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DAC7642 Dataheets PDF



Part Number DAC7642
Manufacturers Burr-Brown
Logo Burr-Brown
Description DIGITAL-TO-ANALOG CONVERTER
Datasheet DAC7642 DatasheetDAC7642 Datasheet (PDF)

DAC7642 DAC7642 DAC7643 DAC7643 SBAS233 – DECEMBER 2001 16-Bit, Dual Voltage Output DIGITAL-TO-ANALOG CONVERTER FEATURES q LOW POWER: 4mW q UNIPOLAR OR BIPOLAR OPERATION q SETTLING TIME: 10µs to 0.003% FSR q 15-BIT LINEARITY AND MONOTONICITY: –40°C to +85°C q RESET TO MID-SCALE (DAC7642) OR ZERO-SCALE (DAC7643) q DATA READBACK q DOUBLE-BUFFERED DATA INPUTS APPLICATIONS q PROCESS CONTROL q CLOSED-LOOP SERVO-CONTROL q MOTOR CONTROL q DATA ACQUISITION SYSTEMS q DAC-PER-PIN PROGRAMMERS DESCRIP.

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DAC7642 DAC7642 DAC7643 DAC7643 SBAS233 – DECEMBER 2001 16-Bit, Dual Voltage Output DIGITAL-TO-ANALOG CONVERTER FEATURES q LOW POWER: 4mW q UNIPOLAR OR BIPOLAR OPERATION q SETTLING TIME: 10µs to 0.003% FSR q 15-BIT LINEARITY AND MONOTONICITY: –40°C to +85°C q RESET TO MID-SCALE (DAC7642) OR ZERO-SCALE (DAC7643) q DATA READBACK q DOUBLE-BUFFERED DATA INPUTS APPLICATIONS q PROCESS CONTROL q CLOSED-LOOP SERVO-CONTROL q MOTOR CONTROL q DATA ACQUISITION SYSTEMS q DAC-PER-PIN PROGRAMMERS DESCRIPTION The DAC7642 and DAC7643 are dual channel, 16-bit, voltage output Digital-to-Analog Converters (DACs) which provide 15-bit monotonic performance over the specified temperature range. They accept 16-bit parallel input data, have double-buffered DAC input logic (allowing simultaneous update of all DACs), and provide a readback mode of the internal input registers. Programmable asynchronous reset clears all registers to a mid-scale code of 8000H (DAC7642) or to a zero-scale code of 0000H (DAC7643). These DACs can operate from a single +5V supply or from +5V and –5V supplies, providing an output range of 0 to +2.5V or –2.5V to +2.5V, respectively. Low power and small size per DAC make the DAC7642 and DAC7643 ideal for automatic test equipment, DAC-per-pin programmers, data acquisition systems, and closed-loop servo-control. The DAC7642 and DAC7643 are available in a LQFP-32 package and specified over a –40°C to +85°C temperature range. DAC7642 DAC7643 DATA I/O 16 I/O Buffer VCC VSS Input Register A DACSEL CS R/W Control Logic Input Register B DAC Register A DAC Register B VREFL Sense VREFL VREFH VREFH Sense DAC A DAC B VOUTA VOUTA Sense VOUTB VOUTB Sense GND RST LOADDACS Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. www.ti.com Copyright © 2001, Texas Instruments Incorporated ABSOLUTE MAXIMUM RATINGS(1) VCC to VSS ............................................................................. –0.3V to 11V VCC to GND .......................................................................... –0.3V to 5.5V VREFL to VSS ............................................................. –0.3V to (VCC – VSS) VCC to VREFH ............................................................ –0.3V to (VCC – VSS) VREFH to VREFL ......................................................... –0.3V to (VCC – VSS) Digital Input Voltage to GND ................................... –0.3V to VCC + 0.3V Digital Output Voltage to GND ................................. –0.3V to VCC + 0.3V Maximum Junction Temperature ................................................... +150°C Operating Temperature Range ........................................ –40°C to +85°C Storage Temperature Range ......................................... –65°C to +125°C Lead Temperature (soldering, 10s) ............................................... +300°C NOTE: (1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. Exposure to absolute maximum conditions for extended periods may affect device reliability. ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PACKAGE/ORDERING INFORMATION PRODUCT DAC7642VF " DAC7642VFB " DAC7643VF " DAC7643VFB " PACKAGE MONOTONICITY PACKAGE-LEAD DESIGNATOR(1) 14 Bits LQFP-32 VF " " " 15 Bits LQFP-32 VF " " " 14 Bits LQFP-32 VF " " " 15 Bits LQFP-32 VF " " " SPECIFIED TEMPERATURE RANGE –40°C to +85°C " –40°C to +85°C " –40°C to +85°C " –40°C to +85°C " PACKAGE MARKING DAC7642 " DAC7642B " DAC7643 " DAC7643B " ORDERING NUMBER DAC7642VFT DAC7642VFR DAC7642VFB T DAC7642VFB R DAC7643VFT DAC7643VFR DAC7643VFB T DAC7643VFB R TRANSPORT MEDIA, QUANTITY Tape and Reel, 250 Tape and Reel, 1000 Tape and Reel, 250 Tape and Reel, 1000 Tape and Reel, 250 Tape and Reel, 1000 Tape and Reel, 250 Tape and Reel, 1000 NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com. 2 DAC7642, DAC7643 www.ti.com SBAS233 ELECTRICAL CHARACTERISTICS (Dual Supply) At TA = TMIN to TMAX, VCC = +5V, VSS = –5V, .


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