MAX5815
Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and I²C Interface
Complete 4-Channel Devices in Small Packages
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Overview
Features and Benefits
- Four High-Accuracy DAC Channels
- 12-Bit Accuracy Without Adjustment
- ±1 LSB INL Buffered Voltage Output
- Guaranteed 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 × 4.4mm 14-Pin TSSOP or Ultra-Small 1.6mm × 2.2mm 12-Bump WLP Package
- Wide 2.7V to 5.5V Supply Range
- Separate 1.8V to 5.5V VDDIO Power-Supply Input
- Fast 400kHz I²C-Compatible, 2-Wire Serial Interface
- Power-On-Reset to Zero-Scale DAC Output
- Active-Low LDAC and Active-Low CLR For Asynchronous Control
- Three Software-Selectable Power-Down Output Impedances
- 1kΩ, 100kΩ, or High Impedance
Product Details
The MAX5813/MAX5814/MAX5815 4-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 MAX5813/MAX5814/MAX5815 accept a wide supply voltage range of 2.7V to 5.5V with extremely low power (3mW) 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 MAX5813/MAX5814/MAX5815 have an I²C-compatible, 2-wire interface that operates at clock rates up to 400kHz. The DAC output is buffered and has a low supply current of less than 250µA per channel and a low offset error of ±0.5mV (typ). On power-up, the MAX5813/ MAX5814/MAX5815 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 MAX5813/MAX5814/MAX5815 allow simultaneous output updates using software LOAD commands or the hardware load DAC logic input (active-low LDAC).
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 MAX5813/MAX5814/MAX5815 are available in a 14-pin TSSOP and an ultra-small, 12-bump WLP 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
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.