Overview
The AD5662BRMZ-1REEL7, produced by Analog Devices Inc., is a low-power, single, 16-bit buffered voltage-out Digital-to-Analog Converter (DAC) that operates from a single 2.7 V to 5.5 V supply. It is part of the nanoDAC family and is guaranteed monotonic by design. This DAC requires an external reference voltage to set the output range and features a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale, depending on the model, until a valid write takes place. The AD5662 is designed for low power consumption, making it ideal for portable battery-operated equipment and other applications requiring high precision and reliability.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits | |
| Supply Voltage | 2.7 | 5.5 | V | ||
| Integral Nonlinearity (INL) | ±8 | ±16 | LSB | ||
| Differential Nonlinearity (DNL) | ±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 | |
| Output Voltage Range | 0 | VDD | V | ||
| Output Voltage Settling Time | 8 | 10 | μs | ¼ to ¾ scale change settling to ±2 LSB | |
| Power Consumption (Normal Mode) | 0.75 | mW | VDD = 5 V | ||
| Power Consumption (Power-Down Mode) | 2.4 | μW | VDD = 5 V | ||
| Operating Temperature Range | -40 | +125 | °C | ||
| Interface Type | 3-Wire, SPI, QSPI, MICROWIRE, DSP |
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 suitable for battery-operated devices.
- High Precision: Guaranteed monotonic by design with ±8 LSB to ±16 LSB integral nonlinearity and ±1 LSB differential nonlinearity.
- Flexible Interface: Uses a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating at clock rates up to 30 MHz.
- Rail-to-Rail Output: The on-chip precision output amplifier allows for rail-to-rail output swing, and the inverting input is available for remote sensing applications.
- Power-Down Functions: Features three power-down functions that reduce current consumption to 480 nA at 5 V, with software-selectable output loads while in power-down mode.
- Temperature Range: Operates over a wide temperature range of -40°C to +125°C, making it suitable for various environmental conditions.
Applications
- Process Control: Used in systems that require precise analog output for control and monitoring.
- Data Acquisition Systems: Ideal for systems that need high-precision analog output for data conversion and processing.
- Portable Battery-Powered Instruments: Suitable due to its low power consumption and high precision, making it ideal for handheld devices.
- Digital Gain and Offset Adjustment: Can be used to adjust gain and offset in various analog circuits.
- Programmable Voltage and Current Sources: Used in applications requiring programmable analog outputs.
- Programmable Attenuators: Can be used in signal processing and attenuation applications.
- Automotive Applications: Qualified for use in automotive systems due to its robust temperature range and reliability.
Q & A
- What is the resolution of the AD5662BRMZ-1REEL7?
The AD5662BRMZ-1REEL7 has a resolution of 16 bits.
- What is the operating supply voltage range of the AD5662BRMZ-1REEL7?
The operating supply voltage range is from 2.7 V to 5.5 V.
- What is the typical power consumption of the AD5662BRMZ-1REEL7 in normal operation?
The typical power consumption is 0.75 mW at 5 V.
- What is the power consumption in power-down mode?
The power consumption in power-down mode is 2.4 μW at 5 V.
- What type of interface does the AD5662BRMZ-1REEL7 use?
The AD5662BRMZ-1REEL7 uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
- What is the output voltage range of the AD5662BRMZ-1REEL7?
The output voltage range is from 0 V to VDD.
- What is the settling time for the output voltage?
The settling time is typically 8 μs to 10 μs for a ¼ to ¾ scale change.
- Is the AD5662BRMZ-1REEL7 suitable for automotive applications?
Yes, it is qualified for automotive applications due to its robust temperature range and reliability.
- What is the operating temperature range of the AD5662BRMZ-1REEL7?
The operating temperature range is from -40°C to +125°C.
- Does the AD5662BRMZ-1REEL7 have a power-on reset feature?
Yes, it has a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale until a valid write takes place.
