MAX5700
Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and SPI Interface
Show MoreFeature-Rich, 2-Channel DAC Family with Internal Voltage Reference and SPI Interface
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- Two High-Accuracy DAC Channels
- 12-Bit Accuracy Without Adjustment
- ±1 LSB INL Buffered Voltage Output
- Monotonic Over All Operating Conditions
- Independent Mode Settings for Each DAC
- Three Precision Selectable Internal References
- 2.048V, 2.500V, or 4.096V
- Internal Output Buffer
- Rail-to-Rail Operation with External Reference
- 4.5µs Settling Time
- Outputs Directly Drive 2kΩ Loads
- Small 5mm x 3mm 10-Pin µMAX or Ultra-Small 3mm x 3mm 10-Pin TDFN Package
- Wide 2.7V to 5.5V Supply Range
- Separate 1.8V to 5.5V VDDIO Power-Supply Input
- 50MHz 3-Wire SPI/QSPI/MICROWIRE/DSP-Compatible Serial Interface
- Power-On-Reset to Zero-Scale DAC Output
- Active-Low CLR For Asynchronous Control
- Three Software-Selectable Power-Down Output Impedances
- 1kΩ, 100kΩ, or High Impedance
- Low 330µA Supply Current at 3V VDD
The MAX5700/MAX5701/MAX5702 2-channel, low-power, 8-/10-/12-bit, voltage-output digital-to-analog converters (DACs) include output buffers and an internal reference that is selectable to be 2.048V, 2.500V, or 4.096V. The MAX5700/MAX5701/MAX5702 accept a wide supply voltage range of 2.7V to 5.5V with extremely low power (1.5mW) consumption to accommodate most low-voltage applications. A precision external reference input allows rail-to-rail operation and presents a 100kΩ (typ) load to an external reference.
The MAX5700/MAX5701/MAX5702 have an a 50MHz 3-wire SPI/QSPI™/MICROWIRE®/DSP-compatible serial interface. The DAC output is buffered and has a low supply current of less than 250µA (max) per channel and a low offset error of ±0.5mV (typ). On power-up, the MAX5700/MAX5701/MAX5702 reset the DAC outputs to zero, providing additional safety for applications that drive valves or other transducers which need to be off on power-up. The internal reference is initially powered down to allow use of an external reference. The MAX5700/MAX5701/MAX5702 allow simultaneous output updates using software LOAD commands.
A clear logic input (active-low CLR) allows the contents of the CODE and the DAC registers to be cleared asynchronously and sets the DAC outputs to zero. The MAX5700/MAX5701/MAX5702 are available in a 10-pin µMAX® and an ultra-small, 10-pin TDFN package and are specified over the -40°C to +125°C temperature range.
Applications
- Automatic Tuning and Optical Control
- Data Acquisition
- Gain and Offset Adjustment
- Portable Instrumentation
- Power Amplifier Control and Biasing
- Process Control and Servo Loops
- Programmable Voltage and Current Sources
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MAX5700
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Evaluation Kits 1
MAX5X02EVKIT
Evaluation Kit for the MAX5700, MAX5701, MAX5702A/B, MAX5800, MAX5801, and MAX5802A/B
Product Detail
Applications
- Automatic Tuning and Optical Control
- Data Acquisition
- Gain and Offset Adjustment
- Portable Instrumentation
- Power Amplifier Control and Biasing
- Process Control and Servo Loops
- Programmable Voltage and Current Sources