DAC312 12-Bit High Speed Multiplying D/A Converter

The DAC312 combines a 9-bit master D/A converter with a 3-bit (MSBs) segment generator to form an accurate 12-bit D/A converter at low cost. This technique guarantees a very uniform step size (up to ±1/2 LSB from the ideal), monotonicity to 12-bits and integral nonlinearity to 0.05% at its differential current outputs. In order to provide the same performance with a 12-bit R-2R ladder design, an integral nonlinearity over temperature of 1/2 LSB (0.012%) would be required. The 250 ns settling time with low glitch energy and low power consumption are achieved by careful attention to the circuit design and stringent process controls. Direct interface with all popular logic families is achieved through the logic threshold terminal. High compliance and low drift characteristics (as low as 10 ppm/°C) are also features of the DAC312 along with an excellent power supply rejection ratio of ±.001% FS/%(Delta)V. Operating over a power supply range of +5/-11 V to ±18 V the device consumes 225 mW at the lower supply voltages with an absolute maximum dissipation of 375 mW at the higher supply levels. With their guaranteed specifications, single chip reliability and low cost, the DAC312 device makes excellent building blocks for A/D converters, data acquisition systems, video display drivers, programmable test equipment and other applications where low power consumption and complete input/output versatility are required.

The DAC312 series of 12-bit multiplying digital-to-analog converters provide high speed with guaranteed performance to 0.012% differential nonlinearity over the full commercial operating temperature range.

The DAC312 combines a 9-bit master D/A converter with a 3-bit (MSBs) segment generator to form an accurate 12-bit D/A converter at low cost. This technique guarantees a very uniform step size (up to ±1/2 LSB from the ideal), monotonicity to 12-bits and integral nonlinearity to 0.05% at its differential current outputs. In order to provide the same performance with a 12-bit R-2R ladder design, an integral nonlinearity over temperature of 1/2 LSB (0.012%) would be required.

The 250 ns settling time with low glitch energy and low power consumption are achieved by careful attention to the circuit design and stringent process controls. Direct interface with all popular logic families is achieved through the logic threshold terminal.

High compliance and low drift characteristics (as low as 10 ppm/°C) are also features of the DAC312 along with an excellent power supply rejection ratio of ±.001% FS/%(Delta)V. Operating over a power supply range of +5/-11 V to ±18 V the device consumes 225 mW at the lower supply voltages with an absolute maximum dissipation of 375 mW at the higher supply levels.

With their guaranteed specifications, single chip reliability and low cost, the DAC312 device makes excellent building blocks for A/D converters, data acquisition systems, video display drivers, programmable test equipment and other applications where low power consumption and complete input/output versatility are required.

Features and Benefits
  • Differential Nonlinearity: ±1/2 LSB
  • Nonlinearity: 0.05%
  • Fast Settling Time: 250 ns
  • High Compliance: -5 V to +10 V
  • Differential Outputs: 0 to 4 mA
  • Guaranteed Monotonicity: 12 bits
  • Low Full-Scale Tempco: 10 ppm/°C
  • Circuit Interface to TTL, CMOS, ECL, PMOS/NMOS
  • Low Power Consumption: 225 mW
  • Industry Standard AM6012 Pinout
  • Available in Die Form
Digital to Analog Converters
Data Sheets
Documentnote
DAC312: 12-Bit High Speed Multiplying D/A Converter Data Sheet (Rev. C)PDF 269 kB
Application Notes
Documentnote
AN-348: Avoiding Passive-Component PitfallsPDF 931 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
DAC312ER Production20 ld CerDIPOTH 180 to 70C23.0919.62N
DAC312FR Production20 ld CerDIPOTH 18-40 to 85C10.979.32N
DAC312HP Last Time Buy20 ld PDIPOTH 18-40 to 85C6.365.39N
DAC312HPZ Production20 ld PDIPOTH 18-40 to 85C5.514.69Y
DAC312HS Production20 ld SOIC - WideOTH 37-40 to 85C5.54.67N
DAC312HSZ Production20 ld SOIC - WideOTH 37-40 to 85C5.014.26Y
DAC312HSZ-REEL Production20 ld SOIC - WideREEL 1000-40 to 85C04.26Y
Reference Materials
DAC312: 12-Bit High Speed Multiplying D/A Converter Data Sheet (Rev. C) dac312
AN-348: Avoiding Passive-Component Pitfalls ad7813
AN-348: 避开无源元件的陷阱 adg901
Digital to Analog Converters ICs Solutions Bulletin ad5590