AK8419BVQ - 16-bit ADC Data Acquisition IC | AKM / LQFP
MPN: AK8419BVQ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.5 | $4.50 |
| 10 | $3.95 | $39.50 |
| 100 | $3.4 | $340.00 |
| 500 | $2.85 | $1,425.00 |
| 1,000 | $2.4 | $2,400.00 |
AK8419BVQ Overview
What is an ADC? An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts continuous analog voltages into discrete digital codes. The 16-bit ADC class sits within the broader hierarchy of data converters -> ADC/DAC -> interface/mixed-signal ICs -> semiconductor. Higher resolution ADCs (16-bit and above) are used when dynamic range, SNR, and DC accuracy are critical - for example weighing scales, precision sensors, audio front-ends, and industrial instrumentation. AKM has historically specialized in low-noise, high-linearity converters and audio DACs, and the AK8419BVQ is positioned in that family.
Key features of the AK8419BVQ include a 16-bit resolution data-acquisition front end, surface-mount LQFP packaging suitable for reflow assembly, RoHS compliance per distributor listings, and compatibility with standard AKM evaluation/reference designs. The part is supplied on Tape & Reel (TR) packaging to support high-volume automated assembly. Distributors confirm full reel packaging only, indicating it is intended for production volumes rather than prototype breadboarding.
Typical applications for the AK8419BVQ include precision sensor interfaces (load cells, strain gauges, thermocouple front-ends), industrial process-control data-acquisition modules, medical instrumentation signal chains, audio measurement and analysis equipment, and embedded test-and-measurement platforms requiring 16-bit dynamic range. Designers typically pair the part with a precision op-amp front-end and a low-noise reference to fully exploit its 16-bit resolution.
When designing with the AK8419BVQ, ensure the input common-mode voltage and reference architecture match the datasheet-recommended configuration. Adequate PCB layout - including a clean analog ground plane, decoupling capacitors near the supply pins, and short analog input traces - is critical to realize the full 16-bit accuracy. Refer to the manufacturer datasheet for full electrical characteristics, timing diagrams, and reference circuit recommendations.
This page synthesizes distributor pricing, pin/package information, application context, and design considerations that are not consolidated on any single manufacturer or distributor page.
Drop-in alternatives for AK8419BVQ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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AK8419BVQ
✅ Drop-In✓ In Stock
$2.4 / Unit
View Datasheet →AK8419BVQ Maximum Ratings & Electrical Characteristics
| Manufacturer | Asahi Kasei Microdevices (AKM) |
| Manufacturer Part Number | AK8419BVQ |
| Function | 16-bit Analog-to-Digital Converter (Data Acquisition ADC) |
| Resolution | 16 bit |
| Category | Integrated Circuits (ICs) - Data Acquisition - ADC |
| Package / Case | LQFP (LQFP per distributor listings) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (TR) |
| RoHS Status | Compliant |
| Lead Free Status | Lead Free / RoHS Compliant |
AK8419BVQ lqfp (lqfp per distributor listings) Pin Configuration Guide
Pin configuration for AK8419BVQ (lqfp (lqfp per distributor listings) package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for AK8419BVQ.
Refer to the datasheet for full pin configuration.
Typical Applications
AK8419BVQ is suitable for 6 applications: Precision Sensor Signal Chain, Industrial Process-Control Data Acquisition Module, Medical Instrumentation Front-End, Audio Test and Measurement Equipment, Embedded Data-Acquisition / DAQ Card, Precision Weighing and Force Measurement.
Precision Sensor Signal Chain
The AK8419BVQ's 16-bit resolution and AKM precision-converter heritage make it well suited to digitizing low-level analog outputs from bridge-type sensors such as load cells, strain gauges, and pressure transducers. In a typical signal chain the AK8419BVQ is placed after a low-noise instrumentation amplifier (e.g., AD8421-class or AKM's own analog front-ends) and a precision bandgap reference; the ADC then quantizes the amplified sensor signal to 16-bit codes for downstream MCU or DSP processing. Compared with 12/14-bit alternatives, the 16-bit AK8419BVQ provides ~12 dB extra dynamic range, which directly improves weighing-scale resolution and strain-gauge measurement accuracy. PCB layout must keep analog input traces short and the analog ground plane unbroken to realize the full 16-bit ENOB in real-world conditions. Pair with a low-drift voltage reference (e.g., ADR45xx series) for best DC accuracy.
Recommended
Industrial Process-Control Data Acquisition Module
In industrial PLC and distributed I/O modules, the AK8419BVQ serves as the data-acquisition ADC for analog input channels measuring 4-20 mA / 0-10 V process variables. Its 16-bit code width delivers ~65,536 steps across the input range, providing the resolution needed for tight process-control loops in chemical, water-treatment, and factory-automation plants. The LQFP surface-mount package is compatible with automated SMT lines used in industrial module manufacturing, and the Tape & Reel packaging supports high-volume assembly. A typical implementation places the AK8419BVQ behind a multi-channel analog multiplexer (e.g., MUX36S08-class) with per-channel input protection, sharing one precision ADC across 4-8 process variables. Designers should include RC filtering and TVS protection on each analog input for IEC 61000-4 immunity in harsh industrial environments.
Recommended
Medical Instrumentation Front-End
The AK8419BVQ's 16-bit precision and AKM medical-grade signal-chain reputation make it a candidate for digitizing low-frequency physiological signals in patient-monitoring and diagnostic instruments such as ECG, SpO2, and body-composition analyzers. The 16-bit dynamic range is sufficient to resolve the small mV-level ECG signals after instrumentation-amp gain, while the LQFP package keeps the analog front-end compact on dense medical PCBs. Designers pairing the AK8419BVQ with AKM audio DACs in the same chassis benefit from the manufacturer ecosystem, simplifying EMI and PSRR optimization. IEC 60601-1 isolation, patient-leakage, and defibrillator-proof protection networks must be implemented upstream of the ADC; the AK8419BVQ handles only the conversion stage.
Recommended
Audio Test and Measurement Equipment
For audio analyzers, loudspeaker test systems, and acoustic measurement rigs, the AK8419BVQ's 16-bit resolution supports analysis-band dynamic range sufficient for production-line audio testing. AKM is a recognized leader in audio conversion, and pairing the AK8419BVQ with AKM's audio DAC family creates a coherent vendor ecosystem with matched reference designs, layout guidelines, and grounding recommendations. In a typical audio test fixture the AK8419BVQ digitizes the output of a Device-Under-Test amplifier or DAC-reconstruction filter, while a companion AKM DAC generates the stimulus signal - enabling single-vendor support. For higher dynamic range (e.g., 24-bit audio test gear), the AK8419BVQ should be paired with a higher-resolution ADC; for production-line audio QA the 16-bit code width is typically sufficient.
Recommended
Embedded Data-Acquisition / DAQ Card
The AK8419BVQ is well suited as the converter IC on PCI/PCIe/USB-based DAQ cards and embedded single-board-computer analog input shields used in laboratory automation and university research. Its 16-bit resolution and LQFP package allow compact card designs that fit standard 3U/6U Eurocard or 100x100 mm embedded form factors. Engineers building MATLAB/LabVIEW-compatible DAQ front-ends can pair the AK8419BVQ with a host MCU (STM32, MSP430, or similar) over SPI or parallel interface, then stream 16-bit samples over USB or Ethernet to the host PC. The Tape & Reel packaging supports high-volume card manufacturing for OEM industrial PCs and embedded instrument vendors. Pin count and digital-interface details must be confirmed from the AKM datasheet before schematic capture.
Recommended
Precision Weighing and Force Measurement
In electronic weighing scales, force-test fixtures, and load-monitoring systems, the AK8419BVQ's 16-bit resolution provides the measurement headroom required to resolve small weight increments across a wide dynamic range - from grams to kilograms - when paired with a load cell and instrumentation amplifier. The combination of 16-bit ADC code width and a low-noise analog front-end yields the count-per-gram linearity that commercial scales require. A typical schematic places the AK8419BVQ behind an instrumentation amplifier (e.g., AD8421 or AKM equivalent), with a low-drift reference (ADR45xx family) and matched RC filtering for EMI immunity. Calibration is performed in software using known calibration masses; the AK8419BVQ's linearity supports the 0.01% class typically required in legal-for-trade weighing instruments when properly designed.
Recommended
Recommended Products Summary
Engineering reference data for AK8419BVQ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AK8419BVQ | ADS8318IDRCR | AD7683ACPZRL |
|---|---|---|---|---|
| Brand | Asahi Kasei Microdevices (AKM) | AKM (same - reference) | Texas Instruments | Analog Devices |
| Package | LQFP (AKM 'VQ' suffix) | LQFP - same | MSOP-10 (different) | LFCSP-8 (different) |
| Resolution | 16 bit | 16 bit | 16 bit (also supports 14-bit mode) | 16 bit |
| RoHS / Lead-Free | Compliant (per IC-Components) | Compliant | Compliant | Compliant |
| Packaging Format | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
Key Differentiators
- Single-vendor AKM precision mixed-signal ecosystem (vs ADS8318IDRCR)
- LQFP surface-mount package (vs AD7683ACPZRL)
- RoHS/lead-free compliant per distributor listings (vs Generic 16-bit ADC from legacy stock)
Design Notes
Place the AK8419BVQ analog input traces as short and direct as possible, ideally within 5 mm of the input amplifier output. Use a continuous, unbroken analog ground plane beneath the ADC to minimize ground bounce; avoid splitting the analog and digital grounds - use a single ground plane with the ADC ground pin as the star-point. Decouple the analog supply rail with a 10 uF tantalum or ceramic bulk capacitor plus a 0.1 uF X7R ceramic placed within 3 mm of each analog supply pin. Keep digital interface traces (SPI/clock) routed away from analog input traces and cross them at 90 degrees if necessary. Following these PCB layout practices is essential to realize the full 16-bit ENOB the AK8419BVQ architecture can deliver.
Power the AK8419BVQ from a low-noise LDO (e.g., ADP7118 or TPS7A47-class) rather than directly from a switching converter, because switching ripple above 100 kHz aliases into the ADC's baseband and degrades SNR. Add a ferrite bead or pi-filter between the switching pre-regulator and the ADC LDO to attenuate switching-frequency ripple. Hold the analog and digital supply domains separate at the regulator stage, joining them only at the ADC's AGND/DGND pins. For multi-channel designs, sequence the supplies so the reference voltage stabilizes before the ADC begins conversion to avoid start-up glitches in the first conversion frame.
Do not assume 16-bit resolution equals 16-bit accuracy - INL, DNL, gain error, and offset error all contribute, and the AK8419BVQ must be calibrated against a known precision reference at production. Avoid driving the analog input beyond the datasheet absolute-maximum range, including during power-up transients when upstream analog muxes may momentarily pass full-scale inputs. Place input-protection clamp diodes (or TVS arrays) at the connector boundary, not at the ADC pin, so ESD events are absorbed before reaching the converter front-end. Finally, verify the digital interface voltage levels match the host MCU - many AKM precision ADCs use 3.3 V logic; level-shifters are required if the host runs at 1.8 V or 5 V.
Compliance Information
RoHS and lead-free compliance confirmed by IC-Components.nl distributor listing. AEC-Q100 status not published on distributor pages - consult AKM for automotive-grade qualification. Halogen-free and conflict-minerals status not available in current data - request from AKM if required.
