Overview
The AD5662BRJZ-1500RL7, produced by Analog Devices Inc., is a low power, single, 16-bit buffered voltage-out Digital-to-Analog Converter (DAC) that belongs to 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 versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards, allowing for high-speed communication up to 30 MHz. The AD5662 includes a power-on reset circuit and a power-down feature that significantly reduces current consumption, making it suitable for portable battery-operated equipment.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits | |
| Relative Accuracy | ±8 | ±16 | LSB | See Figure 4 | |
| Differential Nonlinearity | ±1 | ±1 | LSB | Guaranteed monotonic by design | |
| Zero Code Error | 2 | 10 | mV | All 0s loaded to DAC register | |
| Full-Scale Error | -0.2 | -1 | % FSR | All 1s loaded to DAC register | |
| Offset Error | ±10 | ±10 | mV | ||
| Gain Error | ±1.5 | ±1.5 | % FSR | ||
| Output Voltage Range | 0 | VDD | V | ||
| Output Voltage Settling Time | 8 | 10 | 10 | μs | ¼ to ¾ scale change settling to ±2 LSB |
| Slew Rate | 1.5 | 1.5 | 1.5 | V/μs | ¼ to ¾ full-scale |
| Power Consumption (Normal Operation) | 0.75 | mW | At 5 V | ||
| Power Consumption (Power-Down Mode) | 2.4 | μW | At 5 V |
Key Features
- Low Power Consumption: The AD5662 operates with a power consumption of 0.75 mW at 5 V and reduces to 2.4 μW in power-down mode, making it ideal for battery-operated devices.
- Rail-to-Rail Output: The on-chip precision output amplifier allows for rail-to-rail output swing, enhancing the device's versatility.
- High-Speed Serial Interface: Compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards, with clock rates up to 30 MHz.
- Power-On Reset and Power-Down Feature: Ensures the DAC output powers up to 0 V or midscale and reduces current consumption significantly in power-down mode.
- External Reference Voltage: Requires an external reference voltage to set the output range of the DAC.
- Guaranteed Monotonic by Design: Ensures that the DAC output is always monotonic, which is crucial for many applications.
Applications
- Process Control: Suitable for precise control in industrial processes.
- Data Acquisition Systems: Used in systems that require high accuracy and low power consumption.
- Portable Battery-Powered Instruments: Ideal for devices that need to operate on battery power for extended periods.
- Digital Gain and Offset Adjustment: Can be used to adjust gain and offset in various electronic systems.
- Programmable Voltage and Current Sources: Can be configured as programmable sources for voltage and current.
- Programmable Attenuators: Useful in applications requiring adjustable attenuation.
Q & A
- What is the resolution of the AD5662BRJZ-1500RL7?
The AD5662BRJZ-1500RL7 has a resolution of 16 bits.
- What is the operating voltage range of the AD5662BRJZ-1500RL7?
The device operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- What types of serial interfaces is the AD5662BRJZ-1500RL7 compatible with?
The device is compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards.
- What is the maximum clock rate of the serial interface?
The serial interface can operate at clock rates up to 30 MHz.
- What is the power consumption of the AD5662BRJZ-1500RL7 in normal operation and power-down mode?
In normal operation, the power consumption is 0.75 mW at 5 V, and in power-down mode, it reduces to 2.4 μW.
- Does the AD5662BRJZ-1500RL7 require an external reference voltage?
Yes, the device requires an external reference voltage to set the output range of the DAC.
- What is the output voltage range of the AD5662BRJZ-1500RL7?
The output voltage range is from 0 V to VDD.
- What is the slew rate of the AD5662BRJZ-1500RL7?
The slew rate is 1.5 V/μs.
- Is the AD5662BRJZ-1500RL7 guaranteed monotonic by design?
Yes, the device is guaranteed monotonic by design.
- What are some typical applications of the AD5662BRJZ-1500RL7?
Typical applications include process control, data acquisition systems, portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and programmable attenuators..
