DAC7744| Datasheet

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DAC 774

DAC7744
4

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16-Bit, Quad Voltage Output DIGITAL-TO-ANALOG CONVERTER
FEATURES
q LOW POWER: 200mW q UNIPOLAR OR BIPOLAR OPERATION q SINGLE-SUPPLY OUTPUT RANGE: +10V q DUAL SUPPLY OUTPUT RANGE: 10V q SETTLING TIME: 10us to 0.003% q 16-BIT MONOTONICITY: 40 C to +85 C q PROGRAMMABLE RESET TO MID-SCALE OR ZERO-SCALE q DATA READBACK q DOUBLE-BUFFERED DATA INPUTS

DESCRIPTION
The DAC7744 is a 16-bit, quad voltage output digitalto-analog converter with guaranteed 16-bit monotonic performance over the specified temperature range. It accepts 16-bit parallel input data, has double-buffered DAC input logic (allowing simultaneous update of all DACs), and provides a readback mode of the internal input registers. Programmable asynchronous reset clears all registers to a mid-scale code of 8000H or to a zero-scale of 0000H. The DAC7744 operates from either a single +15V supply or from a +15V, 15V, and +5V supply. Low power and small size per DAC make the DAC7744 ideal for automatic test equipment, DAC-per-pin programmers, data acquisition systems, and closed-loop servo-control. The DAC7744 is available in a 48lead SSOP package, and offers guaranteed specifications over the 40 C to +85 C temperature range.

APPLICATIONS
q PROCESS CONTROL q ATE PIN ELECTRONICS q CLOSED-LOOP SERVO-CONTROL q MOTOR CONTROL q DATA ACQUISITION SYSTEMS q DAC-PER-PIN PROGRAMMERS
VDD VSS VCC

VREFL AB Sense

VREFL AB VREFH AB

VREFH AB Sense

DAC7744

16 DATA I/O

I/O Buffer

Input Register A

DAC Register A

DAC A

VOUTA

VOUTA Sense Input Register B DAC Register B DAC B VOUTB VOUTB Sense A1 A0 CS R/W Control Logic Input Register C DAC Register C DAC C

VOUTC

VOUTC Sense Input Register D DAC Register D DAC D

VOUTD

VOUTD Sense

AGND

DGND

RST

RSTSEL LOADDACs

VREFL CD Sense

VREFL CD VREFH CD

VREFH CD Sense

International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111 Twx: 910-952-1111 Internet: http://www.burr-brown.com/ Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132

1999 Burr-Brown Corporation

PDS-1534A

Printed in U.S.A. November, 1999

DAC7744

SBAS120