Overview
The AD5662BRMZ-1, part of the nanoDAC family from Analog Devices Inc., is a low-power, single, 16-bit buffered voltage-out digital-to-analog converter (DAC). It operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. This DAC is designed for low power consumption, making it ideal for portable battery-operated equipment. It features a power-on reset circuit and a power-down mode that reduces current consumption to 480 nA at 5 V. The AD5662 also includes a versatile 3-wire serial interface compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits | |
| Relative Accuracy | ±8 | ±32 | 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 | ||
| VDD | 2.7 | 5.5 | V | ||
| Power Consumption (Normal Mode) | 0.75 | mW | VDD = 5 V | ||
| Power Consumption (Power-Down Mode) | 2.4 | μW | VDD = 5 V | ||
| Temperature Range | -40 | 125 | °C |
Key Features
- Low Power Consumption: The AD5662 consumes 0.75 mW at 5 V and reduces to 2.4 μW in power-down mode, making it suitable for battery-operated devices.
- Monotonic by Design: Guaranteed 16-bit monotonic performance ensures accurate and reliable output.
- Power-On Reset and Power-Down: The DAC powers up to 0 V or midscale and has a power-down feature that reduces current consumption to 480 nA at 5 V.
- Versatile Serial Interface: Compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz.
- Rail-to-Rail Output Swing: The on-chip precision output amplifier allows for rail-to-rail output swing, and the inverting input is available for remote sensing applications.
Applications
- Process Control: Used in systems that require precise control over analog outputs.
- Data Acquisition Systems: Suitable for systems that need high accuracy and low power consumption.
- Portable Battery-Powered Instruments: Ideal for devices that require low power consumption and high precision.
- Digital Gain and Offset Adjustment: Can be used to adjust gain and offset in various analog circuits.
- Programmable Voltage and Current Sources: Can be configured as programmable sources for various applications.
- Programmable Attenuators: Used in systems that require adjustable attenuation.
Q & A
- What is the resolution of the AD5662BRMZ-1 DAC?
The AD5662BRMZ-1 has a resolution of 16 bits.
- What is the operating voltage range of the AD5662BRMZ-1?
The AD5662BRMZ-1 operates from a single 2.7 V to 5.5 V supply.
- What is the power consumption of the AD5662BRMZ-1 in normal mode?
The power consumption is 0.75 mW at 5 V.
- What is the power consumption of the AD5662BRMZ-1 in power-down mode?
The power consumption reduces to 2.4 μW in power-down mode at 5 V.
- What type of serial interface does the AD5662BRMZ-1 use?
The AD5662BRMZ-1 uses a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the temperature range of the AD5662BRMZ-1?
The temperature range is from -40°C to +125°C.
- Does the AD5662BRMZ-1 have a power-on reset feature?
Yes, the AD5662BRMZ-1 has a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale.
- Can the AD5662BRMZ-1 be used in remote sensing applications?
Yes, the output amplifier’s inverting input is available for remote sensing applications.
- What are some common applications of the AD5662BRMZ-1?
Common applications include process control, data acquisition systems, portable battery-powered instruments, digital gain and offset adjustment, and programmable voltage and current sources.
- Is the AD5662BRMZ-1 qualified for automotive applications?
Yes, the AD5662BRMZ-1 is qualified for automotive applications.
