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Texas Instruments OPA2392YBJT
- Part No.:
- OPA2392YBJT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 9-XFBGA, DSBGA
- Datasheet:
-
OPA2392YBJT.pdf
- Description:
- AMPLIFIER
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
OPA2392YBJT from Texas Instruments is a dual-channel, precision rail-to-rail input/output 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 OPA2392YBJT datasheet, OPA2392YBJT pinout, OPA2392YBJT application, or OPA2392YBJT equivalent, this page provides verified specifications, DSBGA-9 pin mapping, real-world use cases in ECG and optical power monitoring, and two validated alternative parts with documented functional and packaging differences.
Technical Context
The OPA2392YBJT implements TI's e-trim™ architecture - eliminating chopper or auto-zero circuitry - to achieve ultra-low input bias current (10 fA typical) while maintaining sub-0.18 µV/°C drift and no phase reversal. Its rail-to-rail input stage supports common-mode voltages from V– to V+, and its Class AB output stage delivers ±65 mA sourcing/sinking capability with 0.75 µs settling to 0.1%.
This dual op-amp is unity-gain stable, features EMI/RFI-filtered inputs, and is characterized across –40°C to +125°C. The YBJ package variant includes an enable (EN) pin per channel pair, allowing independent power gating without PCB layout changes - critical for battery-powered instrumentation requiring dynamic power management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±10 µV max (TA = 25°C, VS = 5.0 V); ensures <0.02% gain error in 16-bit DAQ systems with 1 V full-scale input |
| Offset Drift | ±0.18 µV/°C max (TA = –40°C to +125°C); contributes <22.5 µV total drift over industrial temp range - negligible vs. 1 LSB of 20-bit ADC |
| Input Bias Current | 10 fA typical; enables pA-level photodiode current measurement with <1 mV error in 1 GΩ transimpedance gain |
| Gain-Bandwidth Product | 13 MHz; supports stable closed-loop gain ≥10 up to 1.3 MHz - sufficient for anti-aliasing filters preceding 2 MSPS SAR ADCs |
| Supply Voltage Range | 1.7 V to 5.5 V single supply; allows direct interface with 1.8 V/3.3 V microcontrollers and Li-ion battery systems without level-shifting |
| Quiescent Current | 1.22 mA per amplifier; enables dual-channel precision amplification in space-constrained portable devices with <2.5 mW total dissipation at 3.3 V |
| Settling Time | 0.75 µs to 0.1% (2-V step); meets timing budget for multiplexed 1 MSPS data acquisition with ≤0.75 µs channel switching overhead |
Pinout & Package
OPA2392YBJT uses a 9-pin DSBGA (YBJ) package with 0.4 mm pitch, 1.37 mm × 1.37 mm footprint, and exposed thermal pad connected to V–. Pin 1 is OUT A; pin 9 is V+; EN (pin B2) controls both amplifiers simultaneously.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (A1) | Output, Channel A | Class AB rail-to-rail output capable of sourcing +65 mA / sinking –55 mA into 2 kΩ load |
| OUT B (A3) | Output, Channel B | Independent output with identical drive strength and settling behavior as OUT A |
| +IN A (C1) | Noninverting Input, Channel A | Rail-to-rail CMVR input; supports V– to V+ common-mode range without phase reversal |
| –IN A (B1) | Inverting Input, Channel A | 10 fA bias current enables high-Z sensor interfacing; EMI-filtered per datasheet Figure 6-40 |
| +IN B (C3) | Noninverting Input, Channel B | Electrically isolated from Channel A inputs; supports independent differential sensing paths |
| –IN B (B3) | Inverting Input, Channel B | Matched offset and drift to –IN A; usable in matched-pair configurations like instrumentation amps |
| V– (C2) | Negative Power Supply | Reference node for thermal pad connection; must be low-impedance ground plane for thermal performance |
| V+ (A2) | Positive Power Supply | Accepts 1.7–5.5 V; PSRR >113 dB ensures immunity to digital supply noise in mixed-signal PCBs |
| EN (B2) | Enable Control | Active-high logic; reduces IQ to 6 µA per amp when pulled low - enables sleep-mode power gating |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ offset calibration | Eliminates chopper artifacts and 1/f noise spikes - preserves signal integrity in DC-coupled biosensor amplifiers |
| Rail-to-rail input and output | Enables full dynamic range utilization in 1.8 V or 3.3 V single-supply systems without level-shifting circuitry |
| EMI/RFI filtered inputs | EMIRR >70 dB at 900 MHz (Figure 6-40) - prevents RF rectification errors in wireless-adjacent medical equipment |
| Ultra-low 1/f noise | 2 µVPP (0.1 Hz–10 Hz) - essential for slow-drift measurements in pH and gas concentration analyzers |
| Fast overload recovery | 0.45 µs recovery time after saturation - maintains timing accuracy in fast transient detection circuits like pulse oximetry |
Applications
| ECG Front-End Amplifier | Optical Power Monitor |
|---|---|
|
Use Scenario: Amplifying microvolt-level cardiac signals from dry electrodes in portable ECG monitors with 1.8 V MCU supply. IC Role / Device Role / Timing Role: Dual-channel precision instrumentation amplifier core - one channel for lead-I differential gain, second for right-leg drive reference buffering. Use Value: ±10 µV offset and 0.18 µV/°C drift ensure baseline stability over body temperature shifts; 10 fA bias prevents electrode polarization errors. |
Use Scenario: Converting photodiode current to voltage in SFP+ optical transceivers with 3.3 V supply and tight thermal envelope. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) for primary signal path + reference buffer for DAC-controlled bias compensation. Use Value: 4.4 nV/√Hz noise and 13 MHz GBW support 10 Gbps NRZ signal fidelity; DSBGA-9 package fits within 2.5 mm × 2.5 mm optical module footprint. |
| Precision Current Shunt Monitor | Gas Concentration Analyzer |
|
Use Scenario: Bidirectional current sensing in 12 V automotive body control modules with ±100 A range and 3.3 V ADC interface. IC Role / Device Role / Timing Role: Difference amplifier for shunt voltage amplification + reference generator for zero-current offset calibration. Use Value: Rail-to-rail I/O allows full 0–3.3 V output swing from ±100 mV shunt drop; 0.75 µs settling enables 1 MSPS sampling with minimal inter-channel skew. |
Use Scenario: Signal conditioning for electrochemical gas sensors (CO, NO₂) operating at sub-µA currents in handheld air quality meters. IC Role / Device Role / Timing Role: Ultra-low-bias transimpedance stage followed by programmable gain stage for multi-range detection. Use Value: 10 fA input bias avoids sensor loading-induced drift; 2 µVPP 0.1–10 Hz noise enables sub-ppm resolution in 1-second integration windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2189IDR | Lower offset (±1 µV typ), higher quiescent current (1.35 mA), SOIC-8 only - no DSBGA option | Preferred where absolute DC accuracy dominates over board area or thermal constraints | Select OPA2189IDR if offset drift <0.03 µV/°C is required and DSBGA packaging is unnecessary |
| LTC2057HMS8#PBF | Zero-drift architecture, higher noise (11 nV/√Hz), 5 V min supply, MSOP-8 only - no enable pin | Suitable for high-precision DC servo loops but not for low-voltage or fast-settling applications | Choose LTC2057HMS8#PBF only for ultra-stable DC offsets in 5 V systems where speed and supply flexibility are secondary |
Compared with OPA2189IDR and LTC2057HMS8#PBF, the OPA2392YBJT uniquely balances ultra-low offset, sub-1 µV/°C drift, 1.7 V operation, DSBGA-9 footprint, and integrated enable functionality - making it optimal for miniaturized, battery-powered, wide-temperature instrumentation where all four attributes are concurrently required.
Availability
OPA2392YBJT is available at Aetrix Electronics and suitable for ECG front-ends, optical transceiver monitoring, and gas analyzer signal chains requiring stable component supply, long-term lifecycle support, and traceable sourcing for medical and industrial certifications.
Supply support for OPA2392YBJT 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 specializing in analog and embedded processing technologies, with over 50 years of innovation in precision amplifiers and signal chain solutions.
The OPAx392 product line was designed specifically for high-fidelity, low-power sensor signal conditioning in medical diagnostics, optical communications, and environmental monitoring - emphasizing e-trim™ DC precision without sacrificing AC performance or supply flexibility.
FAQ
What is the maximum operating temperature for OPA2392YBJT?
The OPA2392YBJT is fully specified from –40°C to +125°C ambient temperature. Its e-trim™ architecture maintains ±100 µV max offset across this range, and thermal resistance (RθJA = 110.7°C/W) ensures safe operation at full load in sealed enclosures up to +105°C board temperature - validated per TI SBOS926I Rev. MARCH 2025.
Does OPA2392YBJT support rail-to-rail input with 1.7 V supply?
Yes, OPA2392YBJT supports true rail-to-rail input common-mode range (V– to V+) at 1.7 V supply. Per Section 6.7 of the datasheet, CMRR remains >66 dB across the full supply range, and input stage operation is guaranteed down to 1.7 V - enabling direct interface with 1.8 V logic without level shifters.
How does the EN pin function on OPA2392YBJT?
The EN pin (B2) on OPA2392YBJT enables or disables both amplifiers simultaneously. When pulled high (≥V+ – 0.5 V), both channels operate normally (IQ = 1.22 mA per amp). When pulled low (≤V– + 0.5 V), quiescent current drops to 6 µA per amplifier and outputs enter high-impedance state - confirmed in Section 6.7 shutdown specs.
Can OPA2392YBJT drive a 10 kΩ load rail-to-rail at 3.3 V?
Yes, OPA2392YBJT drives 10 kΩ loads rail-to-rail at 3.3 V: output swing is specified to within 20 mV of each rail (V– + 20 mV to V+ – 20 mV) under 10 kΩ load per Section 6.7. This meets 12-bit+ accuracy requirements for 3.3 V ADC interfaces without external pull-up/pull-down networks.
Is OPA2392YBJT suitable for photodiode transimpedance applications?
Yes, OPA2392YBJT is optimized for photodiode TIA use: 10 fA typical input bias current minimizes dark-current error, 4.4 nV/√Hz noise preserves SNR, and e-trim™ eliminates chopper-induced ripple - all confirmed in Sections 1, 3, and 7.3.2 of the official TI datasheet SBOS926I.
OPA2392YBJT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 9-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 2
- 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:
- 2 µV
- Current - Supply:
- 1.22mA (x2 Channels)
- 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:
- 9-DSBGA (1.16x1.16)
OPA2392YBJT FAQ
1.How can I place an order for OPA2392YBJT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2392YBJT 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 OPA2392YBJT reliable?
The price and inventory of OPA2392YBJT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2392YBJT is usually 5 days.
3.What payment methods are accepted for OPA2392YBJT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2392YBJT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2392YBJT?
OPA2392YBJT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2392YBJT 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 OPA2392YBJT?
For technical support, including OPA2392YBJT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2392YBJT requirements.
6.How does Aetrix verify that OPA2392YBJT is sourced from the original manufacturer or authorized distributors?
All OPA2392YBJT 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 OPA2392YBJT meets industry standards.
7.What is the process for return or replacement of OPA2392YBJT?
All OPA2392YBJT units undergo pre-shipment inspection (PSI). If there is an issue with OPA2392YBJT, 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 OPA2392YBJT part is unused and in its original packaging.
Return procedure for OPA2392YBJT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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