Overview
The AD5647RBRMZ is a dual, 14-bit nanoDAC (Digital-to-Analog Converter) produced by Analog Devices Inc. This device is part of the nanoDAC family, which includes low power, dual, 12-, 14-, and 16-bit buffered voltage-out DACs with or without on-chip reference. The AD5647RBRMZ operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. It features an I2C-compatible serial interface and an on-chip precision output amplifier that enables rail-to-rail output swing.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 14 bits |
| Supply Voltage | 2.7 V to 5.5 V |
| On-Chip Reference | 1.25 V or 2.5 V, 5 ppm/°C |
| Full-Scale Output Range | 2.5 V or 5 V depending on reference |
| Interface | I2C-compatible (100 kHz, 400 kHz, 3.4 MHz modes) |
| Power Consumption (Normal Operation) | Low power, suitable for battery-operated devices |
| Power-Down Current | 480 nA at 5 V |
| Package | 10-Lead MSOP |
Key Features
- Low power consumption, making it ideal for portable battery-operated equipment.
- Guaranteed monotonic by design.
- On-chip precision output amplifier enabling rail-to-rail output swing.
- I2C-compatible serial interface supporting standard (100 kHz), fast (400 kHz), and high speed (3.4 MHz) modes.
- Per-channel power-down feature with software-selectable output loads.
- Power-on reset circuit ensuring DAC output powers up to 0 V.
- On-chip reference (1.25 V or 2.5 V, 5 ppm/°C) with the option to use an external reference.
Applications
- Process control systems.
- Data acquisition systems.
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
Q & A
- What is the resolution of the AD5647RBRMZ?
The AD5647RBRMZ has a resolution of 14 bits.
- What is the operating voltage range of the AD5647RBRMZ?
The device operates from a single 2.7 V to 5.5 V supply.
- Does the AD5647RBRMZ have an on-chip reference?
- What types of interfaces does the AD5647RBRMZ support?
The device supports I2C-compatible serial interface in standard (100 kHz), fast (400 kHz), and high speed (3.4 MHz) modes.
- How does the power-down feature work on the AD5647RBRMZ?
The device has a per-channel power-down feature that reduces the current consumption to 480 nA at 5 V and provides software-selectable output loads while in power-down mode.
- What is the significance of the power-on reset circuit in the AD5647RBRMZ?
The power-on reset circuit ensures the DAC output powers up to 0 V and remains there until a valid write takes place.
- What are some common applications of the AD5647RBRMZ?
Common applications include process control, data acquisition systems, portable battery-powered instruments, digital gain and offset adjustment, and programmable voltage and current sources.
- What package options are available for the AD5647RBRMZ?
The device is available in a 10-Lead MSOP package.
- Is the AD5647RBRMZ guaranteed monotonic by design?
- How does the on-chip precision output amplifier benefit the AD5647RBRMZ?
The on-chip precision output amplifier enables rail-to-rail output swing.
