Overview
The AD5542BR, produced by Analog Devices Inc., is a single, 16-bit, serial-input, voltage-output digital-to-analog converter (DAC). This device operates from a single supply voltage ranging from 2.7 V to 5.5 V, making it versatile for various applications. The AD5542BR is known for its low power consumption, typically 125 µA at 5 V, and its fast settling time of 1 µs. It features a 3-wire or 4-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards. The device includes a power-on reset function to ensure a known state at startup, resetting the output to 0 V in unipolar mode or to −VREF in bipolar mode.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | 5.5 | V | ||
| Current Consumption (IDD) | 125 | 150 | µA | Digital inputs at rails | |
| Power Dissipation | 0.625 | 0.825 | mW | ||
| Settling Time | 1 | µs | |||
| Number of Bits | 16 | ||||
| Output Type | Voltage - Unbuffered | ||||
| Reference Type | External | ||||
| Operating Temperature | -40 | 85 | °C | ||
| INL/DNL (LSB) | ±0.5 | ±0.5 |
Key Features
- Single 16-bit DAC with serial input and voltage output.
- Operates from a single supply voltage of 2.7 V to 5.5 V.
- Low power consumption: typically 125 µA at 5 V.
- Fast settling time: 1 µs.
- 3-wire or 4-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- Power-on reset function to ensure a known state at startup.
- Unbuffered voltage output capable of driving 60 kΩ loads directly.
- Low glitch: 1.1 nV-sec.
- Kelvin sense connections for the reference and analog ground pins to reduce layout sensitivity (AD5542).
- Bipolar operation mode available (AD5542), generating a ±VREF output swing.
Applications
- Digital gain and offset adjustment.
- Automatic test equipment.
- Data acquisition systems.
- Industrial process control.
Q & A
- What is the supply voltage range for the AD5542BR?
The AD5542BR operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- What is the typical current consumption of the AD5542BR at 5 V?
The typical current consumption is 125 µA at 5 V.
- What is the settling time of the AD5542BR?
The settling time is typically 1 µs.
- What type of serial interface does the AD5542BR support?
The AD5542BR supports SPI, QSPI, MICROWIRE, and DSP interface standards.
- Does the AD5542BR have a power-on reset function?
- What is the output type of the AD5542BR?
The output type is unbuffered voltage.
- Can the AD5542BR operate in bipolar mode?
- What are the Kelvin sense connections used for in the AD5542?
The Kelvin sense connections are used for the reference and analog ground pins to reduce layout sensitivity.
- What are some common applications of the AD5542BR?
- What is the operating temperature range of the AD5542BR?
