Overview
The AD5681RBCPZ-RL7, produced by Analog Devices Inc., is a member of the nanoDAC+® family. It is a low-power, single-channel, 12-bit buffered voltage output digital-to-analog converter (DAC). This device features a high level of precision and reliability, making it suitable for a variety of applications requiring accurate analog output. The AD5681R includes an internal 2.5 V reference with a drift of 2 ppm/°C and operates from a single 2.7 V to 5.5 V supply. It is available in an 8-lead LFCSP package, measuring 2.00 mm × 2.00 mm, and is guaranteed monotonic by design.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | - | - | 12 bits | - | - |
| Output Voltage Range | 0 | - | VREF or 2 × VREF | V | Gain = 1 or 2 |
| Reference Output Voltage | 2.4975 | 2.5025 | - | V | At ambient |
| Reference Temperature Coefficient | - | - | 2 ppm/°C | - | A-Grade |
| Supply Voltage | 2.7 | - | 5.5 | V | - |
| Logic Supply Voltage | 1.62 | - | 5.5 | V | - |
| Power Consumption (Normal Mode) | 350 | - | 500 | µA | Internal reference enabled |
| Power Consumption (Power-Down Mode) | - | - | 2 | µA | - |
| Output Load Capability | - | - | ±5 | mA | VDD ≥ 3 V |
Key Features
- High Precision: High relative accuracy (INL) of ±1 LSB maximum at 12 bits and total unadjusted error (TUE) of 0.06% of FSR maximum.
- Internal Reference: Includes an internal 2.5 V reference with a drift of 2 ppm/°C, which can be used to set the output span to 0 V to VREF or 0 V to 2 × VREF.
- Low Power Consumption: Operates from a single 2.7 V to 5.5 V supply with low power consumption, including a power-down mode that reduces current to 2 µA.
- Compact Package: Available in a compact 8-lead LFCSP package measuring 2.00 mm × 2.00 mm.
- Monotonic by Design: Guaranteed monotonic by design, ensuring that the output voltage increases or decreases monotonically with the digital input code.
- Versatile Interface: Uses a versatile 3-wire serial interface that operates at clock rates of up to 50 MHz.
Applications
- Industrial Automation: Suitable for applications in industrial automation where precise analog output is required.
- Medical Devices: Used in medical devices that demand high accuracy and reliability.
- Aerospace and Defense: Applicable in aerospace and defense systems where low power consumption and high precision are critical.
- Automotive Systems: Employed in automotive systems for precise control and monitoring.
- Consumer Electronics: Used in various consumer electronics requiring accurate analog output.
Q & A
- What is the resolution of the AD5681RBCPZ-RL7 DAC?
The AD5681RBCPZ-RL7 has a resolution of 12 bits.
- What is the output voltage range of the AD5681RBCPZ-RL7?
The output voltage range can be programmed to be 0 V to VREF or 0 V to 2 × VREF.
- What is the internal reference voltage of the AD5681RBCPZ-RL7?
The internal reference voltage is 2.5 V with a drift of 2 ppm/°C.
- What is the supply voltage range for the AD5681RBCPZ-RL7?
The device operates from a single 2.7 V to 5.5 V supply.
- What is the power consumption in normal mode and power-down mode?
In normal mode, the power consumption is 350 µA to 500 µA, and in power-down mode, it is 2 µA.
- What is the output load capability of the AD5681RBCPZ-RL7?
The device can source or sink up to ±5 mA when VDD ≥ 3 V.
- What type of interface does the AD5681RBCPZ-RL7 use?
The device uses a versatile 3-wire serial interface that operates at clock rates of up to 50 MHz.
- What are the package options for the AD5681RBCPZ-RL7?
The device is available in an 8-lead LFCSP package measuring 2.00 mm × 2.00 mm.
- Is the AD5681RBCPZ-RL7 guaranteed monotonic?
Yes, the device is guaranteed monotonic by design.
- What are some typical applications for the AD5681RBCPZ-RL7?
Typical applications include industrial automation, medical devices, aerospace and defense, automotive systems, and consumer electronics.
