AD5780 System Ready, 18-Bit ±1 LSB INL, Voltage Output DAC
True 18-Bit Accuracy.
Wide Power Supply Range of Up to ±16.5 V.
−40°C to +125°C Operating Temperature Range.
Low 8 nV/√Hz Noise.
Low ±0.018 ppm/°C gain error temperature coefficient.
Applications
The AD5780 1 is a true 18-bit, unbuffered voltage output DAC that operates from a bipolar supply of up to 33 V. The AD5780 accepts a positive reference input range of 5 V to VDD − 2.5 V and a negative reference input range of VSS + 2.5 V to 0 V. Both reference inputs are buffered on chip and external buffers are not required. The AD5780 offers a relative accuracy specifica-tion of ±1 LSB maximum range, and operation is guaranteed monotonic with a ±1 LSB DNL maximum range specification.
The part uses a versatile 3-wire serial interface that operates at clock rates of 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 that the DAC output powers up to 0 V 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.
1Protected by U.S. Patent No. 7,884,747 and 8,089,380.
Product Highlights
- True 18-Bit Accuracy.
- Wide Power Supply Range of Up to ±16.5 V.
- −40°C to +125°C Operating Temperature Range.
- Low 8 nV/√Hz Noise.
- Low ±0.018 ppm/°C gain error temperature coefficient.
Features and Benefits- True 18-bit voltage output DAC, ±1 LSB INL
- 8 nV/√Hz output noise spectral density
- 0.025 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
- 4 mm x 5 mm LFCSP package
- Wide power supply range of up to ±16.5 V
- 35 MHz Schmitt triggered digital interface
- 1.8 V compatible digital interface
| Reference Designs |
Data Sheets
User Guides
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| AD5780ACPZ Production | 24 ld LFCSP (4x5mm w/3.65x2.65mm EP) | OTH 490 | -40 to 125C | 23.79 | 19.5 | Y |
| AD5780ACPZ-REEL7 Production | 24 ld LFCSP (4x5mm w/3.65x2.65mm EP) | REEL 1500 | -40 to 125C | 0 | 19.5 | Y |
| AD5780BCPZ Production | 24 ld LFCSP (4x5mm w/3.65x2.65mm EP) | OTH 490 | -40 to 125C | 35.19 | 28.85 | Y |
| AD5780BCPZ-REEL7 Production | 24 ld LFCSP (4x5mm w/3.65x2.65mm EP) | REEL 1500 | -40 to 125C | 0 | 28.85 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| EVAL-AD5780SDZ | Evaluation Board | 149 | Y |
| EVAL-SDP-CB1Z | SDP-B Controller Board (also required) | 99 | Y |
Reference Materials
