Signal-chain fit for the 10-bit parallel bus
The AD9740ARUZ is a 10-bit current-output DAC from the TxDAC series, built on a current source architecture with differential output capability. It accepts parallel data at its digital interface, making it a direct fit for systems where the host controller or FPGA already drives a parallel bus — no serial protocol overhead. The 11 ns typical settling time supports update rates into the tens of megahertz, enough for waveform generation in arbitrary function generators or baseband I/Q modulation paths where the DAC's output drives an external I/V conversion stage.
Supply rails and temperature grade
The part is active in production and ROHS3 compliant, so there is no end-of-life pressure for current designs.
Linearity and output architecture
INL and DNL are specified at ±0.15 LSB and ±0.12 LSB respectively — both well within 0.5 LSB, so the DAC is monotonic by design and the transfer curve stays linear across the full 10-bit range without missing codes. Because the output is current-unbuffered and differential, the external circuit must provide a transimpedance amplifier or resistor network to convert the current to a voltage. The unbuffered output also means the DAC's output impedance is high, so the load resistor value directly sets the voltage swing.