Product Details
Key Features
Applications/Uses
Resolution (bits) | 12 |
# Channels | 1 |
Interface | Serial - I2C |
Output Type | Voltage- Buffered |
Reference | Int./Ext. |
INL (±LSB) (max) | 1 |
Supply Range (V) (min) | 2.7 |
Supply Range (V) (max) | 5.5 |
ICC (mA) (max) | 0.19 |
Settling Time (µs) (typ) | 6.3 |
Package/Pins | TDFN/10 UMAX/10 |
Oper. Temp. (°C) | -40 to +125 |
Budgetary Price (See Notes) | 1.26 |
Simplified Block Diagram
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Parameters
Resolution (bits) | 12 |
# Channels | 1 |
Interface | Serial - I2C |
Output Type | Voltage- Buffered |
Reference | Int./Ext. |
INL (±LSB) (max) | 1 |
Supply Range (V) (min) | 2.7 |
Supply Range (V) (max) | 5.5 |
ICC (mA) (max) | 0.19 |
Settling Time (µs) (typ) | 6.3 |
Package/Pins | TDFN/10 UMAX/10 |
Oper. Temp. (°C) | -40 to +125 |
Budgetary Price (See Notes) | 1.26 |
Key Features
- Single High-Accuracy DAC Channel
- 12-Bit Accuracy Without Adjustments
- ±1 LSB INL Buffered Voltage Output
- Guaranteed Monotonic Over All Operating Conditions
- Three Precision Selectable Internal References
- 2.048V, 2.500V, or 4.096V
- Internal Output Buffer
- Rail-to-Rail Operation with External Reference
- 6.3µs Settling Time
- Output Directly Drives 2kΩ Loads
- Small, 10-Pin, 2mm x 3mm TDFN and 3mm x 5mm µMAX Packages
- Wide 2.7V to 5.5V Supply Range
- Flexible 1.8V to 5.5V VDDIO
- Fast 400kHz, I2C-Compatible, 2-Wire Serial Interface with Readback
- Power-On-Reset to Zero-Scale DAC Output
- User-Configurable Asynchronous I/O Functions: Active-Low CLR, Active-Low LDAC, Active-Low GATE
- Three Software-Selectable Power-Down Output Impedances: 1kΩ, 100kΩ, or High Impedance
- Low 155µA DAC Supply Current at 3V
Applications/Uses
- 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
Description
The MAX5803/MAX5804/MAX5805 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 155µA (typical at 3V) and a low offset error of ±0.5mV (typical). On power-up, the MAX5803/MAX5804/MAX5805 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 MAX5803/MAX5804/MAX5805 include a user-configurable active-low asynchronous input, active-low AUX for additional flexibility. This input can be programmed to asynchronously clear (active-low CLR) or temporarily gate (active-low GATE) the DAC output to a user-programmable value. A dedicated active-low asynchronous LDAC input is also included. This allows simultaneous output updates of multiple devices.
The MAX5803/MAX5804/MAX5805 are available in 10-pin TDFN/µMAX® packages and are specified over the -40°C to +125°C temperature range.
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .