Product Details
●The AD5790 1 is a single 20-bit, voltage out Dac that operates from a bipolar supply up to 33V. Reference buffers are also provided on-chip The AD5790 accepts a positive reference input in the range of 5V to VDD – 2.5V and a negative reference input in the range of VSS + 2.5v to 0V. The AD5790 offers a relative accuracy of +/-2 LSB"s max and operation is guaranteed monotonic with a -1 LSB to +3 LSB"s DNL specification.
●The part uses a versatile 3-wire serial interface that operates at clock rates up to 35 MHz and is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0V and in a known output impedance state and remains in this state until a valid write to the device takes place. The part provides a disable feature that places the output in a defined load state.
●1Protected by U.S. Patent No. 7,884,747 and 8,089,380
●Product Highlights
● 1. 20-bit resolution
● 2. Wide power supply range of up to ±16.5 V.
● 3. −40°C to +125°C operating temperature range.
● 4. Low 8 nV/√Hz noise.
● 5. Low ±0.018 ppm/°C gain error temperature coefficient.
●Applications
● Medical instrumentation
● Test and measurement
● Industrial control
● Scientific and aerospace instrumentation
● Data acquisition systems
● Digital gain and offset adjustment
● Power supply control
●### Features and Benefits
● Single 20-bit voltage output DAC, ±2 LSB INL
● 8 nV/√Hz output noise spectral density
● 0.1 LSB long term linearity error stability
● ±0.018 ppm/°C gain error temperature coefficient
● 2.5 µs output voltage settling time
● 3.5 nV-sec midscale glitch impulse
● Integrated Precision Reference Buffers
● Operating temperature range: −40°C to +125°C
● 4mm x 5mm LFCSP package
● Wide power supply range of up to ±16.5 V
● 35 MHz Schmitt-triggered digital interface
● 1.8 V compatible digital interface
