Analog Devices Inc. ADG3300BRUZ

Overview

ADG3300BRUZ from Analog Devices is an 8-channel bidirectional logic level translator IC designed for voltage domain bridging between low-voltage (1.15 V–5.5 V) and higher-voltage (1.65 V–5.5 V) digital systems. It enables simultaneous A→Y and Y→A translation without direction control pins, supports up to 60 Mbps data rate, and operates across −40°C to +85°C in a 20-lead TSSOP package. It is used in microprocessor-peripheral interfacing where supply rails differ, such as 1.8 V DSPs communicating with 3.3 V peripherals.

For engineers reviewing the ADG3300BRUZ datasheet, ADG3300BRUZ pinout, ADG3300BRUZ application, or ADG3300BRUZ equivalent, key selection criteria include guaranteed bidirectional operation across overlapping supply ranges (VCCA ≤ VCCY), channel-to-channel skew <4 ns, three-state enable control referenced to VCCA, and compatibility with CMOS loads up to 50 pF.

Technical Context

The ADG3300BRUZ implements a one-shot accelerator architecture per channel, using PMOS/NMOS transistor pairs triggered by edge detection to achieve fast rise/fall times (<3.5 ns typical) and low propagation delay (as low as 4 ns Y→A). Its internal design eliminates need for external direction control while maintaining independent voltage references: VCCA sets logic thresholds on A-side (A1–A8), VCCY on Y-side (Y1–Y8).

Enable (EN) is referenced to VCCA and places Y-side pins in high-impedance state when low, pulling A-side pins down via 6 kΩ internal resistors. Power supply sequencing requires VCCY applied before VCCA to prevent excessive current draw, and both supplies must be decoupled locally with 0.1 µF capacitors.

Key Specifications

Pinout & Package

The ADG3300BRUZ is housed in a 20-lead TSSOP package (4.4 mm × 6.5 mm, 0.65 mm pitch) with exposed pad for thermal dissipation. Pin 1 is A1; pin 11 is GND; pin 20 is Y1. All A-side pins (A1–A8) are referenced to VCCA; all Y-side pins (Y1–Y8) to VCCY.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bidirectional level translation applications.

Compared with TXS0108E and SN74AVC8T245, the ADG3300BRUZ uniquely delivers guaranteed bidirectional operation without direction control, integrated A-side pull-down during disable, and verified 60 Mbps performance at 2.5 V/3.3 V - making it optimal for space-constrained, low-power, and timing-critical mixed-voltage interfaces.

Availability

ADG3300BRUZ is available at Aetrix Electronics and suitable for microprocessor-peripheral interfacing, shared-bus arbitration, smart card readers, and portable POS terminals requiring stable component supply across extended temperature and voltage ranges.

Supply support for ADG3300BRUZ 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 industrial, automotive, communications, and healthcare markets since 1965.

The ADG3300BRUZ belongs to Analog Devices' precision level translation product line, engineered specifically for robust, low-skew, bidirectional interfacing in multivoltage digital systems where timing integrity and power efficiency are critical.

FAQ

What is the minimum VCCA voltage supported by the ADG3300BRUZ?

The ADG3300BRUZ supports VCCA as low as 1.15 V, enabling direct interfacing with ultra-low-voltage logic families such as 1.2 V ASICs and sub-1.8 V microcontrollers. At this voltage, the device maintains functional operation with guaranteed input thresholds (VIHA = VCCA − 0.3 V) and output drive capability, provided VCCY is ≥ VCCA and within its 1.65 V–5.5 V range. This makes ADG3300BRUZ suitable for next-generation energy-efficient portable designs.

Can the ADG3300BRUZ translate between 5 V and 1.8 V logic levels?

Yes, the ADG3300BRUZ supports translation from 1.8 V (A-side) to 5 V (Y-side) and vice versa, with VCCA = 1.8 V and VCCY = 5 V. In this configuration, the guaranteed maximum data rate is 50 Mbps for A→Y translation and 50 Mbps for Y→A translation under CL = 50 pF and CL = 15 pF loading respectively. The ADG3300BRUZ maintains valid VOH/VOL levels and sub-10 ns propagation delay, making it appropriate for legacy 5 V peripheral interfacing in modern low-voltage systems.

How does the EN pin function in the ADG3300BRUZ?

The EN pin in the ADG3300BRUZ is an active-high enable referenced to VCCA. When EN is low, Y1–Y8 enter high-impedance state and A1–A8 are pulled down to GND via internal 6 kΩ resistors - enabling bus sharing and preventing contention. When EN is high, bidirectional level translation resumes. This behavior is fully specified across the entire VCCA range (1.15 V–5.5 V), and EN may be driven by either VCCA- or VCCY-compatible logic levels.

Is the ADG3300BRUZ pin-compatible with other Analog Devices level translators?

No, the ADG3300BRUZ is not pin-compatible with other Analog Devices level translators such as the ADG324x or ADG3308 families. Its 20-lead TSSOP pinout - with A1–A8 on pins 1–9 (excluding VCCA and EN), Y1–Y8 on pins 12–20 (excluding GND and VCCY), and dedicated VCCA/VCCY/EN/GND placements - is unique to the ADG3300BRUZ. Board redesign is required when substituting with any other Analog Devices level translator due to differing pin assignments and supply configurations.

What is the maximum capacitive load the ADG3300BRUZ can drive on the Y-side?

The ADG3300BRUZ is characterized to drive up to 50 pF on the Y-side for A→Y translation and up to 15 pF for Y→A translation, with guaranteed timing and voltage specifications. At 50 pF and 25 Mbps (1.2 V → 1.8 V), eye diagrams confirm signal integrity with >200 mV vertical opening. Driving loads beyond these values increases propagation delay and rise/fall times, potentially violating setup/hold margins in high-speed interfaces - external buffering is recommended for loads exceeding 50 pF.