AD7538 LC2MOS Microprocessor-Compatible 14-Bit DAC

The DAC is loaded by a single 14-bit wide word using standard chip select and memory write logic. Double buffering, which is optional using LDAC, allows simultaneous updates in a system containing multiple AD7538s. A novel low leakage configuration enables the AD7538 to exhibit excellent output leakage current characteristics over the specified temperature range. The AD7538 is manufactured using the linear-compatible CMOS (LC2MOS) process. It is speed compatible with most microprocessors and accepts TTL or CMOS logic level inputs.

The AD7538 is a 14-bit monolithic CMOS digital-to-analog converter (DAC) that uses laser trimmed thin-film resistors to achieve excellent linearity.

The DAC is loaded by a single 14-bit wide word using standard chip select and memory write logic. Double buffering, which is optional using LDAC, allows simultaneous updates in a system containing multiple AD7538s.

A novel low leakage configuration enables the AD7538 to exhibit excellent output leakage current characteristics over the specified temperature range.

The AD7538 is manufactured using the linear-compatible CMOS (LC2MOS) process. It is speed compatible with most microprocessors and accepts TTL or CMOS logic level inputs.

Features and Benefits
  • All grades 14-bit monotonic over the full temperature range
  • Low cost, 14-bit upgrade for 12-bit systems
  • 14-bit parallel load with double buffered inputs
  • Small 24-pin, 0.30” DIP and SOIC
  • Low output leakage (<20 nA) over the full temperature range
Digital to Analog Converters
Data Sheets
Documentnote
AD7538: LC2MOS Microprocessor-Compatible 14-Bit DAC Data Sheet (Rev. B)PDF 148 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
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD7538JR Last Time Buy24 ld SOIC - WideOTH 310 to 70C00N
AD7538JRZ Production24 ld SOIC - WideOTH 310 to 70C13.4311.29Y
AD7538JRZ-REEL Production24 ld SOIC - WideREEL 10000 to 70C011.29Y
AD7538KNZ Production24 ld PDIPOTH 150 to 70C20.317.03Y
AD7538KR Production24 ld SOIC - WideOTH 310 to 70C19.716.52N
AD7538KR-REEL Last Time Buy24 ld SOIC - WideREEL 10000 to 70C014.47N
AD7538KRZ Production24 ld SOIC - WideOTH 310 to 70C17.9115.02Y
Reference Materials
AD7538: LC2MOS Microprocessor-Compatible 14-Bit DAC Data Sheet (Rev. B) ad7538
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
Digital to Analog Converters ICs Solutions Bulletin ad5590