Overview
The AD5640CRMZ-1, produced by Analog Devices Inc., is a member of the nanoDAC® family of devices. It is a low-power, single, 14-bit, buffered voltage-out digital-to-analog converter (DAC). This device is known for its high precision and low power consumption, making it suitable for a variety of applications. The AD5640CRMZ-1 features an internal 1.25 V or 2.5 V reference with a 5 ppm/°C temperature coefficient, ensuring stable output voltage ranges. The device is available in an 8-lead MSOP package and operates on a single 2.7 V to 3.3 V or 4.5 V to 5.5 V power supply.
Key Specifications
| Parameter | Value | Unit | Conditions/Comments |
|---|---|---|---|
| Resolution | 14 | Bits | |
| Relative Accuracy | ±4 (Max), ±0.5 (Max) | LSB | |
| Differential Nonlinearity | ±0.5 | LSB | |
| Output Voltage Range | 0 to VDD | V | |
| Output Voltage Settling Time | 10 µs (Max) | µs | ¼ to ¾ scale change settling to ±2 LSB |
| Slew Rate | 1.5 V/µs (Typ) | V/µs | |
| Power Supply | 2.7 V to 3.3 V or 4.5 V to 5.5 V | V | |
| Power Consumption (Normal Mode) | 0.55 mA (Typ) at 5 V | mA | |
| Power Consumption (Power-Down Mode) | 480 nA at 5 V | nA | |
| Operating Temperature | -40°C to 105°C | °C | |
| Package | 8-MSOP |
Key Features
- Low Power Consumption: The AD5640CRMZ-1 has a low power consumption of 0.55 mA (typical) in normal mode and reduces to 480 nA in power-down mode.
- High Precision: Features an internal 1.25 V or 2.5 V reference with a 5 ppm/°C temperature coefficient, ensuring high accuracy and stability.
- Buffered Voltage Output: The device includes an on-chip precision output amplifier allowing for rail-to-rail output swing.
- Versatile Interface: Uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating at clock rates up to 30 MHz.
- Power-On Reset and Power-Down Functions: Ensures the DAC output powers up to 0 V or midscale and remains there until a valid write takes place. The power-down feature reduces current consumption significantly.
- Compact Packaging: Available in an 8-lead MSOP package, making it suitable for space-constrained applications.
Applications
- Process Control: Ideal for precision control in industrial processes.
- Data Acquisition Systems: Used in systems requiring high accuracy and low noise.
- Portable Battery-Powered Instruments: Suitable due to its low power consumption.
- Digital Gain and Offset Adjustment: Can be used to adjust gain and offset in various digital systems.
- Programmable Voltage and Current Sources: Can be configured as programmable sources for voltage and current.
- Programmable Attenuators: Useful in applications requiring adjustable attenuation.
Q & A
- What is the resolution of the AD5640CRMZ-1?
The AD5640CRMZ-1 has a resolution of 14 bits.
- What is the typical power consumption of the AD5640CRMZ-1 in normal mode?
The typical power consumption is 0.55 mA at 5 V.
- What is the power-down current consumption of the AD5640CRMZ-1?
The power-down current consumption is 480 nA at 5 V.
- What is the operating temperature range of the AD5640CRMZ-1?
The operating temperature range is -40°C to 105°C.
- What type of interface does the AD5640CRMZ-1 use?
The device uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
- What is the output voltage range of the AD5640CRMZ-1?
The output voltage range is from 0 to VDD.
- Does the AD5640CRMZ-1 have an internal reference?
Yes, it features an internal 1.25 V or 2.5 V reference with a 5 ppm/°C temperature coefficient.
- What is the settling time of the AD5640CRMZ-1?
The settling time is typically 10 µs for a ¼ to ¾ scale change.
- Is the AD5640CRMZ-1 RoHS compliant?
Yes, the AD5640CRMZ-1 is lead-free and RoHS compliant.
- What package type is the AD5640CRMZ-1 available in?
The device is available in an 8-lead MSOP package.
