ADI PM7524FS

The PM-7524 is an 8-bit monolithic multiplying digital-toanalog converter withinput latches. It is compatiblewith all popular 8-bit microprocessors including the 6800,8080,8085, andZ80. Itsloadcycle is similartothatofaRAM'swritecycle.

Tightly controlled thin-film resistor processing provides 1/8 LSB linearity without laser trimming. The design incorporates a matching MOS transistor switch in series with the R-2R ladder terminating resistor and output op amp's feedback resistor. This allows the DAC to achieve an excellent gain tempco and improved power supply rejection.

The PM-7524 exhibits excellent performance on a single +5V to +15V power supply. It is TTL compatible at +5V and dissipates less than 50mW; using 0V or VDD at the digital inputs, the device dissipates less than 50μW at +5V and 150μW at +15V. At +15V it is CMOS compatible.

The improved latch-up resistant design eliminates the need for external protective Schottky diodes.

The PM-7524 is manufactured using thin-film resistors on an advanced oxide-isolated silicon-gate CMOS process.

• ±0.002 LSB Maximum Zero-Scale Error (lLkg 10nA)
• ±1 LSB Maximum Gain Error Over Temperature
• Microprocessor Compatible
• Improved Resistance to ESD
• Latch-up Resistant; No Schottky Diodes Required
• 5mW @ +5V Maximum Power Consumption
• Available in Die Form

• Microprocessor Controlled Circuits
• Precision AGC Circuits
• Bus Structured Instruments
• Function Generators
• Digitally Controlled Attenuators and Power Supplies