Overview
The AD5674BCPZ-1, produced by Analog Devices Inc., is a low-power, 16-channel, 12-bit digital-to-analog converter (DAC) that belongs to the nanoDAC+ series. This device features buffered voltage output and includes a 2.5 V internal reference with a temperature coefficient of 2 ppm/°C. It is designed for applications requiring multiple analog outputs from a single digital interface.
The AD5674BCPZ-1 operates from a single supply voltage range of 2.7 V to 5.5 V and is guaranteed monotonic by design. It incorporates a power-on reset (POR) circuit that ensures the DAC outputs power up to and remain at zero-scale or midscale until a valid write. The device also includes a power-down mode that reduces current consumption to 2 μA typical.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 12-bit | ||||
| Number of Channels | 16 | ||||
| Voltage Reference | 2.5 V | Internal, 2 ppm/°C temperature coefficient | |||
| Supply Voltage | 2.7 V | 5.5 V | V | ||
| Operating Temperature | -40°C | 125°C | °C | ||
| Full-Scale Error (Gain = 1) | -0.013 ± 0.07 % of FSR | % of FSR | |||
| Full-Scale Error (Gain = 2) | -0.018 ± 0.14 % of FSR | % of FSR | |||
| Output Voltage Range (Gain = 1) | 0 V | 2.5 V | V | ||
| Output Voltage Range (Gain = 2) | 0 V | 5 V | V | ||
| Short-Circuit Current | 40 mA | mA | |||
| Load Regulation | 183 µV/mA (VDD = 5 V) | µV/mA | DAC code = midscale, −30 mA ≤ IOUT ≤ +30 mA | ||
| Power-Up Time | 3 µs | µs | |||
| Package | 28-lead LFCSP (4mm x 4mm x 0.95mm w/EP) |
Key Features
- Low Power Consumption: The AD5674BCPZ-1 is designed to be low power, making it suitable for battery-powered and power-sensitive applications.
- High Precision: Features a 2.5 V internal reference with a temperature coefficient of 2 ppm/°C, ensuring high precision and stability.
- Multiple Channels: Offers 16 channels, each capable of producing a buffered voltage output.
- Gain Selectability: User-selectable gain of 1 or 2 via the GAIN pin.
- Wide Operating Range: Operates over a temperature range of -40°C to +125°C and a supply voltage range of 2.7 V to 5.5 V.
- High-Speed Interface: Supports a 50 MHz serial peripheral interface (SPI) with readback or daisy chain capability.
- Power-Down Mode: Reduces current consumption to 2 μA typical when in power-down mode.
- Compact Package: Available in a 28-lead LFCSP (4mm x 4mm x 0.95mm w/EP) package, suitable for large-scale SMT production.
Applications
- Optical Transceivers: Used in optical communication systems to convert digital signals into analog signals for transmission.
- Base Station Power Amplifiers: Employed in base stations to control power amplifier outputs.
- Process Control: Utilized in programmable logic controller (PLC) input/output cards for industrial automation.
- Industrial Automation: Used in various control systems and devices to convert digital control signals into analog outputs.
- Data Acquisition Systems: Converts digital signals into analog signals for testing and measurement purposes.
- Digital Potentiometer Emulation: Can emulate digital potentiometers, providing digitally controlled variable resistances in circuits.
- Video Processing: Converts digital video signals into analog signals for display and transmission.
- LED Drivers: Controls the intensity and color of LEDs in various lighting systems.
Q & A
- What is the resolution of the AD5674BCPZ-1 DAC?
The AD5674BCPZ-1 has a resolution of 12 bits.
- How many channels does the AD5674BCPZ-1 support?
The AD5674BCPZ-1 supports 16 channels.
- What is the temperature coefficient of the internal voltage reference?
The internal voltage reference has a temperature coefficient of 2 ppm/°C.
- What is the supply voltage range for the AD5674BCPZ-1?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the operating temperature range of the AD5674BCPZ-1?
The operating temperature range is from -40°C to +125°C.
- What is the full-scale output voltage range for the AD5674BCPZ-1 with gain = 1 and gain = 2?
The full-scale output voltage range is 0 V to 2.5 V for gain = 1 and 0 V to 5 V for gain = 2.
- What is the short-circuit current of the AD5674BCPZ-1?
The short-circuit current is 40 mA.
- Does the AD5674BCPZ-1 support power-down mode?
Yes, the AD5674BCPZ-1 supports a power-down mode that reduces current consumption to 2 μA typical.
- What type of package does the AD5674BCPZ-1 come in?
The AD5674BCPZ-1 comes in a 28-lead LFCSP (4mm x 4mm x 0.95mm w/EP) package.
- What interface does the AD5674BCPZ-1 use for communication?
The AD5674BCPZ-1 uses a 50 MHz serial peripheral interface (SPI) with readback or daisy chain capability.
