AD5570

True Accuracy, 16-Bit ±12 V/±15 V, Serial Input Voltage Output DAC AD5570 FEATURES Full 16-bit performance 1 LSB max INL and DNL Output voltage range up to ±14 V On-board reference buffers, eliminating the need for a negative reference Controlled output during power-on Temperature range of −40°C to +85°C/−40°C to +125°C Settling time of 10 µs to 0.003% Clear function to 0 V www.DataSheet4U.com Asynchronous update of outputs (LDAC pin) Power-on reset Serial data output for daisy chaining Data readback facility FUNCTIONAL BLOCK DIAGRAM VSS VDD DGND AD5570 REFGND R R R POWER-ON RESET 16-BIT DAC VOUT AGND AGNDS R DAC REGISTER REFIN POWER-DOWN CONTROL LOGIC PD 03760-0-001 LDAC SHIFT REGISTER APPLICATIONS Industrial automation Automatic test equipment Process control Data acquisition systems General-purpose instrumentation SDIN SCLK SYNC SDO CLR Figure 1. GENERAL DESCRIPTION The AD5570 is a single 16-bit serial input, voltage output DAC that operates from supply voltages of ±12 V up to ±15 V. Integral linearity (INL) and differential nonlinearity (DNL) are accurate to 1 LSB. During power-up (when the supply voltages are changing), VOUT is clamped to 0 V via a low impedance path. The AD5570 DAC comes complete with a set of reference buffers. The reference buffers allow a single, positive reference to be used. The voltage on REFIN is gained up and inverted internally to give the positive and negative reference for the DAC core. Having the reference buffers on-chip e...