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Analog Devices Inc. ADG3304SRUZ-EP-RL7
- Part No.:
- ADG3304SRUZ-EP-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
ADG3304SRUZ-EP-RL7.pdf
- Description:
- IC TRNSLTR BIDIRECTIONAL 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:623
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Product details
Overview
ADG3304SRUZ-EP-RL7 from Analog Devices is a 4-channel bidirectional logic level translator operating from 1.15 V to 5.5 V on the A-side and 1.65 V to 5.5 V on the Y-side, with no direction pin, <5 µA quiescent current, and military temperature range (−55°C to +125°C), used for SPI/MICROWIRE translation between low-voltage ASICs and higher-voltage peripherals in defense-grade telecom and storage systems.
For engineers reviewing the ADG3304SRUZ-EP-RL7 datasheet, ADG3304SRUZ-EP-RL7 pinout, ADG3304SRUZ-EP-RL7 application, or ADG3304SRUZ-EP-RL7 equivalent, key selection criteria include bidirectional operation without control signals, VCCA < VCCY voltage constraint, EN-referenced enable logic, TSSOP-14 packaging, and guaranteed skew performance across aerospace-grade supply conditions.
Technical Context
The ADG3304SRUZ-EP-RL7 implements passive FET-based bidirectional translation per channel, requiring separate A-side (VCCA) and Y-side (VCCY) supplies where VCCA must always be ≤ VCCY. Its internal architecture eliminates need for direction control signals by leveraging body-diode conduction paths and gate-driven pass transistors.
Enable (EN) is referenced to VCCA and asserts high-impedance state on both A and Y terminals when low; propagation delay ranges from 4 ns (Y→A, 2.5–3.3 V) to 40 ns (Y→A, 1.15–1.3 V/1.8 V), with channel-to-channel skew ≤3 ns and part-to-part skew ≤23.5 ns under worst-case low-voltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Range (A-side) | 1.15 V to 5.5 V - sets logic thresholds for A1–A4 I/O pins; must be ≤ VCCY |
| Voltage Range (Y-side) | 1.65 V to 5.5 V - defines compatible interface voltages for Y1–Y4 I/O pins |
| Max Data Rate | 60 Mbps - achievable only at VCCA ≥2.5 V and VCCY = 3.3 V; drops to 25 Mbps at 1.15–1.3 V/1.8 V |
| Quiescent Current | <5 µA - enables ultra-low-power operation in battery-backed or always-on defense systems |
| Operating Temp | −55°C to +125°C - qualified per AQEC standard for extended life in harsh environments |
| Enable Logic | Active-high, VCCA-referenced - simplifies control interface in mixed-supply systems |
| Channel Count | 4 independent bidirectional channels - supports full-duplex SPI bus (MOSI/MISO/SCLK/CS) translation |
Pinout & Package
The ADG3304SRUZ-EP-RL7 is housed in a 14-lead TSSOP (RU-14) package with exposed pad not connected internally; pin 1 is VCCA, pins 2–5 are A1–A4 bidirectional I/Os referenced to VCCA, pins 10–13 are Y1–Y4 bidirectional I/Os referenced to VCCY, pin 8 is EN (active-high, VCCA-referenced), pin 7 is GND, and pins 6 and 9 are no-connect.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCCA (Pin 1) | A-side power supply input | Sets logic thresholds for A1–A4; must be ≤ VCCY and ≥1.15 V |
| A1–A4 (Pins 2–5) | Bidirectional data I/O (A-side) | Translate logic levels between VCCA-domain devices (e.g., low-voltage MCU) and Y-side |
| GND (Pin 7) | Analog/digital ground reference | Common return path for both supply domains; requires low-impedance layout |
| EN (Pin 8) | Enable control input | Active-high, VCCA-referenced; drives all A/Y pins to Hi-Z when low |
| Y1–Y4 (Pins 10–13) | Bidirectional data I/O (Y-side) | Interface with VCCY-domain peripherals (e.g., 3.3 V or 5 V SPI flash) |
| VCCY (Pin 14) | Y-side power supply input | Sets logic thresholds for Y1–Y4; minimum 1.65 V, max 5.5 V |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Eliminates external control lines and timing constraints for bidirectional protocols like SPI |
| Ultra-low quiescent current | <5 µA enables use in always-on subsystems without compromising battery life or thermal budget |
| Controlled manufacturing baseline | Single fab and assembly site ensures consistent parametric performance and traceability for defense programs |
| Military temperature qualification | −55°C to +125°C operation verified per AQEC standards for aerospace deployment |
| Low capacitance I/O | A-side CA = 9 pF, Y-side CY = 6 pF - minimizes signal distortion and loading on high-speed buses |
Applications
| SPI Bus Level Translation | Smart Card Reader Interface |
|---|---|
Use Scenario: Translating signals between a 1.2 V FPGA controller and a 3.3 V SPI flash memory in a secure communications module. IC Role / Device Role / Timing Role: Bidirectional level translator enabling full-duplex MOSI/MISO/SCLK/CS communication across voltage domains. Use Value: Eliminates need for discrete MOSFET translators or direction-control logic, reducing BOM count and PCB area by >40%. | Use Scenario: Interfacing a 1.8 V smart card IC with a 5 V host microcontroller in a military-grade ID reader. IC Role / Device Role / Timing Role: Voltage-level agnostic bidirectional translator supporting ISO/IEC 7816-3 timing requirements. Use Value: Maintains sub-10 ns channel skew and 60 Mbps throughput at 1.8 V/5 V, ensuring reliable T=0 protocol handshaking. |
| Low-Voltage ASIC Interfacing | Telecom Network Switch Control |
Use Scenario: Connecting a 1.15 V AI accelerator ASIC to legacy 2.5 V peripheral registers in an edge inference node. IC Role / Device Role / Timing Role: Four-channel translator preserving signal integrity across mixed-voltage register access sequences. Use Value: Supports 40 Mbps operation down to 1.15 V A-side, meeting timing closure for burst-mode configuration writes. | Use Scenario: Isolating control plane logic (1.2 V SoC) from line-card management interfaces (3.3 V CPLD) in a ruggedized router. IC Role / Device Role / Timing Role: Radiation-tolerant, high-reliability level shifter for out-of-band management signaling. Use Value: AQEC qualification and −55°C to +125°C operation ensure uninterrupted service during thermal cycling in outdoor cabinets. |
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 to 3.6 V; automotive AEC-Q100 qualified | Lacks military temp range and AQEC traceability; suited for automotive infotainment, not defense systems | Select when direction control is acceptable and automotive qualification is mandatory |
| MAX3370EASA+ | Fixed 1.2 V to 3.6 V operation; no EN pin; 1.5 ns typical skew; SO-8 package | Smaller footprint but limited voltage flexibility and no three-state enable for power gating | Select for space-constrained consumer designs where VCCA/VCCY range is fixed and enable functionality is unnecessary |
Compared with SN74AVC4T245QPWRQ1 and MAX3370EASA+, the ADG3304SRUZ-EP-RL7 uniquely delivers pinless bidirectionality, AQEC-compliant military temperature support, and VCCA-referenced enable-critical for defense-grade SPI isolation where layout simplicity, reliability, and supply flexibility are non-negotiable.
Availability
ADG3304SRUZ-EP-RL7 is available at Aetrix Electronics and suitable for defense electronics, aerospace avionics, and industrial telecom infrastructure requiring stable component supply across extended temperature and long product lifecycles.
Supply support for ADG3304SRUZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and defense markets since 1965.
The ADG3304-EP product line delivers radiation-hardened, temperature-qualified bidirectional level translators for mission-critical systems where voltage domain bridging must survive extreme environmental stress without software or hardware intervention.
FAQ
What is the maximum allowable voltage difference between VCCA and VCCY for reliable operation of the ADG3304SRUZ-EP-RL7?
The ADG3304SRUZ-EP-RL7 requires VCCA ≤ VCCY at all times, with absolute maximum ratings specifying VCCY up to VCCA + 7 V. However, functional operation is guaranteed only when VCCA is within 1.15 V to VCCY (min 1.65 V). For example, if VCCY = 3.3 V, VCCA may range from 1.15 V to 3.3 V-but never exceed it. Exceeding this constraint risks latch-up or undefined translation behavior in the ADG3304SRUZ-EP-RL7.
Does the ADG3304SRUZ-EP-RL7 support true bidirectional translation without external direction control, and how is this achieved?
Yes, the ADG3304SRUZ-EP-RL7 performs true bidirectional level translation without a direction pin by using internal pass-gate FETs with cross-coupled gate drive. When an A-side signal rises, it turns on the corresponding Y-side FET via its body diode and gate coupling, propagating the level to Y; reverse action occurs for Y-to-A transitions. This architecture is intrinsic to the ADG3304SRUZ-EP-RL7 design and eliminates timing-critical control signals required by directional translators.
What is the role of the EN pin in the ADG3304SRUZ-EP-RL7, and what supply domain references it?
The EN pin in the ADG3304SRUZ-EP-RL7 is an active-high enable input referenced strictly to the VCCA supply domain-not VCCY or a separate logic rail. When pulled low relative to VCCA, it places both A-side and Y-side I/O pins into high-impedance state, effectively disconnecting the translation path. This allows power gating of signal paths in low-power modes while maintaining domain isolation, a key feature confirmed in the ADG3304SRUZ-EP-RL7 functional description and truth table.
Can the ADG3304SRUZ-EP-RL7 operate with VCCA = 1.15 V and VCCY = 1.8 V, and what performance impact does this have?
Yes, the ADG3304SRUZ-EP-RL7 is fully specified for VCCA = 1.15 V to 1.3 V and VCCY = 1.8 V, delivering 25 Mbps maximum data rate in both directions. Propagation delay increases to 12–40 ns (A→Y/Y→A), rise/fall times widen (up to 24 ns), and part-to-part skew reaches 23.5 ns-values explicitly tabulated in the ADG3304SRUZ-EP-RL7 switching characteristics section. These parameters remain guaranteed over −55°C to +125°C.
Is the ADG3304SRUZ-EP-RL7 pin-compatible with standard commercial-grade ADG3304 variants, and what distinguishes its enhanced product status?
Yes, the ADG3304SRUZ-EP-RL7 shares identical pinout, footprint, and electrical interface with commercial ADG3304 variants (e.g., ADG3304BRUZ), but adds AQEC-standard qualification, controlled manufacturing baseline (single fab/assembly site), extended −55°C to +125°C operation, product change notification, and qualification data on request-features documented in the ADG3304SRUZ-EP-RL7 ordering guide and general descriptions.
ADG3304SRUZ-EP-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP (0.173", 4.40mm Width)
ADG3304SRUZ-EP-RL7 FAQ
1.How can I place an order for ADG3304SRUZ-EP-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADG3304SRUZ-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 ADG3304SRUZ-EP-RL7 reliable?
The price and inventory of ADG3304SRUZ-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 ADG3304SRUZ-EP-RL7 is usually 5 days.
3.What payment methods are accepted for ADG3304SRUZ-EP-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADG3304SRUZ-EP-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADG3304SRUZ-EP-RL7?
ADG3304SRUZ-EP-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADG3304SRUZ-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 ADG3304SRUZ-EP-RL7?
For technical support, including ADG3304SRUZ-EP-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADG3304SRUZ-EP-RL7 requirements.
6.How does Aetrix verify that ADG3304SRUZ-EP-RL7 is sourced from the original manufacturer or authorized distributors?
All ADG3304SRUZ-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 ADG3304SRUZ-EP-RL7 meets industry standards.
7.What is the process for return or replacement of ADG3304SRUZ-EP-RL7?
All ADG3304SRUZ-EP-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADG3304SRUZ-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 ADG3304SRUZ-EP-RL7 part is unused and in its original packaging.
Return procedure for ADG3304SRUZ-EP-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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