AD7945 +3.3 V/+5 V Multiplying 12-Bit DAC With a Parallel Interface

The AD7943, AD7945 and AD7948 are fast 12-bit multiplying DACs that operate from a single +5 V supply (Normal Mode) and a single +3.3 V to +5 V supply (Biased Mode). The AD7943 has a serial interface, the AD7945 has a 12-bit parallel interface, and the AD7948 has an 8-bit byte interface. They will replace the industry-standard AD7543, AD7545 and AD7548 in many applications, and they offer superior speed and power consumption performance.

The AD7943 is available in 16-pin DIP, 16-pin SOP (Small Outline Package) and 20-pin SSOP (Shrink Small Outline Package).

The AD7945 is available in 20-pin DIP, 20-pin SOP and 20-pin SSOP.

The AD7948 is available in 20-pin DIP, 20-pin SOP and 20-pin SSOP.

Features and Benefits
  • 12-Bit Multiplying DACs
  • 0.5 LSBs INL and DNL
  • Fast Interface:
    40 ns Strobe Pulsewidth (AD7943)
    40 ns Write Pulsewidth (AD7945, A7948)
  • Guaranteed Specifications wth +3.3 V/+5 Supply
  • Low Power: 5 µW typ
  • Low Glitch: 60 nV-s with Amplifier Connected
  • Fast Settling: 600 ns to 0.01% with AD843
Digital to Analog Converters
Data Sheets
Documentnote
AD7943/AD7945/AD7948: +3.3 V/+5 V Multiplying 12-Bit DACs Data Sheet (Rev. B)PDF 329 kB
Application Notes
Documentnote
AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (Rev. 0)PDF 246 kB
AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1PDF 1295 kB
AN-137: A Digitally Programmable Gain and Attenuation Amplifier DesignPDF 52 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD7945ANZ-B Production20 ld PDIPOTH 18-40 to 85C5.344.53Y
AD7945ARS-B Last Time Buy20 ld SSOPOTH 66-40 to 85C00N
AD7945ARSZ-B Production20 ld SSOPOTH 66-40 to 85C4.714Y
AD7945ARSZ-BREEL Production20 ld SSOPREEL 1500-40 to 85C04Y
AD7945BN Last Time Buy20 ld PDIPOTH 18-40 to 85C00N
AD7945BNZ Production20 ld PDIPOTH 18-40 to 85C5.344.53Y
AD7945BR Production20 ld SOIC - WideOTH 37-40 to 85C00N
AD7945BR-REEL Production20 ld SOIC - WideREEL 1000-40 to 85C04.62N
AD7945BRS Last Time Buy20 ld SSOPOTH 66-40 to 85C00N
AD7945BRS-REEL Last Time Buy20 ld SSOPREEL 1500-40 to 85C00N
AD7945BRSZ Production20 ld SSOPOTH 66-40 to 85C4.714Y
AD7945BRSZ-REEL Production20 ld SSOPREEL 1500-40 to 85C04Y
AD7945BRZ Production20 ld SOIC - WideOTH 37-40 to 85C4.714Y
AD7945BRZ-REEL Production20 ld SOIC - WideREEL 1000-40 to 85C04Y
Reference Materials
AD7943/AD7945/AD7948: +3.3 V/+5 V Multiplying 12-Bit DACs Data Sheet (Rev. B) ad7943
AN-912: 用平衡电流输出DAC驱动中心抽头变压器[中文版] (Rev. 0) ad7524
AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (Rev. 0) ad7524
AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1 ad7524
AN-137: A Digitally Programmable Gain and Attenuation Amplifier Design ad7524
Digital to Analog Converters ICs Solutions Bulletin ad5590
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