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Analog Devices Inc. ADG3304SRU-EP-RL7
- Part No.:
- ADG3304SRU-EP-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
ADG3304SRU-EP-RL7.pdf
- Description:
- IC TRNSLTR BIDIRECTIONAL 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,476
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Product details
Overview
ADG3304SRU-EP-RL7 from Analog Devices is a 4-channel bidirectional logic level translator designed for multivoltage digital systems. It operates with VCCA from 1.15 V to 5.5 V and VCCY from 1.65 V to 5.5 V, supports −55°C to +125°C military temperature range, delivers up to 60 Mbps data rate (A→Y), and features no direction pin-enabling seamless SPI/MICROWIRE interface translation between low-voltage controllers and higher-voltage peripherals.
For engineers reviewing the ADG3304SRU-EP-RL7 datasheet, ADG3304SRU-EP-RL7 pinout, ADG3304SRU-EP-RL7 application, or ADG3304SRU-EP-RL7 equivalent, key selection criteria include bidirectional voltage translation without direction control, EN-enabled three-state operation, TSSOP-14 packaging for aerospace-grade reliability, and verified performance across 1.15–5.5 V dual-supply configurations in defense-qualified systems.
Technical Context
The ADG3304SRU-EP-RL7 implements passive FET-based bidirectional translation architecture, eliminating need for external direction control signals. Its internal pass-gate structure enables automatic signal flow reversal based on relative voltage levels at A and Y sides, with VCCA always required to be ≤ VCCY.
Enable (EN) is referenced to VCCA and controls high-impedance state on both A and Y I/O banks simultaneously. The device maintains channel-to-channel skew ≤ 2 ns and part-to-part skew ≤ 4 ns under 2.5 V–3.3 V supply conditions, supporting deterministic timing in synchronous serial interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Range (VCCA) | 1.15 V to 5.5 V - sets logic thresholds for A-side I/Os; must be ≤ VCCY for correct operation |
| Voltage Range (VCCY) | 1.65 V to 5.5 V - sets logic thresholds for Y-side I/Os; defines upper bound of compatible host systems |
| Max Data Rate | 60 Mbps (A→Y, 2.5 V–3.3 V) - supports high-speed SPI clocking up to ~30 MHz SCLK with margin |
| Propagation Delay | 4–15 ns (Y→A/A→Y) - ensures sub-20 ns round-trip latency for time-critical bidirectional protocols |
| Quiescent Current | <5 µA - enables ultra-low-power operation in battery-backed or always-on defense subsystems |
| Operating Temp | −55°C to +125°C - qualified per AQEC standard for embedded avionics, radar, and space-qualified electronics |
Pinout & Package
ADG3304SRU-EP-RL7 is housed in a 14-lead TSSOP (RU-14) package, JEDEC MO-153-AB-1 compliant, with 0.65 mm lead pitch and exposed pad not present. Pin 1 is VCCA; pins 2–5 are A1–A4; pin 7 is GND; pin 8 is EN; pins 10–13 are Y4–Y1; pin 14 is VCCY; pins 6 and 9 are NC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCCA (Pin 1) | Power supply reference for A-side I/Os | Sets input threshold and output swing for A1–A4; must be ≤ VCCY |
| A1–A4 (Pins 2–5) | Bidirectional data terminals (A bank) | Pass logic signals between low-voltage domain (e.g., 1.2 V/1.8 V ASIC) and translator core |
| GND (Pin 7) | Common ground reference | Required return path for both supply domains; shared analog/digital ground |
| EN (Pin 8) | Active-high enable control | Drives all A/Y I/Os into high-Z when low; referenced to VCCA, not VCCY |
| Y4–Y1 (Pins 10–13) | Bidirectional data terminals (Y bank) | Interface with higher-voltage peripherals (e.g., 3.3 V/5 V FPGA, microcontroller GPIO) |
| VCCY (Pin 14) | Power supply reference for Y-side I/Os | Sets input threshold and output swing for Y1–Y4; defines maximum compatible host voltage |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Eliminates PCB routing for DIR control line and firmware overhead for direction management in SPI/MICROWIRE links |
| Bidirectional auto-sensing translation | Pass-gate architecture automatically adapts signal flow direction based on active driving side, enabling true two-way data exchange |
| Three-state enable (EN) | Single-pin control places all eight I/Os (A1–A4, Y1–Y4) into high-impedance simultaneously-critical for bus sharing |
| Military-grade qualification | Manufactured under controlled baseline with single fab/assembly/test site, AQEC-compliant, full qualification data available |
Applications
| SPI Level Translation | Smart Card Interface |
|---|---|
Use Scenario: Interfacing a 1.2 V FPGA master to a 3.3 V SPI flash memory in an airborne telemetry module. IC Role / Device Role / Timing Role: Bidirectional voltage translator enabling clock, MOSI, MISO, and CS signal translation without direction control or added latency. Use Value: Maintains 60 Mbps throughput and <2 ns channel skew to preserve SPI timing margins under −55°C to +125°C operational extremes. | Use Scenario: Connecting a 1.8 V secure microcontroller to a 5 V ISO 7816 smart card reader in a military ID authentication terminal. IC Role / Device Role / Timing Role: Translates bidirectional I/O (I/O, CLK, RST) between incompatible voltage domains while supporting hot-plug detection via EN-controlled isolation. Use Value: Enables reliable contact-based smart card communication across full military temperature range with <5 µA quiescent current during standby. |
| Low-Voltage ASIC Interface | Telecom Router Backplane |
Use Scenario: Bridging a 1.15 V AI accelerator ASIC to a 2.5 V system management controller in a radiation-tolerant edge inference node. IC Role / Device Role / Timing Role: Four-channel level shifter handling reset, interrupt, status, and configuration lines with guaranteed VIH/VIL compatibility at minimum VCCA. Use Value: Supports 1.15 V operation-lowest VCCA in its class-ensuring compatibility with next-gen ultra-low-voltage process nodes. | Use Scenario: Isolating 3.3 V packet processor GPIOs from 5 V backplane monitoring circuitry in a ruggedized 5G base station router. IC Role / Device Role / Timing Role: Provides fault-containment via EN-driven three-state mode during hot-swap events, preventing bus contention on shared control lines. Use Value: Dual-supply independence allows independent power sequencing; EN referenced to VCCA avoids latch-up risk during asymmetric power-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC4T245QPWRQ1 | Direction pin required; supports 1.2 V–3.6 V; automotive AEC-Q100 qualified; no military temp range | Lacks −55°C to +125°C rating and AQEC compliance; unsuitable for defense/aerospace deployment | Select only for automotive infotainment or industrial control where extended temperature and enhanced product traceability are not required |
| MAX3370EASA+ | Fixed 1.2 V–3.6 V range; no EN pin; 2-channel only; ±15 kV ESD protection; SO-8 package | Not pin-compatible; lacks enable control and four-channel density; limited to commercial temperature range | Consider only for space-constrained commercial designs needing high ESD robustness but no military qualification or enable functionality |
Compared with SN74AVC4T245QPWRQ1 and MAX3370EASA+, the ADG3304SRU-EP-RL7 uniquely combines no-direction-pin operation, EN-controlled three-state, 4-channel density, and full AQEC-enhanced product assurance-making it the sole option for high-reliability, bidirectional, multi-supply translation in defense and aerospace platforms.
Availability
ADG3304SRU-EP-RL7 is available at Aetrix Electronics and suitable for defense avionics, space-qualified telemetry systems, and ruggedized telecom infrastructure requiring stable component supply across extended lifecycle and extreme environmental conditions.
Supply support for ADG3304SRU-EP-RL7 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADG3304-EP product line delivers enhanced reliability, extended temperature operation, and controlled manufacturing baselines for defense, aerospace, and critical infrastructure applications-designed specifically to meet AQEC standards and long-term program sustainability requirements.
FAQ
What is the minimum operating voltage for VCCA on the ADG3304SRU-EP-RL7?
The ADG3304SRU-EP-RL7 supports VCCA as low as 1.15 V, enabling direct interfacing with advanced ultra-low-voltage ASICs and processors. This minimum is validated across the full −55°C to +125°C temperature range and is specified in the Absolute Maximum Ratings and DC Characteristics tables of the official ADG3304-EP Rev. A datasheet. Operation below 1.15 V is not guaranteed and may result in undefined logic behavior or increased leakage.
Does the ADG3304SRU-EP-RL7 require a direction control signal?
No, the ADG3304SRU-EP-RL7 does not require a direction control signal. Its internal pass-gate architecture enables automatic bidirectional translation: signals driven from the A side appear translated on the Y side, and vice versa-without external direction pin management. This simplifies PCB layout and firmware design, especially in SPI and MICROWIRE applications where direction toggling would otherwise add timing complexity.
What is the function of the EN pin on the ADG3304SRU-EP-RL7?
The EN pin on the ADG3304SRU-EP-RL7 is an active-high enable input referenced to VCCA. When pulled low, it places all A-side (A1–A4) and Y-side (Y1–Y4) I/O terminals into a high-impedance state-effectively disconnecting both sides of the translator from their respective buses. This feature supports bus sharing, hot-swap isolation, and power sequencing in multi-peripheral systems.
Is the ADG3304SRU-EP-RL7 pin-compatible with the commercial-grade ADG3304BRUZ?
No, the ADG3304SRU-EP-RL7 is not pin-compatible with the commercial ADG3304BRUZ. While both use 14-lead TSSOP packages, the ADG3304SRU-EP-RL7 has NC pins at positions 6 and 9, whereas the ADG3304BRUZ uses those pins for VCCA and GND respectively. This difference reflects distinct internal routing and enhanced product layout constraints-making direct substitution mechanically and electrically invalid without board redesign.
What packaging and compliance certifications apply to the ADG3304SRU-EP-RL7?
The ADG3304SRU-EP-RL7 is supplied in a 14-lead TSSOP (RU-14) package compliant with JEDEC MO-153-AB-1. It is an Enhanced Product qualified to AQEC standards, featuring controlled manufacturing baseline, single fabrication/assembly/test site, full traceability, and military temperature range (−55°C to +125°C). It is not RoHS-compliant by default; the RoHS variant is ADG3304SRUZ-EP-RL7.
ADG3304SRU-EP-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 4
- Voltage - VCCA:
- 1.15 V ~ 5.5 V
- Voltage - VCCB:
- 1.65 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- 50Mbps
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Auto-Direction Sensing
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP (0.173", 4.40mm Width)
ADG3304SRU-EP-RL7 FAQ
1.How can I place an order for ADG3304SRU-EP-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADG3304SRU-EP-RL7 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 ADG3304SRU-EP-RL7 reliable?
The price and inventory of ADG3304SRU-EP-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADG3304SRU-EP-RL7 is usually 5 days.
3.What payment methods are accepted for ADG3304SRU-EP-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADG3304SRU-EP-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADG3304SRU-EP-RL7?
ADG3304SRU-EP-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADG3304SRU-EP-RL7 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 ADG3304SRU-EP-RL7?
For technical support, including ADG3304SRU-EP-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADG3304SRU-EP-RL7 requirements.
6.How does Aetrix verify that ADG3304SRU-EP-RL7 is sourced from the original manufacturer or authorized distributors?
All ADG3304SRU-EP-RL7 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 ADG3304SRU-EP-RL7 meets industry standards.
7.What is the process for return or replacement of ADG3304SRU-EP-RL7?
All ADG3304SRU-EP-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADG3304SRU-EP-RL7, 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 ADG3304SRU-EP-RL7 part is unused and in its original packaging.
Return procedure for ADG3304SRU-EP-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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