Overview
The AD5621BKSZ-REEL7, produced by Analog Devices Inc., is a member of the nanoDAC® family. It is a single, 12-bit, buffered voltage output Digital-to-Analog Converter (DAC) that operates from a single 2.7 V to 5.5 V supply. This device is known for its low power consumption, typically 75 µA at 5 V, and is available in tiny LFCSP and SC70 packages. The on-chip precision output amplifier allows for rail-to-rail output swing, making it ideal for level-setting requirements in space-constrained and power-sensitive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 12 Bits | ||||
| Relative Accuracy (INL) | ±6 | ±1 LSB | |||
| Differential Nonlinearity (DNL) | ±0.5 | ±0.5 LSB | |||
| Zero-Code Error | 0.5 mV | All 0s loaded to DAC register | |||
| Full-Scale Error | ±0.5 mV | All 1s loaded to DAC register | |||
| Output Voltage Range | 0 | VDD | V | ||
| Output Voltage Settling Time | 6 µs | Code ¼ scale to ¾ scale | |||
| Slew Rate | 0.5 V/µs | ||||
| Power Supply Voltage (VDD) | 2.7 | 5.5 | V | ||
| Current Consumption (IDD) | 75 | 100 | µA | VDD = 4.5 V to 5.5 V | |
| Power-Down Current | 0.2 µA | At 3 V | |||
Key Features
- Low Power Consumption: Typically 75 µA at 5 V, making it suitable for battery-operated devices.
- Small Package: Available in LFCSP and SC70 packages.
- Rail-to-Rail Output: On-chip precision output amplifier allows for rail-to-rail output swing.
- High-Speed Serial Interface: Compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards, with clock rates up to 30 MHz.
- Power-Down Capability: Reduces current consumption to typically 0.2 µA at 3 V.
- Power-On Reset: Ensures the DAC output powers up to 0 V and remains there until a valid write to the device takes place.
- Guaranteed Monotonic by Design: Ensures that the output voltage always increases or remains the same for increasing digital input codes.
- SYNC Interrupt Facility: Provides an interrupt signal during the write cycle.
Applications
- Voltage Level Setting: Ideal for generating bias or control voltages.
- Portable Battery-Powered Instruments: Suitable due to low power consumption.
- Digital Gain and Offset Adjustment: Can be used to adjust gain and offset in various circuits.
- Programmable Voltage and Current Sources: Can be used to create programmable sources.
- Programmable Attenuators: Useful in applications requiring adjustable attenuation.
Q & A
- What is the resolution of the AD5621BKSZ-REEL7?
The AD5621BKSZ-REEL7 has a resolution of 12 bits.
- What is the typical current consumption of the AD5621BKSZ-REEL7 at 5 V?
The typical current consumption is 75 µA at 5 V.
- What are the package options for the AD5621BKSZ-REEL7?
The device is available in LFCSP and SC70 packages.
- What is the output voltage range of the AD5621BKSZ-REEL7?
The output voltage range is from 0 V to VDD.
- What is the slew rate of the AD5621BKSZ-REEL7?
The slew rate is 0.5 V/µs.
- Is the AD5621BKSZ-REEL7 guaranteed to be monotonic by design?
Yes, the device is guaranteed to be monotonic by design.
- What is the power-down current consumption of the AD5621BKSZ-REEL7 at 3 V?
The power-down current consumption is typically 0.2 µA at 3 V.
- What interface standards is the AD5621BKSZ-REEL7 compatible with?
The device is compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards.
- What is the maximum clock rate for the serial interface of the AD5621BKSZ-REEL7?
The maximum clock rate is up to 30 MHz.
- Does the AD5621BKSZ-REEL7 have a power-on reset feature?
Yes, the device has a power-on reset feature that ensures the DAC output powers up to 0 V.
