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Texas Instruments OPA210IDGKR
- Part No.:
- OPA210IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA210IDGKR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,948
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Product details
Overview
OPA210IDGKR from Texas Instruments is a dual-channel, precision, low-noise, rail-to-rail output operational amplifier built on a super-beta bipolar process. It delivers 2.2 nV/√Hz voltage noise density at 1 kHz, 5 µV typical offset voltage, 0.1 µV/°C typical drift, and 18 MHz gain bandwidth - enabling high-fidelity signal conditioning in medical instrumentation and precision data acquisition systems.
For engineers reviewing the OPA210IDGKR datasheet, OPA210IDGKR pinout, OPA210IDGKR application, or OPA210IDGKR equivalent, this page provides verified technical context, package-specific pin functions, real-world application mappings, and validated alternative options for design-in and supply continuity planning.
Technical Context
The OPA210IDGKR implements a complementary bipolar super-beta input stage that achieves ultra-low 1/f noise corner (<10 Hz) and sub-0.5 µV/°C maximum offset drift. Its unity-gain stable architecture supports fast settling to 16-bit accuracy (2.6 µs for 10-V step), with no phase reversal even when inputs exceed common-mode range.
It operates from ±2.25 V to ±18 V (or 4.5 V to 36 V single supply), features 132 dB minimum CMRR and PSRR, and maintains rail-to-rail output swing across –40°C to +125°C - making it suitable for high-dynamic-range analog front-ends where DC precision and AC fidelity must coexist.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 2.2 nV/√Hz at 1 kHz - enables low-noise amplification of microvolt-level sensor signals without requiring excessive gain staging |
| Offset Voltage | ±5 µV typical - reduces DC error in precision transducer interfaces and reference buffers |
| Offset Drift | ±0.1 µV/°C typical - ensures stable calibration over industrial temperature ranges without frequent recalibration |
| Gain Bandwidth | 18 MHz - supports accurate amplification of multi-MHz sensor outputs and fast-settling DAC buffers |
| Slew Rate | 6.4 V/µs - allows clean reproduction of 10-Vpp signals up to ~1 MHz without slew-induced distortion |
| Quiescent Current | 2.5 mA/channel max - balances low-power operation with high-speed performance in battery-aware or thermally constrained designs |
| Supply Range | ±2.25 V to ±18 V - accommodates both low-voltage portable systems and high-voltage industrial signal chains |
| CMRR | 132 dB min - rejects common-mode interference in noisy environments such as motor drives or switching power supplies |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65 mm pitch, exposed thermal pad (not electrically connected). Designed for high-density PCB layouts with improved thermal dissipation vs SOIC-8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - rail-to-rail capable, drives loads ≥600 Ω with <0.6 V headroom from rails |
| 2 | V– | Negative supply - connects to lowest system voltage; must be decoupled with 0.1 µF capacitor near pin |
| 3 | +IN A | Noninverting input, channel A - high-impedance (10⁹ Ω || 0.5 pF), low bias current (0.3 nA typ) |
| 4 | –IN A | Inverting input, channel A - matched to +IN A for precision differential gain configurations |
| 5 | –IN B | Inverting input, channel B - independent of channel A; supports dual-path signal processing |
| 6 | +IN B | Noninverting input, channel B - electrically isolated from channel A; no crosstalk beyond specified 0.1 µV/V matching |
| 7 | OUT B | Amplifier B output - identical AC/DC specs to OUT A; usable for dual-channel buffering or active filtering |
| 8 | V+ | Positive supply - connects to highest system voltage; requires local 0.1 µF decoupling for stability |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Input overdrive beyond common-mode range causes output limiting-not polarity inversion-enabling robust operation in fault-prone sensor interfaces |
| Rail-to-rail output | Swings within 0.2 V of rails at 10 kΩ load, maximizing dynamic range in single-supply 3.3 V or 5 V systems |
| Ultra-low 0.1–10 Hz noise | 90 nVPP integrated noise - critical for DC-coupled ECG, strain gauge, and thermopile amplifiers where baseline stability matters |
| High CMRR & PSRR | ≥132 dB CMRR and >120 dB PSRR - suppresses interference from shared power rails and adjacent digital circuitry |
| Super-beta input stage | 0.3 nA typical input bias current - minimizes voltage error across high-value feedback networks (e.g., >1 MΩ gain-setting resistors) |
| Wide temperature spec | Guaranteed performance from –40°C to +125°C - qualified for automotive under-hood and industrial control applications |
Applications
| Ultrasound Signal Conditioning | Multiparameter Patient Monitor |
|---|---|
Use Scenario: Amplifying weak, high-frequency echo signals from piezoelectric transducers before ADC sampling. IC Role / Device Role / Timing Role: Low-noise, wide-bandwidth preamplifier with precise gain control and minimal phase distortion. Use Value: 2.2 nV/√Hz noise floor preserves SNR of µV-level echoes; 18 MHz GBW supports >5 MHz imaging bandwidth without roll-off. | Use Scenario: Simultaneous amplification and filtering of ECG, SpO₂, NIBP, and temperature sensor outputs. IC Role / Device Role / Timing Role: Dual-channel precision buffer and signal conditioner for multi-sensor analog front-end. Use Value: Matched channels ensure consistent gain/offset across vital signs; rail-to-rail output maximizes ADC utilization in 3.3 V systems. |
| Spectrum Analyzer Front-End | Data Acquisition System |
Use Scenario: Low-distortion amplification of RF downconverted IF signals prior to digitization. IC Role / Device Role / Timing Role: High-linearity, low-noise intermediate frequency amplifier with fast settling. Use Value: 0.000025% THD+N at 1 kHz ensures spectral purity; 2.6 µs 16-bit settling enables high-throughput FFT analysis. | Use Scenario: Precision conditioning of thermocouple, RTD, and bridge sensor outputs in modular DAQ modules. IC Role / Device Role / Timing Role: Programmable-gain amplifier (PGA) driver and reference buffer with low drift. Use Value: ±0.1 µV/°C drift eliminates thermal drift compensation overhead; 5 µV offset reduces calibration burden. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA211IDGKR | Lower 1.1 nV/√Hz noise but higher 3.6 mA/channel quiescent current; same VSSOP-8 package | Better for ultra-low-noise, AC-coupled applications where power is secondary; less suitable for battery-powered DAQ | Select OPA211IDGKR only if voltage noise <1.2 nV/√Hz is mandatory and thermal/power budget allows +44% IQ increase |
| OPA2210IDGKR | Identical electrical specs and pinout; differs only in production status - OPA2210 is dual-amplifier variant with same die but different test screening | No functional difference; used interchangeably in new designs where dual-channel count matches requirement | OPA2210IDGKR is functionally identical and pin-compatible - choose based on TI's current allocation and lead time availability |
Compared with OPA210IDGKR, OPA211IDGKR trades higher power for lower noise, while OPA2210IDGKR offers identical performance in the same footprint - making the latter a seamless drop-in option when dual-channel count aligns and supply chain favors it.
Availability
OPA210IDGKR is available at Aetrix Electronics and suitable for ultrasound scanners, multiparameter patient monitors, and spectrum analyzers requiring stable component supply across extended product lifecycles.
Supply support for OPA210IDGKR 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 company specializing in analog and embedded processing technologies, with leadership in precision analog signal chain solutions.
The OPAx210 product line was designed for high-accuracy, low-noise signal conditioning in medical, test & measurement, and industrial sensing applications - emphasizing DC precision, AC fidelity, and robustness across temperature and supply variations.
FAQ
What is the maximum operating supply voltage for OPA210IDGKR?
The OPA210IDGKR supports a total supply voltage range of ±2.25 V to ±18 V (i.e., 4.5 V to 36 V single supply). Absolute maximum rating is 40 V across V+ and V–; exceeding this risks permanent damage. Operation at ±18 V is fully specified over –40°C to +125°C, with all key parameters including offset drift and CMRR guaranteed per datasheet Section 6.3.
Does OPA210IDGKR require external compensation for unity-gain stability?
No, the OPA210IDGKR is internally compensated and unity-gain stable. It drives capacitive loads up to 100 pF without oscillation (see Figure 6-37), and maintains ≥80° phase margin with 10 kΩ load and 25 pF capacitance. No external compensation components are needed for standard gain configurations, simplifying layout and reducing BOM count.
How does the OPA210IDGKR handle input overvoltage conditions?
The OPA210IDGKR includes internal back-to-back diodes between inputs to limit differential voltage, and features phase-reversal protection that forces output limiting instead of polarity inversion when common-mode range is exceeded. Input current must be limited to ≤10 mA - achieved via series resistors if fast-ramping signals are present - to avoid forward-biasing protection diodes and degrading noise performance.
Is OPA210IDGKR pin-compatible with other TI precision op amps in VSSOP-8?
OPA210IDGKR shares the same VSSOP-8 (DGK) pinout as OPA2210IDGKR and OPA211IDGKR, with identical pin numbering and functions. However, it is not pin-compatible with OPA2188 or OPA2333 due to differing internal architectures and pin assignments - always verify pin functions in Section 5 of the respective datasheets before board reuse.
What thermal performance can be expected from OPA210IDGKR in VSSOP-8 package?
In the DGK (VSSOP-8) package, OPA210IDGKR has a junction-to-ambient thermal resistance (RθJA) of 171.3°C/W and junction-to-board (RθJB) of 92.4°C/W. With proper PCB copper pour under the exposed pad (if soldered), thermal performance improves significantly - enabling continuous operation at full 2.5 mA/channel quiescent current across –40°C to +125°C ambient without derating.
OPA210IDGKR 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, Rail-to-Rail
- Slew Rate:
- 6.4V/µs
- Gain Bandwidth Product:
- 18 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 300 pA
- Voltage - Input Offset:
- 5 µV
- Current - Supply:
- 2.2mA
- Current - Output / Channel:
- -
- 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-VSSOP
OPA210IDGKR FAQ
1.How can I place an order for OPA210IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA210IDGKR 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 OPA210IDGKR reliable?
The price and inventory of OPA210IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA210IDGKR is usually 5 days.
3.What payment methods are accepted for OPA210IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA210IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA210IDGKR?
OPA210IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA210IDGKR 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 OPA210IDGKR?
For technical support, including OPA210IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA210IDGKR requirements.
6.How does Aetrix verify that OPA210IDGKR is sourced from the original manufacturer or authorized distributors?
All OPA210IDGKR 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 OPA210IDGKR meets industry standards.
7.What is the process for return or replacement of OPA210IDGKR?
All OPA210IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with OPA210IDGKR, 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 OPA210IDGKR part is unused and in its original packaging.
Return procedure for OPA210IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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