AD9857

PRODUCTION

CMOS 200 MSPS 14-Bit Quadrature Digital Upconverter

Analog Devices AD9857 Product Info

10 February 2026 6

Features

200 MHz internal clock rate
14-bit data path
Excellent dynamic performance: 80 dB SFDR @ 65 MHz (±100 kHz) A_OUT
4× to 20× programmable reference clock multiplier
Reference clock multiplier PLL lock detect indicator
Internal 32-bit quadrature DDS

FSK capability
8-bit output amplitude control
Single-pin power-down function
Four programmable, pin-selectable signal profiles
SIN(x)/x correction (inverse SINC function)
Simplified control interface 10 MHz serial, 2-wire or 3-wire SPI^®-compatible

Part details & applications

The AD9857 integrates a high speed direct digital synthesizer (DDS), a high performance, high speed, 14-bit digital-to-analog converter (DAC), clock multiplier circuitry, digital filters, and other DSP functions onto a single chip, to form a complete quadrature digital upconverter device. The AD9857 is intended to function as a universal I/Q modulator and agile upconverter, single-tone DDS, or interpolating DAC for communications applications, where cost, size, power dissipation, and dynamic performance are critical attributes.

The AD9857 offers enhanced performance over the industry-standard AD9856, as well as providing additional features.

The AD9857 is available in a space-saving, surface-mount package and is specified to operate over the extended industrial temperature range of −40°C to +85°C.

APPLICATIONS

HFC data, telephony, and video modems
Wireless base station
Agile, LO frequency synthesis
Broadband communications

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