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Texas Instruments OPA2376AIDGKT
- Part No.:
- OPA2376AIDGKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2376AIDGKT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,931
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Product details
Overview
OPA2376AIDGKT from Texas Instruments is a dual-channel, rail-to-rail input/output precision operational amplifier with e-trim™ technology, delivering 5 µV typical offset voltage, 7.5 nV/√Hz input voltage noise at 1 kHz, and 5.5 MHz gain-bandwidth product - ideal for high-resolution ADC buffering in battery-powered medical sensors and portable test equipment.
For engineers reviewing the OPA2376AIDGKT datasheet, OPA2376AIDGKT pinout, OPA2376AIDGKT application, or OPA2376AIDGKT equivalent, key selection criteria include low quiescent current (760 µA per amplifier), wide supply range (2.2 V to 5.5 V), 0.8 µVPP 0.1–10 Hz noise, and guaranteed operation from –40°C to +125°C in VSSOP-8 packaging.
Technical Context
The OPA2376AIDGKT integrates TI's e-trim™ process for factory-trimmed dc precision, achieving 25 µV maximum input offset voltage and 0.32 µV/°C max drift over –40°C to +125°C. Its CMOS input stage delivers ultra-low input bias current (0.2 pA typ) and high open-loop gain (134 dB), enabling stable performance in high-impedance sensor interfaces.
Designed for single-supply operation, it supports rail-to-rail input common-mode range extending 100 mV beyond rails and rail-to-rail output swing within 20 mV of rails (at 10 kΩ load, 25°C). It drives capacitive loads up to 250 pF in unity-gain configuration without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 5.5 MHz - enables stable closed-loop gain ≥10 at 500 kHz for anti-aliasing filter design |
| Input Offset Voltage (max) | 25 µV - ensures ≤0.001% error in 2.5 V full-scale 16-bit ADC reference buffers |
| Quiescent Current (per amp) | 950 µA max - supports <1.9 mA total supply current in dual-channel portable instrumentation |
| Input Voltage Noise Density | 7.5 nV/√Hz at 1 kHz - preserves SNR in audio preamps and sensor signal chains below 20 kHz |
| Supply Voltage Range | 2.2 V to 5.5 V - operates directly from single Li-ion cell (3.0–4.2 V) or regulated 3.3 V/5 V rails |
| 0.1–10 Hz Noise | 0.8 µVPP - critical for DC-coupled medical ECG/EEG front-ends requiring sub-µV baseline stability |
| Output Swing (RL = 10 kΩ) | Within 20 mV of rails (25°C) - maximizes dynamic range in single-supply 12–16 bit data acquisition |
Pinout & Package
VSSOP-8 package: 3.00 mm × 3.00 mm body, 0.65 mm lead pitch, exposed thermal pad (DGK suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Inverting input of Amplifier A | High-impedance node (13 pF common-mode capacitance) for precision sensor voltage sensing |
| –IN A (Pin 2) | Non-inverting input of Amplifier A | Accepts common-mode voltages from (V–) – 0.1 V to (V+) – 1.3 V; enables rail-to-rail input operation |
| OUT A (Pin 1) | Output of Amplifier A | Drives 10 kΩ load to within 20 mV of rails; supports 250 pF capacitive load in unity-gain buffer mode |
| V+ (Pin 8) | Positive supply rail | Accepts 2.2–5.5 V; PSRR >90 dB ensures immunity to digital supply noise in mixed-signal PCBs |
| V– (Pin 4) | Negative supply rail | Typically ground in single-supply systems; supports true negative rail operation down to –5.5 V |
| +IN B (Pin 5) | Inverting input of Amplifier B | Independent channel for differential pair amplification or dual-path signal conditioning |
| –IN B (Pin 6) | Non-inverting input of Amplifier B | Matched to Channel A for <0.5 mV/V channel separation error in ratiometric applications |
| OUT B (Pin 7) | Output of Amplifier B | Simultaneous dual-output capability eliminates need for second op-amp in space-constrained layouts |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ DC precision | Factory-trimmed offset (5 µV typ, 25 µV max) and drift (0.32 µV/°C max) eliminate manual calibration |
| Rail-to-rail I/O | Input extends 100 mV beyond supplies; output swings to within 20 mV - maximizes usable signal range on 3.3 V rails |
| Low-noise architecture | 7.5 nV/√Hz @ 1 kHz + 0.8 µVPP 0.1–10 Hz enables µV-level resolution in DC-coupled biosensors |
| Capacitive load drive | Stable with up to 250 pF in unity-gain - simplifies ADC driver design without isolation resistors or compensation networks |
| Wide temperature range | Specified from –40°C to +125°C - qualified for automotive cabin electronics and industrial motor control feedback loops |
Applications
| ADC Buffer | Medical Instrumentation |
|---|---|
Use Scenario: Driving SAR ADC inputs (e.g., ADS8327, ADS1262) in portable data loggers with 16+ bit resolution. IC Role / Device Role / Timing Role: Precision voltage follower and anti-aliasing filter stage, maintaining signal integrity during fast sampling transitions. Use Value: 5.5 MHz GBW and 2 V/µs slew rate settle 16-bit codes in <2 µs; 0.8 µVPP noise prevents LSB corruption in DC-coupled measurements. |
Use Scenario: Front-end amplification in handheld ECG/EKG monitors requiring sub-µV baseline stability. IC Role / Device Role / Timing Role: Low-drift, low-noise instrumentation amplifier gain stage with DC-coupled input path. Use Value: 25 µV max offset and 0.32 µV/°C drift minimize calibration frequency; rail-to-rail output fully utilizes 3.3 V ADC reference. |
| Audio Equipment | Handheld Test Equipment |
Use Scenario: Microphone preamplifier and line-level signal conditioning in battery-powered audio analyzers. IC Role / Device Role / Timing Role: High-fidelity analog signal chain component with minimal added distortion and noise. Use Value: 0.00027% THD+N at 1 kHz preserves harmonic fidelity; 7.5 nV/√Hz noise floor supports >110 dB SNR in 20 kHz bandwidth. |
Use Scenario: Signal conditioning for multimeter input stages and portable oscilloscope front-ends. IC Role / Device Role / Timing Role: Precision gain block and level-shifting interface between high-impedance probes and ADCs. Use Value: 134 dB open-loop gain ensures <0.001% gain error at 100×; 760 µA quiescent current extends battery life in Class II handheld tools. |
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 | Zero-drift architecture (0.02 µV/°C drift), lower 0.1–10 Hz noise (0.5 µVPP), but 350 kHz GBW and higher 17 µA IQ | Better for µV-level DC stability over temperature; unsuitable for >100 kHz active filters or fast-settling ADC drivers | Select OPA2333AIDGKR only when drift dominates error budget and bandwidth <350 kHz suffices |
| MCP6V82-E/SN | Similar 5.5 MHz GBW and 760 µA IQ, but 25 µV max offset (no e-trim), 12 nV/√Hz noise, and –40°C to +125°C rating | Adequate for cost-sensitive industrial sensors where 7.5 nV/√Hz noise is non-critical and manual calibration is acceptable | Choose MCP6V82-E/SN when absolute lowest noise and factory-trimmed offset are not required |
Compared with OPA2376AIDGKT, OPA2333AIDGKR trades bandwidth and power for ultra-low drift, while MCP6V82-E/SN offers comparable speed at higher noise and untrimmed offset - making OPA2376AIDGKT optimal for balanced precision, noise, and speed in portable high-resolution systems.
Availability
OPA2376AIDGKT is available at Aetrix Electronics and suitable for medical instrumentation, handheld test equipment, and precision ADC buffering requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA2376AIDGKT 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 designing analog ICs, embedded processors, and connectivity solutions for industrial, automotive, and consumer markets.
The OPA2376AIDGKT belongs to TI's e-trim™ precision op-amp product line, engineered specifically for high-accuracy, low-power signal conditioning in battery-operated and thermally demanding applications.
FAQ
What is the maximum capacitive load the OPA2376AIDGKT can drive stably in unity-gain configuration?
The OPA2376AIDGKT can drive up to 250 pF of pure capacitive load stably in unity-gain configuration without external compensation. This capability is verified in TI's SBOS406G datasheet Figure 16. For loads exceeding 250 pF, a small series resistor (10–20 Ω) between the output and capacitive load restores phase margin while preserving dc accuracy. The OPA2376AIDGKT's internal compensation ensures robust stability across its specified operating conditions without requiring user-adjusted compensation networks.
Does the OPA2376AIDGKT support true rail-to-rail input common-mode voltage range?
Yes, the OPA2376AIDGKT supports rail-to-rail input with common-mode voltage range extending from (V–) – 0.1 V to (V+) – 1.3 V. Within this range, specifications including offset voltage, CMRR, and open-loop gain are guaranteed. The input stage remains functional up to (V+) + 0.1 V, but parameters degrade beyond (V+) – 1.3 V. This extended range enables direct interfacing with sensors and DACs operating near supply rails - a key advantage confirmed in Section 6.7 of the SBOS406G datasheet for OPA2376AIDGKT.
What is the guaranteed operating temperature range for the OPA2376AIDGKT?
The OPA2376AIDGKT is fully specified and guaranteed to operate from –40°C to +125°C. This extended industrial temperature range is explicitly stated in the "Recommended Operating Conditions" table (Section 6.3) and "Device Information" section of the SBOS406G datasheet. All electrical characteristics - including offset voltage, noise, gain-bandwidth, and output swing - are validated across this full range, making OPA2376AIDGKT suitable for under-hood automotive, industrial motor control, and outdoor instrumentation applications.
How does the e-trim™ technology in the OPA2376AIDGKT improve system-level accuracy?
The e-trim™ technology in the OPA2376AIDGKT performs factory calibration of input offset voltage and drift during final test, reducing typical offset to 5 µV and maximum to 25 µV - far tighter than standard CMOS op-amps. It also limits offset drift to 0.32 µV/°C max over –40°C to +125°C. This eliminates the need for system-level nulling circuits or frequent recalibration, directly improving long-term measurement repeatability in portable medical devices and precision data loggers where OPA2376AIDGKT is deployed.
Is the OPA2376AIDGKT pin-compatible with other members of the OPAx376 family?
No, the OPA2376AIDGKT (dual, VSSOP-8) is not pin-compatible with the single-channel OPA376 or quad-channel OPA4376. While all share identical pin functions per channel, package footprints differ: OPA376 uses 5-pin SOT-23/SC70/SOIC-8, OPA2376 uses 8-pin SOIC/VSSOP/DSBGA, and OPA4376 uses 14-pin TSSOP. The VSSOP-8 pinout of OPA2376AIDGKT matches only other dual op-amps in DGK packaging (e.g., OPA2377, OPA2387), not other OPAx376 variants. Pin mapping is defined in Section 5 of SBOS406G.
OPA2376AIDGKT 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:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Single Ended, Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 5 µV
- Current - Supply:
- 760µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.2 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
OPA2376AIDGKT FAQ
1.How can I place an order for OPA2376AIDGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2376AIDGKT 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 OPA2376AIDGKT reliable?
The price and inventory of OPA2376AIDGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2376AIDGKT is usually 5 days.
3.What payment methods are accepted for OPA2376AIDGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2376AIDGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2376AIDGKT?
OPA2376AIDGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2376AIDGKT 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 OPA2376AIDGKT?
For technical support, including OPA2376AIDGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2376AIDGKT requirements.
6.How does Aetrix verify that OPA2376AIDGKT is sourced from the original manufacturer or authorized distributors?
All OPA2376AIDGKT 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 OPA2376AIDGKT meets industry standards.
7.What is the process for return or replacement of OPA2376AIDGKT?
All OPA2376AIDGKT units undergo pre-shipment inspection (PSI). If there is an issue with OPA2376AIDGKT, 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 OPA2376AIDGKT part is unused and in its original packaging.
Return procedure for OPA2376AIDGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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