MP7523

FEATURES w w Full Four-Quadrant Multiplying Low Feedthrough: 1/2 LSB @ 200 kHz Fast Settling: 100 ns (typ.) Low Power Dissipation Low Cost 5 V/15 V Operation Buffered Version: MP7524/XRD7524 w .D a t a Sh t e e . U 4 ...the analog plus company m o c MP7523/XRD7523 TM 15 V CMOS Multiplying 8-Bit Digital-to-Analog Converter January 1996-2 APPLICATIONS Battery Operated Equipment Low Power, Ratiometric A/D Converters Digitally Controlled Gain Circuits Digitally Controlled Attenuators CRT Character Generation Low Noise Audio Gain Control GENERAL DESCRIPTION The MP7523/XRD7523 is a low cost multiplying Digital-toAnalog Converter. The device uses an advanced thin-film-onCMOS technology to provide 8-bit resolution with accuracy to 10-bits and very low power dissipation. SIMPLIFIED BLOCK DIAGRAM VREF 4R 4R w Rev. 3.00 E1996 w w .D 4R 2R t a 4R S a VDD 4R e h 2R The MP7523/XRD7523’s excellent multiplying characteristics and low cost allow it to be used in a wide ranging field of applications such as: low noise audio gain control, CRT character generation, motor speed control, digitally controlled attenuators, etc. t e 4R U 4 .c m o 2R RFB 4R R IOUT1 IOUT2 2 to 3 Decoder Switch Drivers & Switches R = 10k BIT 1 MSB BIT 8 LSB 3 Segment D/A Converter with Termination to DGND Logical “1” at Digital Input Steers Current to IOUT1 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z (510) 668-7010 w w w .D ...