MAX512:Low-Cost, Triple, 8-Bit Voltage-Output DACs with Serial Interface

Triple, Serial, Voltage-Output DACS in a SO Package

The MAX512/MAX513 contain three 8-bit, voltage-output digital-to-analog converters (DAC A, DAC B, and DAC C). Output buffer amplifiers for DACs A and B provide voltage outputs while reducing external component count. The output buffer for DAC A can source or sink 5mA to within 0.5V of VDD or VSS. The buffer for DAC B can source or sink 0.5mA to within 0.5V of VDD or VSS. DAC C is unbuffered, providing a third voltage output with increased accuracy. The MAX512 operates with a single +5V ±10% supply, and the MAX513 operates with a +2.7V to +3.6V supply. Both devices can also operate with split supplies. The 3-wire serial interface has a maximum operating frequency of 5MHz and is compatible with SPI™, QSPI™, and Microwire™. The serial input shift register is 16 bits long and consists of 8 bits of DAC input data and 8 bits for DAC selection and shutdown. DAC registers can be loaded independently or in parallel at the positive edge of CS. A latched logic output is also available for auxiliary control. Ultra-low power consumption and small packages (14-pin DIP/SO) make the MAX512/MAX513 ideal for portable and battery-powered applications. Supply current is only 1mA, dropping to less than 1µA in shutdown. Any of the three DACs can be independently shut down. In shutdown mode, the DAC's R-2R ladder network is disconnected from the reference input, minimizing system power consumption.

Key Features
  • Operate from a Single +5V (MAX512) or +3V (MAX513) Supply, or from Bipolar Supplies
  • Low Power Consumption
    • 1mA Operating Current
    • <1µA Shutdown Current
  • Unipolar or Bipolar Outputs
  • 5MHz, 3-Wire Serial Interface
  • SPI, QSPI, and Microwire Compatible
  • Two Buffered, Bipolar-Output DACs (DACs A/B)
  • Independently Programmable Shutdown Mode
  • Space-Saving 14-Pin SO/DIP Packages
  • Pin and Software Reset
MAX512, MAX513: Functional Diagram
MAX512, MAX513: Functional Diagram
Applications/Uses
  • Digital Gain and Offset Control
  • Programmable Attenuators
  • Programmable Current Sources
  • Programmable Voltage Sources
  • RF Digitally Adjustable Bias Circuits
  • VCO Tuning
DataSheet
titleDownload file
MAX512-MAX513 Data SheetMAX512-MAX513.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
MAX51283Voltage- BufferedExt.1.5Serial - SPI4.55.52.870PDIP(N)/14
SOIC(N)/14
-55 to +125
-40 to +85
0 to +70
$3.70 @1k
MAX5132.73.62.5PDIP(N)/14
SOIC(N)/14
$4.15 @500
Quality and Environmental Data
Related Products
  • MAX522:Dual, 8-Bit, Voltage-Output Serial DAC in 8-Pin SO Package
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX512CPDNo Longer AvailableMAX512CPD+PDIP(N),;14 pin;158.4 mm²0°C to +70°CNo
MAX512CPD+ActivePDIP(N),;14 pin;158.4 mm²0°C to +70°CLead Free
MAX512CSDNo Longer AvailableMAX512CSD+SOIC(N),;14 pin;54.2 mm²0°C to +70°CNo
MAX512CSD+ActiveSOIC(N),;14 pin;54.2 mm²0°C to +70°CLead Free
MAX512CSD+TActiveSOIC(N),;14 pin;54.2 mm²0°C to +70°CLead Free
MAX512CSD-TNo Longer AvailableMAX512CSD+TN.SO;14 pin0°C to +70°CSee data sheet
MAX512EPDNo Longer AvailableMAX512EPD+PDIP(N),;14 pin;158.4 mm²-40°C to +85°CNo
MAX512EPD+ActivePDIP(N),;14 pin;158.4 mm²-40°C to +85°CLead Free
MAX512ESDNo Longer AvailableMAX512ESD+SOIC(N),;14 pin;54.2 mm²-40°C to +85°CNo
MAX512ESD+ActiveSOIC(N),;14 pin;54.2 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX512ESD+TActiveSOIC(N),;14 pin;54.2 mm²-40°C to +85°CLead Free
MAX512ESD-TNo Longer AvailableMAX512ESD+TSOIC(N),;14 pin;54.2 mm²-40°C to +85°CNo
MAX512-MAX513.pdf MAX513
MAX512.pdf MAX512
MAX512-MAX513.pdf MAX513