My Inquiry
My Account
Texas Instruments INA296A5QDRQ1
- Part No.:
- INA296A5QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
INA296A5QDRQ1.pdf
- Description:
- AEC-Q100, -5V TO 110V, BIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:2,491
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
INA296A5QDRQ1 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 supporting 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 delivers 11 ns typical propagation delay at 3.3 V - used in isolated UART, SPI, and RS-485 interfaces for motor drives and industrial power supplies.
For engineers reviewing the INA296A5QDRQ1 datasheet, INA296A5QDRQ1 pinout, INA296A5QDRQ1 application, or INA296A5QDRQ1 equivalent, key selection criteria include bidirectional channel configuration, 1.8 V–5.5 V level translation capability, default-high output behavior, functional isolation rating, and DFN (8-REU) package compatibility with >2.2 mm creepage.
Technical Context
The INA296A5QDRQ1 implements TI's double capacitive SiO₂ insulation barrier to isolate two independent CMOS/LVCMOS digital I/O channels. Its input and output buffers are fully decoupled, enabling asymmetric supply operation (e.g., 1.8 V on side 1, 3.3 V on side 2) with precise 0.7×VCCT/0.3×VCCT input thresholds and 10 µA max input leakage.
It features integrated UVLO with 1.53 V (rising) / 1.41 V (falling) thresholds and hysteresis of 0.13 V, ensuring deterministic startup and fail-safe default-high output during input-side power loss. Propagation delay drift is specified at 15.2 ps/°C at 1.8 V, supporting stable timing in wide-temperature industrial environments (–40°C to 125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | 50 Mbps - supports high-speed serial protocols including SPI clocked up to 25 MHz and UART at ≥921.6 kbps without oversampling. |
| Propagation delay | 11 ns typical at 3.3 V - enables sub-20 ns round-trip latency for real-time control loops in motor drive feedback paths. |
| CMTI | ±150 kV/μs typical - suppresses noise-induced false triggering in noisy 400 V+ DC bus environments like solar inverters. |
| Working voltage | 450 VRMS/637 VDC - meets IEC 60747-17 functional isolation requirements for grid-connected metering and factory automation. |
| Supply range | 1.71–1.89 V & 2.25–5.5 V per side - allows direct interfacing with ultra-low-voltage MCUs (1.8 V) and legacy 3.3 V/5 V peripherals without level shifters. |
| Default output | High - ensures safe logic state during input power failure, critical for enabling/disabling gate drivers or fault latches in power stages. |
| Package | DFN (8-REU), 3.0 mm × 2.0 mm - provides compact footprint and >2.2 mm creepage for space-constrained PCB layouts in DIN-rail mounted controllers. |
Pinout & Package
INA296A5QDRQ1 is housed in an 8-pin leadless DFN package (8-REU) with exposed thermal pad, measuring 3.0 mm × 2.0 mm and offering >2.2 mm creepage and clearance. The isolation barrier separates input-side (VCC1, GND1, INA, INB) and output-side (VCC2, GND2, OUTA, OUTB) terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC1 | Input-side power supply | Supplies input buffer and logic; accepts 1.71–1.89 V or 2.25–5.5 V; UVLO active below 1.41 V. |
| GND1 | Input-side ground reference | Return path for VCC1 and input signals; must be separated from GND2 by PCB isolation gap ≥8 mm. |
| INA | Channel A input | CMOS/LVCMOS-compatible digital input; VIH = 0.7×VCC1, VIL = 0.3×VCC1; 10 µA max leakage. |
| INB | Channel B input | Independent second input; identical electrical specs to INA; supports asynchronous dual-channel isolation. |
| VCC2 | Output-side power supply | Supplies output drivers; independent of VCC1; enables level translation between disparate logic domains. |
| GND2 | Output-side ground reference | Return path for VCC2 and outputs; galvanically isolated from GND1; defines output logic threshold. |
| OUTA | Channel A output | CMOS push-pull output; VOH = VCC2 – 0.1 V @ 1 mA (1.8 V), VOL = 0.1 V @ 1 mA; 4 mA drive strength at 5 V. |
| OUTB | Channel B output | Independent output with same specs as OUTA; channel-to-channel skew ≤6 ns ensures synchronized signal transfer. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel functional isolation | Two independent SiO₂-isolated signal paths enable simultaneous isolation of control and feedback lines in half-bridge gate drivers. |
| 1.71–5.5 V bidirectional level translation | Eliminates external level shifters when interfacing 1.8 V microcontrollers to 3.3 V or 5 V peripheral buses (e.g., isolated RS-485 transceivers). |
| 11 ns propagation delay at 3.3 V | Meets <20 ns timing budget for closed-loop current sensing in 20 kHz PWM motor control systems. |
| ±150 kV/μs CMTI | Prevents metastability in high-di/dt environments such as IGBT switching nodes in industrial VFDs and UPS systems. |
| Default-high output on power loss | Ensures fail-safe deactivation of downstream power stages (e.g., disabling MOSFET gates upon MCU brownout). |
Applications
| Motor Drive Control | Smart Electricity Metering |
|---|---|
Use Scenario: Isolating PWM gate-drive signals and current-sense ADC interface between MCU and 3-phase inverter stage. IC Role / Device Role / Timing Role: Dual-channel functional isolator transmitting high-speed PWM edges and low-latency analog monitoring data across isolation barrier. Use Value: 11 ns propagation delay and 50 Mbps bandwidth preserve PWM fidelity and enable real-time overcurrent protection response within 100 ns. | Use Scenario: Isolating metrology SoC communication (SPI) from high-voltage AC line measurement circuitry in Class 0.5S revenue meters. IC Role / Device Role / Timing Role: Functional isolator providing galvanic separation for serial data and clock lines between isolated ADC front-end and host processor. Use Value: 450 VRMS working voltage and >2.2 mm creepage meet IEC 62053-21 and UL 61010-1 reinforced insulation requirements. |
| Industrial PLC I/O Modules | Grid-Tied Solar Inverters |
Use Scenario: Isolating digital inputs (limit switches, emergency stops) and outputs (relay drivers, LED indicators) in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Dual-channel isolator enabling independent signal directionality and fail-safe default states for safety-critical I/O. Use Value: Default-high output ensures relay de-energization during controller power interruption, satisfying SIL 2 functional safety requirements. | Use Scenario: Isolating MPPT controller communication (UART) and DC-link voltage monitoring signals between low-voltage control board and high-voltage PV string interface. IC Role / Device Role / Timing Role: Functional isolator protecting control-side logic from common-mode transients induced by 1000 V DC PV arrays during lightning surges. Use Value: ±150 kV/μs CMTI and 2000 VRMS transient withstand prevent data corruption during fast-rising grid faults per IEC 61000-4-5 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel functional isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISO6521QDRQ1 | Reverse-direction channel configuration (one forward, one reverse); otherwise identical specs and pinout. | Suitable for bidirectional data links (e.g., isolated I²C clock stretching) where channel directionality matters. | Select ISO6521QDRQ1 only if mixed-direction isolation is required; INA296A5QDRQ1 is optimal for unidirectional dual-signal isolation. |
| SI8621ED-B-IS | Higher 100 Mbps data rate; 25 kV/μs CMTI; SOIC-8 package; no 1.8 V support (min 2.5 V). | Better suited for high-speed industrial Ethernet PHY isolation but lacks ultra-low-voltage compatibility. | Choose SI8621ED-B-IS when >50 Mbps or SOIC-8 mounting is mandatory; INA296A5QDRQ1 preferred for 1.8 V systems and DFN space savings. |
Compared with ISO6521QDRQ1 and SI8621ED-B-IS, INA296A5QDRQ1 uniquely combines 1.8 V operation, DFN footprint, and default-high fail-safe behavior - making it optimal for cost-sensitive, space-constrained motor control and metering designs requiring guaranteed safe-state behavior on power loss.
Availability
INA296A5QDRQ1 is available at Aetrix Electronics and suitable for motor drives, smart electricity metering, industrial PLC I/O modules, and grid-tied solar inverters requiring stable component supply, automotive-grade AEC-Q100 qualification, and long-term production continuity.
Supply support for INA296A5QDRQ1 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 ICs for industrial, automotive, and communications markets.
INA296A5QDRQ1 belongs to TI's ISO652x functional isolator family, engineered for cost-sensitive, space-constrained applications requiring robust noise immunity, wide supply flexibility, and fail-safe operation in non-safety-critical isolation roles.
FAQ
What is the isolation rating of INA296A5QDRQ1?
INA296A5QDRQ1 provides functional isolation with 450 VRMS/637 VDC working voltage and 2000 VRMS/2828 VDC transient overvoltage (60 s) per IEC 60747-17. It is not certified for reinforced or basic safety isolation per IEC 60747-17 or UL 1577, and must not be used in safety-critical applications without system-level validation.
Does INA296A5QDRQ1 support 1.8 V operation on both sides?
Yes, INA296A5QDRQ1 supports 1.71–1.89 V supply on both VCC1 and VCC2 simultaneously. At 1.8 V, it delivers 15 ns typical propagation delay, 50 Mbps data rate, and 1.5 mA typical supply current per side at 1 Mbps - enabling direct interfacing with ultra-low-power microcontrollers.
What is the default output state of INA296A5QDRQ1 during input power loss?
INA296A5QDRQ1 has a default-high output configuration. When VCC1 drops below UVLO threshold (1.41 V falling), OUTA and OUTB transition to high within 0.3 μs. This fail-safe behavior ensures controlled shutdown of downstream circuits like gate drivers or enable latches in power systems.
Can INA296A5QDRQ1 replace ISO6520QDRQ1?
Yes, INA296A5QDRQ1 is functionally and pin-compatible with ISO6520QDRQ1 - both are dual-forward-channel isolators in 8-REU DFN packages with identical pinout, electrical specs, and thermal characteristics. The part number change reflects TI's updated product naming convention; no design changes are required.
What layout guidelines apply to INA296A5QDRQ1 for optimal CMTI performance?
To achieve ±150 kV/μs CMTI, maintain ≥8 mm creepage/clearance between primary and secondary PCB sections, avoid copper pours under the isolation barrier, use solid ground planes on both sides, and route high-di/dt traces (e.g., gate drive) away from isolator pins. Follow TI's SLLSFU0C layout recommendations for DFN thermal pad grounding and decoupling.
INA296A5QDRQ1 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:
- 2 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
INA296A5QDRQ1 FAQ
1.How can I place an order for INA296A5QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA296A5QDRQ1 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 INA296A5QDRQ1 reliable?
The price and inventory of INA296A5QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA296A5QDRQ1 is usually 5 days.
3.What payment methods are accepted for INA296A5QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA296A5QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA296A5QDRQ1?
INA296A5QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA296A5QDRQ1 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 INA296A5QDRQ1?
For technical support, including INA296A5QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA296A5QDRQ1 requirements.
6.How does Aetrix verify that INA296A5QDRQ1 is sourced from the original manufacturer or authorized distributors?
All INA296A5QDRQ1 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 INA296A5QDRQ1 meets industry standards.
7.What is the process for return or replacement of INA296A5QDRQ1?
All INA296A5QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with INA296A5QDRQ1, 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 INA296A5QDRQ1 part is unused and in its original packaging.
Return procedure for INA296A5QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
INA296A5QDRQ1 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…
