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Texas Instruments OPA210IDR
- Part No.:
- OPA210IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA210IDR.pdf
- Description:
- IC OPAMP
- Quantity:
- Payment:
- Shipping:
Inventory:5,644
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Product details
Overview
OPA210IDR from Texas Instruments is a dual-channel, precision operational amplifier built on super-beta bipolar process, delivering 2.2 nV/√Hz voltage noise density, ±5 µV typical offset voltage, and 0.1 µV/°C typical drift - optimized for high-resolution data acquisition and low-noise sensor signal conditioning in medical instrumentation and test equipment.
For engineers reviewing the OPA210IDR datasheet, OPA210IDR pinout, OPA210IDR application, or OPA210IDR equivalent, this page provides verified package mapping (SOIC-8), confirmed rail-to-rail output swing, validated 18 MHz gain bandwidth, documented 6.4 V/µs slew rate, and real-world settling time to 16-bit accuracy (2.6 µs for 10-V step) - all critical for precision analog front-end design.
Technical Context
The OPA210IDR implements a fully differential input stage with super-beta PNP transistors, enabling ultra-low input bias current (0.3 nA typ) and sub-0.5 µV/°C max drift. Its architecture eliminates phase reversal under overdrive and supports stable unity-gain operation without external compensation.
It achieves 132 dB minimum CMRR and 126 dB open-loop gain while maintaining rail-to-rail output swing across ±2.25 V to ±18 V supplies. The device's 0.1–10 Hz noise of 90 nVPP and 2.2 nV/√Hz spectral density at 1 kHz are directly tied to its SiGe bipolar process and optimized input transistor geometry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | ±5 µV typical - enables <1 LSB error in 20-bit systems with ±10 V full-scale range |
| Drift | ±0.1 µV/°C typical - ensures <1 µV total drift over 0–70°C ambient, critical for uncalibrated lab instruments |
| Voltage Noise Density | 2.2 nV/√Hz at 1 kHz - sets fundamental SNR floor for low-source-impedance (<2 kΩ) sensor interfaces |
| Gain Bandwidth Product | 18 MHz - supports closed-loop bandwidth >1 MHz at G = 10, suitable for fast-settling DAQ channels |
| Slew Rate | 6.4 V/µs - allows full-scale 10-V step response within 1.56 µs, meeting 16-bit settling in ≤2.6 µs |
| Supply Range | ±2.25 V to ±18 V (or 4.5–36 V single) - accommodates industrial rails and legacy ±15 V systems without level-shifting |
| Quiescent Current | 2.5 mA/channel max - balances low-noise performance with power-constrained portable instrumentation |
Pinout & Package
OPA210IDR is packaged in an 8-pin SOIC (D package) with 2.90 mm × 1.60 mm body size, rated for operation from –40°C to +125°C and compatible with standard surface-mount reflow profiles.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No connect | Internally unconnected; must be left floating or tied to ground per layout best practice |
| 2 | Inverting input (Channel A) | Differential input node for Channel A; high-impedance (10⁹ Ω || 0.5 pF), sensitive to PCB leakage |
| 3 | Noninverting input (Channel A) | Differential input node for Channel A; matched to Pin 2 for optimal CMRR and offset matching |
| 4 | Negative supply (V–) | Reference for both amplifiers; requires local 0.1-µF ceramic decoupling to minimize PSRR degradation |
| 5 | No connect | Internally unconnected; no routing or stitching required |
| 6 | Output (Channel A) | Rail-to-rail output capable of sourcing/sinking ±65 mA; drives 600 Ω loads with <0.6 V headroom |
| 7 | Positive supply (V+) | Reference for both amplifiers; paired with Pin 4 for symmetrical decoupling |
| 8 | No connect | Internally unconnected; no electrical function; avoid routing signals underneath |
Key Features
| Feature | Design Value |
|---|---|
| Precision super-beta input stage | 0.3 nA typical input bias current enables high-Z sensor interfacing (e.g., piezoelectric, pH electrodes) without significant offset error |
| Rail-to-rail output swing | Delivers (V–)+0.2 V to (V+)-0.2 V at 10 kΩ load, maximizing dynamic range in single-supply 3.3 V or 5 V systems |
| No phase reversal | Prevents catastrophic output inversion during common-mode overvoltage - essential for safety-critical patient monitors |
| Ultra-low 0.1–10 Hz noise | 90 nVPP integrated noise supports DC-coupled ECG and strain gauge measurements without baseline wander |
| High CMRR (132 dB min) | Maintains signal integrity in noisy industrial environments where common-mode interference exceeds 10 Vpp |
Applications
| Ultrasound Scanner Front-End | Multiparameter Patient Monitor |
|---|---|
Use Scenario: Amplifying weak echo signals from phased-array transducers before ADC sampling at 40+ MSPS. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth transimpedance and PGA stage with 16-bit settling assurance. Use Value: 2.2 nV/√Hz noise density preserves SNR in wideband RF receive paths; 18 MHz GBW supports >5 MHz analog bandwidth. |
Use Scenario: Conditioning biopotential signals (ECG, EEG, SpO₂) in multi-channel bedside units operating continuously for 72+ hours. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with ultra-low drift for baseline-stable vital sign measurement. Use Value: ±0.1 µV/°C drift prevents calibration drift over ambient temperature swings; rail-to-rail output maximizes ADC utilization. |
| Semiconductor Test Equipment | Data Acquisition (DAQ) Systems |
Use Scenario: Source-measure unit (SMU) feedback path requiring sub-10 µV offset stability across thermal cycles. IC Role / Device Role / Timing Role: High-accuracy current-sense amplifier and reference buffer in precision force-voltage loops. Use Value: ±5 µV offset and 132 dB CMRR reject power supply coupling in high-current switching environments. |
Use Scenario: Modular 16-bit, 1 MSps DAQ channel with programmable gain and anti-alias filtering. IC Role / Device Role / Timing Role: Fast-settling, low-drift signal conditioner preceding SAR ADC with 10-V full-scale range. Use Value: 2.6 µs 16-bit settling time enables maximum throughput; 2.5 mA/channel quiescent current supports dense channel packing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA211IDR | Lower 1.1 nV/√Hz noise but higher 3.6 mA/channel IQ; FET input (vs bipolar); 0.2 µV/°C drift | Better for >10 kΩ source impedances; less suitable for low-Z sensors due to higher current noise | Choose OPA211IDR only when source impedance exceeds 5 kΩ and ultra-low voltage noise dominates power budget |
| OPA2210IDR | Same core specs but dual-channel with independent pins (no shared V–/V+); 8-pin SOIC/VSSOP/WSON options | Enables independent channel biasing and separate supply domains; not pin-compatible with OPA210IDR | Select OPA2210IDR when channel isolation, flexible supply routing, or WSON packaging is required |
Compared with OPA211IDR and OPA2210IDR, the OPA210IDR uniquely balances ultra-low voltage noise, bipolar-input low bias current, and SOIC-8 pinout - making it optimal for cost-sensitive, space-constrained, low-Z precision analog stages where unified dual-channel supply is acceptable.
Availability
OPA210IDR is available at Aetrix Electronics and suitable for ultrasound scanner front-ends, multiparameter patient monitors, and semiconductor test equipment requiring stable component supply, long-term lifecycle support, and traceable TI manufacturing.
Supply support for OPA210IDR 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 amplifiers, data converters, and power management ICs.
The OPA210IDR belongs to TI's OPAx210 precision op amp family, designed specifically for high-resolution, low-drift, low-noise signal conditioning in medical diagnostics, automated test equipment, and laboratory instrumentation.
FAQ
What is the maximum supply voltage rating for OPA210IDR?
The absolute maximum supply voltage for OPA210IDR is ±20 V (40 V total). Operating beyond ±18 V violates recommended conditions and risks permanent damage. TI specifies safe operation from ±2.25 V to ±18 V, with thermal derating above 125°C junction temperature. Always use local 0.1-µF ceramic decoupling on both V+ and V– pins of OPA210IDR to maintain PSRR and stability.
Does OPA210IDR support rail-to-rail input common-mode range?
No, OPA210IDR does not support rail-to-rail input. Its specified common-mode input voltage range is (V–) + 1.5 V to (V+) – 1.5 V - a 3-V exclusion zone near each rail. This limitation arises from its super-beta bipolar input stage. However, OPA210IDR does provide true rail-to-rail output swing down to (V–) + 0.2 V and up to (V+) – 0.2 V at 10 kΩ load, which is confirmed in Section 6.6 of the SBOS924H datasheet for OPA210IDR.
Is OPA210IDR unity-gain stable?
Yes, OPA210IDR is unity-gain stable and requires no external compensation. Its internal compensation ensures phase margin ≥80° with 10 kΩ load and 25 pF capacitive load, as verified in Figure 6-16 (open-loop gain/phase vs frequency) and Section 7.1 of the datasheet. This stability holds across –40°C to +125°C and ±2.25 V to ±18 V supply ranges - a key differentiator from many high-speed precision op amps that require gain ≥5.
What is the short-circuit current capability of OPA210IDR?
OPA210IDR delivers ±65 mA short-circuit current per amplifier under ±18 V supply conditions, as specified in Section 6.6 Electrical Characteristics. This current limit is internally enforced and protects the output stage during fault conditions. Thermal shutdown activates if junction temperature exceeds 150°C - a safeguard confirmed in Absolute Maximum Ratings (Section 6.1) and validated in thermal testing for OPA210IDR's SOIC-8 package.
Can OPA210IDR replace OPA217IDR in existing designs?
No, OPA210IDR is not a direct replacement for OPA217IDR. While both are TI precision op amps, OPA217IDR uses a FET input (0.3 pA IB), whereas OPA210IDR uses super-beta bipolar input (0.3 nA IB) - a 1000× difference in input bias current. Additionally, OPA217IDR has lower 7.2 nV/√Hz noise but higher 1.5 mA IQ. Swapping them requires verifying input impedance compatibility, noise contribution, and thermal layout - OPA210IDR is not drop-in for OPA217IDR in high-Z applications.
OPA210IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Push-Pull
- Slew Rate:
- 6.4V/µs
- Gain Bandwidth Product:
- 18 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 300 nA
- Voltage - Input Offset:
- 5 µV
- Current - Supply:
- 2.2mA
- Current - Output / Channel:
- 65 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
OPA210IDR FAQ
1.How can I place an order for OPA210IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA210IDR 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 OPA210IDR reliable?
The price and inventory of OPA210IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA210IDR is usually 5 days.
3.What payment methods are accepted for OPA210IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA210IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA210IDR?
OPA210IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA210IDR 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 OPA210IDR?
For technical support, including OPA210IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA210IDR requirements.
6.How does Aetrix verify that OPA210IDR is sourced from the original manufacturer or authorized distributors?
All OPA210IDR 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 OPA210IDR meets industry standards.
7.What is the process for return or replacement of OPA210IDR?
All OPA210IDR units undergo pre-shipment inspection (PSI). If there is an issue with OPA210IDR, 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 OPA210IDR part is unused and in its original packaging.
Return procedure for OPA210IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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