ID | Lower offset (±4 µV), higher GBW (5.7 MHz), but higher IQ (560 µA per amp vs 580 µA); same SOIC-8 package | Better for high-speed precision filtering; less optimal for ultra-low-power battery operation | Select OPA2182ID when sub-µV offset and >1 MHz bandwidth are required; OPA202ID remains preferred for cost-sensitive, low-IQ designs |
| AD8638ARZ | Similar offset (±250 µV) and drift (±0.3 µV/°C), but lower noise (5.5 nV/√Hz) and no integrated EMI hardening | Superior noise performance in RF-clean labs; lacks built-in EMI rejection for noisy industrial settings | Choose AD8638ARZ where lowest possible voltage noise dominates; OPA202ID is superior where EMI robustness is mandatory |
Compared with OPA2182ID and AD8638ARZ, the OPA202ID uniquely balances ultra-low drift, proven capacitive-load stability, and integrated EMI protection - making it the most robust choice for unshielded industrial and medical signal chains where reliability trumps marginal noise or speed gains.
Availability
OPA202ID is available at Aetrix Electronics and suitable for data acquisition systems, lab instrumentation, and multiparameter patient monitors requiring stable component supply and long-term manufacturability.
Supply support for OPA202ID 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The OPA202ID belongs to TI's OPAx202 precision op-amp family, engineered specifically for high-accuracy, low-drift signal conditioning in harsh electromagnetic environments - targeting applications where traditional op-amps fail due to EMI susceptibility or capacitive-load instability.
FAQ
What is the maximum capacitive load the OPA202ID can drive without oscillation?
The OPA202ID is characterized for stable operation with up to 25 nF capacitive loads, achieving 5-µs settling time to 0.1% in unity-gain configuration. This capability eliminates external isolation resistors in ADC driver and filter applications. Stability is guaranteed across –40°C to +105°C and ±2.25 V to ±18 V supply ranges. For loads exceeding 25 nF, consult TI's OPA202ID application note SBAA322 for recommended RISO compensation networks.
Does the OPA202ID support single-supply operation?
Yes, the OPA202ID supports true single-supply operation from 4.5 V to 36 V. Its input common-mode range extends to (V–) + 1.5 V and (V+) – 1.5 V, and output swings to within 750 mV of either rail under 10 kΩ load at ±18 V. This enables rail-to-rail input/output functionality in 5 V, 12 V, and 24 V systems without level-shifting circuitry - confirmed in Section 6.3 and Figure 12 of the SBOS812H datasheet.
How does the OPA202ID's EMI hardening improve system performance?
The OPA202ID incorporates on-die EMI filtering that attenuates RF interference above 100 MHz by >40 dB, as verified in Figure 39 (EMIRR vs Frequency). This prevents rectification of GSM, Wi-Fi, or switch-mode noise into DC offsets or spurious tones - critical in medical monitors and industrial DAQ where conducted/radiated emissions degrade measurement fidelity. Unlike external RC filters, this hardening adds no phase lag or bandwidth penalty.
What is the guaranteed input offset voltage drift specification for OPA202ID over temperature?
The OPA202ID guarantees ±1 µV/°C maximum input offset voltage drift over the full –40°C to +105°C operating range, as specified in Table 6.7 (Electrical Characteristics) of the SBOS812H datasheet. This drift performance is achieved via TI's precision super-beta bipolar process and is validated across production lots - enabling high-accuracy measurements in uncontrolled thermal environments without periodic zeroing.
Can the OPA202ID replace OP-07 or OP-27 in existing designs?
Yes, the OPA202ID is explicitly positioned as a drop-in replacement for OP-07 and OP-27, offering superior performance: lower offset (±200 µV vs ±250 µV), lower drift (±1 µV/°C vs ±1.5 µV/°C), lower noise (9 nV/√Hz vs 12 nV/√Hz), and enhanced capacitive-load drive. Pin-compatible in SOIC-8, it requires no layout changes and operates across the same ±2.25 V to ±18 V supply range - confirmed in the "Features" section of the SBOS812H datasheet.
OPA202ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 35 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA202ID FAQ
1.How can I place an order for OPA202ID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA202ID 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 OPA202ID reliable?
The price and inventory of OPA202ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA202ID is usually 5 days.
3.What payment methods are accepted for OPA202ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA202ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA202ID?
OPA202ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA202ID 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 OPA202ID?
For technical support, including OPA202ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA202ID requirements.
6.How does Aetrix verify that OPA202ID is sourced from the original manufacturer or authorized distributors?
All OPA202ID 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 OPA202ID meets industry standards.
7.What is the process for return or replacement of OPA202ID?
All OPA202ID units undergo pre-shipment inspection (PSI). If there is an issue with OPA202ID, 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 OPA202ID part is unused and in its original packaging.
Return procedure for OPA202ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA202ID Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM358ADR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
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LM358P
Texas Instruments
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