Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > RF and Wireless > RF Mixers

Analog Devices Inc. AD8344ACPZ-WP

Name: AD8344ACPZ-WP
Brand: Analog Devices Inc.
SKU: AD8344ACPZ-WP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: AD8344ACPZ-WP

Manufacturer:: Analog Devices Inc.

Category:: RF Mixers

Package:: 16-VFQFN Exposed Pad, CSP

Datasheet:: AD8344ACPZ-WP.pdf

Description:: DOUBLE BALANCED MIXER, 400MHZ MI

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:12,900

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

AD8344ACPZ-WP from Analog Devices is a high-performance, broadband active downconverting mixer IC optimized for receive-channel applications. It operates from 400 MHz to 1.2 GHz RF input, delivers 4.5 dB typical conversion gain at 890 MHz, exhibits 10.5 dB SSB noise figure and 24 dBm input IP3, and supports single-ended 50 Ω RF/LO interfaces with differential open-collector IF outputs - deployed in cellular base station receivers and ISM-band instrumentation.

For engineers reviewing the AD8344ACPZ-WP datasheet, AD8344ACPZ-WP pinout, AD8344ACPZ-WP application, or AD8344ACPZ-WP equivalent, key selection criteria include RF/LO frequency range compatibility, external bias resistor (RBIAS) tuning for dynamic range vs. power trade-offs, differential IF output loading requirements (200 Ω), and high-side LO injection architecture for image rejection.

Technical Context

The AD8344ACPZ-WP is a SiGe-based active mixer with integrated LO limiting amplifier, inductively degenerated RF voltage-to-current converter, and four-transistor switching core. Its high-side LO architecture (LO = RF + IF) enables superior image rejection and noise performance by downconverting desired signals with higher gain than image frequencies.

It features three isolated supply pins (VPDC, VPMX, VPLO) to minimize interport coupling and spurious generation, and uses an external resistor on EXRB to set mixer bias current - directly controlling conversion gain, IP3, P1dB, and quiescent current across 2.4 kΩ to 3.9 kΩ.

Key Specifications

Parameter	Value and Actual Design Meaning
RF Frequency Range	400 MHz to 1200 MHz - supports full-band operation in cellular, ISM, and radio link receivers without re-tuning.
Conversion Gain	4.5 dB at 890 MHz RF / 1090 MHz LO - provides net signal amplification before IF filtering/amplification, reducing cascaded noise impact.
Noise Figure (SSB)	10.5 dB at 890 MHz - defines minimum detectable signal level in low-SNR environments such as weak-channel base station reception.
Input IP3	24 dBm at 890 MHz - determines third-order intermodulation distortion floor; enables handling of strong adjacent-channel interferers.
Input P1dB	8.5 dBm at 890 MHz - sets upper RF input limit before 1 dB compression; defines usable linear dynamic range.
LO Drive Level	0 dBm (−10 to +4 dBm range) - eliminates need for external LO buffer amplifiers in most systems, simplifying RF front-end design.
Supply Current	84 mA total at 5 V - includes 44 mA for mixer core, 35 mA for LO buffer, and 5 mA for bias cell; power-down reduces current to 500 µA.
Package	16-lead LFCSP (3 mm × 3 mm, exposed paddle) - provides low thermal resistance (θJA = 77°C/W) and robust RF grounding via EPAD-to-AGND connection.

Pinout & Package

AD8344ACPZ-WP is housed in a 16-lead, 3 mm × 3 mm LFCSP package with exposed thermal pad (EPAD) that must be soldered to AGND for thermal and RF performance. Pin numbering follows standard top-view orientation with pin 1 at top-left corner.

Pin/Terminal	Circuit Role	Design Meaning
1 (VPLO)	LO buffer supply	Provides dedicated 4.75–5.25 V supply to LO limiting amplifier; isolation prevents LO noise coupling into RF/IF paths.
2 (LOCM)	LO common-mode AC ground	AC-coupled reference for LO input; requires low-inductance capacitor to ground to maintain 50 Ω impedance and balance.
3 (LOIN)	LO input	Single-ended 50 Ω port accepting −10 to +4 dBm LO drive; internal bias allows ac-coupling only - no DC path permitted.
4,5,8,9,13 (COMM)	Device common (AGND)	DC ground reference for all internal blocks; multiple pins reduce ground inductance and improve isolation between RF/LO/IF sections.
6,7 (IFOM, IFOP)	Differential IF outputs	Open-collector NPN outputs requiring external DC bias (e.g., 5 V via choke or transformer); present ~10 kΩ \|\| 1 pF impedance - must be loaded with 200 Ω differential for specified gain.
10 (EXRB)	Mixer bias control	Connects to ground via external resistor (typ. 2.43 kΩ); sets mixer core current - directly trades dynamic range (IP3/P1dB) against quiescent power.
11 (PWDN)	Power-down enable	Logic-low (≤ VS − 1.4 V) enables operation; logic-high disables device, reducing supply current to < 500 µA with 10 ns disable time.
12 (VPDC)	DC bias cell supply	Dedicated supply for internal bias circuitry; decoupling here minimizes supply-induced offset drift and LO leakage.
14 (RFCM)	RF common-mode AC ground	AC-coupled reference for RFIN; critical for maintaining 50 Ω match and suppressing even-order distortion in single-ended RF drive.
15 (RFIN)	RF input	Single-ended 50 Ω port; accepts up to 8.5 dBm (P1dB); must be ac-coupled - no DC path to preserve internal bias points.
16 (VPMX)	Mixer core supply	Isolated 4.75–5.25 V supply for mixing core; separation from VPLO/VPDC prevents supply rail crosstalk and improves port-to-port isolation.
EPAD	Exposed thermal pad	Must be connected to AGND plane; provides primary thermal path (θJA = 77°C/W) and RF return path for COMM pins.

Key Features

Feature	Design Value
High-side LO architecture	Enables fLO > fRF operation (e.g., 1090 MHz LO for 890 MHz RF), improving image rejection and wideband noise suppression over low-side injection.
External RBIAS tuning	Adjusting resistor from EXRB to ground (2.4–3.9 kΩ) lets designers optimize SFDR, power consumption, and temperature stability per system requirements.
Differential open-collector IF outputs	Supports flexible interface options: balun-based single-ended conversion, choke-biased differential drive, or direct connection to IF amplifiers like AD8351 with 200 Ω termination.
Three isolated supply domains	VPLO, VPMX, and VPDC separation suppresses supply-induced spurs and enhances LO-to-RF/IF isolation beyond 40 dB in typical layouts.
Integrated LO limiting amplifier	Accepts low-level LO drive (0 dBm typ.) and hard-limits signal to ensure clean, balanced switching of mixer core - minimizing distortion from LO harmonics.
Power-down mode	Reduces total supply current from 84 mA to < 500 µA in < 10 ns, enabling rapid TDD or burst-mode operation in battery-powered or multi-channel receivers.

Applications

Cellular Base Station Receiver	ISM Band Instrumentation
Use Scenario: Downconversion of 824–894 MHz or 890–960 MHz cellular uplink signals in macro/micro base station transceivers. IC Role / Device Role / Timing Role: Active receive mixer performing high-side LO downconversion (e.g., LO = 1090 MHz → IF = 200 MHz) with minimal added noise and distortion. Use Value: 10.5 dB noise figure and 24 dBm IP3 enable detection of weak user signals amid strong interferers, meeting 3GPP ACLR and sensitivity specs.	Use Scenario: Signal acquisition in 902–928 MHz ISM band test equipment, spectrum analyzers, or wireless sensor gateways. IC Role / Device Role / Timing Role: Front-end mixer translating ISM-band RF to lower IF for digitization and analysis, operating across full 400–1200 MHz bandwidth. Use Value: Broadband 4.5 dB gain and stable 8.5 dBm P1dB allow consistent dynamic range across frequency sweeps without recalibration.
Point-to-Point Radio Link	RF Test & Measurement Equipment
Use Scenario: High-reliability microwave backhaul receiver operating at 900 MHz or 1.2 GHz carrier frequencies in outdoor deployments. IC Role / Device Role / Timing Role: Primary downconverter in ruggedized receiver chain, interfacing with ceramic filters and low-noise IF amplifiers. Use Value: −48 dBc LO-to-RF leakage and 70+ dBc image rejection (via high-side LO) ensure clean IF output under varying temperature (−40°C to +85°C).	Use Scenario: Modular IF section in benchtop vector signal analyzers or production-line RF parametric testers requiring repeatable mixer characterization. IC Role / Device Role / Timing Role: Calibration-grade active mixer used in known-signal injection paths to verify IF chain linearity and noise floor. Use Value: Tight gain distribution (±0.18 dB std dev) and IP3 consistency (±0.24 dBm std dev) support traceable, production-ready test accuracy.

Cellular Base Station Receiver

ISM Band Instrumentation

Use Scenario: Downconversion of 824–894 MHz or 890–960 MHz cellular uplink signals in macro/micro base station transceivers.

IC Role / Device Role / Timing Role: Active receive mixer performing high-side LO downconversion (e.g., LO = 1090 MHz → IF = 200 MHz) with minimal added noise and distortion.

Use Value: 10.5 dB noise figure and 24 dBm IP3 enable detection of weak user signals amid strong interferers, meeting 3GPP ACLR and sensitivity specs.

Use Scenario: Signal acquisition in 902–928 MHz ISM band test equipment, spectrum analyzers, or wireless sensor gateways.

IC Role / Device Role / Timing Role: Front-end mixer translating ISM-band RF to lower IF for digitization and analysis, operating across full 400–1200 MHz bandwidth.

Use Value: Broadband 4.5 dB gain and stable 8.5 dBm P1dB allow consistent dynamic range across frequency sweeps without recalibration.

Point-to-Point Radio Link

RF Test & Measurement Equipment

Use Scenario: High-reliability microwave backhaul receiver operating at 900 MHz or 1.2 GHz carrier frequencies in outdoor deployments.

IC Role / Device Role / Timing Role: Primary downconverter in ruggedized receiver chain, interfacing with ceramic filters and low-noise IF amplifiers.

Use Value: −48 dBc LO-to-RF leakage and 70+ dBc image rejection (via high-side LO) ensure clean IF output under varying temperature (−40°C to +85°C).

Use Scenario: Modular IF section in benchtop vector signal analyzers or production-line RF parametric testers requiring repeatable mixer characterization.

IC Role / Device Role / Timing Role: Calibration-grade active mixer used in known-signal injection paths to verify IF chain linearity and noise floor.

Use Value: Tight gain distribution (±0.18 dB std dev) and IP3 consistency (±0.24 dBm std dev) support traceable, production-ready test accuracy.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
HMC774ALC3	Wider RF range (10–4000 MHz), higher conversion gain (10 dB), but requires +5 V and −5 V dual supplies; no integrated LO buffer.	Better suited for wideband lab instruments; unsuitable for single-supply portable or embedded receivers.	Select HMC774ALC3 only when multi-octave coverage and higher gain outweigh supply complexity and board area.
LT5560	Narrower RF range (30–4000 MHz, but optimized below 1 GHz), lower IP3 (19 dBm), 5 V single supply, integrated LO buffer, smaller 16-lead QFN (3×3 mm).	Lower-cost alternative for sub-1 GHz ISM or GPS front ends where 24 dBm IP3 is not required.	Choose LT5560 for cost-sensitive, space-constrained designs accepting 5 dB IP3 penalty and reduced high-frequency linearity.

Compared with HMC774ALC3 and LT5560, AD8344ACPZ-WP uniquely balances 400–1200 MHz bandwidth, 24 dBm IP3, single 5 V supply, and integrated LO driver - making it optimal for cellular infrastructure and high-performance ISM receivers where supply simplicity and distortion headroom are critical.

Availability

AD8344ACPZ-WP is available at Aetrix Electronics and suitable for cellular base station receivers, ISM-band instrumentation, and point-to-point radio links requiring stable component supply, long-term manufacturability, and guaranteed lot traceability.

Supply support for AD8344ACPZ-WP 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 Norwood, MA.

The AD8344ACPZ-WP belongs to Analog Devices' RF & Microwave Mixer product line, engineered specifically for high-linearity, low-noise receive-path downconversion in wireless infrastructure and instrumentation - emphasizing broadband operation, supply isolation, and external bias flexibility.

FAQ

What is the recommended external bias resistor value for AD8344ACPZ-WP in a typical cellular receiver design?

The standard RBIAS value for AD8344ACPZ-WP is 2.43 kΩ, connecting EXRB (Pin 10) to ground. This sets nominal mixer current, delivering 4.5 dB conversion gain, 24 dBm input IP3, and 8.5 dBm P1dB at 890 MHz. Using this value achieves optimal dynamic range while maintaining 84 mA total quiescent current at 5 V - validated in Analog Devices' Rev. A datasheet Table 2 and Figure 23.

Can AD8344ACPZ-WP operate with low-side LO injection, or is high-side LO mandatory?

AD8344ACPZ-WP is designed and characterized exclusively for high-side LO injection (fLO > fRF), as confirmed in the "AC Interfaces" section (Page 14) and functional block diagram. Its image rejection, noise figure, and conversion gain profiles assume fIF = fLO − fRF. Low-side operation (fIF = fRF − fLO) is not supported - attempting it degrades noise performance and violates the specified RF/LO frequency ranges.

How should the differential IF outputs (IFOP/IFOM) of AD8344ACPZ-WP be terminated to achieve specified conversion gain?

To achieve the datasheet-specified 4.5 dB conversion gain, AD8344ACPZ-WP's IFOP and IFOM pins must be differentially loaded with 200 Ω, as stated in the "IF Port" section (Page 14) and Figure 38. This is typically implemented using a 4:1 impedance-transforming balun (e.g., Mini-Circuits ADT1-1WT) or a differential amplifier like the AD8351 with shunt 200 Ω termination - not 50 Ω or open-circuit loads.

Does AD8344ACPZ-WP require external matching networks on its RF and LO ports?

No external matching is required on RFIN or LOIN for 50 Ω systems: both ports present 50 Ω impedance when properly ac-coupled (Page 14, "AC Interfaces"). However, RFCM (Pin 14) and LOCM (Pin 2) must connect to ground via low-inductance capacitors (≤330 pF ceramic), and RFIN/LOIN coupling capacitors must be sized to present negligible reactance at operating frequency - per Figure 37 and layout guidance.

What is the absolute maximum RF input level for AD8344ACPZ-WP, and what happens if exceeded?

The absolute maximum RF input level for AD8344ACPZ-WP is 12 dBm (Page 5, Table 3). Exceeding this risks permanent damage due to junction overheating or ESD overstress. At 8.5 dBm (P1dB), gain compresses by 1 dB; operation above this level increases distortion (IMD3, harmonics) and may cause irreversible degradation if sustained - always respect the 12 dBm absolute rating for reliability.

AD8344ACPZ-WP Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: AD8344

Package/Case:: 16-VFQFN Exposed Pad, CSP

Packaging:: Bulk

Product Status:: Active

RF Type:: Cellular, ISM

Frequency:: 400MHz ~ 1.2GHz

Number of Mixers:: 1

Gain:: 4.5dB

Noise Figure:: 10.5dB

Secondary Attributes:: Down Converter

Current - Supply:: 84mA

Voltage - Supply:: 4.75V ~ 5.25V

Mounting Type:: Surface Mount

Supplier Device Package:: 16-LFCSP-VQ (3x3)

AD8344ACPZ-WP FAQ

1.How can I place an order for AD8344ACPZ-WP through Aetrix?

Please submit a Request for Quotation (RFQ) for AD8344ACPZ-WP 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 AD8344ACPZ-WP reliable?

The price and inventory of AD8344ACPZ-WP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8344ACPZ-WP is usually 5 days.

3.What payment methods are accepted for AD8344ACPZ-WP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8344ACPZ-WP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AD8344ACPZ-WP?

AD8344ACPZ-WP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AD8344ACPZ-WP 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 AD8344ACPZ-WP?

For technical support, including AD8344ACPZ-WP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8344ACPZ-WP requirements.

6.How does Aetrix verify that AD8344ACPZ-WP is sourced from the original manufacturer or authorized distributors?

All AD8344ACPZ-WP 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 AD8344ACPZ-WP meets industry standards.

7.What is the process for return or replacement of AD8344ACPZ-WP?

All AD8344ACPZ-WP units undergo pre-shipment inspection (PSI). If there is an issue with AD8344ACPZ-WP, 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 AD8344ACPZ-WP part is unused and in its original packaging.

Return procedure for AD8344ACPZ-WP:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…