Pin-to-Pin LTC1668

JXD042 — 16-bit 50 MSPS DAC

JXD042 is a pin-to-pin compatible alternative to LTC1668. 16-bit 50 MSPS DAC. Medium-Speed DAC. Request free sample.

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Key Parameters

Product Category
Medium-Speed DAC
Resolution
16-bit
Sampling/Update Rate
50 MSPS
Channels
Single-channel
SFDR (typical)
80 dBc

Product Overview

The JXD042 is a 16-bit medium-speed DAC with parallel interface designed as a pin-compatible alternative to the LTC1668. It delivers 16-bit, 50 MSPS performance in a SOP28 package with Parallel CMOS interface, providing a fast China-based alternative path.

The JXD042 achieves SFDR of 80 dBc. Typical power consumption is <200mW, combined with -40°C to +85°C operating temperature range.

The JXD042 is part of our Medium-Speed DAC 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 LTC1668 Compatibility — Package, pins, and application circuits are compatible with LTC1668; existing PCBs require no redesign for fast China-based replacement/second sourcing.
16-bit, 50 MSPS Performance — High-performance converter core(s) meeting dynamic range and bandwidth needs of radar, medical, and communications applications.
High Performance — Optimized for demanding signal chain applications requiring low noise and high linearity.
Parallel CMOS Interface — Standardized digital interface for easy system integration and FPGA connectivity.
Low Power, Thermally Friendly — Typical power <200mW, 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 CategoryMedium-Speed DAC
Resolution16-bit
Update Rate50 MSPS
ChannelsSingle-channel
SFDR (typical)80 dBc
Digital InterfaceParallel CMOS
PackageSOP28
Typical Power Consumption<200mW
Operating Temperature-40°C to +85°C
CompatibilityP2P LTC1668
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 JXD042 is a pin-to-pin compatible alternative to the LTC1668, matching in resolution, sampling rate, interface, and package. Existing LTC1668-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.

50 MSPS
Sample/Update Rate
<200mW
Typical Power
P2P
LTC1668 Compatible

LTC1668 Performance

LTC1668 Performance. Weeks, Not Months. Why wait months for import supply when the JXD042 delivers comparable 16-bit Medium-Speed DAC performance in just 6 weeks?

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