MAX5381:Low-Cost, Low-Power, 8-Bit DACs with 2-Wire Serial Interface in SOT23

Lowest-Cost, Smallest DAC with On-Chip Reference

The MAX5380/MAX5381/MAX5382 are low-cost, 8-bit digital-to-analog converters (DACs) in miniature 5-pin SOT23 packages, with a simple 2-wire serial interface that allows communication with multiple devices. The MAX5380 has an internal +2V reference and operates from a +2.7V to +3.6V supply. The MAX5381 has an internal +4V reference and operates from a +4.5V to +5.5V supply. The MAX5382 operates over the full +2.7V to +5.5V supply range and has an internal reference equal to 0.9 x VDD. The fast-mode I²C*-compatible serial interface allows communication at data rates up to 400kbps, minimizing board space and reducing interconnect complexity in many applications. Each device is available with one of four factory-preset addresses (see Selector Guide). These DACs also include an output buffer, a low-power shutdown mode, and a power-on reset that ensures the DAC outputs are at zero when power is initially applied. In shutdown mode, supply current is reduced to less than 1µA and the output is pulled down to GND with a 10kΩ resistor.

Key Features
  • 8-Bit Accuracy in a Miniature 5-Pin SOT23
  • Wide +2.7V to +5.5V Supply Range (MAX5382)
  • Low 230µA max Supply Current
  • 1µA Shutdown Mode
  • Buffered Output Drives Resistive Loads
  • Low-Glitch Power-On Reset to Zero DAC Output
  • Fast I²C-Compatible Serial Interface
  • <±5% Full-Scale Error (MAX5382)
  • <±1LSB max INL/DNL
MAX5380, MAX5381, MAX5382: Typical Operating Circuit
MAX5380, MAX5381, MAX5382: Typical Operating Circuit
Applications/Uses
  • Automatic Gain Control
  • Automatic Offset Adjustment
  • Automatic Tuning (VCO)
  • Power-Amp Bias Control
  • Programmable Threshold Levels
DataSheet
titleDownload file
MAX5380-MAX5382 Data SheetMAX5380-MAX5382.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
MAX538081Voltage- BufferedInt.1Serial - I2C2.73.60.2320SOT/5-40 to +85$0.86 @1k
MAX53814.55.5SOT/5$0.93 @1k
MAX53822.75.5SOT/5$0.93 @1k
Design kits & evaluation modules
Related Products
  • MAX5385:Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23
  • MAX5384:Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5381LEUKNo Longer AvailableMAX5381LEUK+SOT,;5 pin;9 mm²-40°C to +85°CNo
MAX5381LEUK+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX5381LEUK+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX5381LEUK-TNo Longer AvailableMAX5381LEUK+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX5381MEUK+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX5381MEUK+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX5381MEUK-TNo Longer AvailableMAX5381MEUK+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX5381NEUK+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX5381NEUK+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX5381NEUK-TNo Longer AvailableMAX5381NEUK+TSOT,;5 pin;9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5381PEUK+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX5381PEUK+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX5381PEUK-TNo Longer AvailableMAX5381PEUK+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX5380-MAX5382.pdf MAX5382
Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface MAX5492
Reduce the Chances of Human Error: Part 1, Power and Ground MAX5481
Digital Adjustment of DC-DC Converter Output Voltage in Portable Applications MAX5466
MAX5380-MAX5382.pdf MAX5382