Overview
The AD5641BKSZ-500RL7, produced by Analog Devices Inc., is a single, 14-bit, buffered, voltage-out Digital-to-Analog Converter (DAC) that is part of the nanoDAC® family. This device operates from a single 2.7 V to 5.5 V supply, typically consuming 75 µA at 5 V, making it highly suitable for battery-powered and space-constrained applications. The AD5641 is available in tiny 6-lead LFCSP and SC70 packages, which are ideal for portable and power-sensitive designs.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 14 | 14 | 14 | Bits | |
| Relative Accuracy | ±16 | ±4 | LSB | A Grade and B Grade respectively | |
| Differential Nonlinearity | ±1 | ±1 | LSB | Guaranteed monotonic by design | |
| Zero-Code Error | 0.5 | 10 | mV | All 0s loaded to DAC register | |
| Offset Error | ±0.63 | ±10 | mV | ||
| Full-Scale Error | ±0.5 | ±0.5 | mV | All 1s loaded to DAC register | |
| Gain Error | ±0.004 | ±0.037 | % of FSR | ||
| Supply Voltage | 2.7 | 5.5 | V | ||
| Current Consumption | 75 | 100 | µA | At 5 V | |
| Power-Down Current | 0.2 | µA | At 3 V | ||
| Serial Interface Clock Rate | 30 | MHz |
Key Features
- Low Power Operation: The AD5641 operates from a single 2.7 V to 5.5 V supply and consumes a maximum of 100 µA, making it ideal for battery-powered applications.
- On-Chip Output Buffer Amplifier: Allows rail-to-rail output swing with a typical slew rate of 0.5 V/µs.
- 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 0.2 µA at 3 V, with software-selectable output loads while in power-down mode.
- Power-On Reset with Brownout Detection: Ensures the DAC output powers up to 0 V and remains there until a valid write to the device takes place.
Applications
- Voltage Level Setting: Ideal for generating bias or control voltages in various applications.
- Portable Battery-Powered Instruments: Suitable for devices that require low power consumption and compact design.
- Digital Gain and Offset Adjustment: Useful in applications requiring precise voltage adjustments.
- Programmable Voltage and Current Sources: Can be used to create adjustable voltage and current sources.
- Programmable Attenuators: Applicable in systems that need variable attenuation levels.
Q & A
- What is the resolution of the AD5641BKSZ-500RL7?
The AD5641BKSZ-500RL7 has a resolution of 14 bits. - What is the operating voltage range of the AD5641BKSZ-500RL7?
The device operates from a single 2.7 V to 5.5 V supply. - What is the typical current consumption of the AD5641BKSZ-500RL7 at 5 V?
The typical current consumption is 75 µA at 5 V. - What is the power-down current consumption of the AD5641BKSZ-500RL7 at 3 V?
The power-down current consumption is typically 0.2 µA at 3 V. - What serial interface standards is the AD5641BKSZ-500RL7 compatible with?
The device is compatible with SPI®, QSPI™, MICROWIRE™, and DSP interface standards. - What is the maximum clock rate of the serial interface?
The maximum clock rate is up to 30 MHz. - Does the AD5641BKSZ-500RL7 have a power-on reset feature?
Yes, it has a power-on reset circuit with brownout detection. - What are the package options for the AD5641BKSZ-500RL7?
The device is available in 6-lead LFCSP and SC70 packages. - Is the AD5641BKSZ-500RL7 guaranteed to be monotonic?
Yes, the device is guaranteed to be monotonic by design. - What are some typical applications of the AD5641BKSZ-500RL7?
Typical applications include voltage level setting, portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and programmable attenuators.
