AD9914S

RECOMMENDED FOR NEW DESIGNS

3.5 GPSP Direct Digital Synthesizer with 12-Bit DAC

Analog Devices AD9914S Product Info

10 February 2026 5

Features

3.5 GSPS internal clock speed
Integrated 12-bit DAC
Frequency tuning resolution to 190 pHz
16-bit phase tuning resolution
12-bit amplitude scaling
Programmable modulus
Automatic linear and nonlinear frequency sweeping capability
32-bit parallel datapath interface
8 frequency/phase offset profiles
Phase noise: −128 dBc/Hz (1 kHz offset at 1396 MHz)
Wideband SFDR < −50 dBc
Serial or parallel input/output control
1.8 V/3.3 V power supplies
Software and hardware controlled power-down
88-lead LFCSP package
PLL REF CLK multiplier
Phase modulation capability
Amplitude modulation capability

COMMERCIAL SPACE FEATURES

Supports aerospace applications
Wafer diffusion lot traceability
Radiation lot acceptance test (RLAT)
- Total ionizing dose (TID)
Radiation benchmark
- Single event latch-up (SEL)

Part details & applications

The AD9914S-CSL is a direct digital synthesizer (DDS) featuring a 12‑bit digital-to-analog converter (DAC). The AD9914S-CSL uses advanced DDS technology, coupled with an internal high speed, high performance DAC to form a digitally programmable, complete high frequency synthesizer capable of generating a frequency-agile analog output sinusoidal waveform at up to 1.4 GHz. The AD9914S-CSL enables fast frequency hopping and fine tuning resolution (64‑bit capable using programmable modulus mode). The AD9914S-CSL also offers fast phase and amplitude hopping capability. The frequency tuning and control words are loaded into the AD9914S-CSL via a serial or parallel input/output port. The AD9914S-CSL also supports a user defined linear sweep mode of operation for generating linear swept waveforms of frequency, phase, or amplitude. A high speed, 32-bit parallel data input port is included, enabling high data rates for polar modulation schemes and fast reprogramming of the phase, frequency, and amplitude tuning words.

The AD9914S-CSL is specified to operate over the extended industrial temperature range (see the Absolute Maximum Ratings section in the data sheet). Additional application and technical information can be found in the Commercial Space Products Program brochure and the AD9914 data sheet.

APPLICATIONS

Low Earth orbit (LEO) space payloads
Agile LO frequency synthesis
Programmable clock generators
FM chirp source for radar and scanning systems
Test and measurement equipment
Acousto-optic device drivers
Polar modulators
Fast frequency hopping

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