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Texas Instruments OPA210IDT
- Part No.:
- OPA210IDT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA210IDT.pdf
- Description:
- IC OPAMP
- Quantity:
- Payment:
- Shipping:
Inventory:570
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Product details
Overview
OPA210IDT 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 test equipment.
For engineers reviewing the OPA210IDT datasheet, OPA210IDT pinout, OPA210IDT application, or OPA210IDT equivalent, this device is selected for ultra-low-noise, high-accuracy analog front-ends where 16-bit settling time (2.6 µs), ±2.25 V to ±18 V supply flexibility, and no phase reversal under overdrive are critical design requirements.
Technical Context
The OPA210IDT implements a fully differential input stage with super-beta PNP transistors, achieving ultra-low flicker noise and sub-0.5 µV/°C max drift. Its architecture supports unity-gain stability and eliminates phase reversal via internal input clamping circuitry - critical for noninverting configurations driven beyond common-mode range.
It operates across –40°C to +125°C with rail-to-rail output swing (within 0.2 V of rails at 10 kΩ load) and maintains 132 dB minimum CMRR and 126 dB open-loop gain. The device draws only 2.5 mA per channel maximum, balancing precision performance with low-power constraints in portable and thermally sensitive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 2.2 nV/√Hz at 1 kHz - enables <1 µV RMS noise in 100-kHz bandwidth sensor interfaces |
| Offset Voltage | ±5 µV typical - reduces DC error to <0.001% of full-scale in 5-V reference systems |
| Offset Drift | ±0.1 µV/°C typical - ensures <0.5 µV total drift over 50°C ambient change |
| Gain Bandwidth Product | 18 MHz - supports stable closed-loop gain ≥10 at 1.8 MHz signal frequencies |
| Slew Rate | 6.4 V/µs - allows clean 10-V step response in <1.6 µs without slewing distortion |
| Supply Range | ±2.25 V to ±18 V - accommodates single-supply (4.5–36 V) or split-rail industrial/metrology rails |
| CMRR | 132 dB minimum - rejects >200,000:1 common-mode interference in bridge sensor amplifiers |
Pinout & Package
OPA210IDT is packaged in an 8-pin SOIC (D package) with 2.90 mm × 1.60 mm body size and standard JEDEC MS-012 footprint. Thermal resistance is RθJA = 131.2°C/W, supporting operation up to +125°C ambient with moderate PCB copper area.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No connection | Internally unconnected; must be left floating or tied to ground per layout best practice |
| 2 | Inverting input (Channel A) | Differential input node for feedback path; high-impedance (10⁹ Ω || 0.5 pF) minimizes loading |
| 3 | Noninverting input (Channel A) | Reference input node; common-mode range extends to within 1.5 V of either rail |
| 4 | Negative supply (V−) | Lowest potential rail; supplies bias current for input stage and output driver |
| 5 | No connection | Internally unconnected; no electrical function or thermal benefit when grounded |
| 6 | Output (Channel A) | Rail-to-rail capable output; drives 10 kΩ load to within 0.2 V of V− or V+ at 25°C |
| 7 | Positive supply (V+) | Highest potential rail; decoupling capacitor required within 2 mm for EMI suppression |
| 8 | No connection | Internally unconnected; not used for thermal pad or grounding in SOIC package |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Internal input clamping prevents output inversion when inputs exceed common-mode range - eliminates latch-up risk in noninverting transducer amps |
| Ultra-low 0.1–10 Hz noise | 90 nVPP - preserves DC accuracy in slow-sampling DAQ and precision weigh-scale front-ends |
| Super-beta input stage | 0.3 nA typical input bias current - avoids >1 mV error in 3-MΩ source impedance sensor circuits |
| Rail-to-rail output | Swings to within 0.2 V of V−/V+ at 10 kΩ - maximizes dynamic range in 3.3-V or 5-V single-supply systems |
| High PSRR & CMRR | ≥132 dB CMRR and ≥120 dB PSRR - sustains accuracy in noisy switch-mode power supply environments |
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 preamplifier in analog front-end with 16-bit settling and minimal group delay variation. Use Value: 2.2 nV/√Hz noise density and 2.6 µs 16-bit settling preserve SNR >78 dB across 1–10 MHz bandwidth. |
Use Scenario: Isolating and scaling biopotential signals (ECG, EEG, SpO₂) with simultaneous multi-channel acquisition. IC Role / Device Role / Timing Role: Dual-channel precision buffer and gain stage with matched offset and drift across channels. Use Value: ±5 µV offset matching and ±0.1 µV/°C drift matching reduce inter-channel calibration burden by >90%. |
| Spectrum Analyzer Front-End | Lab Instrumentation DAQ |
Use Scenario: Driving anti-aliasing filters and ADC drivers in RF receiver chains requiring wide dynamic range. IC Role / Device Role / Timing Role: High-linearity, low-distortion gain block with THD+N < –135 dB at 1 kHz. Use Value: 132 dB CMRR and 18 MHz GBW enable >100 dB SFDR in 10-MHz IF stages without external trimming. |
Use Scenario: Digitizing calibrated sensor outputs (strain gauges, RTDs) in benchtop multimeters and calibrators. IC Role / Device Role / Timing Role: Precision instrumentation amplifier core with low thermal EMF and stable DC gain. Use Value: 0.1 µV/°C drift and 35 µV max offset ensure <1 LSB error over 0–50°C in 24-bit sigma-delta systems. |
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 quiescent current; no phase reversal protection | Better for ultra-low-noise DC-coupled photodiode amps; unsuitable where input overdrive is possible | Select OPA211IDR only when noise dominates power budget and input stays within CM range |
| ADA4625-1ARZ | FET-input (0.5 pA IB), 2.9 nV/√Hz noise, 12 MHz GBW, ±15 V max supply | Preferred for high-impedance pH/electrochemical sensors; lower bandwidth limits fast settling | Choose ADA4625-1ARZ for >100-MΩ source impedances or where input leakage must be <1 pA |
Compared with OPA210IDT, OPA211IDR trades 50% higher supply current for 45% lower voltage noise and lacks phase-reversal immunity, while ADA4625-1ARZ offers femtoampere bias but sacrifices 33% bandwidth and rail-to-rail output - making OPA210IDT optimal for balanced precision, speed, and robustness in medical and test gear.
Availability
OPA210IDT is available at Aetrix Electronics and suitable for ultrasound scanners, patient monitors, and spectrum analyzers requiring stable component supply with guaranteed long-term manufacturability and TI's 10-year product longevity commitment.
Supply support for OPA210IDT 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 op amp innovation and broad manufacturing scale.
The OPAx210 family was designed for high-accuracy, low-noise data acquisition systems demanding sub-microvolt stability, wide supply tolerance, and immunity to input overdrive - targeting medical imaging, automated test equipment, and precision metrology.
FAQ
What is the maximum supply voltage for OPA210IDT?
The absolute maximum supply voltage for OPA210IDT is 40 V total (i.e., V+ − V− ≤ 40 V). Operation beyond ±18 V (36 V total) risks permanent damage. Recommended operating range is ±2.25 V to ±18 V, or 4.5 V to 36 V single supply. Always observe derating curves in Section 6.1 of the SBOS924H datasheet for OPA210IDT.
Does OPA210IDT support rail-to-rail input?
No, OPA210IDT does not support rail-to-rail input. Its common-mode input voltage range is specified as (V−) + 1.5 V to (V+) − 1.5 V - a 3-V exclusion zone near each rail. However, it does provide rail-to-rail output swing (within 0.2 V of V−/V+ at 10 kΩ), which is explicitly confirmed in Section 6.6 of the OPA210IDT datasheet.
Is OPA210IDT pin-compatible with OPA2210IDR?
No, OPA210IDT is not pin-compatible with OPA2210IDR. OPA210IDT is a dual-channel op amp in SOIC-8 with pins 1/5/8 as NC, whereas OPA2210IDR is also dual-channel but uses all eight pins for active functions (including both inputs and outputs for two independent amplifiers). Their pinouts differ fundamentally - see Tables 5-1 and 5-2 in the SBOS924H datasheet for OPA210IDT and OPA2210IDR.
What is the thermal resistance (RθJA) of OPA210IDT in SOIC-8 package?
The junction-to-ambient thermal resistance (RθJA) for OPA210IDT in the SOIC-8 (D) package is 131.2°C/W, as measured per JEDEC JESD51-2 with standard 2-layer board conditions. This value assumes no added copper pour; adding 1-in² thermal pad under the package reduces effective RθJA by ~25%, per Section 6.4 of the OPA210IDT datasheet.
Can OPA210IDT drive capacitive loads without oscillation?
Yes, OPA210IDT is stable driving ≥100 pF capacitive loads in unity-gain configuration, as verified in Figure 6-37 of the SBOS924H datasheet. For loads >500 pF, TI recommends adding a small series resistor (10–50 Ω) between output and capacitance to maintain phase margin >60°, especially in high-gain configurations.
OPA210IDT 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
OPA210IDT FAQ
1.How can I place an order for OPA210IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA210IDT 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 OPA210IDT reliable?
The price and inventory of OPA210IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA210IDT is usually 5 days.
3.What payment methods are accepted for OPA210IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA210IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA210IDT?
OPA210IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA210IDT 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 OPA210IDT?
For technical support, including OPA210IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA210IDT requirements.
6.How does Aetrix verify that OPA210IDT is sourced from the original manufacturer or authorized distributors?
All OPA210IDT 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 OPA210IDT meets industry standards.
7.What is the process for return or replacement of OPA210IDT?
All OPA210IDT units undergo pre-shipment inspection (PSI). If there is an issue with OPA210IDT, 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 OPA210IDT part is unused and in its original packaging.
Return procedure for OPA210IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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