Overview
The AD5620CRMZ-2REEL7, produced by Analog Devices Inc., is part of the nanoDAC family of devices. This component is a low-power, single, 12-bit, buffered voltage-out digital-to-analog converter (DAC). It is known for its high precision and low power consumption, making it suitable for a variety of applications, including process control, data acquisition systems, and portable battery-powered instruments. The AD5620 features an on-chip 2.5 V, 5 ppm/°C reference and is available in an 8-lead MSOP package.
Key Specifications
| Parameter | Unit | Conditions/Comments |
|---|---|---|
| Resolution | 12 bits | Minimum |
| Relative Accuracy | ±6 LSB (max) | All grades |
| Differential Nonlinearity | ±0.25 LSB (max) | All grades |
| Zero-Code Error | 2 mV (typ), 10 mV (max) | All 0s loaded to DAC register |
| Offset Error | ±10 mV (max) | |
| Full-Scale Error | ±0.15% FSR (typ), ±1% FSR (max) | All 1s loaded to DAC register |
| Gain Error | ±1.5% FSR (max) | |
| Output Voltage Range | 0 V to VDD | |
| Output Voltage Settling Time | 8 µs (typ), 10 µs (max) | ¼ to ¾ scale change settling to ±2 LSB |
| Slew Rate | 1.5 V/µs (typ) | |
| Power Supply | 2.7 V to 5.5 V | |
| Current Consumption (Normal Mode) | 0.55 mA (typ), 1 mA (max) at VDD = 4.5 V to 5.5 V | |
| Current Consumption (Power-Down Mode) | 0.48 µA (typ), 1 µA (max) at VDD = 4.5 V to 5.5 V |
Key Features
- Low power consumption: The AD5620 operates with a current consumption of 0.55 mA (typical) in normal mode and reduces to 480 nA in power-down mode at 5 V.
- High precision: The device features an on-chip 2.5 V, 5 ppm/°C reference and is guaranteed monotonic by design.
- Compact packaging: Available in an 8-lead MSOP package, making it suitable for space-constrained applications.
- Rail-to-rail output: The on-chip precision output amplifier allows for rail-to-rail output swing.
- Power-on reset: Ensures the DAC output powers up to 0 V or midscale and remains there until a valid write takes place.
- Versatile serial interface: Operates at clock rates up to 30 MHz and is compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards.
Applications
- Process control: Suitable for precision control in industrial processes.
- Data acquisition systems: Used in systems that require accurate and precise analog output.
- Portable battery-powered instruments: Ideal due to its low power consumption and compact size.
- Digital gain and offset adjustment: Can be used to adjust gain and offset in various electronic systems.
- Programmable voltage and current sources: Utilized in applications requiring programmable voltage or current outputs.
- Programmable attenuators: Used in signal processing and communication systems.
Q & A
- What is the resolution of the AD5620CRMZ-2REEL7?
The AD5620CRMZ-2REEL7 has a resolution of 12 bits.
- What is the typical current consumption of the AD5620 in normal mode?
The typical current consumption is 0.55 mA at VDD = 4.5 V to 5.5 V).
- What is the power-down current consumption of the AD5620?
The power-down current consumption is 480 nA at 5 V).
- What is the output voltage range of the AD5620?
The output voltage range is from 0 V to VDD).
- Does the AD5620 have an on-chip reference?
Yes, the AD5620 includes an on-chip 2.5 V, 5 ppm/°C reference).
- What is the maximum clock rate of the serial interface?
The serial interface operates at clock rates up to 30 MHz).
- What are the available package types for the AD5620?
The AD5620 is available in 8-lead SOT-23, MSOP, and LFCSP packages).
- Is the AD5620 guaranteed monotonic by design?
Yes, the AD5620 is guaranteed monotonic by design).
- What are some common applications of the AD5620?
Common applications include 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 ensures the DAC output powers up to 0 V or midscale).
