AD5546

Data Sheet Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with Four-Quadrant Resistors AD5546/AD5556 FEATURES 16-bit resolution 14-bit resolution 2- or 4-quadrant multiplying DAC ±1 LSB DNL ±1 LSB INL Operating supply voltage: 2.7 V to 5.5 V Low noise: 12 nV/√Hz Low power: IDD = 10 μA 0.5 μs settling time Built-in RFB facilitates current-to-voltage conversion Built-in 4-quadrant resistors allow 0 V to –10 V, 0 V to +10 V, or ±10 V outputs 2 mA full-scale current ±20%, with VREF = 10 V Automotive operating temperature: –40°C to +125°C Compact TSSOP-28 package APPLICATIONS Automatic test equipment Instrumentation Digitally controlled calibration Digital waveform generation FUNCTIONAL BLOCK DIAGRAM R1 RCOM REF ROFS R1 R2 ROFS RFB RFB VDD WR LDAC DB0 TO DB15 AD5546/ AD5556 CONTROL LOGIC DAC 16/14 DAC REGISTER IOUT GND POR 03810-001 MSB RS Figure 1. AD5546/AD5556 Simplified Block Diagram GENERAL DESCRIPTION The AD5546/AD5556 are precision 16-/14-bit, multiplying, low power, current output, parallel input digital-to-analog converters (DACs). They operate from a single 2.7 V to 5.5 V supply with ±10 V multiplying references for four-quadrant outputs. Builtin four-quadrant resistors facilitate the resistance matching and temperature tracking that minimize the number of components needed for multiquadrant applications. The feedback resistor (RFB) simplifies the I-V conversion with an external buffer. The AD5546/AD5556 are packaged in compact TSSOP-28 packages...