Overview
The AD5664BRMZ, part of the nanoDAC® family from Analog Devices Inc., is a low power, quad, 16-bit buffered voltage-out Digital-to-Analog Converter (DAC). This device operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. It features a rail-to-rail output swing and incorporates a power-on reset circuit, ensuring the DAC output powers up to 0 V and remains there until a valid write takes place. The AD5664BRMZ is ideal for applications requiring low power consumption, such as portable battery-operated equipment.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 16 bits | ||||
| Supply Voltage | 2.7 V | 5.5 V | V | ||
| Output Voltage Range | 0 V | VDD | V | ||
| DC Output Impedance | 0.5 Ω | 0.5 Ω | Ω | ||
| Short-Circuit Current | 30 mA | 30 mA | mA | VDD = 5 V | |
| Power-Up Time | 4 μs | 4 μs | μs | Coming out of power-down mode; VDD = 5 V | |
| Reference Input Range | 0.75 VDD | 0.75 VDD | V | ||
| Reference Input Impedance | 26 kΩ | 26 kΩ | kΩ | ||
| Input Current (Logic) | ±2 μA | ±2 μA | μA | All digital inputs | |
| Input Low Voltage (VINL) | 0.8 V | 0.8 V | V | VDD = 5 V, 3 V | |
| Input High Voltage (VINH) | 2 V | 2 V | V | VDD = 5 V, 3 V | |
| Output Voltage Settling Time | 4 μs | 7 μs | μs | ¼ to ¾ scale settling to ±2 LSB | |
| Slew Rate | 1.8 V/μs | V/μs | |||
| Digital-to-Analog Glitch Impulse | 10 nV-s | nV-s | 1 LSB change around major carry | ||
| Operating Temperature | -40°C | +105°C | °C |
Key Features
- Low power consumption: Ideal for portable battery-operated equipment with power consumption as low as 2.25 mW at 5 V and 2.4 μW in power-down mode.
- Quad, 16-bit DAC: Provides high resolution with four independent channels.
- Rail-to-rail output swing: Ensures the output voltage can swing from 0 V to VDD.
- Guaranteed monotonic by design: Ensures that the output voltage increases monotonically with the digital input code).
- Power-on reset and power-down feature: The DAC output powers up to 0 V and remains there until a valid write takes place. The power-down mode reduces current consumption significantly).
- Versatile 3-wire serial interface: Compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 50 MHz).
- External reference voltage: Allows for flexible output range setting).
Applications
- Automotive electronics: Suitable for the precise control and monitoring required in automotive systems).
- Communication systems: Used in various communication equipment due to its high precision and low power consumption).
- Sensor interface circuits: Ideal for interfacing with sensors due to its high resolution and accuracy).
- Portable battery-operated equipment: The low power consumption makes it suitable for devices that require long battery life).
Q & A
- What is the resolution of the AD5664BRMZ DAC?
The AD5664BRMZ has a resolution of 16 bits).
- What is the operating voltage range of the AD5664BRMZ?
The AD5664BRMZ operates from a single 2.7 V to 5.5 V supply).
- What is the output voltage range of the AD5664BRMZ?
The output voltage range is from 0 V to VDD).
- Is the AD5664BRMZ guaranteed monotonic by design?
Yes, the AD5664BRMZ is guaranteed monotonic by design).
- What is the power consumption of the AD5664BRMZ in normal operation?
The power consumption is approximately 2.25 mW at 5 V).
- What is the power consumption in power-down mode?
In power-down mode, the power consumption is as low as 2.4 μW).
- What type of interface does the AD5664BRMZ use?
The AD5664BRMZ uses a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards).
- What is the maximum clock rate for the serial interface?
The serial interface operates at clock rates up to 50 MHz).
- Does the AD5664BRMZ require an external reference voltage?
Yes, the AD5664BRMZ requires an external reference voltage to set the output range).
- What is the operating temperature range of the AD5664BRMZ?
The operating temperature range is from -40°C to +105°C).
