ADI AD7543GKR-REEL

The AD7543 is a precision 12-bit monolithic CMOS multiplying DAC designed for serial interface applications. The DAC's logic circuitry consists of a 12-bit serial-in parallel-out shift register (Register A) and a 12-bit DAC input register (Register B). Serial data at the AD7543 SRI pin is clocked into Register A on the leading or trailing edge (user selected) of the strobe input. Once Register A is full its contents are loaded into Register B under control of the LOAD inputs. Initialization is simplified by the use of the CLR input which provides an asynchronous reset of Register B. Packaged in 16-pin DIP and 20-pin LCCC and PLCC, the AD7543 features excellent gain T.C. (2ppm/°C typ; 5ppm/°C max), +5V operation and latch-free operation. (No protection Schottky Diodes required.) The AD7543, a 12-bit multiplying D/A converter, consists of a highly stable thin film R-2R ladder and twelve N-channel current switches on a monolithic chip. Most applications require the addition of only an output operational amplifier and a voltage or current reference.

• Resolution: 12 Bits
• Nonlinearity: ±1/2LSB Tmin to Tmax
• Low Gain T.C.: 2ppm/°C typ, 5ppm/°C max
• Serial Load on Positive or Negative Strobe
• Asynchronous CLEAR Input for Initialization
• Full 4-Quadrant Multiplication
• Low Multiplying Feedthrough: 1LSB max @ 10kHz
• Requires no Schottky Diode Output Protection
• Low Power Dissipation: 40mW max
• +5V Supply
• Small Size: 16-Pin DIP or 20-Terminal Surface Mount Package
• Low Cost