Overview
The AD5620CRM-2REEL7, 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 component 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.
Key Specifications
| Parameter | Value | Unit | Conditions/Comments |
|---|---|---|---|
| Resolution | 12 | Bits | |
| Relative Accuracy | ±6 | LSB | Maximum |
| Differential Nonlinearity | ±0.25 | LSB | Maximum |
| Zero-Code Error | 2 (typ), 8 (max) | mV | All 0s loaded to DAC register |
| Offset Error | ±9 | mV | Maximum |
| Full-Scale Error | ±0.15 (typ), ±0.85 (max) | % FSR | All 1s loaded to DAC register |
| Gain Error | ±0.85 | % FSR | Maximum |
| Output Voltage Range | 0 to VDD | V | |
| Output Voltage Settling Time | 8 (typ), 10 (max) | µs | ¼ to ¾ scale change settling to ±2 LSB |
| Power Supply | 2.7 to 5.5 | V | |
| Power Consumption (Normal Mode) | 0.55 (typ), 1 (max) | mA | VDD = 4.5 V to 5.5 V |
| Power Consumption (Power-Down Mode) | 0.48 (typ), 1 (max) | µA | VDD = 4.5 V to 5.5 V |
Key Features
- Low power consumption: The AD5620CRM-2REEL7 operates with a power consumption of 2.5 mW at 5 V and reduces to 1 μW in power-down mode.
- On-chip reference: The device includes an internal 1.25 V or 2.5 V reference with a temperature coefficient of 5 ppm/°C.
- Monotonic by design: Guaranteed monotonicity ensures that the output voltage always increases with an increase in the digital input code.
- Power-on reset: The DAC output powers up to 0 V or midscale and remains there until a valid write takes place.
- Power-down feature: The device can be powered down to reduce current consumption to 480 nA at 5 V, with software-selectable output loads.
- Rail-to-rail output: The on-chip precision output amplifier allows for rail-to-rail output swing.
- Serial interface: The device uses a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz.
Applications
- Process control: Suitable for precise control in industrial processes.
- Data acquisition systems: Used in systems that require accurate and reliable data conversion.
- Portable battery-powered instruments: Ideal for devices that need low power consumption and high precision.
- Digital gain and offset adjustment: Can be used to adjust gain and offset in various electronic systems.
- Programmable voltage and current sources: Useful in applications requiring programmable voltage or current outputs.
- Programmable attenuators: Can be used in signal processing and transmission systems.
Q & A
- What is the resolution of the AD5620CRM-2REEL7?
The AD5620CRM-2REEL7 has a resolution of 12 bits.
- What is the power consumption of the AD5620CRM-2REEL7 in normal mode?
The power consumption is typically 0.55 mA and up to 1 mA at VDD = 4.5 V to 5.5 V.
- What is the power-down current consumption of the AD5620CRM-2REEL7?
The power-down current consumption is typically 0.48 µA and up to 1 µA at VDD = 4.5 V to 5.5 V.
- What is the output voltage range of the AD5620CRM-2REEL7?
The output voltage range is from 0 V to VDD.
- Does the AD5620CRM-2REEL7 have an on-chip reference?
Yes, it includes an internal 1.25 V or 2.5 V reference with a temperature coefficient of 5 ppm/°C.
- What type of serial interface does the AD5620CRM-2REEL7 use?
The device uses a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz.
- What is the settling time of the AD5620CRM-2REEL7?
The output voltage settling time is typically 8 µs and up to 10 µs for a ¼ to ¾ scale change settling to ±2 LSB.
- Is the AD5620CRM-2REEL7 guaranteed to be monotonic?
Yes, the device is guaranteed monotonic by design.
- What are the typical applications of the AD5620CRM-2REEL7?
The device is typically used in process control, data acquisition systems, portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and programmable attenuators.
- What is the power-on reset behavior of the AD5620CRM-2REEL7?
The DAC output powers up to 0 V or midscale and remains there until a valid write takes place.
