ADG3304

Low Voltage 1.15 V to 5.5 V, 4 Channel, Bidirectional, Logic Level Translator
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Product Details

The ADG3304 is a bidirectional logic level translator that contains four bidirectional channels. It can be used in multivoltage digital system applications such as data transfer between a low voltage DSP/controller and a higher voltage device using SPI and MICROWIRE interfaces. The internal architecture allows the device to perform bidirectional logic level translation without an additional signal to set the direction in which the translation takes place.

The voltage applied to VCCA sets the logic levels on the A side of the device, while VCCY sets the levels on the Y side. For proper operation, VCCA must always be less than VCCY. The VCCA-compatible logic signals applied to the A side of the device appear as VCCY-compatible levels on the Y side. Similarly, VCCY-compatible logic levels applied to the Y side of the device appear as VCCA-compatible logic levels on the A side.

The enable pin (EN) provides three-state operation on both the A-side and the Y-side pins. When the EN pin is pulled low, the terminals on both sides of the device are in the high impedance state. The EN pin is referred to the VCCA supply voltage and driven high for normal operation.

The ADG3304 is available in compact 14-lead TSSOP, 12-ball WLCSP and 20-lead LFCSP. It is guaranteed to operate over the 1.15 V to 5.5 V supply voltage range.

Supports defense and aerospace applications (AQEC standard)

Applications

  • SPI®, MICROWIRE™ Level Translation
  • Low Voltage ASIC Level Translation
  • Smart Card Readers
  • Cell Phones and Cell Phone Cradles
  • Portable Communication Devices
  • Telecommunications Equipment
  • Network Switches and Routers
  • Storage Systems (SAN/NAS)
  • Computing/Server Applications
  • GPS
  • Portable POS Systems
  • Low Cost Serial Interfaces

Product Lifecycle

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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Most Helpful Review

by Anonymous
- SPI MISO, MOSI and SCK levels are translated as described in datasheet - a low-active RESET signal which changes only on startup and on several occations was not translated at all - the problem could be the auto-direction detection in the chip, which works only with high-speed signals

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by Anonymous, 16 Sep 14
Works for various protocol translations, works NOT for slow changing GPIO outputs
- SPI MISO, MOSI and SCK levels are translated as described in datasheet - a low-active RESET signal which changes only on startup and on several occations was not translated at all - the problem could be the auto-direction detection in the chip, which works only with high-speed signals
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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