MAX7042ATJ+ Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
Analog Devices MAX7042ATJ+ is a high-sensitivity IF receiver IC covering 300 MHz to 450 MHz, designed for AM/ASK and FSK demodulation in short-range wireless applications. Integrated low-noise amplifier, mixer, and data slicer simplify receiver design in a compact 28-pin TQFN package.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- MAX7042ATJ+ Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX7042ATJ+?
- IF receiver covering 300 MHz to 450 MHz for ISM band short-range wireless systems
- Integrated LNA, mixer, IF amplifier, and data slicer for simplified single-chip ASK/FSK receiver design
- Low supply current operation for battery-powered remote control and sensor applications
- 28-pin TQFN package with exposed paddle for compact PCB layout and improved thermal dissipation
- High receiver sensitivity enables reliable link margin in sub-GHz wireless communication designs
What is MAX7042ATJ+ used for?
The MAX7042ATJ+ is used in short-range wireless receiver systems operating in the 315 MHz, 433 MHz, and 868/915 MHz ISM bands for remote keyless entry, garage door openers, and home automation controllers. Its integrated IF receiver chain demodulates ASK and FSK signals without requiring external IF filtering components, reducing BOM cost and PCB area in consumer wireless sensor nodes and industrial telemetry receivers. The 28-pin TQFN package makes it suitable for space-constrained wireless module designs targeting building automation, smart metering, and asset tracking applications.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the MAX7042ATJ+ datasheet?
MAX7042ATJ+ Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for MAX7042ATJ+?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What frequency range does the MAX7042ATJ+ cover, and which ISM sub-bands does it support?
The MAX7042ATJ+ operates across 300 MHz to 450 MHz, directly supporting the major ISM sub-bands including 315 MHz used in North American remote controls, 433.92 MHz used in European and global short-range devices, and adjacent frequencies within this range. This wide coverage allows a single receiver IC to serve multiple regional regulatory bands, simplifying product variants for global wireless system designs.
How does MAX7042ATJ+'s integrated receiver chain reduce external component count compared to discrete IF receiver designs?
MAX7042ATJ+ integrates the LNA, mixer, IF amplifier chain, data slicer, and clock recovery into a single 28-pin TQFN die, eliminating the need for external SAW filters, IF transformers, and separate comparator ICs typically required in discrete 300 MHz to 450 MHz ASK receiver designs. This integration reduces external component count by approximately 15 to 20 parts, shrinks PCB area, and lowers assembly costs in high-volume consumer and industrial wireless modules.
Which wireless receiver applications benefit most from MAX7042ATJ+'s sensitivity and demodulation architecture?
Remote keyless entry systems, wireless alarm sensors, smart meters, garage door receivers, and industrial telemetry nodes operating in the 315 MHz and 433 MHz ISM bands gain the most from MAX7042ATJ+'s high sensitivity and integrated ASK/FSK demodulation. The chip's low noise figure allows reliable reception at distances exceeding 100 meters in open-field conditions, while its 28-pin TQFN package fits the compact PCB layouts required in battery-powered handheld and wall-mounted receiver modules.
What key electrical parameters should be verified when designing MAX7042ATJ+ into a 433 MHz ASK receiver application?
Designers should verify the MAX7042ATJ+ local oscillator frequency, typically set 10.7 MHz above or below the 433.92 MHz carrier using an external crystal, and confirm the IF bandwidth accommodates the data rate of the ASK signal. Supply voltage of 2.4 V to 5.5 V should be matched to the system regulator, and the 28-pin TQFN exposed paddle must be soldered to a ground plane for proper thermal management at ambient temperatures up to 85°C in the final application.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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