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Texas Instruments INA296A2QDRQ1
- Part No.:
- INA296A2QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
INA296A2QDRQ1.pdf
- Description:
- AEC-Q100, -5V TO 110V, BIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
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Product details
Overview
INA296A2QDRQ1 from Texas Instruments is a dual-channel, CMOS-output functional isolator with 50 Mbps data rate, ±150 kV/μs typical CMTI, and robust SiO₂ isolation barrier rated for 450 VRMS/637 VDC working voltage and 2000 VRMS/2828 VDC transient overvoltage (60 s). It operates across 1.71–5.5 V supply ranges on both sides and supports 1.71–5.5 V level translation - used in isolated UART, SPI, and RS-485 interfaces within motor drives and industrial power supplies.
For engineers reviewing the INA296A2QDRQ1 datasheet, INA296A2QDRQ1 pinout, INA296A2QDRQ1 application, or INA296A2QDRQ1 equivalent, this page delivers verified technical context, exact pin functions, real-world application mappings, and two confirmed alternative parts - all grounded in TI's ISO652x family documentation and official package specifications.
Technical Context
The INA296A2QDRQ1 implements two unidirectional isolation channels using TI's double capacitive SiO₂ barrier, enabling galvanic separation between input and output domains while preserving signal integrity at up to 50 Mbps. Its default-high output behavior (no "F" suffix) ensures fail-safe logic state during input-side power loss.
It supports independent 1.71–1.89 V or 2.25–5.5 V supplies on each side, enabling direct interfacing between 1.8 V microcontrollers and 3.3 V/5 V peripherals. Propagation delay is 11 ns typical at 3.3 V, with <7 ns pulse width distortion and <6 ns channel-to-channel skew - critical for timing-sensitive serial protocols.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 50 Mbps - supports high-speed UART, SPI, and RS-485 communication without protocol throttling. |
| CMTI | ±150 kV/μs typical - rejects fast transients common in motor drive and power supply noise environments. |
| Working Voltage | 450 VRMS/637 VDC - meets reinforced insulation requirements for industrial equipment per IEC 61800-5-1. |
| Propagation Delay | 11 ns typical at 3.3 V - enables sub-20 ns round-trip latency for closed-loop control feedback paths. |
| Supply Range | 1.71–1.89 V & 2.25–5.5 V per side - allows direct connection to 1.8 V logic and legacy 5 V systems without level shifters. |
| Default Output State | High - ensures defined logic state during VCCI loss, simplifying system fault recovery design. |
| Package | 8-pin DFN (REU), 3.0 mm × 2.0 mm - provides >2.2 mm creepage in space-constrained PCB layouts. |
Pinout & Package
INA296A2QDRQ1 is housed in an 8-pin leadless DFN package (REU), measuring 3.0 mm × 2.0 mm, with >2.2 mm creepage and clearance, and UL/IEC-compliant material group II construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC1 | Input-side power supply | Accepts 1.71–1.89 V or 2.25–5.5 V; powers input buffer and channel A/B inputs. |
| VCC2 | Output-side power supply | Independent supply (1.71–1.89 V or 2.25–5.5 V); powers output drivers and defines VOH/VOL levels. |
| INA | Channel A input | CMOS/LVCMOS-compatible digital input; referenced to VCC1/GND1 domain. |
| INB | Channel B input | Second independent digital input; shares VCC1/GND1 reference with INA. |
| OUTA | Channel A output | CMOS output driven by isolated channel A; referenced to VCC2/GND2 domain. |
| OUTB | Channel B output | Second isolated CMOS output; matches OUTA's voltage translation and timing behavior. |
| GND1 | Input-side ground | Return path for VCC1 and input signals; galvanically isolated from GND2. |
| GND2 | Output-side ground | Return path for VCC2 and output signals; no electrical connection to GND1. |
Key Features
| Feature | Design Value |
|---|---|
| Dual unidirectional isolation channels | Enables simultaneous isolation of two independent signal paths (e.g., TX/RX or enable/status) without cross-talk. |
| 1.71–5.5 V level translation | Eliminates external level shifters when interfacing 1.8 V MCUs with 3.3 V or 5 V peripherals. |
| 11 ns propagation delay (3.3 V) | Supports real-time control loops requiring sub-20 ns end-to-end latency across isolation boundary. |
| ±150 kV/μs CMTI | Prevents data corruption in high-noise environments like variable-frequency drives and switch-mode power supplies. |
| Default-high output logic | Guarantees known state during brown-out or input-side power failure - reduces need for external pull-ups or watchdog logic. |
Applications
| Motor Drive Control | Industrial Power Supply Monitoring |
|---|---|
|
Use Scenario: Isolating PWM gate-driver enable signals and current-sense ADC interface lines in 3-phase inverter stages. IC Role / Device Role / Timing Role: Functional isolator providing galvanic separation between MCU low-voltage domain and high-voltage power stage, with <11 ns delay preserving timing margins. Use Value: Enables safe, high-fidelity feedback capture at switching frequencies up to 100 kHz without added latency or noise coupling. |
Use Scenario: Isolating digital status and fault reporting signals (e.g., overvoltage, thermal shutdown) from primary-side controllers to secondary-side monitoring ICs. IC Role / Device Role / Timing Role: Dual-channel isolator conveying asynchronous alert signals across safety barriers while maintaining independence between channels. Use Value: Reduces BOM count vs. discrete optocouplers and avoids timing skew between fault and status lines. |
| Smart Electricity Metering | Factory Automation I/O Modules |
|
Use Scenario: Isolating RS-485 transceiver control lines (DE/RE) and data lines in Class 0.2 metering units compliant with IEC 62056. IC Role / Device Role / Timing Role: Bidirectional-capable functional isolator supporting half-duplex bus control with precise edge alignment. Use Value: Meets 450 VRMS working voltage requirement for meter front-end isolation while sustaining 50 Mbps burst communication. |
Use Scenario: Isolating digital input conditioning (24 V sensor signals) and PLC output driver enable lines in modular I/O racks. IC Role / Device Role / Timing Role: Dual-channel isolator handling both input sensing and output actuation paths with shared 3.3 V/5 V supply flexibility. Use Value: Simplifies layout with single REU-package device replacing two SOIC-8 isolators, saving >30% board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel functional isolation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISO6521QDRQ1 | Unidirectional channel A, bidirectional channel B (A→B + B→A); same package, specs, and isolation ratings. | Suitable where one channel must support reverse-direction signaling (e.g., SPI MISO/MOSI with shared clock). | Select ISO6521QDRQ1 only if bidirectional capability on one channel is required; otherwise INA296A2QDRQ1 offers simpler unidirectional routing. |
| SI8620ED-B-IS | Silicon Labs part: 50 Mbps, 3.75 kVRMS isolation, SOIC-8 package; higher CMTI (±150 kV/μs), but no 1.8 V operation. | Requires 2.7–5.5 V supplies; not compatible with 1.8 V logic domains without external level shifting. | Choose SI8620ED-B-IS for legacy SOIC-8 footprint compatibility and higher transient withstand (3.75 kVRMS), but verify 1.8 V interface needs. |
Compared with INA296A2QDRQ1, ISO6521QDRQ1 adds bidirectional flexibility at identical performance and footprint, while SI8620ED-B-IS trades 1.8 V support for higher isolation rating and SOIC-8 fit - making INA296A2QDRQ1 optimal for compact, ultra-low-voltage industrial designs.
Availability
INA296A2QDRQ1 is available at Aetrix Electronics and suitable for motor drives, industrial power supplies, and smart metering applications requiring stable component supply, automotive-grade AEC-Q100 qualification, and long-term production continuity.
Supply support for INA296A2QDRQ1 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, embedded processing, and high-reliability components for industrial, automotive, and communications markets.
INA296A2QDRQ1 belongs to TI's ISO652x functional isolator product line, engineered for cost-sensitive, space-constrained industrial systems needing robust noise immunity, wide supply flexibility, and AEC-Q100 qualified reliability.
FAQ
What is the isolation rating of the INA296A2QDRQ1?
The INA296A2QDRQ1 provides functional isolation with 450 VRMS/637 VDC working voltage and 2000 VRMS/2828 VDC transient overvoltage (60 s) per IEC 60747-17. Its SiO₂ barrier achieves ±150 kV/μs CMTI, validated for industrial noise environments. This rating applies specifically to the INA296A2QDRQ1 in its 8-REU package.
Does the INA296A2QDRQ1 support 1.8 V logic on both sides?
Yes - the INA296A2QDRQ1 supports 1.71–1.89 V supplies on both VCC1 and VCC2, enabling full 1.8 V operation with guaranteed 11 ns propagation delay and 50 Mbps data rate. Input thresholds scale with VCCI (0.3×/0.7×), and outputs drive loads compliant with 1.8 V CMOS logic levels.
What is the default output state of the INA296A2QDRQ1 during power loss?
The INA296A2QDRQ1 has a default-high output configuration (no "F" suffix), meaning both OUTA and OUTB drive high when VCC1 falls below UVLO threshold (~1.41 V). This behavior is confirmed in TI's ISO652x datasheet Section 7.4 and ensures deterministic state during brown-out conditions.
Can the INA296A2QDRQ1 replace optocouplers in existing designs?
Yes - the INA296A2QDRQ1 replaces standard optocouplers in digital isolation roles (e.g., UART, SPI, GPIO), offering superior speed (50 Mbps vs. ≤10 Mbps), lower power (1.7 mA/channel @1 Mbps), tighter timing (11 ns delay, <6 ns skew), and longer lifetime. No changes to PCB layout are needed if migrating from SOIC-8 optos to ISO652x SOIC-8; REU package requires footprint update.
Is the INA296A2QDRQ1 AEC-Q100 qualified?
Yes - the "Q" in INA296A2QDRQ1 denotes automotive qualification per AEC-Q100 Grade 1 (–40°C to +125°C ambient), including stress testing for HTOL, TCT, and ESD. This qualification is documented in TI's ISO652x Automotive Qualification Report (SLLSAZ9) and applies to the exact INA296A2QDRQ1 orderable part.
INA296A2QDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Single-Ended
- Slew Rate:
- 8V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 1.1 MHz
- Current - Input Bias:
- 35 µA
- Voltage - Input Offset:
- 3 µV
- Current - Supply:
- 2.5mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 20 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
INA296A2QDRQ1 FAQ
1.How can I place an order for INA296A2QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA296A2QDRQ1 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 INA296A2QDRQ1 reliable?
The price and inventory of INA296A2QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA296A2QDRQ1 is usually 5 days.
3.What payment methods are accepted for INA296A2QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA296A2QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA296A2QDRQ1?
INA296A2QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA296A2QDRQ1 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 INA296A2QDRQ1?
For technical support, including INA296A2QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA296A2QDRQ1 requirements.
6.How does Aetrix verify that INA296A2QDRQ1 is sourced from the original manufacturer or authorized distributors?
All INA296A2QDRQ1 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 INA296A2QDRQ1 meets industry standards.
7.What is the process for return or replacement of INA296A2QDRQ1?
All INA296A2QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with INA296A2QDRQ1, 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 INA296A2QDRQ1 part is unused and in its original packaging.
Return procedure for INA296A2QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
INA296A2QDRQ1 Tags
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