Overview
The AD5621BKSZ-500RL7, produced by Analog Devices Inc., is a 12-bit, single-channel, buffered voltage output digital-to-analog converter (DAC) from the nanoDAC® family. This device operates from a single 2.7 V to 5.5 V supply and is known for its low power consumption, typically 75 µA at 5 V, making it ideal for battery-powered and portable applications. The AD5621BKSZ-500RL7 comes in a compact 6-lead SC70 package, enhancing its suitability for space-constrained designs.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 12 Bits | ||
| Supply Voltage | 2.7 V to 5.5 V | V | |
| Current Consumption (Normal Mode) | 75 µA (typical at 5 V) | µA | DAC active, excluding load current |
| Current Consumption (Power-Down Mode) | 0.2 µA (typical at 3 V) | µA | |
| Output Voltage Range | 0 to VDD | V | |
| Output Voltage Settling Time | 6 µs (code ¼ scale to ¾ scale) | µs | |
| Slew Rate | 0.5 V/µs | V/µs | |
| Relative Accuracy (INL) | ±6 LSB | LSB | |
| Differential Nonlinearity (DNL) | ±0.5 LSB | LSB | Guaranteed monotonic by design |
| Serial Interface Clock Rate | Up to 30 MHz | MHz | Compatible with SPI, QSPI, MICROWIRE, and DSP interface standards |
Key Features
- Low Power Consumption: Typically 75 µA at 5 V, making it suitable for battery-powered applications.
- Compact Packaging: Available in 6-lead SC70 and LFCSP packages.
- Rail-to-Rail Output: On-chip precision output amplifier allows rail-to-rail output swing.
- High-Speed Serial Interface: Operates at clock rates up to 30 MHz, compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- Power-Down Capability: Reduces current consumption to typically 0.2 µA at 3 V.
- Software-Selectable Output Loads: In power-down mode, controlled via the serial interface.
- Power-On Reset with Brownout Detection: Ensures the DAC output powers up to 0 V and remains there until a valid write occurs.
Applications
- Portable Battery-Operated Equipment: Ideal due to low power consumption and compact packaging.
- Level-Setting Requirements: Generating bias or control voltages in space-constrained and power-sensitive applications.
- Programmable Voltage and Current Sources: Suitable for applications requiring precise voltage or current output.
- Programmable Attenuators: Can be used in various signal processing and control systems.
Q & A
- What is the resolution of the AD5621BKSZ-500RL7 DAC?
The AD5621BKSZ-500RL7 has a resolution of 12 bits.
- What is the supply voltage range for the AD5621BKSZ-500RL7?
The supply voltage range is from 2.7 V to 5.5 V.
- How much current does the AD5621BKSZ-500RL7 typically consume in normal operation?
Typically 75 µA at 5 V.
- What is the output voltage range of the AD5621BKSZ-500RL7?
The output voltage range is from 0 to VDD.
- What is the slew rate of the AD5621BKSZ-500RL7?
The slew rate is 0.5 V/µs.
- Is the AD5621BKSZ-500RL7 guaranteed to be monotonic?
Yes, it is guaranteed to be monotonic by design.
- What is the maximum clock rate of the serial interface for the AD5621BKSZ-500RL7?
Up to 30 MHz.
- What interface standards is the AD5621BKSZ-500RL7 compatible with?
It is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- How much current does the AD5621BKSZ-500RL7 consume in power-down mode?
Typically 0.2 µA at 3 V.
- Does the AD5621BKSZ-500RL7 have a power-on reset feature?
Yes, it includes a power-on reset with brownout detection.
