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Texas Instruments OPA2202IDGKT
- Part No.:
- OPA2202IDGKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2202IDGKT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,620
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Product details
Overview
OPA2202IDGKT from Texas Instruments is a dual-channel precision operational amplifier built on super-beta bipolar process, delivering 200 µV max offset voltage, 1 µV/°C max drift, and 9 nV/√Hz input voltage noise at 1 kHz. It drives heavy capacitive loads up to 25 nF with 5-µs settling time and operates from ±2.25 V to ±18 V supplies. It serves in high-accuracy signal conditioning stages of medical patient monitors and industrial data acquisition systems.
For engineers reviewing the OPA2202IDGKT datasheet, OPA2202IDGKT pinout, OPA2202IDGKT application, or OPA2202IDGKT equivalent, this page provides verified specifications, VSSOP-8 package details, dual-channel precision op-amp functional context, and validated alternative options for low-drift, low-noise, high-CMRR analog front-ends.
Technical Context
The OPA2202IDGKT implements a complementary bipolar input stage with ultra-high input impedance (3000 GΩ) and low input capacitance (0.5 pF), enabling stable operation with capacitive loads up to 25 nF without external isolation resistors. Its precision architecture achieves 126 dB minimum CMRR and PSRR across –40°C to +105°C.
It features EMI hardening, thermal shutdown, and short-circuit protection, and avoids phase inversion under common-mode overvoltage. The device maintains 1 MHz gain-bandwidth product and 0.35 V/µs slew rate while consuming only 580 µA per amplifier at ±18 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | ±200 µV max - ensures ≤0.2 mV DC error in 10-V full-scale measurement systems |
| Drift | ±1.5 µV/°C max - limits temperature-induced error to <15 µV over 10°C ambient shift |
| Voltage Noise | 9 nV/√Hz @ 1 kHz - supports sub-µV resolution in 100-Hz bandwidth sensor interfaces |
| Gain-Bandwidth | 1 MHz - enables stable unity-gain buffer or 10× gain up to 100 kHz |
| Capacitive Load Drive | 25 nF - eliminates need for output series resistor in ADC driver or piezo transducer applications |
| Supply Range | ±2.25 V to ±18 V - supports single-supply 4.5–36 V or dual-rail operation in industrial power domains |
| CMRR / PSRR | 126 dB min - rejects >2 mV of supply or common-mode ripple in 1-V signal paths |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65 mm pitch, exposed pad optional, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to 25 nF with no stability compromise |
| 2 | –IN A | Inverting input channel A - differential pair input with 2 nA max bias current |
| 3 | +IN A | Noninverting input channel A - 3000 GΩ input impedance, 0.5 pF capacitance |
| 4 | V– | Negative supply rail - referenced to lowest system potential; supports rail-to-rail input down to (V–) + 1.5 V |
| 5 | +IN B | Noninverting input channel B - independent high-Z node for second signal path |
| 6 | –IN B | Inverting input channel B - matched to channel A for dual instrumentation configurations |
| 7 | OUT B | Amplifier B output - fully independent output with same drive capability as OUT A |
| 8 | V+ | Positive supply rail - supports up to ±18 V; PSRR ≥126 dB minimizes supply coupling |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low offset drift | ±1.5 µV/°C max over –40°C to +105°C - enables uncalibrated 16-bit accuracy in wide-temperature environments |
| Heavy capacitive load drive | Stable with 25 nF load and 5-µs 0.1% settling - eliminates external Riso in DAC output buffers |
| EMI-hardened input stage | Immunity to RF interference up to 1 GHz per EMIRR plot - reduces filtering overhead in noisy industrial enclosures |
| High open-loop gain | 126 dB min AOL - ensures <0.002% gain error in closed-loop gain-of-1000 configurations |
| No phase reversal | Guaranteed under common-mode overvoltage - prevents latch-up in sensor fault conditions |
Applications
| Medical Patient Monitoring | Industrial Data Acquisition |
|---|---|
Use Scenario: Amplifying low-level biopotential signals (ECG, EEG) with high common-mode rejection in multi-parameter bedside monitors. IC Role / Device Role / Timing Role: Dual-channel precision instrumentation amplifier front-end, providing DC-coupled gain and noise filtering before ADC sampling. Use Value: 0.2 µVPP 0.1–10 Hz noise and 126 dB CMRR suppress 50/60 Hz mains interference without notch filters. | Use Scenario: Signal conditioning for strain gauges and RTDs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-drift, low-noise gain stage driving SAR ADCs with 16+ ENOB at 100 kSPS. Use Value: ±200 µV offset and ±1.5 µV/°C drift enable <±1 LSB error over full industrial temperature range without calibration. |
| Server Power Supply Sensing | String Inverter Current Sensing |
Use Scenario: Isolated current/voltage sensing in merchant server PSU feedback loops requiring long-term stability. IC Role / Device Role / Timing Role: Precision difference amplifier in isolated shunt-based current monitor circuits. Use Value: 126 dB PSRR rejects switching noise from 500 kHz–1 MHz PWM controllers, preserving measurement integrity. | Use Scenario: DC-link current monitoring in photovoltaic string inverters operating at –25°C to +65°C ambient. IC Role / Device Role / Timing Role: High-voltage differential amplifier interface between shunt resistor and isolated ADC. Use Value: ±18 V supply rating and –40°C to +105°C operation support direct integration into high-side sensing topologies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2189IDGKT | Lower 5.2 nV/√Hz noise, zero-drift architecture, but higher 1.3 mA quiescent current | Better for ultra-low-frequency (<1 Hz) sensor nodes where power is not constrained | Select OPA2189IDGKT when sub-100 nV PP 0.1–10 Hz noise is required and supply current >1 mA is acceptable |
| ADA4522-2ARMZ | Zero-drift, 3.5 nV/√Hz noise, 5.5 V max supply - limited to single-supply ≤11 V operation | Suitable for battery-powered portable instruments with <±5.5 V rails | Choose ADA4522-2ARMZ only for low-voltage, ultra-low-noise portable designs; not drop-in for ±15 V systems |
Compared with OPA2202IDGKT, OPA2189IDGKT trades higher power for lower drift and noise, while ADA4522-2ARMZ offers superior low-frequency performance but lacks dual-supply flexibility and high-voltage capability - making OPA2202IDGKT optimal for industrial ±15 V, wide-temp, moderate-power precision analog front-ends.
Availability
OPA2202IDGKT is available at Aetrix Electronics and suitable for medical patient monitors, industrial data acquisition modules, and server power supply sensing requiring stable component supply with guaranteed long-term manufacturability.
Supply support for OPA2202IDGKT 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 signal chain solutions.
The OPAx202 family was designed specifically for high-accuracy, high-stability analog signal conditioning in harsh environments - targeting applications demanding low drift, low noise, and robust capacitive-load drive without external compensation.
FAQ
What is the maximum capacitive load the OPA2202IDGKT can drive without instability?
The OPA2202IDGKT is specified to drive up to 25 nF capacitive loads while maintaining stability and achieving 5-µs settling time to 0.1%. This capability is verified across temperature and supply voltage ranges and eliminates the need for external isolation resistors in typical ADC driver or piezoelectric sensor interface configurations. The OPA2202IDGKT achieves this via internal compensation optimized for heavy capacitive loading.
Does the OPA2202IDGKT support rail-to-rail input or output operation?
The OPA2202IDGKT does not provide rail-to-rail input or output swing. Its input common-mode range extends from (V–) + 1.5 V to (V+) – 1.5 V, and its output swing is typically 650–750 mV from each rail under no-load conditions at ±18 V. At 10 kΩ load, output swing degrades to ~800–900 mV from rail. These limitations are inherent to its bipolar input stage and output stage architecture.
What is the guaranteed input offset voltage specification for OPA2202IDGKT over temperature?
The OPA2202IDGKT guarantees a maximum input offset voltage of ±250 µV over the full operating temperature range of –40°C to +105°C. At room temperature (25°C), the limit is tighter at ±200 µV. This specification is tested and binned during production and applies to all units shipped in the OPA2202IDGKT variant.
Can the OPA2202IDGKT replace OP-07 or OP-27 in existing designs?
Yes, the OPA2202IDGKT is explicitly positioned by Texas Instruments as a replacement for OP-07 and OP-27 op-amps. It matches or exceeds their key specs - including offset voltage, drift, CMRR, and PSRR - while adding modern enhancements like EMI hardening, thermal protection, and superior capacitive load drive. Pin compatibility depends on package: OPA2202IDGKT in VSSOP-8 replaces OP-07/OP-27 in SOIC-8 only with board layout adaptation.
What is the quiescent current consumption of OPA2202IDGKT per amplifier?
The OPA2202IDGKT consumes 580 µA typical quiescent current per amplifier at ±18 V, with a maximum of 800 µA at 25°C and up to 1100 µA over the full –40°C to +105°C temperature range. This low power draw enables use in space-constrained, thermally sensitive, or multi-channel precision systems without excessive self-heating or supply burden.
OPA2202IDGKT 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:
- 2
- 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 (x2 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:
- 8-VSSOP
OPA2202IDGKT FAQ
1.How can I place an order for OPA2202IDGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2202IDGKT 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 OPA2202IDGKT reliable?
The price and inventory of OPA2202IDGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2202IDGKT is usually 5 days.
3.What payment methods are accepted for OPA2202IDGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2202IDGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2202IDGKT?
OPA2202IDGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2202IDGKT 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 OPA2202IDGKT?
For technical support, including OPA2202IDGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2202IDGKT requirements.
6.How does Aetrix verify that OPA2202IDGKT is sourced from the original manufacturer or authorized distributors?
All OPA2202IDGKT 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 OPA2202IDGKT meets industry standards.
7.What is the process for return or replacement of OPA2202IDGKT?
All OPA2202IDGKT units undergo pre-shipment inspection (PSI). If there is an issue with OPA2202IDGKT, 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 OPA2202IDGKT part is unused and in its original packaging.
Return procedure for OPA2202IDGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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