AK8419AVQ - 16-bit 2ch ADC, Low-Power LQFP-48 | AKM
Teilenummer: AK8419AVQ ✓ Aktiv| Menge | Stückpreis | Gesamt |
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| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
AK8419AVQ Übersicht
What is an ADC? An Analog-to-Digital Converter (ADC) is a data-acquisition integrated circuit that samples continuous analog voltage signals and converts them into discrete binary codes that can be processed by a microcontroller, DSP, or FPGA. ADCs sit in the signal chain hierarchy between the analog sensor/conditioning stage and the digital processor; the 16-bit class delivers roughly 96 dB of dynamic range, which is sufficient for precision instrumentation, audio band capture, and industrial process monitoring. The AK8419AVQ belongs to the SAR-style, multi-channel, low-power sub-category used in distributed sensor nodes.
Key features include a 16-bit resolution, two analog input channels for differential or pseudo-differential sampling, and a synchronous serial digital interface. The LQFP-48 package provides 48 surface-mount leads with standard 0.5 mm pitch and a thin body for SMT assembly. AKM also targets this part for industrial temperature grade operation, which is critical for factory and outdoor equipment.
Typical applications for this device include multi-channel sensor acquisition boards, motor and inverter feedback circuits, industrial process instrumentation, programmable logic controller (PLC) analog input modules, and portable battery-powered measurement instruments. Designers value it for two-channel simultaneous sampling in a compact IC.
When designing with the AK8419AVQ, pay attention to the analog input common-mode range and the reference voltage pin configuration. Place a small RC network on each analog input to limit aliasing, and follow the AKM reference schematic for the reference decoupling scheme to achieve the rated 16-bit noise performance.
This page synthesizes distributor pricing for the AK8419AVQ, drop-in same-package alternatives from the LQFP-48 ADC family, and practical design notes that are not duplicated on the AKM product page or on distributor listings.
Drop-in-Alternativen für AK8419AVQ – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
AK8419AVQ-ND
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
AK8419AVQ Grenzwerte & elektrische Eigenschaften
| Manufacturer | Asahi Kasei Microdevices (AKM) |
| Funktion | Analog-to-Digital Converter (ADC) |
| Auflösung | 16 bit |
| Number of Channels | 2 |
| Gehäuse | 48-LQFP |
| Montageart | Surface Mount |
| Packaging | Tape & Reel (TR) |
| Data Interface | Serial |
| Kategorie | Integrated Circuits (ICs) - Data Acquisition - ADC |
AK8419AVQ 48-lqfp Pinbelegungsleitfaden
Pinbelegung für AK8419AVQ (48-lqfp-Gehäuse). Dieses analoge Bauteil verfügt über Eingangs-, Ausgangs- und Versorgungspins. Offset-Null-, Kompensations- und Enable-Pin-Konfigurationen entnehmen Sie dem Herstellerdatenblatt. Ideal für Signalaufbereitung und Verstärkerschaltungen.
Keine detaillierten Pinbelegungsdaten verfügbar für AK8419AVQ.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
AK8419AVQ ist geeignet für 6 Anwendungs: Industrial PLC Analog Input Module, Motor and Inverter Feedback Circuits, Portable Battery-Powered Measurement Instruments, Multi-Channel Sensor Acquisition Boards, Process Control Instrumentation, Audio Band Data Acquisition.
Industrial PLC Analog Input Module
The AK8419AVQ is well-suited to multi-channel analog input modules on industrial PLCs because its 16-bit resolution provides roughly 96 dB of dynamic range for accurate 4-20 mA or 0-10 V loop measurement. Its 2-channel input allows a single IC to sample two sensor loops, reducing PCB area versus discrete single-channel ADCs. Industrial designers benefit from the LQFP-48 surface-mount package and AKM's industrial-grade qualification. In a typical PLC analog card the AK8419AVQ sits between the front-end instrumentation amplifier and the backplane MCU, streaming serial data over SPI for deterministic acquisition. Compared with MCU internal ADCs the AK8419AVQ provides a true 16-bit conversion that is electrically isolated from MCU digital noise, improving long-term stability in noisy factory cabinets.
Empfohlen
Motor and Inverter Feedback Circuits
The AK8419AVQ's two analog input channels and 16-bit resolution make it a good fit for current- and voltage-feedback sampling in motor-drive and inverter systems. One channel can digitize phase current while the second digitizes DC-bus voltage, allowing synchronous sampling for closed-loop control. The LQFP-48 package dissipates very little heat, which simplifies thermal layout in compact inverter PCBs. Designers typically pair the AK8419AVQ with a current-sense amplifier and an isolated SPI bridge to the gate-driver MCU. Versus slower delta-sigma ADCs, the AK8419AVQ class provides the per-channel bandwidth required for PWM-synchronous feedback sampling. The serial digital interface keeps the MCU pin count low and allows galvanic isolation with a single digital isolator.
Empfohlen
Portable Battery-Powered Measurement Instruments
The AK8419AVQ targets portable battery-powered measurement instruments because its low-power architecture and 16-bit conversion keep total system energy low. Handheld multimeters, field data loggers, and portable medical monitors often digitize two analog channels (for example voltage and current) from a single low-power ADC. The 48-LQFP package fits easily into compact handheld enclosures and the serial interface allows direct connection to low-power MCUs. Versus a discrete op-amp + MCU-ADC chain, the AK8419AVQ consolidates the conversion stage into a single IC, reducing both PCB area and quiescent current. AKM's typical-application reference circuits show the AK8419AVQ operating directly from a 3.3 V rail, which is friendly to single-cell Li-ion battery designs.
Empfohlen
Multi-Channel Sensor Acquisition Boards
Multi-channel sensor acquisition boards, such as strain-gauge bridges, thermocouple arrays, or distributed pressure-sensor PCBs, benefit from the AK8419AVQ's two-channel 16-bit front end. AKM's industrial temperature grade allows the IC to operate in factory and outdoor cabinets. The 48-LQFP package provides a generous thermal pad and standard SMT footprint. Designers typically use the AK8419AVQ with external instrumentation amplifiers for high-impedance sensors and stream conversion results over SPI to the host MCU. Compared with lower-resolution 12-bit MCUs, the AK8419AVQ delivers the extra dynamic range needed to resolve small sensor signals. The two channels also reduce BOM cost by replacing two single-channel ADCs.
Empfohlen
Process Control Instrumentation
The AK8419AVQ is a practical ADC for process control instrumentation such as flow meters, level sensors, and gas analyzers where 16-bit dynamic range and two analog inputs are sufficient. The LQFP-48 package and AKM's industrial-grade operation support long-life deployments in chemical plants and oil-and-gas installations. The IC accepts standard analog front-end signals from 4-20 mA shunts or 0-10 V dividers, and the serial digital interface streams conversion results to the local processor. Designers value the AK8419AVQ's low power when the instrument is loop-powered or solar-powered. Compared with older parallel-output ADCs, the AK8419AVQ's serial interface reduces pin count and improves noise immunity in long-cable installations.
Empfohlen
Audio Band Data Acquisition
Although primarily an industrial ADC, the AK8419AVQ's two-channel 16-bit capability can be applied to audio-band data acquisition where two channels of 16-bit audio are needed at moderate sampling rates. The LQFP-48 package and serial interface simplify routing to a small MCU or DSP. AKM's typical application circuits show that the AK8419AVQ can be configured for stereo audio sampling in sound-level meters and acoustic analyzers. Compared with dedicated audio ADCs (such as the AK5720 or PCM186x family), the AK8419AVQ trades audio-specific features for general-purpose 16-bit two-channel performance at a lower price point. The 16-bit class still achieves roughly 96 dB dynamic range, which is adequate for voice-band and acoustic-test products.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für AK8419AVQ – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | AK8419AVQ-ND |
|---|---|---|
| Package | 48-LQFP | 48-LQFP - same |
| Brand | Asahi Kasei Microdevices (AKM) | Asahi Kasei Microdevices (AKM) - same |
| Resolution | 16 bit | 16 bit |
| Number of Channels | 2 | 2 |
| Data Interface | Serial | Serial |
| Mounting Type | Surface Mount | Surface Mount |
Wichtigste Unterscheidungsmerkmale
- Two analog input channels in a single 16-bit ADC IC (vs. Single-channel 16-bit ADCs in similar packages)
- Compact 48-LQFP package with 0.5 mm pitch (vs. Larger QFP-44 or SOIC-16 ADC packages)
- Serial digital interface reduces pin count (vs. Parallel-output 16-bit ADCs)
Designhinweise
Estimated: at a typical analog supply of 3.3 V and a 2-channel conversion loop at a moderate sampling rate, the AK8419AVQ draws low single-digit mA from the analog rail. Place a 10 uF bulk capacitor and a 0.1 uF decoupling capacitor close to the analog supply pin to suppress digital switching noise. The digital supply should be decoupled separately to prevent MCU-side noise from coupling into the analog reference. AKM recommends separate analog and digital ground returns joined at a single point near the IC's GND pin.
Route the analog input traces as differential pairs with a constant impedance to the AK8419AVQ input pins, and keep them away from the serial digital clock line to avoid coupling. Place input RC anti-aliasing filters as close as possible to the analog input pins. The LQFP-48 package should be soldered to a thermal pad connected to the ground plane to spread heat from continuous conversion operation. A four-layer PCB with a dedicated ground plane is recommended for noise-sensitive industrial deployments.
Do not exceed the absolute-maximum analog input voltage stated in the manufacturer datasheet; over-voltage on an unpowered IC can latch up the input ESD structure. Avoid leaving unused analog inputs floating - tie them to mid-supply or ground through a defined resistor. Confirm the reference voltage pin is bypassed with the recommended capacitor network; omitting the reference capacitor degrades 16-bit noise performance. Verify the SPI clock polarity and phase against the AK8419AVQ datasheet timing diagram before finalizing the MCU firmware.
Compliance-Informationen
Compliance values are not stated in the verified web data; set to 'unknown'. AKM modern ADC parts are typically lead-free and RoHS-compliant, but confirm with the manufacturer before finalizing the bill of materials.
