My Inquiry
My Account
Texas Instruments OPA4330AID
- Part No.:
- OPA4330AID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA4330AID.pdf
- Description:
- IC OPAMP ZERO-DRIFT 4CIRC 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,451
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA4330AID from Texas Instruments is a quad-channel, zero-drift CMOS operational amplifier optimized for precision low-voltage operation (1.8 V to 5.5 V). It delivers 50 µV max input offset voltage, 0.25 µV/°C max drift, 35 µA max quiescent current per channel, rail-to-rail input/output swing, and 350 kHz gain-bandwidth - enabling high-accuracy signal conditioning in battery-powered instrumentation and sensor interfaces.
For engineers reviewing the OPA4330AID datasheet, OPA4330AID pinout, OPA4330AID application, or OPA4330AID equivalent, key selection criteria include its guaranteed 50 µV VOS over temperature, ultra-low 0.25 µV/°C drift, 1.1 µVPP (0.1–10 Hz) noise, 115 dB CMRR, and SOIC-14 package compatibility with industrial-grade –40°C to +125°C operation.
Technical Context
The OPA4330AID employs Texas Instruments' proprietary auto-calibration architecture that continuously corrects input offset and drift without chopper-induced ripple or intermodulation artifacts. Its dual-stage chopping design suppresses 1/f noise while maintaining flat spectral density down to 0.01 Hz.
This amplifier operates as a unity-gain-stable, rail-to-rail I/O precision op amp with internal EMI filtering, no phase reversal, and input common-mode range extending 0.1 V beyond supply rails. It supports single-supply configurations as low as 1.8 V and is specified across full industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VOS (max) | 50 µV - ensures ≤0.5 mV total offset error at 10× gain in 5 V systems |
| dVOS/dT (max) | 0.25 µV/°C - guarantees <1.25 µV drift over 50°C ambient shift |
| IQ per channel (max) | 35 µA - enables four-channel precision amplification under 140 µA total supply current |
| GBW | 350 kHz - supports stable closed-loop gain ≥10 up to ~35 kHz |
| Noise (0.1–10 Hz) | 1.1 µVPP - suitable for DC-coupled thermocouple and strain gauge front ends |
| CMRR (min) | 100 dB - rejects >100× common-mode interference in unbalanced sensor bridges |
| Supply Range | 1.8 V to 5.5 V - operates directly from single Li-ion or dual AA cells without regulation |
| Output Swing | Within 30 mV of rails - delivers full dynamic range into 10 kΩ loads at low supply voltages |
Pinout & Package
OPA4330AID is packaged in a 14-pin SOIC (D package), 8.65 mm × 3.91 mm body size, with exposed thermal pad connected to V– for enhanced thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (Pin 1) | Amplifier A output | Drives external load; rail-to-rail swing supports direct ADC interface |
| –IN A (Pin 2) | Inverting input A | Accepts differential or single-ended signals; 0.1 V beyond rails common-mode range |
| +IN A (Pin 3) | Noninverting input A | High-impedance node (±200 pA bias); matched to –IN A for minimal offset |
| V+ (Pin 4) | Positive supply | Connects to main system rail (1.8–5.5 V); decoupling required within 1 cm |
| +IN B (Pin 5) | Noninverting input B | Independent channel B input; electrically isolated from other channels |
| –IN B (Pin 6) | Inverting input B | Supports dual-sensor or differential pair configuration with channel A |
| OUT B (Pin 7) | Amplifier B output | Provides second independent output; identical AC/DC specs to OUT A |
| OUT C (Pin 8) | Amplifier C output | Third channel output; enables 3-channel simultaneous acquisition |
| +IN C (Pin 9) | Noninverting input C | Third channel positive input; shares same layout sensitivity as A/B inputs |
| –IN C (Pin 10) | Inverting input C | Third channel negative input; maintains matched parasitics for common-mode rejection |
| V– (Pin 11) | Negative supply | Reference for all four amplifiers; thermal pad must be soldered to PCB ground plane |
| +IN D (Pin 12) | Noninverting input D | Fourth channel input; completes quad-channel signal path capability |
| –IN D (Pin 13) | Inverting input D | Fourth channel inverting input; enables fully independent 4× instrumentation paths |
| OUT D (Pin 14) | Amplifier D output | Final channel output; supports multi-sensor monitoring or redundancy schemes |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift auto-calibration | Eliminates manual trimming and reduces calibration frequency in field-deployed instruments |
| Rail-to-rail input/output | Enables full utilization of ADC reference range in single-supply 3.3 V data loggers |
| Internal EMI filtering | Rejects 100 MHz–1 GHz RF interference without external ferrites or RC networks |
| Low 1/f noise profile | Preserves signal integrity in DC-coupled medical sensors where flicker noise dominates |
| –40°C to +125°C operation | Validated performance across automotive under-hood and industrial control environments |
| SOIC-14 footprint | Drop-in replacement for legacy quad op amps without PCB redesign |
Applications
| Temperature Measurement | Electronic Scale Front End |
|---|---|
Use Scenario: Precision cold-junction compensation and thermocouple signal amplification in portable handheld meters. IC Role / Device Role / Timing Role: Quad OPA4330AID channels condition four thermocouple outputs simultaneously with matched gain and offset. Use Value: 0.25 µV/°C drift ensures <0.1°C measurement error over 40°C ambient variation without recalibration. | Use Scenario: Strain gauge bridge excitation and differential output amplification in digital kitchen or industrial scales. IC Role / Device Role / Timing Role: One channel provides regulated bridge excitation; remaining three amplify and filter bridge outputs. Use Value: 50 µV max VOS prevents zero-point drift during long-term static weighing, improving repeatability. |
| Battery-Powered Data Logger | Medical Instrumentation Signal Chain |
Use Scenario: Multi-sensor environmental monitoring (temp, humidity, pressure) in solar-charged remote nodes. IC Role / Device Role / Timing Role: Four independent OPA4330AID amplifiers buffer and level-shift analog sensor outputs prior to multiplexing. Use Value: 35 µA per channel quiescent current enables >1-year battery life on two AA cells at 1-sample-per-minute duty cycle. | Use Scenario: Low-noise biopotential amplification (ECG, EMG) in portable diagnostic devices. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with matched OPA4330AID pairs for high CMRR and DC stability. Use Value: 1.1 µVPP (0.1–10 Hz) noise floor preserves microvolt-level cardiac signals without additional filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4336AID | Higher 17 µV typical VOS, 0.5 µV/°C drift, 55 µA IQ; no internal EMI filter | Less suited for noisy industrial environments or battery-life-critical designs | Select when cost is primary constraint and drift/noise requirements are relaxed by 2× |
| AD8628ARZ-REEL | Single-channel only; 1 µV typical VOS, 0.005 µV/°C drift, 850 µA IQ; higher power consumption | Requires four separate packages and layout area; unsuitable for space-constrained PCBs | Select only when sub-microvolt offset is mandatory and board area/power budget allow quad duplication |
Compared with OPA4330AID, OPA4336AID trades precision for lower cost and AD8628ARZ-REEL delivers superior offset performance at 24× higher quiescent current and quadrupled footprint - making OPA4330AID the optimal balance of accuracy, power, integration, and manufacturability for multi-channel embedded sensing.
Availability
OPA4330AID is available at Aetrix Electronics and suitable for battery-powered instrumentation, temperature measurement systems, and electronic scale front ends requiring stable component supply across extended product lifecycles.
Supply support for OPA4330AID 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 for industrial, automotive, and personal electronics markets.
The OPA4330AID belongs to TI's Zero-Drift Operational Amplifier product line, engineered specifically for high-accuracy, low-power signal conditioning in unregulated battery-powered and thermally variable environments.
FAQ
What is the maximum operating temperature range for the OPA4330AID?
The OPA4330AID is fully specified from –40°C to +125°C ambient temperature. All electrical characteristics-including input offset voltage, drift, CMRR, and quiescent current-are guaranteed across this full industrial temperature range per the SBOS432G datasheet revision G. This makes OPA4330AID suitable for under-hood automotive and factory-floor industrial deployments where thermal stability is critical.
Does the OPA4330AID require external capacitors for stability?
No, the OPA4330AID is unity-gain stable and does not require external compensation capacitors. It drives capacitive loads up to 100 pF while maintaining phase margin per Figure 14 in the SBOS432G datasheet. For loads exceeding 100 pF, a small series resistor (10–50 Ω) between output and load is recommended to isolate capacitance and preserve stability.
Can the OPA4330AID operate from a single 1.8-V supply?
Yes, the OPA4330AID is explicitly characterized and guaranteed for operation from 1.8 V (±0.9 V) to 5.5 V (±2.75 V) supply rails. At 1.8 V, it maintains rail-to-rail input common-mode range (–0.1 V to +1.9 V) and output swing within 100 mV of both rails under 10-kΩ load, enabling direct interfacing with low-voltage ADCs and microcontrollers.
What is the input bias current specification for the OPA4330AID?
The OPA4330AID has a maximum input bias current of ±500 pA at 25°C and ±300 pA over the full –40°C to +125°C range. The typical value is ±200 pA. This ultra-low bias enables high-impedance sensor interfaces-such as pH electrodes or piezoresistive pressure transducers-without significant voltage error due to leakage.
Is the OPA4330AID pin-compatible with standard quad op amp footprints?
Yes, the OPA4330AID in SOIC-14 (AID suffix) uses the industry-standard 14-pin SOIC outline (8.65 mm × 3.91 mm), matching pin assignments for conventional quad op amps like LM324 or TL084. Pin 1 is OUT A, pins 2–3 are –IN/+IN A, and so on-enabling drop-in replacement in existing layouts without redesign.
OPA4330AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS, Zero-Drift
- Number of Circuits:
- 4
- 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 (x4 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:
- 14-SOIC
OPA4330AID FAQ
1.How can I place an order for OPA4330AID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4330AID 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 OPA4330AID reliable?
The price and inventory of OPA4330AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4330AID is usually 5 days.
3.What payment methods are accepted for OPA4330AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4330AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4330AID?
OPA4330AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4330AID 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 OPA4330AID?
For technical support, including OPA4330AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4330AID requirements.
6.How does Aetrix verify that OPA4330AID is sourced from the original manufacturer or authorized distributors?
All OPA4330AID 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 OPA4330AID meets industry standards.
7.What is the process for return or replacement of OPA4330AID?
All OPA4330AID units undergo pre-shipment inspection (PSI). If there is an issue with OPA4330AID, 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 OPA4330AID part is unused and in its original packaging.
Return procedure for OPA4330AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA4330AID Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
