The MAX19693 12-bit, 4.0Gsps digital-to-analog converter (DAC) enables direct digital synthesis of high-frequency and wideband signals. The DAC has been optimized for wideband communications, radar, and instrumentation applications. The MAX19693 provides excellent spurious and noise performance and can be used for synthesis of wideband signals in the frequency range from DC to nearly 2GHz. The 4.0Gsps update rate enables digital synthesis of signals with more than 1.5GHz bandwidth.
The MAX19693 includes four 12-bit multiplexed low-voltage differential signaling (LVDS) input ports, each operating at up to 1GHz in double data rate (DDR) or quad data rate (QDR) mode. The DAC accepts a clock at 1/2 the DAC update rate, as conversion is triggered on both rising and falling clock edges. The input data rate is 1/4 the DAC update rate (1/2 the clock rate). The MAX19693 provides an LVDS data clock output to simplify interfacing to FPGA or ASIC devices.
The MAX19693 is a current-steering DAC with an integrated, self-calibrated 50Ω differential output termination to ensure optimum dynamic performance. The MAX19693 operates from 3.3V and 1.8V power supplies and consumes 1180mW at 4.0Gsps. The MAX19693 is specified over the extended temperature range (-40°C to +85°C) and is available in a compact 11mm x 11mm, 169 CSBGA package.
Key Features
Applications/Uses
4.0Gsps Output Update Rate
Industry-Leading Dynamic Performance
SFDR* = 76dBc at fOUT = 400MHz
SFDR* = 70dBc at fOUT = 800MHz
Wideband Noise Spectral Density = -164dBm/Hz
Low-Power Operation
770mW (fDAC = 2000Msps)
1180mW (fDAC = 4000Msps)
4:1 Multiplexed LVDS Inputs
Up to 1000Mwps each port
Internal 50Ω Differential Output Termination
Input Register Scan Mode for In-Circuit Continuity Verification
Compact 11mm x 11mm, 169 CSBGA Package
Evaluation Kit Available (Order MAX19693EVKIT)
Arbitrary Waveform Generators
Automatic Test Equipment
Digital IF Generation in X-Band Transmitters
Direct Digital Synthesis
Electronic Warfare
Radar Waveform and LO Signal Synthesis
Key Specifications:
High-Speed DACs
Part Number
Features
Resolution (Bits)
fCLK (Msps)
Number of Channels
SFDR @ fOUT (dBc)
INL (±LSB)
DNL (±LSB)
Output Current (mA)
PDISS (mW)
Interface
Supply Voltage (V)
MAX19693
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High SNR & Exceptional Gain Flatness in Nyquist Zone 1
