Overview
The AD5621ACPZ-RL7, 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 a tiny 6-lead LFCSP package. The AD5621 is designed for applications requiring high precision and low power, making it ideal for level-setting requirements such as generating bias or control voltages in space-constrained and power-sensitive environments.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Resolution | 12 Bits | ||||
| Relative Accuracy (INL) | ±6 | ±1 | LSB | A Grade and B Grade respectively | |
| Differential Nonlinearity (DNL) | ±0.5 | ±0.5 | LSB | A Grade and B Grade respectively | |
| Zero-Code Error | 0.5 | mV | All 0s loaded to DAC register | ||
| Full-Scale Error | ±0.5 | mV | All 1s loaded to DAC register | ||
| Offset Error | ±0.063 | mV | |||
| Gain Error | ±0.0004 | %FSR | |||
| Power Supply Range | 2.7 | 5.5 | V | ||
| Current Consumption (Normal Mode) | 75 | 100 | µA | VDD = 4.5 V to 5.5 V | |
| Power-Down Current | 0.2 | µA | At 3 V | ||
| Output Voltage Range | 0 | VDD | V | ||
| Slew Rate | 0.5 | V/µs | |||
| Serial Interface Clock Rate | 30 | MHz | |||
Key Features
- Low Power Consumption: Typically 75 µA at 5 V, making it suitable for battery-operated devices.
- Small Package: Available in 6-lead LFCSP and SC70 packages.
- High Precision Output: On-chip precision output amplifier allows rail-to-rail output swing.
- Versatile Serial Interface: Compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz.
- Power-On Reset and Brownout Detection: Ensures the DAC output powers up to 0 V and remains there until a valid write to the device takes place.
- Power-Down Capability: Reduces current consumption to typically 0.2 µA at 3 V.
- Guaranteed Monotonic by Design: Ensures that the output voltage always increases or remains the same for increasing digital input codes.
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 in various signal processing applications.
- Programmable Voltage and Current Sources: Can be configured to provide variable output voltages or currents.
- Programmable Attenuators: Useful in applications requiring adjustable signal attenuation.
Q & A
- What is the resolution of the AD5621ACPZ-RL7?
The AD5621ACPZ-RL7 has a resolution of 12 bits.
- What is the typical current consumption of the AD5621ACPZ-RL7 at 5 V?
The typical current consumption is 75 µA at 5 V.
- What are the package options available for the AD5621ACPZ-RL7?
The device is available in 6-lead LFCSP and SC70 packages.
- What is the maximum clock rate of the serial interface?
The serial interface operates at clock rates up to 30 MHz.
- Does the AD5621ACPZ-RL7 have a power-down feature?
- What is the output voltage range of the AD5621ACPZ-RL7?
The output voltage range is from 0 V to VDD.
- Is the AD5621ACPZ-RL7 guaranteed to be monotonic by design?
- What are some common applications of the AD5621ACPZ-RL7?
- What is the slew rate of the AD5621ACPZ-RL7?
- Does the AD5621ACPZ-RL7 have brownout detection?
