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Analog Devices Inc. ADG3308BCBZ-1-RL7
- Part No.:
- ADG3308BCBZ-1-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
ADG3308BCBZ-1-RL7.pdf
- Description:
- IC TRNSLTR BIDIRECTIONAL 20WLCSP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADG3308BCBZ-1-RL7 from Analog Devices is an 8-channel bidirectional logic level translator operating from 1.15 V to 5.5 V supply range, supporting A-side (VCCA) and Y-side (VCCY) voltage domains with VCCA < VCCY constraint. It delivers up to 60 Mbps data rate (A→Y), <1 μA quiescent current, and enables seamless interface between low-voltage DSPs and higher-voltage peripherals in portable communications.
For engineers reviewing the ADG3308BCBZ-1-RL7 datasheet, ADG3308BCBZ-1-RL7 pinout, ADG3308BCBZ-1-RL7 application, or ADG3308BCBZ-1-RL7 equivalent, this device addresses multivoltage I/O bridging where direction control pins are undesirable, high-speed timing skew matters, and ultra-low power in three-state mode is critical for battery-powered designs.
Technical Context
The ADG3308BCBZ-1-RL7 implements a one-shot accelerator architecture per channel, using PMOS/NMOS transistor pairs triggered by edge detection to achieve fast rise/fall times (as low as 1 ns) without external direction control. Its dual-supply design isolates A-side (1.15–5.5 V) and Y-side (1.65–5.5 V) logic domains while maintaining bidirectional signal flow.
Enable (EN) is referenced to VCCA for this WLCSP variant, placing both A- and Y-side I/O into high-impedance state when low-reducing ICCA/ICCY to ≤1 μA. Propagation delay varies with voltage pairing: 7–10 ns (A→Y, 2.5 V→3.3 V), 5–9 ns (Y→A, 1.15–1.3 V→3.3 V), and channel-to-channel skew remains ≤4 ns across all configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Range | VCCA: 1.15 V to 5.5 V; VCCY: 1.65 V to 5.5 V; VCCA must be less than VCCY for correct operation |
| Max Data Rate | 60 Mbps (A→Y, 2.5 V→3.3 V); 40 Mbps (A→Y, 1.15–1.3 V→3.3 V); supports high-speed serial interfaces |
| Propagation Delay | tP,A→Y = 7–10 ns (2.5 V→3.3 V); tP,Y→A = 5–8 ns (same condition); ensures tight timing alignment in synchronous buses |
| Quiescent Current | ICCA = 0.17–1 μA; ICCY = 0.27–1 μA; enables ultra-low-power standby in portable systems |
| Channel Skew | tSKEW,A→Y ≤ 2 ns; tSKEW,Y→A ≤ 2 ns; minimizes inter-channel timing mismatch in parallel data paths |
| Enable Reference | EN pin referenced to VCCA (WLCSP variant); simplifies control logic when A-side is the system's primary low-voltage domain |
| Package | 20-ball WLCSP (2.5 mm × 2.5 mm, 0.4 mm pitch); suitable for space-constrained mobile PCB layouts |
Pinout & Package
ADG3308BCBZ-1-RL7 uses a 20-ball Wafer-Level Chip Scale Package (WLCSP) with 0.4 mm ball pitch and 2.5 mm × 2.5 mm footprint. The exposed pad is not electrically connected and may be left floating or tied to GND-never to VCCA or VCCY.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1–A8 | Bidirectional I/O (A-side) | Reference to VCCA; accept and drive VCCA-compatible logic levels; require no direction control |
| Y1–Y8 | Bidirectional I/O (Y-side) | Reference to VCCY; translate A-side signals to VCCY levels and vice versa |
| VCCA | A-side power supply | Defines logic thresholds on A pins; must be ≤ VCCY; min 1.15 V enables 1.2 V system interfacing |
| VCCY | Y-side power supply | Defines logic thresholds on Y pins; min 1.65 V supports 1.8 V, 2.5 V, 3.3 V, and 5 V domains |
| EN | Active-high enable | Referenced to VCCA; drives both A and Y sides into high-Z when low; reduces supply current to ≤1 μA |
| GND | Ground reference | Common return path for both supplies; required for proper biasing of internal level-shifting circuitry |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Enables true bidirectional translation without external control lines-reduces PCB routing complexity and firmware overhead |
| One-shot accelerator architecture | Delivers sub-3.5 ns rise/fall times via edge-triggered PMOS/NMOS switching-critical for clean signal integrity at >40 Mbps |
| VCCA-referenced EN pin | Eliminates need for level-shifted enable signal when VCCA is the system's lowest voltage rail-simplifies power sequencing |
| Ultra-low leakage in high-Z mode | ±1 μA max leakage on A/Y pins when EN = 0-preserves battery life and prevents unintended signal coupling in sleep states |
| Guaranteed operation over −40°C to +85°C | Validated across full industrial temperature range-suitable for automotive infotainment and ruggedized portable equipment |
Applications
| Smart Card Readers | Cell Phone Cradles |
|---|---|
Use Scenario: Interfacing a 1.2 V smart card controller with a 3.3 V host microcontroller in secure payment terminals. IC Role / Device Role / Timing Role: Bidirectional level translator bridging ISO/IEC 7816-3 compliant I/O between voltage domains without direction control. Use Value: Eliminates external direction logic and reduces BOM count while maintaining 50 Mbps data throughput for APDU exchange. | Use Scenario: Synchronizing USB data and charging control signals between a 1.8 V phone SoC and a 5 V cradle MCU. IC Role / Device Role / Timing Role: Translating UART, I²C, and GPIO signals bidirectionally with <10 ns propagation delay and <2 ns skew. Use Value: Enables compact cradle design using WLCSP package and cuts standby current to <1 μA during idle periods. |
| GPS Modules | Portable POS Systems |
Use Scenario: Connecting a 1.8 V GPS baseband processor to a 3.3 V RF front-end and memory subsystem. IC Role / Device Role / Timing Role: Level-shifting SPI clock/data and interrupt lines while preserving timing margins for 10 MHz SPI operation. Use Value: Achieves 60 Mbps capability and <4 ns part-to-part skew-ensuring deterministic latency for time-critical PPS synchronization. | Use Scenario: Bridging a 1.15 V EMV contactless reader IC to a 3.3 V main application processor in handheld payment terminals. IC Role / Device Role / Timing Role: Supporting ISO/IEC 14443 Type A/B communication at 106–848 kbps with robust noise immunity. Use Value: Maintains <1 μA quiescent current in sleep mode and withstands −40°C to +85°C ambient-meeting EMVCo environmental requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0108E | 8-channel, VCCA/VCCB range 1.2–3.6 V; EN referenced to VCCA; max 60 Mbps; 20-pin VQFN package | Lower VCCY ceiling (3.6 V vs. 5.5 V); lacks guaranteed operation down to 1.15 V on A-side | Prefer TXS0108E when interfacing only up to 3.3 V domains and board space allows VQFN; ADG3308BCBZ-1-RL7 preferred for 5 V Y-side or 1.2 V A-side operation. |
| SN74AVC8T245 | 8-bit, dual-supply translator with direction pin; VCCA/VCCB = 1.2–3.6 V; 24 mA drive strength; 24-pin TSSOP | Requires direction control; higher drive capability but larger footprint and no WLCSP option | Choose SN74AVC8T245 when driving heavy capacitive loads (>30 pF) or needing push-pull output strength; ADG3308BCBZ-1-RL7 better for minimal pin count and ultra-low power. |
Compared with TXS0108E and SN74AVC8T245, ADG3308BCBZ-1-RL7 uniquely supports 1.15 V A-side operation and 5.5 V Y-side rails while delivering sub-μA quiescent current in three-state mode-making it optimal for next-generation ultra-low-power, multi-rail portable systems where board area and battery life are constrained.
Availability
ADG3308BCBZ-1-RL7 is available at Aetrix Electronics and suitable for smart card readers, cell phone cradles, GPS modules, and portable POS systems requiring stable component supply, long-term lifecycle support, and consistent WLCSP packaging.
Supply support for ADG3308BCBZ-1-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, communications, and aerospace markets.
The ADG3308BCBZ-1-RL7 belongs to Analog Devices' precision level translation product line, engineered specifically for low-voltage, high-speed, bidirectional I/O bridging in space- and power-constrained portable electronics.
FAQ
What is the minimum VCCA voltage supported by the ADG3308BCBZ-1-RL7?
The ADG3308BCBZ-1-RL7 supports VCCA as low as 1.15 V, enabling direct interfacing with 1.2 V logic families such as LPDDR2 I/O and ultra-low-power microcontrollers. This specification is guaranteed over the full −40°C to +85°C temperature range and is validated per the Rev. E datasheet Table 1.
How does the EN pin function on the ADG3308BCBZ-1-RL7?
On the ADG3308BCBZ-1-RL7, the EN pin is referenced to VCCA-not VCCY-so it must be driven with VCCA-compatible logic levels. When pulled low, both A-side and Y-side I/O pins enter high-impedance state, reducing ICCA and ICCY to ≤1 μA. This behavior is specific to the WLCSP variant (ADG3308-1).
Can the ADG3308BCBZ-1-RL7 translate signals from 5 V to 1.2 V?
Yes-the ADG3308BCBZ-1-RL7 supports Y→A translation from 5 V (VCCY) to 1.2 V (VCCA), with typical propagation delay of 14–35 ns and maximum data rate of 25 Mbps under those conditions. Input high/low thresholds on the Y side scale with VCCY (VIHY = 0.65×VCCY), ensuring reliable recognition of 5 V TTL signals.
What is the thermal performance of the ADG3308BCBZ-1-RL7 in its WLCSP package?
The ADG3308BCBZ-1-RL7 in 20-ball WLCSP has a θJA thermal impedance of 100°C/W, as specified in the Absolute Maximum Ratings table. This value assumes standard JEDEC JESD51-7 PCB mounting; actual junction temperature rise depends on copper area, airflow, and power dissipation-max ICCA + ICCY is <2 μA in active mode, limiting self-heating.
Is the ADG3308BCBZ-1-RL7 pin-compatible with other variants in the ADG3308 family?
No-ADG3308BCBZ-1-RL7 (WLCSP) is not pin-compatible with ADG3308BCPZ-REEL7 (LFCSP) or ADG3308BRUZ-REEL7 (TSSOP). While all share identical signal functionality and ball/pin numbering, the WLCSP uses bottom-side solder balls versus top-side leads, requiring distinct PCB footprints and assembly processes.
ADG3308BCBZ-1-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:
- 8
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Auto-Direction Sensing
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-UFBGA, WLCSP
ADG3308BCBZ-1-RL7 FAQ
1.How can I place an order for ADG3308BCBZ-1-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADG3308BCBZ-1-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 ADG3308BCBZ-1-RL7 reliable?
The price and inventory of ADG3308BCBZ-1-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADG3308BCBZ-1-RL7 is usually 5 days.
3.What payment methods are accepted for ADG3308BCBZ-1-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADG3308BCBZ-1-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADG3308BCBZ-1-RL7?
ADG3308BCBZ-1-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADG3308BCBZ-1-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 ADG3308BCBZ-1-RL7?
For technical support, including ADG3308BCBZ-1-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADG3308BCBZ-1-RL7 requirements.
6.How does Aetrix verify that ADG3308BCBZ-1-RL7 is sourced from the original manufacturer or authorized distributors?
All ADG3308BCBZ-1-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 ADG3308BCBZ-1-RL7 meets industry standards.
7.What is the process for return or replacement of ADG3308BCBZ-1-RL7?
All ADG3308BCBZ-1-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADG3308BCBZ-1-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 ADG3308BCBZ-1-RL7 part is unused and in its original packaging.
Return procedure for ADG3308BCBZ-1-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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