My Inquiry
My Account
Texas Instruments OPA2330AIDRBT
- Part No.:
- OPA2330AIDRBT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
OPA2330AIDRBT.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 8SON
- Quantity:
- Payment:
- Shipping:
Inventory:114
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA2330AIDRBT 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 OPA2330AIDRBT datasheet, OPA2330AIDRBT pinout, OPA2330AIDRBT application, or OPA2330AIDRBT equivalent, key selection criteria include ultra-low offset drift over temperature, sub-35 µA per-channel supply current, 1.8 V minimum operating voltage, and guaranteed rail-to-rail I/O performance across –40°C to +125°C.
Technical Context
The OPA2330AIDRBT employs a proprietary auto-calibration architecture that continuously corrects input offset and 1/f noise without external components or user intervention. Its chopper-stabilized core includes notch filtering and dual-stage gain blocks (GM1/GM2) with feed-forward path (GM_FF) to maintain bandwidth and stability.
This dual-channel device supports unity-gain stable operation with 350 kHz gain-bandwidth product and 0.16 V/µs slew rate. Input common-mode range extends 0.1 V beyond both supply rails, and output swings within 100 mV of each rail under 10 kΩ load - enabling true single-supply signal conditioning in constrained voltage domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 50 µV max - ensures ≤0.5 mV error at 10× gain in 100 mV full-scale sensor interfaces |
| Drift vs Temp | 0.25 µV/°C max - contributes <3 µV total offset shift across –40°C to +125°C industrial range |
| Quiescent Current | 35 µA per amplifier max - enables multi-year battery life in always-on 3.3 V IoT sensor nodes |
| Supply 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 3.3/5 V rails |
| Input Voltage Range | (V–) – 0.1 V to (V+) + 0.1 V - eliminates level-shifting need for ground-referenced transducers |
| Output Swing | Within 100 mV of rails @ 10 kΩ - preserves >95% dynamic range in 1.8 V systems with 0–1.7 V output span |
| Gain-Bandwidth | 350 kHz - sufficient for DC–100 Hz sensor amplification with ≥10× phase margin at unity gain |
Pinout & Package
OPA2330AIDRBT is packaged in an 8-pin SON (DRB) package with 3 mm × 3 mm body size and exposed thermal die pad on underside, requiring connection to V– for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives downstream ADC input or filter stage with rail-to-rail capability |
| 2 | –IN A | Inverting input A - connects to feedback network or inverted sensor signal path |
| 3 | +IN A | Noninverting input A - accepts high-impedance sensor or reference voltage with 0.1 V beyond-rail tolerance |
| 4 | V– | Negative supply - must be connected to system ground or negative rail; thermal pad tied here |
| 5 | V+ | Positive supply - accepts 1.8–5.5 V; decoupling capacitor required within 1 cm |
| 6 | –IN B | Inverting input B - independent channel for differential pair, dual-sensor interface, or auxiliary function |
| 7 | OUT B | Amplifier B output - electrically isolated from OUT A; supports separate signal chain routing |
| 8 | +IN B | Noninverting input B - matches +IN A electrical characteristics; enables matched dual-channel design |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift auto-calibration | Continuous internal correction eliminates manual nulling and reduces calibration frequency in field-deployed instruments |
| Rail-to-rail I/O | Full input range and 100 mV rail headroom enable use in 1.8 V systems without supply boosting or level shifting |
| Internal EMI filtering | Integrated 10 kΩ resistors suppress RF interference from GSM, Wi-Fi, or switching regulators without external RC networks |
| Low 0.1–10 Hz noise | 1.1 µVPP enables stable DC-coupled measurements in electronic scales and thermopile-based temperature sensors |
| –40°C to +125°C operation | Specified performance across full automotive and industrial ambient range without derating or guard-banding |
Applications
| Battery-Powered Instrumentation | Temperature Measurement |
|---|---|
Use Scenario: Portable multimeter front-end amplifying mV-level thermocouple or RTD bridge outputs. IC Role / Device Role / Timing Role: Precision DC gain stage with ultra-low drift to preserve accuracy over hours of field use. Use Value: 0.25 µV/°C drift limits measurement error to <0.1°C over 40°C ambient change - critical for handheld calibration tools. |
Use Scenario: Medical-grade digital thermometer using thermistor in Wheatstone bridge configuration. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail buffer and amplifier for bridge output before 16-bit ADC sampling. Use Value: 1.1 µVPP 0.1–10 Hz noise ensures sub-0.05°C resolution in clinical temperature monitoring. |
| Transducer Signal Conditioning | Electronic Scales |
Use Scenario: Strain-gauge load cell interface in industrial weighing platform with 2.5 V excitation. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier driver with matched dual channels for ratiometric rejection. Use Value: 50 µV max VOS and 115 dB CMRR suppress common-mode errors from supply ripple and thermal gradients. |
Use Scenario: High-resolution kitchen scale using micro-strain gauges with 1.8 V MCU supply. IC Role / Device Role / Timing Role: Dual-channel signal conditioner: one channel for bridge amplification, second for reference buffer. Use Value: 35 µA per amplifier enables continuous weighing mode with >2-year CR2032 battery life at 1.8 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6V81-E/SN | Single-channel, 50 µV VOS, 0.25 µV/°C drift, but 55 µA IQ - 57% higher quiescent current than OPA2330AIDRBT | Lacks dual-channel integration - requires two devices for same functionality, increasing board area and BOM count | Select when single-channel operation suffices and Microchip ecosystem compatibility is prioritized |
| AD8638ARZ-REEL | Dual-channel, 10 µV VOS, 0.05 µV/°C drift, but 120 µA IQ - 243% higher supply current than OPA2330AIDRBT | Higher precision comes at cost of reduced battery runtime; not rated for 1.8 V operation (min 2.7 V) | Select only when sub-10 µV offset is mandatory and power budget allows ≥3× higher current draw |
Compared with MCP6V81-E/SN and AD8638ARZ-REEL, OPA2330AIDRBT uniquely balances ultra-low drift, dual-channel integration, and sub-35 µA per-amplifier consumption - making it optimal for space- and energy-constrained portable instrumentation where dual-signal paths must coexist on minimal PCB area and single coin-cell supply.
Availability
OPA2330AIDRBT is available at Aetrix Electronics and suitable for battery-powered instrumentation, temperature measurement systems, and electronic scales requiring stable component supply across extended production lifecycles.
Supply support for OPA2330AIDRBT 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The OPA2330AIDRBT belongs to TI's Zero-Drift series of precision op-amps, designed specifically for cost-sensitive, low-power applications demanding long-term DC accuracy without manual calibration - such as portable medical devices and smart sensors.
FAQ
What is the maximum operating temperature range for the OPA2330AIDRBT?
The OPA2330AIDRBT is fully specified from –40°C to +125°C ambient temperature. All key parameters-including offset voltage, drift, CMRR, and quiescent current-are guaranteed across this full industrial and automotive-grade range, with no derating required. This makes OPA2330AIDRBT suitable for under-hood automotive sensors and factory-floor industrial controllers where thermal extremes are routine.
Does the OPA2330AIDRBT require external capacitors for stability?
No, the OPA2330AIDRBT is unity-gain stable and does not require external compensation capacitors. Its internal architecture ensures ≥60° phase margin at all gains ≥1 with capacitive loads up to 100 pF. However, a 100 nF ceramic decoupling capacitor between V+ and V– is mandatory within 1 cm of the package to suppress supply noise and prevent oscillation in noisy environments.
Can the OPA2330AIDRBT operate from a single 1.8 V supply?
Yes, the OPA2330AIDRBT is explicitly characterized and guaranteed for operation down to 1.8 V (±0.9 V). At this voltage, 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 (0.1 V to 1.7 V), enabling direct interfacing with 1.8 V MCUs and ADCs without level-shifting circuitry - a key advantage over many competing precision op-amps.
How does the auto-calibration circuit in the OPA2330AIDRBT affect real-time performance?
The OPA2330AIDRBT's auto-calibration runs continuously at ~10 Hz and introduces no observable disruption to signal path integrity. Unlike older chopper amplifiers, its dual-stage architecture with feed-forward path ensures seamless correction without step artifacts or increased noise at correction frequencies. Measured 0.1–10 Hz noise remains at 1.1 µVPP, confirming that calibration activity does not degrade low-frequency fidelity in OPA2330AIDRBT.
Is the exposed thermal pad on the OPA2330AIDRBT's SON package required to be connected?
Yes, the exposed thermal die pad on the OPA2330AIDRBT DRB package must be soldered to a PCB copper pour connected to V–. This connection reduces RθJA from 46.7°C/W to ≤35°C/W in typical layouts, preventing thermal-induced offset drift and ensuring reliable operation at +125°C ambient. Leaving the pad unconnected risks exceeding junction temperature limits and invalidating the –40°C to +125°C specification guarantee for OPA2330AIDRBT.
OPA2330AIDRBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-SON (3x3)
OPA2330AIDRBT FAQ
1.How can I place an order for OPA2330AIDRBT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2330AIDRBT 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 OPA2330AIDRBT reliable?
The price and inventory of OPA2330AIDRBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2330AIDRBT is usually 5 days.
3.What payment methods are accepted for OPA2330AIDRBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2330AIDRBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2330AIDRBT?
OPA2330AIDRBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2330AIDRBT 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 OPA2330AIDRBT?
For technical support, including OPA2330AIDRBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2330AIDRBT requirements.
6.How does Aetrix verify that OPA2330AIDRBT is sourced from the original manufacturer or authorized distributors?
All OPA2330AIDRBT 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 OPA2330AIDRBT meets industry standards.
7.What is the process for return or replacement of OPA2330AIDRBT?
All OPA2330AIDRBT units undergo pre-shipment inspection (PSI). If there is an issue with OPA2330AIDRBT, 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 OPA2330AIDRBT part is unused and in its original packaging.
Return procedure for OPA2330AIDRBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2330AIDRBT 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…
