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CMOS 8-Bit Buffered Multiplying DAC AD7524

FEATURES Microprocessor Compatible (6800, 8085, Z80, Etc.) TTL/CMOS Compatible Inputs On-Chip Data Latches Endpoint Linearity Low Power Consumption Monotonicity Guaranteed (Full Temperature Range) Latch Free (No Protection Schottky Required)

FUNCTIONAL BLOCK DIAGRAM

APPLICATIONS Microprocessor Controlled Gain Circuits Microprocessor Controlled Attenuator Circuits Microprocessor Controlled Function Generation Precision AGC Circuits Bus Structured Instruments

GENERAL DESCRIPTION

The AD7524 is a low cost, 8-bit monolithic CMOS DAC designed for direct interface to most microprocessors. Basically an 8-bit DAC with input latches, the AD7524’s load cycle is similar to the “write” cycle of a random access memory. Using an advanced thin-film on CMOS fabrication process, the AD7524 provides accuracy to 1/8 LSB with a typical power dissipation of less than 10 milliwatts. A newly improved design eliminates the protection Schottky previously required and guarantees TTL compatibility when using a +5 V supply. Loading speed has been increased for compatibility with most microprocessors. Featuring operation from +5 V to +15 V, the AD7524 interfaces directly to most microprocessor buses or output ports. Excellent multiplying characteristics (2- or 4-quadrant) make the AD7524 an ideal choice for many microprocessor controlled gain setting and signal control applications.

ORDERING GUIDE

Model1

Temperature Range

Nonlinearity (VDD = +15 V)

Package Option2

AD7524JN AD7524KN AD7524LN AD7524JP AD7524KP AD7524LP AD7524JR AD7524AQ AD7524BQ AD7524CQ AD7524SQ AD7524TQ AD7524UQ AD7524SE AD7524TE AD7524UE

–40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C –55°C to +125°C –55°C to +125°C –55°C to +125°C –55°C to +125°C –55°C to +125°C –55°C to +125°C

± 1/2 LSB ± 1/4 LSB ± 1/8 LSB ± 1/2 LSB ± 1/4 LSB ± 1/8 LSB ± 1/2 LSB ± 1/2 LSB ± 1/4 LSB ± 1/8 LSB ± 1/2 LSB ± 1/4 LSB ± 1/8 LSB ± 1/2 LSB ± 1/4 LSB ± 1/8 LSB

N-16 N-16 P-20A P-20A R-16A Q-16 Q-16 Q-16 Q-16 E-20A E-20A

NOTES 1 To order MIL-STD-883, Class B processed parts, add/883B to part number. Contact your local sales office for military data sheet. For U.S. Standard Military Drawing (SMD) see DESC drawing #5962-87700. 2 E = Leadless Ceramic Chip Carrier: N = Plastic DIP; P = Plastic Leaded Chip Carrier; Q = Cerdip; R = SOIC.

REV. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703


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