MAX543

Serial, CMOS, Multiplying, 12-Bit DAC in 8-Pin Package

Single, Serial, Current-Output DAC in a SO Package


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Description

The MAX543 is a 12-bit, current-output, multiplying digital-to-analog converter (DAC) that comes in space-saving 8-pin DIP and 8- or 16-pin surface-mount SO packages. Its 3-wire serial interface saves additional board space and also results in low power dissipation. When used with microprocessors (µPs) with a serial port, the MAX543 minimizes the digital noise feedthrough from its input pins to its output. The serial port can be used as a dedicated analog bus and kept inactive while the MAX543 is in use. Serial interfacing also reduces the complexity of opto- or transformer-isolated applications.

The MAX543 contains a 12-bit R-2R type DAC, a serial-in parallel-out shift register, a DAC register and control logic. On the rising edge of the clock (CLK) pulse, the serial input (SRI) data is shifted into the MAX543. When all the data is clocked in, it is transferred into the DAC register by taking the active-low LOAD input low. The MAX 543 is specified with a single power supply of either +5V or +15V. With a +5V supply, the digital inputs are TTL and +5V CMOS compatible. High-voltage CMOS compatibility is maintained with a +15V supply. Maxim’s MAX543 uses low-tempco thin-film resistors laser trimmed to ±¼ LSB linearity and better than ±1 LSB gain accuracy. The digital inputs are protected against electrostatic discharge (ESD) damage and can typically withstand over 5,000V of ESD voltages
MAX543: Functional Diagram MAX543: Functional Diagram Enlarge+

Key Features

  • 12-Bit Accuracy in 8-Pin MiniDIP or SO
  • Fast 3-Wire Serial Interface
  • Low INL and DNL (±1/2 LSB Max)
  • Gain Accuracy to ±1LSB Max
  • Low Gain Tempco (5ppm/°C Max)
  • Operates with +5V or +15V Supplies
  • TTL/CMOS Compatible
  • ESD Protected

Applications/Uses

  • µP-Controlled Systems
  • Automatic Calibration
  • Digitally Controlled Filters
  • Motion-Control Systems
  • Programmable Amplifiers/Attenuators
Part NumberResolution
(bits)
ChannelsOutput TypeReferenceINL
(±LSB)
InterfaceSupply Range
(V)
Supply Range
(V)
Settling Time
(µs)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
maxminmaxtypSee Notes
MAX543 121Current- UnbufferedExt.
0.5
1
Serial - Other11.415.750.25
CDIP/8
PDIP/8
SOIC (N)/8
SOIC (W)/16
-55 to +125
-40 to +85
0 to +70
$6.87 @1k
See All Precision DACs (251)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

App Note 4491 Damage from a Lightning Bolt or a Spark—It Depends on How Tall You Are!
App Note 4490 How Signal Chains and PLCs Impact Our Lives

Quality and Environmental Data

Request Reliability Report for: MAX543 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

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  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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