MAX5804:Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface

Feature-Rich, 1-Channel DAC Family

The MAX5803/MAX5804/MAX5805 single-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 MAX5803/MAX5804/MAX5805 accept a wide supply voltage range of 2.7V to 5.5V with extremely low power (< 1mW) 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 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.

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
MAX5803, MAX5804, MAX5805: Functional Diagram
MAX5803, MAX5804, MAX5805: Functional Diagram
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
DataSheet
titleDownload file
MAX5803-MAX5805 Data SheetMAX5803-MAX5805.pdf
Parametrics
Part NumberResolution
(bits)
ChannelsOutput TypeReferenceINL
(±LSB)
InterfaceSupply Range
(V)
Supply Range
(V)
ICC
(mA)
Settling Time
(µs)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
maxminmaxmaxtypSee Notes
MAX580381Voltage- BufferedInt./Ext.0.25Serial - I2C2.75.50.192.8µMAX/10
TDFN/10
-40 to +125$0.75 @1k
MAX5804100.55.2µMAX/10
TDFN/10
$0.95 @1k
MAX58051216.3µMAX/10
TDFN/10
$1.20 @1k
Design kits & evaluation modules
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5804ATB+TActiveTDFN,;10 pin;6 mm²-40°C to +125°CLead Free
MAX5804AUB+ActiveµMAX,;10 pin;15.4 mm²-40°C to +125°CLead Free
MAX5804AUB+TActiveµMAX,;10 pin;15.4 mm²-40°C to +125°CLead Free
MAX5803-MAX5805.pdf MAX5805
MAX5803-MAX5805_cn.pdf MAX5805
MAX5803-MAX5805_cn.pdf MAX5804