Overview
The AD5662ARMZ-1, produced by Analog Devices Inc., is a low power, single, 16-bit buffered voltage-out Digital-to-Analog Converter (DAC) that is part of the nanoDAC family. This device operates from a single supply voltage ranging from 2.7 V to 5.5 V and is guaranteed monotonic by design. It features a power-on reset circuit that ensures the DAC output powers up to either 0 V or midscale, depending on the model, and remains there until a valid write takes place. The AD5662 also includes a power-down feature that significantly reduces current consumption, making it suitable for portable battery-operated equipment.
Key Specifications
| Parameter | Value | Unit | Conditions/Comments |
|---|---|---|---|
| Resolution | 16 | Bits | |
| Supply Voltage | 2.7 V to 5.5 V | V | Analog and Digital |
| Relative Accuracy | ±8 LSB | ||
| Differential Nonlinearity | ±1 LSB | Guaranteed monotonic by design | |
| Zero Code Error | 2 mV to 10 mV | mV | All 0s loaded to DAC register |
| Full-Scale Error | -0.2% to -1% FSR | % FSR | All 1s loaded to DAC register |
| Offset Error | ±10 mV | mV | |
| Gain Error | ±1.5% FSR | % FSR | |
| Settling Time | 10 μs | μs | |
| Output Type | Voltage - Buffered | ||
| Data Interface | SPI, QSPI, MICROWIRE, DSP | ||
| Operating Temperature | -40°C to 125°C | °C | |
| Power Consumption (Normal Mode) | 0.75 mW at 5 V | mW | DAC active and excluding load current |
| Power Consumption (Power-Down Mode) | 2.4 μW at 5 V | μW |
Key Features
- Low Power Consumption: The AD5662ARMZ-1 is designed for low power consumption, making it ideal for portable battery-operated equipment. It consumes 0.75 mW at 5 V in normal operation and reduces to 2.4 μW in power-down mode.
- High Precision Output: The device features an on-chip precision output amplifier that allows rail-to-rail output swing, ensuring high accuracy and reliability.
- Flexible Interface: It uses a versatile 3-wire serial interface compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz.
- Power-On Reset and Power-Down: The device includes a power-on reset circuit and a power-down feature with software-selectable output loads, enhancing its usability in various applications.
- Remote Sensing Capability: The output amplifier’s inverting input is available for remote sensing applications.
Applications
- Process Control: Suitable for precision control in industrial processes.
- Data Acquisition Systems: Ideal for high-accuracy data acquisition and measurement systems.
- Portable Battery-Powered Instruments: Its low power consumption makes it perfect for battery-operated devices.
- Digital Gain and Offset Adjustment: Useful in applications requiring precise digital adjustment of gain and offset.
- Programmable Voltage and Current Sources: Can be used to create programmable voltage and current sources.
- Programmable Attenuators: Suitable for applications requiring programmable attenuation.
Q & A
- What is the resolution of the AD5662ARMZ-1 DAC?
The AD5662ARMZ-1 has a resolution of 16 bits.
- What is the operating voltage range of the AD5662ARMZ-1?
The device operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- What type of output does the AD5662ARMZ-1 provide?
The AD5662ARMZ-1 provides a buffered voltage output.
- What interfaces are supported by the AD5662ARMZ-1?
The device supports SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the power consumption of the AD5662ARMZ-1 in normal operation?
The power consumption is 0.75 mW at 5 V in normal operation.
- How does the power-down feature of the AD5662ARMZ-1 work?
The power-down feature reduces the current consumption to 2.4 μW at 5 V and provides software-selectable output loads.
- What is the settling time of the AD5662ARMZ-1?
The settling time is 10 μs.
- Is the AD5662ARMZ-1 suitable for remote sensing applications?
Yes, the output amplifier’s inverting input is available for remote sensing applications.
- What is the operating temperature range of the AD5662ARMZ-1?
The operating temperature range is -40°C to 125°C.
- Does the AD5662ARMZ-1 require an external reference voltage?
Yes, the device requires an external reference voltage to set the output range of the DAC.
