Overview
The MAX5702BAUB+ is a dual-channel, low-power, 8-/10-/12-bit voltage-output digital-to-analog converter (DAC) produced by Analog Devices Inc./Maxim Integrated. This ultra-small DAC is designed for low-voltage and low-power applications, offering high accuracy and flexibility. It features internal output buffers, a selectable internal reference, and a 50MHz 3-wire SPI/QSPI/MICROWIRE/DSP-compatible serial interface. The device is available in compact packages, making it suitable for a variety of applications requiring precise analog output control.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | - | 8/10/12 | - | - | Bits |
| Supply Voltage Range | - | 2.7 | - | 5.5 | V |
| Power Consumption | - | - | 1.5 | - | mW |
| Internal Reference Options | - | 2.048V, 2.500V, 4.096V | - | - | V |
| Output Buffer Load Regulation | - | - | - | 100kΩ (typ) | Ω |
| Settling Time | - | - | 4.5 | - | µs |
| Output Current per Channel | - | - | < 250 | - | µA |
| Offset Error | - | - | ±0.5 | - | mV |
| Serial Interface | - | - | 50MHz, 3-wire SPI/QSPI/MICROWIRE/DSP-compatible | - | - |
Key Features
- High-Accuracy DAC Channels: 12-bit accuracy without adjustments, ±1 LSB INL buffered voltage output, and monotonic over all operating conditions.
- Selectable Internal References: 2.048V, 2.500V, or 4.096V precision internal references.
- Internal Output Buffer: Allows rail-to-rail operation with an external reference and provides improved load regulation.
- Low Power Consumption: Extremely low power consumption of 1.5mW to accommodate low-voltage applications.
- Compact Packaging: Available in ultra-small 10-pin TDFN and 10-pin µMAX packages.
- Flexible Serial Interface: 50MHz, 3-wire SPI/QSPI/MICROWIRE/DSP-compatible serial interface.
- Power-On-Reset and Asynchronous Control: Power-on-reset to zero-scale DAC output and active-low CLR for asynchronous control.
- Selectable Power-Down Output Impedances: 1kΩ, 100kΩ, or high impedance.
Applications
- Automatic Tuning and Optical Control: Used in applications requiring precise tuning and control.
- Data Acquisition: Suitable for data acquisition systems due to its high accuracy and low noise.
- Gain and Offset Adjustment: Ideal for adjusting gain and offset in various electronic circuits.
- Portable Instrumentation: Used in portable instrumentation due to its low power consumption and compact size.
- Power Amplifier Control and Biasing: Used in power amplifier control and biasing applications.
- Process Control and Servo Loops: Suitable for process control and servo loop applications requiring precise analog output control.
- Programmable Voltage and Current Sources: Used in programmable voltage and current source applications.
Q & A
- What is the resolution of the MAX5702BAUB+ DAC?
The MAX5702BAUB+ is available in 8-bit, 10-bit, and 12-bit resolutions.
- What is the supply voltage range of the MAX5702BAUB+?
The supply voltage range is from 2.7V to 5.5V.
- What are the internal reference options for the MAX5702BAUB+?
The internal reference options are 2.048V, 2.500V, and 4.096V.
- What is the settling time of the MAX5702BAUB+ DAC output?
The settling time is approximately 4.5µs.
- Does the MAX5702BAUB+ support asynchronous control?
Yes, it supports asynchronous control through an active-low CLR input.
- What are the power-down output impedance options for the MAX5702BAUB+?
The options are 1kΩ, 100kΩ, or high impedance.
- What is the typical power consumption of the MAX5702BAUB+?
The typical power consumption is 1.5mW.
- What type of serial interface does the MAX5702BAUB+ use?
The MAX5702BAUB+ uses a 50MHz, 3-wire SPI/QSPI/MICROWIRE/DSP-compatible serial interface.
- What is the output current per channel for the MAX5702BAUB+?
The output current per channel is less than 250µA.
- What are the typical offset errors for the MAX5702BAUB+ DAC outputs?
The typical offset error is ±0.5mV.
