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Analog Devices Inc. ADG3246BCP-REEL7
- Part No.:
- ADG3246BCP-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 24-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADG3246BCP-REEL7.pdf
- Description:
- IC SW BUS 2.5/3.3V 10BIT 24LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
ADG3246BCP-REEL7 from Analog Devices is a 10-bit, 2-port, bidirectional bus switch with level translation capability operating at 2.5 V or 3.3 V supply. It provides 4.5 Ω on-resistance, 225 ps propagation delay, and supports 1.244 Gbps data rate for high-speed digital interfacing between mixed-voltage domains such as 3.3 V ADCs and 2.5 V microprocessors.
For engineers reviewing the ADG3246BCP-REEL7 datasheet, ADG3246BCP-REEL7 pinout, ADG3246BCP-REEL7 application, or ADG3246BCP-REEL7 equivalent, key selection criteria include verified level-shifting configurations (3.3 V→2.5 V, 3.3 V→1.8 V, 2.5 V→1.8 V), LFCSP-24 package thermal performance (θJA = 35 °C/W), and hot-swap-safe high-impedance behavior during power-up/down.
Technical Context
The ADG3246BCP-REEL7 integrates ten independent NMOS transmission gates controlled by a single active-low bus enable (BE) signal and an active-low level translation select (SEL) pin. Its internal voltage-clamping architecture enables three distinct translation modes without external components: SEL = VCC yields 3.3 V→2.5 V or 2.5 V→1.8 V; SEL = 0 V enables 3.3 V→1.8 V translation.
It operates across −40°C to +105°C with VCC ranging from 2.3 V to 3.6 V, delivers <200 ps propagation delay matching across channels, and maintains <1.3 mA quiescent current at 3.3 V with SEL = 0 V. The device exhibits 5 pF off-capacitance per port and 10 pF on-capacitance, supporting clean signal integrity up to 610 MHz small-signal bandwidth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3 V to 3.6 V - supports dual-rail operation in mixed-voltage systems without level-shifter ICs. |
| On Resistance (RON) | 4.5 Ω typ - ensures minimal voltage drop and signal attenuation in high-speed data paths. |
| Propagation Delay | 225 ps typ - enables sub-nanosecond timing alignment critical for DDR, PCIe, and high-speed serial buses. |
| Data Rate | 1.244 Gbps typ - validated for PRBS31 patterns at 3.3 V, suitable for USB 2.0 and SATA Gen1 interfaces. |
| Level Translation Modes | 3.3 V→2.5 V, 3.3 V→1.8 V, 2.5 V→1.8 V - selectable via SEL pin; no external resistors or regulators required. |
| Operating Temperature | −40°C to +105°C - qualified for industrial and automotive under-hood applications. |
| Package | 24-lead LFCSP (4 mm × 4 mm × 0.75 mm) - low-inductance EPAD improves thermal dissipation and EMI performance. |
Pinout & Package
The ADG3246BCP-REEL7 is housed in a 24-lead Lead Frame Chip Scale Package (LFCSP) with exposed thermal pad (CP-24-10). Dimensions are 4 mm × 4 mm × 0.75 mm; the EPAD must be soldered to a grounded copper plane for optimal thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SEL | Level Translation Select | Active-low control that configures internal clamping threshold: logic 0 enables 3.3 V→1.8 V mode; logic high enables 3.3 V→2.5 V or 2.5 V→1.8 V. |
| BE | Bus Enable | Active-low global switch control: asserts high-impedance isolation when high; connects A/B ports bidirectionally when low. |
| VCC | Positive Supply | Single supply input (2.3–3.6 V); powers internal translation circuitry and defines output voltage ceiling. |
| GND | Ground Reference | 0 V reference for all I/O and internal logic; must be low-impedance connection to minimize ground bounce. |
| A0–A9 | Port A Signals | Bidirectional data lines (10-bit) - connect to higher-voltage domain (e.g., 3.3 V ADC or FPGA). |
| B0–B9 | Port B Signals | Bidirectional data lines (10-bit) - connect to lower-voltage domain (e.g., 2.5 V or 1.8 V processor). |
| EPAD | Exposed Thermal Pad | Internally connected to GND; requires soldering to PCB ground plane for thermal management and noise reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Sub-250 ps propagation delay | Enables timing-critical interconnects in high-speed digital systems without added skew or jitter penalties. |
| Three-level translation modes | Eliminates need for discrete resistor dividers or dedicated level translators in multi-voltage SoC designs. |
| 10-bit bidirectional channel count | Supports full parallel bus widths (e.g., address/data buses) without splitting signals across multiple devices. |
| Hot-swap safe output clamping | Prevents overvoltage damage to downstream 1.8 V/2.5 V receivers during live insertion of 3.3 V peripherals. |
| Low 5 pF off-capacitance | Minimizes bus loading in isolated segments, preserving signal rise/fall times and reducing crosstalk in dense layouts. |
Applications
| ADC-to-Microprocessor Interface | PCIe Gen1 Signal Isolation |
|---|---|
Use Scenario: Interfacing a 3.3 V analog-to-digital converter with a 2.5 V microcontroller lacking 3.3 V-tolerant inputs. IC Role / Device Role / Timing Role: Bidirectional level-translating bus switch enabling direct signal pass-through with <225 ps delay and no timing skew. Use Value: Eliminates need for external voltage translators or series resistors while maintaining full 10-bit data path integrity and system-level timing budget. | Use Scenario: Isolating PCIe Gen1 lanes on a backplane to prevent capacitive loading and signal degradation during hot-plug events. IC Role / Device Role / Timing Role: High-impedance bus isolator activated/deactivated via BE control; preserves signal integrity during card insertion/removal. Use Value: Reduces effective bus capacitance by >80% in OFF state, preventing eye closure and ensuring compliance with PCIe Gen1 AC specifications. |
| USB 2.0 Data Line Translation | Docking Station Voltage Domain Bridging |
Use Scenario: Connecting a 3.3 V USB 2.0 transceiver to a 1.8 V application processor in portable docking hardware. IC Role / Device Role / Timing Role: Level translator configured via SEL = 0 V to clamp outputs at 1.8 V while accepting 3.3 V inputs. Use Value: Achieves full 480 Mbps USB 2.0 data rate with <50 ps p-p channel jitter, meeting USB IF eye diagram requirements. | Use Scenario: Bridging 3.3 V peripheral slots and 2.5 V host controller in modular laptop docking stations requiring hot-swap support. IC Role / Device Role / Timing Role: Dual-role bus switch providing both level translation and hot-plug isolation via coordinated BE/SEL control. Use Value: Enables safe insertion/removal of peripherals without system reset, while maintaining deterministic 2.5 V logic levels on host side. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switching and level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC16T245DGGR | 16-bit, dual-supply (VCCA/VCCB), push-pull output; no internal clamping; requires external termination. | Designed for point-to-point bidirectional translation with separate supply rails; lacks hot-swap-safe clamping. | Choose when dual independent supplies are available and precise voltage rail control is needed over integrated clamping. |
| TXS0108EPRJR | 8-bit, auto-direction sensing, open-drain outputs; relies on pull-ups; no fixed RON specification; max data rate 60 Mbps. | Optimized for I²C/SPI with automatic direction detection; unsuitable for high-speed parallel buses or deterministic timing paths. | Choose only for low-speed, multi-master serial buses where direction arbitration is required and speed is secondary. |
Compared with SN74AVC16T245DGGR and TXS0108EPRJR, the ADG3246BCP-REEL7 uniquely combines 10-bit width, sub-250 ps delay, integrated 3-mode clamping, and hot-swap-safe output limiting-making it the only option qualified for high-speed parallel bus translation in industrial temperature-grade applications.
Availability
ADG3246BCP-REEL7 is available at Aetrix Electronics and suitable for industrial automation controllers, embedded test equipment, and high-reliability communications modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADG3246BCP-REEL7 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 Wilmington, MA.
The ADG3246BCP-REEL7 belongs to Analog Devices' precision bus switch and level translation product line, engineered specifically for robust, low-latency interfacing between heterogeneous voltage domains in industrial, instrumentation, and communications infrastructure.
FAQ
What voltage translation modes does the ADG3246BCP-REEL7 support?
The ADG3246BCP-REEL7 supports three translation modes: 3.3 V to 2.5 V (SEL = VCC), 2.5 V to 1.8 V (SEL = VCC), and 3.3 V to 1.8 V (SEL = 0 V). These are implemented via internal NMOS clamping and require no external components. The ADG3246BCP-REEL7 datasheet specifies VP values of 2.5 V, 1.8 V, and 1.8 V respectively under corresponding conditions.
How does the ADG3246BCP-REEL7 ensure safe hot-plug operation?
The ADG3246BCP-REEL7 ensures hot-plug safety through inherent output voltage clamping: when enabled, its NMOS structure limits output swing to ≤2.5 V (at 3.3 V VCC) or ≤1.8 V (with SEL = 0 V), protecting downstream 1.8 V/2.5 V receivers from overvoltage. This behavior is guaranteed across −40°C to +105°C and requires no external circuitry. The ADG3246BCP-REEL7 also enters high-impedance state during power-up when BE is pulled high.
What is the maximum data rate supported by the ADG3246BCP-REEL7?
The ADG3246BCP-REEL7 supports a maximum data rate of 1.244 Gbps, measured with PRBS31 pattern at VCC = 3.3 V and SEL = 3.3 V. This rating is validated by eye diagram testing (Figure 22) and correlates with its 610 MHz small-signal bandwidth and <50 ps p-p channel jitter. The ADG3246BCP-REEL7 maintains this performance across its full operating temperature range.
Can the ADG3246BCP-REEL7 be used for analog signal switching?
Yes, the ADG3246BCP-REEL7 can be used for analog signal switching within its specified voltage and bandwidth limits: input range is 0 V to VCC, small-signal bandwidth is 610 MHz, and on-resistance is 4.5 Ω typical. However, its NMOS-only topology imposes a maximum signal swing of VCC – VTH; for rail-to-rail analog signals, dedicated analog switches like the ADG1419 are recommended. The ADG3246BCP-REEL7 datasheet confirms analog use in Applications Information section.
What is the thermal resistance (θJA) of the ADG3246BCP-REEL7 package?
The ADG3246BCP-REEL7 in its 24-lead LFCSP (CP-24-10) package has a junction-to-ambient thermal resistance (θJA) of 35 °C/W, measured under JEDEC JESD-51-2 conditions using a 2S2P test board with four thermal vias. This value assumes proper soldering of the EPAD to a grounded copper plane. The ADG3246BCP-REEL7's low θJA enables operation at full rated current up to +105°C ambient without derating.
ADG3246BCP-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad, CSP
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Bus Switch
- Circuit:
- 10 x 1:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2.5V, 3.3V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-LFCSP-WQ (4x4)
ADG3246BCP-REEL7 FAQ
1.How can I place an order for ADG3246BCP-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADG3246BCP-REEL7 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 ADG3246BCP-REEL7 reliable?
The price and inventory of ADG3246BCP-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADG3246BCP-REEL7 is usually 5 days.
3.What payment methods are accepted for ADG3246BCP-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADG3246BCP-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADG3246BCP-REEL7?
ADG3246BCP-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADG3246BCP-REEL7 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 ADG3246BCP-REEL7?
For technical support, including ADG3246BCP-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADG3246BCP-REEL7 requirements.
6.How does Aetrix verify that ADG3246BCP-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADG3246BCP-REEL7 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 ADG3246BCP-REEL7 meets industry standards.
7.What is the process for return or replacement of ADG3246BCP-REEL7?
All ADG3246BCP-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADG3246BCP-REEL7, 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 ADG3246BCP-REEL7 part is unused and in its original packaging.
Return procedure for ADG3246BCP-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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