数模转换器- DAC 18-Bit VOut +/-0.5 LSB INL
Product Details
The AD5781 is a single 18-bit, unbuffered voltage-output DAC that operates from a bipolar supply of up to 33 V. The AD5781 accepts a positive reference input in the range 5V to VDD – 2.5 V and a negative reference input in the range VSS \+ 2.5 V to 0 V. The AD5781 offers a relative accuracy specification of ±0.5 LSB max, and operation is guaranteed monotonic with a ±0.5 LSB DNL max specification.
The part uses a versatile 3-wire serial interface that operates at clock rates up to 35 MHz and that 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 0 V and in a known output impedance state and remains in this state until a valid write to the device takes place. The part provides an output clamp feature that places the output in a defined load state.
Product Highlights
1. True 18-Bit Accuracy.
2. Wide Power Supply Range of Up to ±16.5 V.
3. −40°C to +125°C Operating Temperature Range.
4. Low 7.5 nV/√Hz Noise.
5. Low 0.05 ppm/°C Temperature Drift.
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 18-bit DAC, ± 0.5 LSB INL
- .
- 7.5nV/√Hz Noise Spectral Density
- .
- 0.05 LSB Long Term Linearity Stability
- .
- < 0.05-ppm/°C Temperature Drift
- .
- 1μs Settling Time
- .
- 1.4 nV-sec glitch impulse
- .
- Operating temperature range: -40°C to 125°C
- .
- 20-Lead TSSOP Package
- .
- Wide Power Supply range up to ±16.5V
- .
- 35 MHz Schmitt triggered Digital Interface
- .
- 1.8 V compatible digital interface
AD5781-EP supports defense and aerospace applications AQEC standard
- .
- Download the AD5781-EP Data Sheet pdf
- .
- Military temperature range −55°C to +125°C
- .
- Controlled manufacturing baseline
- .
- One assembly/test site
- .
- One fabrication site
- .
- Enhanced product change notification
- .
- Qualification data available on request
- .
- V62/12661 DSCC Drawing Number
