AD7945TQ

\+ 3.3V / + 5V电压倍增的12位DAC +3.3 V/+5 V Multiplying 12-Bit DACs

GENERAL DESCRIPTION

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.

FEATURES

12-Bit Multiplying DACs

Guaranteed Specifications with +3.3 V/+5 V Supply

0.5 LSBs INL and DNL

Low Power: 5 mW typ

Fast Interface

  40 ns Strobe Pulsewidth AD7943

  40 ns Write Pulsewidth AD7945, AD7948

Low Glitch: 60 nV-s with Amplifier Connected

APPLICATIONS

Battery-Powered Instrumentation

Laptop Computers

Upgrades for All 754x Series DACs 5 V Designs