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Texas Instruments OPA2330AIDGKRG4
- Part No.:
- OPA2330AIDGKRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2330AIDGKRG4.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2CIRC 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,892
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Product details
Overview
OPA2330AIDGKRG4 from Texas Instruments is a dual-channel, zero-drift CMOS operational amplifier optimized for precision, low-power, single-supply operation. It delivers 50 µV maximum input offset voltage, 0.25 µV/°C maximum drift, 35 µA maximum quiescent current per amplifier, rail-to-rail input/output swing, and operates from 1.8 V to 5.5 V. It is used in battery-powered instrumentation, temperature sensing, and bidirectional low-side current sense circuits.
For engineers reviewing the OPA2330AIDGKRG4 datasheet, OPA2330AIDGKRG4 pinout, OPA2330AIDGKRG4 application, or OPA2330AIDGKRG4 equivalent, key selection criteria include ultra-low offset drift over temperature, sub-1-µVPP 0.1–10 Hz noise, EMI-hardened input structure, and compatibility with unregulated battery rails down to 1.8 V.
Technical Context
The OPA2330AIDGKRG4 employs a proprietary auto-calibration architecture that continuously corrects input offset and 1/f noise without chopper-induced switching artifacts or output glitches. Its dual-channel layout shares no internal signal coupling-channel separation is dc-isolated at 0.1 µV/V, enabling independent high-precision signal paths.
It features internal EMI filtering via 10-kΩ series resistors on both inputs, rail-to-rail input common-mode range extending 0.1 V beyond supply rails, and output swing within 100 mV of each rail under 10-kΩ load-enabling full dynamic range utilization in low-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 50 µV max - ensures ≤0.5 mV error in 10 V full-scale measurement without trimming |
| Offset Drift | 0.25 µV/°C max - contributes <3 µV error across –40°C to +125°C ambient range |
| Quiescent Current | 35 µA per amplifier max - enables multi-year battery life in always-on sensor nodes |
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct connection to Li-ion (3.0–4.2 V), coin cell (1.8–3.0 V), or regulated 3.3 V rails |
| 0.1–10 Hz Noise | 1.1 µVPP - critical for stable DC gain in thermopile, strain gauge, and RTD front ends |
| CMRR | 115 dB typ - rejects common-mode interference in noisy industrial or automotive environments |
| Gain-Bandwidth | 350 kHz - sufficient for anti-aliasing and sensor signal conditioning up to ~35 kHz closed-loop bandwidth |
Pinout & Package
The OPA2330AIDGKRG4 is housed in an 8-pin VSSOP (DGK) package measuring 3.0 mm × 3.0 mm with exposed thermal pad on underside, optimized for space-constrained PCB layouts and improved thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load; rail-to-rail swing within 100 mV of V+ or V− |
| 2 | –IN A | Inverting input for channel A - connected to feedback network or transducer return path |
| 3 | +IN A | Noninverting input for channel A - accepts low-level sensor signals with 0.1 V beyond-rail common-mode range |
| 4 | V− | Negative supply - must be connected to ground or negative rail; thermal pad tied to this pin |
| 5 | +IN B | Noninverting input for channel B - electrically isolated from channel A; supports dual-sensor configurations |
| 6 | –IN B | Inverting input for channel B - independent bias current path; no crosstalk with channel A |
| 7 | OUT B | Amplifier B output - fully independent output stage; no shared internal nodes with OUT A |
| 8 | V+ | Positive supply - accepts 1.8–5.5 V; powers both amplifiers and internal calibration circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Zero-Drift Auto-Calibration | Continuous correction of offset and 1/f noise without output discontinuities or frequency-domain spurs |
| Rail-to-Rail I/O | Input common-mode extends 0.1 V beyond supplies; output swings to within 100 mV of rails at 10 kΩ load |
| Internal EMI Filtering | 10-kΩ series resistors on both inputs suppress RF rectification from 100 MHz–2 GHz cellular/WiFi bands |
| Low-Voltage Operation | Functional at 1.8 V supply - enables direct use with primary alkaline, lithium, or rechargeable coin cells |
| High PSRR | 115 dB typical - maintains accuracy when powered from noisy switchers or unregulated battery sources |
Applications
| Battery-Powered Instrumentation | Temperature Measurement |
|---|---|
Use Scenario: Portable multimeter or handheld data logger operating from two AA batteries (2.4–3.2 V). IC Role / Device Role / Timing Role: Dual op-amp configures one channel as precision buffer for thermistor divider, second as reference buffer for ADC driver. Use Value: 35 µA per amplifier enables >5-year battery life; 50 µV offset avoids calibration drift between field deployments. | Use Scenario: Industrial oven controller using RTD (Pt100) with 4-wire Kelvin sensing. IC Role / Device Role / Timing Role: One channel performs low-gain, low-noise excitation and sensing; second provides reference voltage buffering. Use Value: 0.25 µV/°C drift ensures <±0.05°C measurement error over full –40°C to +125°C system range. |
| Transducer Signal Conditioning | Bidirectional Low-Side Current Sense |
Use Scenario: Strain-gauge load cell in medical scale with 10 mV/V sensitivity and 2.5 V excitation. IC Role / Device Role / Timing Role: Configured as precision instrumentation amplifier (with external resistors) for 1000× gain and common-mode rejection. Use Value: 115 dB CMRR eliminates power-supply ripple and motor noise; 1.1 µVPP 0.1–10 Hz noise preserves resolution to 16-bit effective ENOB. | Use Scenario: Motor control board monitoring bidirectional current through 10-mΩ shunt in H-bridge output stage. IC Role / Device Role / Timing Role: Dual amplifier implements differential sensing (IN+–IN−) and level-shifting to MCU ADC input. Use Value: Rail-to-rail input allows direct connection to shunt placed between load and ground; 50 µV offset enables ±1% accuracy at 100 mA full-scale. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDGKR | Same zero-drift architecture; 17 µA IQ (vs 35 µA); 350 kHz GBW; 1.8–5.5 V supply | Lower power ideal for energy-harvesting or ultra-long-life battery systems; identical pinout and footprint | Select when quiescent current is primary constraint and 350 kHz bandwidth suffices |
| MCP6V72-E/SN | Zero-drift CMOS; 60 µV VOS max; 0.4 µV/°C drift; 65 µA IQ; 1.6–5.5 V supply | Higher drift and current; wider supply range; available in SOIC-8 but not VSSOP-8 | Select only if SOIC-8 package required and higher drift acceptable for cost-sensitive designs |
Compared with OPA2330AIDGKRG4, OPA2333AIDGKR offers half the quiescent current at identical performance and pinout, while MCP6V72-E/SN trades lower cost and wider supply range for higher offset drift and no VSSOP-8 option-making OPA2330AIDGKRG4 optimal for space-constrained, battery-powered precision analog front ends.
Availability
OPA2330AIDGKRG4 is available at Aetrix Electronics and suitable for battery-powered instrumentation, temperature measurement systems, and bidirectional low-side current sense applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA2330AIDGKRG4 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 delivering analog and embedded processing solutions, with leadership in precision analog, power management, and signal chain technologies.
The OPA2330AIDGKRG4 belongs to TI's Zero-Drift Operational Amplifier product line, designed specifically for high-accuracy, low-power, battery-operated measurement systems where offset stability over temperature and time is critical.
FAQ
What is the maximum operating temperature range for the OPA2330AIDGKRG4?
The OPA2330AIDGKRG4 is specified for continuous operation from –40°C to +125°C ambient temperature, with all electrical characteristics guaranteed across this full industrial temperature range. This makes it suitable for deployment in harsh environments such as automotive engine compartments, industrial motor drives, and outdoor sensor nodes where thermal extremes are expected. The device's zero-drift architecture ensures consistent performance without recalibration across the entire range.
Does the OPA2330AIDGKRG4 require external capacitors for stability?
No, the OPA2330AIDGKRG4 is unity-gain stable and does not require external compensation capacitors. It maintains phase margin >60° and exhibits clean step response with no peaking or ringing when configured in standard non-inverting or inverting gain configurations down to G = 1. This simplifies design and reduces bill-of-materials count, especially in space-constrained applications like portable medical devices or IoT sensor modules where the OPA2330AIDGKRG4 is commonly deployed.
Can the OPA2330AIDGKRG4 be used with a single 2.0 V supply?
Yes, the OPA2330AIDGKRG4 operates reliably with a single 2.0 V supply (V+ = 2.0 V, V− = 0 V), meeting all recommended operating conditions. Its rail-to-rail input extends 0.1 V beyond the rails (–0.1 V to +2.1 V), and its output swings to within 100 mV of each rail under 10 kΩ load. This capability enables direct interface with low-voltage microcontrollers and ADCs in energy-efficient systems such as wearable health monitors where the OPA2330AIDGKRG4 serves as front-end signal conditioner.
Is the thermal pad on the OPA2330AIDGKRG4 package electrically connected?
Yes, the exposed thermal pad on the bottom of the OPA2330AIDGKRG4's VSSOP-8 (DGK) package is internally connected to the V− pin. It must be soldered to a PCB copper pour tied to the system ground or negative supply plane to ensure proper thermal dissipation and electrical reference integrity. Failure to connect the pad may result in elevated junction temperature, degraded long-term offset stability, and potential violation of absolute maximum ratings during sustained output loading.
How does the OPA2330AIDGKRG4 handle input overvoltage conditions?
The OPA2330AIDGKRG4 input terminals are diode-clamped to the supply rails, allowing momentary input voltages up to ±0.3 V beyond V+ or V− without damage-if input current is limited to ≤10 mA. For sustained overvoltage, external series resistors (e.g., 10 kΩ) are recommended to protect against ESD and transient events. This robustness supports reliable operation in real-world sensor interfaces where the OPA2330AIDGKRG4 conditions signals from unshielded or long-cable-connected transducers exposed to EMI or electrostatic discharge.
OPA2330AIDGKRG4 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:
- Discontinued at Digi-Key
- Amplifier Type:
- CMOS, Zero-Drift
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.16V/µs
- Gain Bandwidth Product:
- 350 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 pA
- Voltage - Input Offset:
- 8 µV
- Current - Supply:
- 21µA (x2 Channels)
- Current - Output / Channel:
- 5 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA2330AIDGKRG4 FAQ
1.How can I place an order for OPA2330AIDGKRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2330AIDGKRG4 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 OPA2330AIDGKRG4 reliable?
The price and inventory of OPA2330AIDGKRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2330AIDGKRG4 is usually 5 days.
3.What payment methods are accepted for OPA2330AIDGKRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2330AIDGKRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2330AIDGKRG4?
OPA2330AIDGKRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2330AIDGKRG4 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 OPA2330AIDGKRG4?
For technical support, including OPA2330AIDGKRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2330AIDGKRG4 requirements.
6.How does Aetrix verify that OPA2330AIDGKRG4 is sourced from the original manufacturer or authorized distributors?
All OPA2330AIDGKRG4 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 OPA2330AIDGKRG4 meets industry standards.
7.What is the process for return or replacement of OPA2330AIDGKRG4?
All OPA2330AIDGKRG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2330AIDGKRG4, 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 OPA2330AIDGKRG4 part is unused and in its original packaging.
Return procedure for OPA2330AIDGKRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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