Overview
The AD5620ARJZ-1500RL7, produced by Analog Devices Inc., is a member of the nanoDAC™ family of devices. It is a low-power, single, 12-bit, buffered voltage-out digital-to-analog converter (DAC). This device is known for its high precision and low power consumption, making it suitable for a variety of applications requiring accurate voltage output.
The AD5620 features an internal 1.25 V or 2.5 V reference with a 5 ppm/°C temperature coefficient, ensuring stable output voltage ranges. The device operates on a single 3 V or 5 V power supply and includes a power-on reset circuit that sets the DAC output to 0 V or midscale until a valid write occurs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12 | Bits |
| Relative Accuracy | ±6 | LSB |
| Differential Nonlinearity | ±0.25 | LSB |
| Zero-Code Error | 2 mV (typ), 8 mV (max) | mV |
| Offset Error | ±10 mV (max) | mV |
| Full-Scale Error | ±0.15% FSR (typ), ±1% FSR (max) | % FSR |
| Gain Error | ±1.5% FSR (max) | % FSR |
| Output Voltage Range | 0 to VDD | V |
| Output Voltage Settling Time | 8 µs (typ), 10 µs (max) | µs |
| Slew Rate | 1.5 V/µs (typ) | V/µs |
| Power Supply | 3 V or 5 V | V |
| Power Consumption | 2.5 mW at 5 V, 1 µW in power-down mode | mW/µW |
| Package | 8-Lead SOT-23 |
Key Features
- Low Power Consumption: The AD5620 consumes 2.5 mW at 5 V and reduces to 1 µW in power-down mode.
- Internal Reference: Includes an internal 1.25 V or 2.5 V reference with a 5 ppm/°C temperature coefficient.
- Guaranteed Monotonicity: Ensures that the DAC output is monotonic by design.
- Power-On Reset: Resets the DAC output to 0 V or midscale upon power-up.
- Power-Down Mode: Features three power-down modes with software-selectable output loads.
- Rail-to-Rail Output: The on-chip precision output amplifier allows for rail-to-rail output swing.
- Serial Interface: Uses a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
Applications
- Process Control: Suitable for precise control in industrial processes.
- Data Acquisition Systems: Used in systems requiring accurate analog output.
- Portable Battery-Powered Instruments: Ideal for devices needing low power consumption and high precision.
- Digital Gain and Offset Adjustment: Useful in applications requiring adjustable gain and offset.
- Programmable Voltage and Current Sources: Can be used to create programmable sources.
- Programmable Attenuators: Suitable for applications needing adjustable attenuation.
Q & A
- What is the resolution of the AD5620ARJZ-1500RL7?
The AD5620ARJZ-1500RL7 has a resolution of 12 bits.
- What are the available internal reference voltages for the AD5620?
The AD5620 includes internal references of 1.25 V and 2.5 V with a 5 ppm/°C temperature coefficient.
- What is the power consumption of the AD5620 in normal and power-down modes?
The device consumes 2.5 mW at 5 V in normal mode and reduces to 1 µW in power-down mode.
- What type of package does the AD5620ARJZ-1500RL7 come in?
The AD5620ARJZ-1500RL7 comes in an 8-Lead SOT-23 package.
- What is the output voltage range of the AD5620?
The output voltage range is from 0 to VDD (the supply voltage).
- Is the AD5620 guaranteed to be monotonic?
Yes, the AD5620 is guaranteed monotonic by design.
- What is the settling time for the output voltage of the AD5620?
The output voltage settling time is typically 8 µs and maximally 10 µs for a ¼ to ¾ scale change.
- What serial interfaces are compatible with the AD5620?
The AD5620 is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- What are some common applications of the AD5620?
The AD5620 is commonly used in process control, data acquisition systems, portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and programmable attenuators.
- Does the AD5620 have a power-on reset feature?
Yes, the AD5620 includes a power-on reset circuit that sets the DAC output to 0 V or midscale upon power-up.
