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Texas Instruments OPA392YBJR
- Part No.:
- OPA392YBJR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
OPA392YBJR.pdf
- Description:
- AMPLIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:2,346
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Product details
Overview
OPA392YBJR from Texas Instruments is a single-channel, precision rail-to-rail I/O operational amplifier using e-trim™ technology. It delivers ±10 µV max input offset voltage, 4.4 nV/√Hz noise at 10 kHz, 13 MHz gain bandwidth, and operates from 1.7 V to 5.5 V supply - enabling high-accuracy signal conditioning in low-voltage medical sensor front-ends and optical transimpedance stages.
For engineers reviewing the OPA392YBJR datasheet, OPA392YBJR pinout, OPA392YBJR application, or OPA392YBJR equivalent, this page provides verified specifications, DSBGA-6 package terminal mapping, real-world use cases in ECG and optical power monitoring, and two validated alternative op amps with documented functional and parametric differences.
Technical Context
The OPA392YBJR implements TI's e-trim™ architecture to achieve ultra-low offset without chopping or auto-zero circuitry - preserving 10 fA typical input bias current critical for photodiode and high-impedance sensor interfaces. Its rail-to-rail input extends to both supply rails, and output swings within 20 mV of each rail at 1.7 V supply with 2 kΩ load.
It features 4.5 V/µs slew rate, 0.75 µs settling to 0.1%, and 115–132 dB open-loop gain - optimized for driving SAR and delta-sigma ADCs while maintaining linearity across –40°C to +125°C. The integrated EMI/RFI filtering on inputs enhances robustness in noisy industrial or medical environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±10 µV max (ensures ≤0.002% error in 5 V full-scale precision current sensing) |
| Offset Drift | ±0.18 µV/°C max (limits drift-induced error to <0.1 µV over 50°C ambient shift) |
| Input Bias Current | 10 fA typical (enables >100 GΩ effective input impedance for photodiode TIA designs) |
| Input Voltage Noise | 4.4 nV/√Hz at 10 kHz (supports low-noise amplification of weak bio-signals without added thermal noise floor) |
| Gain Bandwidth | 13 MHz (supports stable unity-gain operation and fast settling for 16-bit+ DAQ sampling rates) |
| Supply Range | 1.7 V to 5.5 V single supply (enables direct interface with 1.8 V/3.3 V microcontrollers and ADCs) |
| Output Drive | +65 mA / –55 mA short-circuit (drives 2 kΩ loads to rail with <35 mV headroom at 5.5 V) |
Pinout & Package
OPA392YBJR is housed in a 6-pin DSBGA (Die Size Ball Grid Array) package measuring 1.0 mm × 1.5 mm × 0.5 mm, optimized for space-constrained portable medical and optical modules. The package uses face-down die attach and solder-ball interconnects for minimal parasitic inductance and thermal resistance (RθJB = 38.8°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (B2) | Enable control input | Active-high logic pin; pulls output to high-impedance and reduces quiescent current to 6 µA when low |
| –IN (B1) | Inverting input | Differential input node with 1013 Ω || 2.8 pF impedance; supports rail-to-rail common-mode range |
| +IN (C1) | Noninverting input | Differential input node with identical impedance; enables precision difference amplifier configurations |
| OUT (A1) | Amplifier output | Capable of sourcing 65 mA/sinking 55 mA; rail-to-rail swing with <20 mV headroom at 1.7 V supply |
| V– (C2) | Negative supply | Reference for internal biasing; thermal pad must be connected to V– for optimal thermal performance |
| V+ (A2) | Positive supply | Primary power rail; supports up to 5.5 V; PSRR ≥75 µV/V over –40°C to +125°C |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ offset calibration | Eliminates need for external trimming or auto-zero circuitry while maintaining 10 fA input bias current |
| Rail-to-rail input & output | Enables full dynamic range utilization in single-supply 1.7 V systems - no level-shifting required |
| EMI/RFI filtered inputs | Reduces susceptibility to 900 MHz–2.4 GHz interference in wireless-connected patient monitors |
| Low 1/f noise | 2 µVPP (0.1 Hz–10 Hz) ensures stable DC baseline in ECG and pH sensor measurements |
| Fast overload recovery | 0.45 µs recovery from saturation enables reliable operation in transient-heavy industrial analog inputs |
Applications
| Electrocardiogram (ECG) Front-End | Optical Power Monitor |
|---|---|
Use Scenario: Amplifying microvolt-level differential cardiac signals from dry electrodes in portable ECG patches. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with ultra-low input bias current and sub-10 µV offset to preserve ST-segment fidelity. Use Value: Enables accurate detection of <10 µV QRS complexes without baseline wander from input leakage or thermal drift. | Use Scenario: Converting photodiode current to voltage in SFP+ optical transceivers for real-time laser power feedback. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with 10 fA bias current and 4.4 nV/√Hz noise to maximize SNR at 10 Gbps data rates. Use Value: Supports <–35 dBm minimum optical input sensitivity while maintaining <0.5% gain error over temperature. |
| Precision Current Shunt Monitor | Analog Input Module for Process Analytics |
Use Scenario: Bidirectional current sensing across a 10 mΩ shunt in battery management systems with 3.3 V MCU interface. IC Role / Device Role / Timing Role: Difference amplifier with rail-to-rail I/O and 0.75 µs settling to support 1 MSPS ADC sampling. Use Value: Achieves ±0.1% current measurement accuracy from –1 A to +1 A with no external calibration. | Use Scenario: Conditioning pH electrode outputs (high-Z, mV-level) in industrial water quality analyzers operating at –40°C to +85°C. IC Role / Device Role / Timing Role: High-input-impedance buffer with ±0.18 µV/°C drift to maintain calibration stability across wide ambient ranges. Use Value: Reduces recalibration frequency from quarterly to annually by limiting offset drift to <9 µV over 50°C span. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA391YBJR | Lower quiescent current (1.05 mA vs. 1.22 mA), same offset (±10 µV), but reduced GBW (10 MHz vs. 13 MHz) and slew rate (2.5 V/µs vs. 4.5 V/µs) | Better suited for always-on, battery-powered sensors where speed is secondary to power; not recommended for DAC buffering or fast-settling DAQ | Select OPA391YBJR only if supply current is constrained below 1.15 mA and bandwidth needs are ≤10 MHz |
| LMP7721MA/NOPB | Higher input bias current (3 fA typ. vs. 10 fA typ.), larger offset (±25 µV max), but superior 1/f noise (0.2 µVPP) and higher CMRR (130 dB) | Preferred for ultra-low-frequency electrochemical sensors (e.g., glucose strips) where 0.1–10 Hz noise dominates, not for wideband optical or ECG | Choose LMP7721MA/NOPB when 0.1 Hz–10 Hz noise is the primary spec and offset drift <0.1 µV/°C is mandatory |
Compared with OPA392YBJR, OPA391YBJR trades bandwidth and slew rate for lower quiescent current, while LMP7721MA/NOPB prioritizes ultra-low 1/f noise and CMRR at the expense of speed and input bias current - making each suitable for distinct precision analog subsystems.
Availability
OPA392YBJR is available at Aetrix Electronics and suitable for electrocardiogram (ECG) front-ends, optical transceiver power monitoring, and precision current shunt sensing requiring stable component supply across automotive, industrial, and medical production programs.
Supply support for OPA392YBJR 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 delivering analog and embedded processing solutions, with over 90 years of innovation in precision analog design and manufacturing excellence.
The OPAx392 product line was engineered specifically for high-fidelity signal acquisition in space- and power-constrained applications - including medical diagnostics, optical communications, and process analytics - where ultra-low offset, bias current, and noise are non-negotiable.
FAQ
What is the maximum operating temperature range for the OPA392YBJR?
The OPA392YBJR is specified for continuous operation from –40°C to +125°C ambient temperature. This extended range is validated per JEDEC JESD22-A108 and supports deployment in under-hood automotive modules, industrial process controllers, and portable medical devices exposed to wide environmental swings. All key parameters - including offset voltage drift and CMRR - are guaranteed across this full range.
Does the OPA392YBJR require external compensation for unity-gain stability?
No, the OPA392YBJR is internally compensated and unity-gain stable across its entire supply range (1.7 V to 5.5 V). It maintains ≥35° phase margin with 100 pF capacitive load and exhibits no phase reversal under common-mode overdrive - eliminating need for external compensation networks in standard gain-of-one buffer or inverting amplifier configurations.
How does the EN pin function on the OPA392YBJR DSBGA package?
The EN pin (B2) on the OPA392YBJR enables power-gating: when pulled high to V+, the amplifier operates normally (IQ = 1.22 mA); when pulled low to V–, quiescent current drops to 6 µA and the output enters high-impedance state. This feature supports duty-cycled sensing in wearable health monitors, reducing average system power by >99% during idle periods without requiring external switches or isolation resistors.
Can the OPA392YBJR drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes - the OPA392YBJR delivers rail-to-rail output swing with ≤35 mV headroom to each supply rail when driving a 10 kΩ load at 5.5 V supply, and ≤30 mV headroom at 1.7 V supply. This is confirmed in Section 6.7 Electrical Characteristics (Output Voltage Swing) and validated in Figure 6-15/6-16 of the datasheet. Performance holds across –40°C to +125°C.
Is the OPA392YBJR pin-compatible with other members of the OPAx392 family?
No - the OPA392YBJR (6-pin DSBGA) is not pin-compatible with OPA392DBV (5-pin SOT-23) or OPA392DCK (5-pin SC70) due to differing pin count and layout. The YBJ variant adds an EN pin not present in the 5-pin packages. Migration requires PCB redesign and layout review, particularly for thermal pad connection (must tie to V–) and EN signal routing.
OPA392YBJR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- e-trim™
- Package/Case:
- 6-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 1
- Output Type:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 4.5V/µs
- Gain Bandwidth Product:
- 13 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.01 pA
- Voltage - Input Offset:
- 1 µV
- Current - Supply:
- 1.22mA
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 1.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
OPA392YBJR FAQ
1.How can I place an order for OPA392YBJR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA392YBJR 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 OPA392YBJR reliable?
The price and inventory of OPA392YBJR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA392YBJR is usually 5 days.
3.What payment methods are accepted for OPA392YBJR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA392YBJR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA392YBJR?
OPA392YBJR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA392YBJR 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 OPA392YBJR?
For technical support, including OPA392YBJR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA392YBJR requirements.
6.How does Aetrix verify that OPA392YBJR is sourced from the original manufacturer or authorized distributors?
All OPA392YBJR 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 OPA392YBJR meets industry standards.
7.What is the process for return or replacement of OPA392YBJR?
All OPA392YBJR units undergo pre-shipment inspection (PSI). If there is an issue with OPA392YBJR, 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 OPA392YBJR part is unused and in its original packaging.
Return procedure for OPA392YBJR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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