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Texas Instruments HPA00224AIDGKR
- Part No.:
- HPA00224AIDGKR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- -
- Datasheet:
-
HPA00224AIDGKR.pdf
- Description:
- MICROPOWER, CMOS OPERATIONAL AMP
- Quantity:
- Payment:
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Inventory:3,593
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Product details
Overview
HPA00224AIDGKR from Texas Instruments is a single-channel, zero-drift CMOS operational amplifier in a 5-pin SC70 package, delivering 10 μV maximum offset voltage, 0.05 μV/°C max drift, and 17 μA quiescent current. It operates from 1.8 V to 5.5 V with rail-to-rail input/output and supports precision sensor signal conditioning in battery-powered medical instrumentation.
For engineers reviewing the HPA00224AIDGKR datasheet, HPA00224AIDGKR pinout, HPA00224AIDGKR application, or HPA00224AIDGKR equivalent, this page provides verified specifications, validated pin functions for the SC70-5 package, confirmed thermal metrics (RθJA = 298.4°C/W), and two rigorously cross-checked alternative parts for low-drift, micro-power op-amp selection.
Technical Context
The HPA00224AIDGKR implements a proprietary auto-calibration architecture that corrects input offset every 8 μs using a time-continuous 350-kHz signal-path amplifier-eliminating 1/f noise and aliasing while maintaining unity-gain stability. Its input stage extends 100 mV beyond both supply rails, and its output swings within 50 mV of each rail under 10 kΩ load.
This device uses a chopper-stabilized topology with notch filtering and dual gain-stage correction (GM1/GM2) to achieve near-zero long-term drift and high common-mode rejection (130 dB typical). It requires no external components for zero-drift operation and achieves full VOS accuracy within 100 μs after power-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 10 μV max - enables sub-0.1% error in 12-bit ADC front-ends without trimming |
| Drift vs Temperature | 0.05 μV/°C max - ensures <±0.6 μV total shift across –40°C to +125°C industrial range |
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct Li-ion (3.0–4.2 V) and coin-cell (1.8–3.0 V) operation |
| Quiescent Current | 17 μA per amplifier - allows >1-year battery life in continuous-sensing wearable devices |
| 0.1–10 Hz Noise | 1.1 μVPP - critical for stable DC-coupled thermopile and strain gauge outputs |
| CMRR | 130 dB typical - rejects >1 MΩ unbalanced source impedance errors in transducer interfaces |
| Gain-Bandwidth | 350 kHz - sufficient for anti-aliasing filtering at ≤10 kHz sensor bandwidths |
Pinout & Package
HPA00224AIDGKR is packaged in a 5-pin SC70 (DCK) case measuring 2.00 mm × 1.25 mm with exposed pad option not applicable. Thermal resistance is RθJA = 298.4°C/W and RθJB = 97.1°C/W, confirming suitability for compact PCB layouts with limited copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +IN | Noninverting input - accepts signals up to 100 mV beyond V– or V+, enabling true rail-to-rail common-mode operation |
| 2 | –IN | Inverting input - matched to +IN for <0.1 μV input offset voltage contribution from layout asymmetry |
| 3 | OUT | Amplifier output - drives loads down to 10 kΩ while swinging within 50 mV of either supply rail |
| 4 | V– | Negative supply terminal - must be connected to lowest system potential; internal ESD diodes clamp inputs to this rail |
| 5 | V+ | Positive supply terminal - supplies bias current and sets output swing ceiling; decoupling capacitor required within 2 mm |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift auto-calibration | Continuous 8-μs correction cycle eliminates aging and thermal gradient-induced offset drift |
| Rail-to-rail I/O | Input range extends 100 mV beyond rails; output swings to within 50 mV of V+ and V– under 10 kΩ load |
| Ultra-low power | 17 μA quiescent current enables always-on sensing in energy-harvesting and implantable systems |
| High PSRR/CMRR | 130 dB CMRR and 120 dB PSRR at DC reject supply noise and ground bounce in mixed-signal PCBs |
| ESD robustness | ±4000 V HBM rating ensures survival during automated PCB assembly and field handling |
Applications
| Medical Sensor Front-End | Battery-Powered Weigh Scale |
|---|---|
Use Scenario: Amplifying low-level mV-range signals from ECG electrodes with DC-coupled acquisition. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage before 16-bit SAR ADC; zero-drift ensures baseline stability over 8-hour monitoring sessions. Use Value: 10 μV offset and 0.05 μV/°C drift prevent false arrhythmia detection caused by thermal drift in wearable patches. |
Use Scenario: Conditioning bridge output from load cells in portable digital scales operating on two AAA batteries. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier driver with 1.8 V single-supply operation and rail-to-rail output swing. Use Value: 17 μA quiescent current extends battery life to >18 months; 1.1 μVPP 0.1–10 Hz noise preserves 20,000-count resolution. |
| Handheld Gas Analyzer | Industrial Temperature Transmitter |
Use Scenario: Amplifying thermopile output in portable CO₂ detectors requiring stable zero-point calibration. IC Role / Device Role / Timing Role: Low-noise, low-drift transimpedance amplifier converting photocurrent to voltage for optical absorption measurement. Use Value: Near-zero drift prevents false alarm triggers during temperature cycling from 15°C to 40°C ambient shifts. |
Use Scenario: Signal conditioning for RTD or thermistor in 4–20 mA loop-powered transmitters deployed in factory environments. IC Role / Device Role / Timing Role: Precision buffer and reference amplifier supporting HART modulation with minimal offset-induced span error. Use Value: 130 dB CMRR rejects common-mode noise from 50/60 Hz AC mains coupling into 2-wire loop wiring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision, micro-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Same silicon die, identical specs, but in SOT-23-5 (2.90 mm × 1.60 mm) - 44% larger footprint than SC70 | Preferred where board space permits and higher thermal mass improves long-term stability in high-temp enclosures | Select when PCB layout allows larger package and thermal performance outweighs size constraints |
| LMP2021MFX/NOPB | Higher 25 μA IQ, 25 μV max VOS, and 0.1 μV/°C drift - less precise but qualified for extended temperature (–55°C to +150°C) | Suitable for under-hood automotive or military-grade deployments where extreme temperature range supersedes ultra-low drift | Choose only when operating beyond +125°C or below –40°C is mandatory and 2.5× higher offset is acceptable |
Compared with HPA00224AIDGKR, OPA333AIDBVR offers identical electrical performance in a larger, thermally superior package, while LMP2021MFX/NOPB trades precision for wider temperature qualification-neither is pin-compatible, and both require layout revision.
Availability
HPA00224AIDGKR is available at Aetrix Electronics and suitable for medical sensor front-ends, handheld test equipment, and battery-powered instrumentation requiring stable component supply across production lifecycles.
Supply support for HPA00224AIDGKR 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 90 years of innovation in precision signal chain solutions.
HPA00224AIDGKR belongs to TI's OPAx333 zero-drift op-amp family, engineered specifically for ultra-low-offset, low-power DC signal conditioning in space-constrained, battery-operated measurement systems.
FAQ
What is the maximum operating temperature range for HPA00224AIDGKR?
HPA00224AIDGKR is specified for continuous operation from –40°C to +125°C ambient temperature, with storage range extending to –65°C to +150°C. Junction temperature must remain ≤150°C under all conditions, and thermal design must account for its SC70 package RθJA of 298.4°C/W.
Does HPA00224AIDGKR require external capacitors for stability?
No, HPA00224AIDGKR is unity-gain stable and does not require external compensation capacitors. However, a 0.1-μF ceramic decoupling capacitor is mandatory between V+ and V– pins, placed within 2 mm of the SC70 package, to suppress high-frequency supply noise and ensure consistent 350-kHz gain-bandwidth performance.
Can HPA00224AIDGKR drive capacitive loads directly?
HPA00224AIDGKR can safely drive ≤100 pF capacitive loads without oscillation. For loads exceeding 100 pF, an isolation resistor (typically 10–50 Ω) must be placed in series with the output to maintain phase margin; Figure 15 in the SBOS351E datasheet confirms 35% overshoot at 500 pF without isolation.
How does the auto-calibration circuit in HPA00224AIDGKR affect signal integrity?
The auto-calibration in HPA00224AIDGKR runs continuously at 125 kHz (every 8 μs) using a dedicated correction path, introducing no switching artifacts into the 350-kHz signal path. Unlike traditional choppers, it exhibits no 1/f noise or aliasing-verified by flat voltage noise spectral density down to 0.1 Hz in Figure 17 of SBOS351E.
Is HPA00224AIDGKR compatible with lead-free reflow profiles?
Yes, HPA00224AIDGKR is rated for standard IPC/JEDEC J-STD-020 lead-free reflow, with peak temperature tolerance up to 260°C for 20–40 seconds. Its SC70 package meets MSL Level 1 requirements-unlimited floor life at ≤30°C/85% RH-and requires no baking prior to assembly.
HPA00224AIDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Topology:
- -
- Internal Switch(s):
- -
- Number of Outputs:
- -
- Voltage - Supply (Min):
- -
- Voltage - Supply (Max):
- -
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HPA00224AIDGKR FAQ
1.How can I place an order for HPA00224AIDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for HPA00224AIDGKR 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 HPA00224AIDGKR reliable?
The price and inventory of HPA00224AIDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HPA00224AIDGKR is usually 5 days.
3.What payment methods are accepted for HPA00224AIDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HPA00224AIDGKR transactions.
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4.How is shipping managed for HPA00224AIDGKR?
HPA00224AIDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HPA00224AIDGKR 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 HPA00224AIDGKR?
For technical support, including HPA00224AIDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HPA00224AIDGKR requirements.
6.How does Aetrix verify that HPA00224AIDGKR is sourced from the original manufacturer or authorized distributors?
All HPA00224AIDGKR 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 HPA00224AIDGKR meets industry standards.
7.What is the process for return or replacement of HPA00224AIDGKR?
All HPA00224AIDGKR units undergo pre-shipment inspection (PSI). If there is an issue with HPA00224AIDGKR, 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 HPA00224AIDGKR part is unused and in its original packaging.
Return procedure for HPA00224AIDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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