Overview
The AD5640CRMZ-1REEL7, 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 AD5640 features an on-chip 1.25 V or 2.5 V reference with a 5 ppm/°C temperature coefficient, ensuring stable output voltage. It operates on a single 3 V or 5 V power supply and is available in compact 8-lead MSOP packages.
Key Specifications
| Parameter | Value | Unit | Conditions/Comments |
|---|---|---|---|
| Resolution | 14 | Bits | - |
| Relative Accuracy | ±8 to ±16 | LSB | A, B, C Grades |
| Differential Nonlinearity | ±0.5 to ±1 | LSB | A, B, C Grades |
| Output Voltage Range | 0 to VDD | V | - |
| Output Voltage Settling Time | 8 µs (typ), 10 µs (max) | µs | ¼ to ¾ scale change settling to ±2 LSB |
| Slew Rate | 1.5 V/µs | V/µs | ¼ to ¾ scale |
| Power Supply | 3 V to 5.5 V | V | - |
| Power Consumption (Normal Mode) | 0.55 mA (typ), 1 mA (max) @ 5 V | mA | VDD = 4.5 V to 5.5 V |
| Power Consumption (Power-Down Mode) | 480 nA @ 5 V, 200 nA @ 3 V | nA | - |
Key Features
- Low Power Consumption: The AD5640 operates with low power consumption, making it suitable for battery-powered devices. It consumes 2.5 mW at 5 V and reduces to 1 μW in power-down mode.
- Precision On-Chip Reference: The device includes an internal 1.25 V or 2.5 V reference with a 5 ppm/°C temperature coefficient, ensuring high accuracy and stability.
- Rail-to-Rail Output: The on-chip precision output amplifier allows for rail-to-rail output swing, enhancing the device's versatility.
- Power-On Reset and Power-Down Functions: The device features a power-on reset circuit and multiple power-down functions, ensuring controlled startup and minimal power consumption when not in use).
- Compact Packaging: Available in 8-lead MSOP packages, making it ideal for space-constrained applications).
- High-Speed Serial Interface: Supports a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz).
Applications
- Process Control: Suitable for precision control in industrial processes due to its high accuracy and stability).
- Data Acquisition Systems: Ideal for data acquisition systems requiring precise analog output signals).
- Portable Battery-Powered Instruments: Low power consumption makes it suitable for portable battery-powered instruments).
- Digital Gain and Offset Adjustment: Can be used for adjusting gain and offset in various digital systems).
- Programmable Voltage and Current Sources: Can be configured as programmable voltage and current sources due to its precision output).
- Programmable Attenuators: Useful in applications requiring programmable attenuation of signals).
Q & A
- What is the resolution of the AD5640CRMZ-1REEL7?
The AD5640CRMZ-1REEL7 has a resolution of 14 bits).
- What is the typical power consumption of the AD5640CRMZ-1REEL7 in normal mode?
The typical power consumption is 0.55 mA at 5 V).
- What is the power consumption in power-down mode?
The power consumption in power-down mode is 480 nA at 5 V and 200 nA at 3 V).
- What is the output voltage range of the AD5640CRMZ-1REEL7?
The output voltage range is from 0 to VDD (the supply voltage)).
- What type of packaging is available for the AD5640CRMZ-1REEL7?
The device is available in 8-lead MSOP packages).
- What is the maximum clock rate for the serial interface?
The serial interface operates at clock rates up to 30 MHz).
- Does the AD5640CRMZ-1REEL7 have a power-on reset feature?
Yes, the device features a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale).
- What are some common applications of the AD5640CRMZ-1REEL7?
Common applications include process control, data acquisition systems, portable battery-powered instruments, digital gain and offset adjustment, and programmable voltage and current sources).
- What is the slew rate of the AD5640CRMZ-1REEL7?
The slew rate is 1.5 V/µs for a ¼ to ¾ scale change).
- Is the AD5640CRMZ-1REEL7 guaranteed to be monotonic by design?
Yes, the device is guaranteed to be monotonic by design).
