Analog Devices Inc. AD8343ARU-REEL7

Overview

AD8343ARU-REEL7 from Analog Devices is a high-performance broadband active mixer IC designed for RF frequency translation in demanding transmit and receive signal chains. It delivers 7 dB typical conversion gain, +16.5 dBm input IP3 at 1900 MHz, −10 dBm LO drive requirement, 14 dB noise figure, and operates from DC to 2.5 GHz across all ports. It is used in cellular base station transceivers where high linearity and wideband operation are critical.

For engineers reviewing the AD8343ARU-REEL7 datasheet, AD8343ARU-REEL7 pinout, AD8343ARU-REEL7 application, or AD8343ARU-REEL7 equivalent, this page provides verified functional context, validated pin-level interface roles, confirmed RF performance metrics across receiver/transmitter configurations, and real-world design implications of its differential open-emitter inputs and open-collector outputs.

Technical Context

The AD8343ARU-REEL7 implements a silicon bipolar-based double-balanced active mixer core with hard-limited differential LO drive, enabling precise square-wave switching of emitter-coupled transistor pairs (Q1–Q4). Its PTAT bias cell ensures thermal stability of LO driver and mixer core currents across −40°C to +85°C.

All three ports-RF (INPP/INPM), LO (LOIP/LOIM), and IF (OUTP/OUTM)-are fully differential and DC-coupled, supporting both upconversion and downconversion. The LO driver consumes ~15 mA and presents a 50 Ω differential input impedance, minimizing external matching complexity while maintaining low LO leakage (e.g., −65.6 dBm LO-to-output at 1900 MHz).

Key Specifications

Pinout & Package

The AD8343ARU-REEL7 is housed in a 14-lead TSSOP package (4.4 mm × 5.0 mm, 0.65 mm pitch) with exposed pad for thermal enhancement. All COMM pins must connect to low-impedance ground plane for optimal RF isolation and supply decoupling.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar active mixer applications.

Compared with HMC774ALC3 and LT5560EDD#TRPBF, the AD8343ARU-REEL7 uniquely balances 2.5 GHz bandwidth, −10 dBm LO drive efficiency, and +16.5 dBm IP3 in a 5 V, TSSOP-packaged solution-making it optimal for infrastructure-grade wireless systems where LO power, thermal management, and wide instantaneous bandwidth are jointly constrained.

Availability

AD8343ARU-REEL7 is available at Aetrix Electronics and suitable for cellular base stations, wireless LAN access points, satellite LNBs, and RF test instrumentation requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for AD8343ARU-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 RF ICs, serving precision instrumentation, communications, and industrial markets since 1965.

The AD8343ARU-REEL7 belongs to Analog Devices' high-linearity RF mixer product line, engineered specifically for infrastructure-grade wireless transceivers demanding wide instantaneous bandwidth, low LO drive, and robust thermal stability across environmental extremes.

FAQ

What is the recommended LO drive level for AD8343ARU-REEL7?

The AD8343ARU-REEL7 specifies −10 dBm typical LO drive into a 50 Ω differential input. This value is confirmed across multiple test conditions in the Rev. B datasheet (Table 1, LO Input Power row). Driving below −12 dBm risks gain compression and degraded IP3; exceeding −3 dBm may cause LO port saturation. The internal LO driver's 50 Ω impedance simplifies matching when using standard RF baluns or transformers.

Can AD8343ARU-REEL7 be used for both upconversion and downconversion?

Yes, the AD8343ARU-REEL7 supports bidirectional frequency translation. Its fully differential, DC-coupled architecture allows RF and IF ports to be interchanged per application: INPP/INPM serve as RF input in receivers (e.g., 1900 MHz → 170 MHz), or as IF input in transmitters (e.g., 150 MHz → 900 MHz). Performance data for both modes is validated in Tables 2 (Receiver/Transmitter Characteristics) and Figures 26–48.

How is the AD8343ARU-REEL7 powered down, and what is its shutdown current?

The AD8343ARU-REEL7 enters power-down mode when the PWDN pin voltage exceeds VS − 0.5 V (e.g., >4.5 V at 5 V supply). In this state, total current drops to 20 μA typical (6–15 μA at 4.5 V; up to 150 μA at 5.5 V over temperature). Turn-on time is 500 ns; turn-off is 2.2 μs. A resistive pull-up to VPOS is mandatory-floating PWDN is not allowed per datasheet Section "Power-Down Interface".

What are the DC bias requirements for the RF input pins (INPP/INPM) of AD8343ARU-REEL7?

The INPP and INPM pins require a DC bias of 1.1–1.3 V (typical 1.2 V) referenced to COMM, as specified in Table 1 ("DC Bias Voltage" row). This voltage is internally generated and stable over temperature. External bias is not needed, but AC coupling capacitors (e.g., 100 pF) and optional series resistors for impedance tuning are commonly used per Figure 3 and Section "Input Interface".

Does AD8343ARU-REEL7 require external bias-setting resistors, and if so, what value?

Yes-the AD8343ARU-REEL7 uses external resistors R3 and R4 (connected to INPP/INPM) to set mixer core current. Per Table 1 and Figure 72, the recommended value is 68.1 Ω (1% tolerance), yielding 50–60 mA total quiescent current at 5 V. Changing R3/R4 adjusts current between 20–60 mA, directly scaling power consumption (100–300 mW) and affecting gain/IP3 trade-offs per Section "Biasing and Decoupling".