Pin-to-Pin ADS1278

JXA040 — 24-bit 144 KSPS 8-Channel Σ-Δ ADC

JXA040 is a pin-to-pin compatible alternative to ADS1278. 24-bit 144 KSPS 8-Channel Σ-Δ ADC. Precision ADC. Request free sample.

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Key Parameters

Product Category
Precision ADC
Resolution
24-bit
Sampling/Update Rate
144 KSPS
Channels
8-channel
SNR (typical)
108 dBFS
SFDR (typical)
115 dBc

Product Overview

The JXA040 is a 24-bit 8-channel sigma-delta precision ADC designed as a pin-compatible alternative to the ADS1278. It combines 24-bit, 144 KSPS, 8-channel in a single TQFP-64 package with SPI interface, providing a fast China-based alternative path.

The JXA040 achieves typical SNR of 108 dBFS and SFDR of 115 dBc. Typical power consumption is <120mW per channel, combined with -40°C to +85°C operating temperature range.

The JXA040 is part of our Precision ADC product portfolio, offering both performance and availability advantages. Standard lead time is approximately 6 weeks, with complete reference designs, application support, and schematic review services to help customers quickly complete China-based replacement or second-source introduction.

Key Features

Pin-to-Pin ADS1278 Compatibility — Package, pins, and application circuits are compatible with ADS1278; existing PCBs require no redesign for fast China-based replacement/second sourcing.
24-bit, 144 KSPS 8-channel Performance — 8-channel converter core(s) meeting dynamic range and bandwidth needs of radar, medical, and communications applications.
Excellent Dynamic Range — SNR 108 dBFS, SFDR 115 dBc (typical), accurately capturing target signals even in the presence of strong interferers.
SPI Interface — Standardized digital interface for easy system integration and FPGA connectivity.
Low Power, Thermally Friendly — Typical power <120mW per channel, suitable for dense multi-channel array deployment.
Rich On-Chip Features — Integrated programmable gain, offset adjustment, built-in test patterns, accelerating system integration.
6-Week Standard Lead Time — Standard lead time ~6 weeks, dramatically reducing waiting risk and supply chain uncertainty.
Direct FAE Support — FPGA integration, board design review, clock solution recommendations.

Full Specifications

Product CategoryPrecision ADC
Resolution24-bit
Sampling Rate144 KSPS
Channels8-channel
SNR (typical)108 dBFS
SFDR (typical)115 dBc
Digital InterfaceSPI
PackageTQFP-64
Typical Power Consumption<120mW per channel
Operating Temperature-40°C to +85°C
CompatibilityP2P ADS1278
Lead Time~6 weeks

Application Areas

Communications Systems — Multi-carrier receivers, base station transceivers, software-defined radio
Radar & Defense — Pulse-Doppler radar, phased-array receivers, electronic support measures (ESM)
Medical Imaging — Ultrasound frontends, MRI RF sampling, digital X-ray detectors
Industrial Automation — High-speed data acquisition, condition monitoring, power quality analysis
Test & Measurement — Data acquisition systems (DAQ), oscilloscopes, signal analyzers
Aerospace & Avionics — Flight control, satellite ground stations, navigation receivers

Model Comparison

The JXA040 is a pin-to-pin compatible alternative to the ADS1278, matching in resolution, sampling rate, interface, and package. Existing ADS1278-based designs can rapidly complete China-based replacement with minimal software and hardware changes. We recommend small-batch sample verification before mass production; our FAE team provides full technical support.

144 KSPS
Sample/Update Rate
<120mW per channel
Typical Power
P2P
ADS1278 Compatible

ADS1278 Performance

ADS1278 Performance. Weeks, Not Months. Why wait months for import supply when the JXA040 delivers comparable 24-bit Precision ADC performance in just 6 weeks?

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