HomedatasheetDAC80-CBI-V

DAC80-CBI-V Datasheet

ti DAC80, Monolithic 12-Bit Digital-to-analog Converters
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Description

Features, Applications

FEATURES

q INDUSTRY STANDARD PINOUT q FULL �10V SWING WITH VCC �12VDC q DIGITAL INPUTS ARE TTL- AND CMOS-COMPATIBLE q GUARANTEED SPECIFICATIONS WITH �12V AND �15V SUPPLIES q �1/2LSB MAXIMUM NONLINEARITY: +70�C q SETTLING TIME: 4�s max �0.01% of Full Scale q GUARANTEED MONOTONICITY: +70�C q TWO PACKAGE OPTIONS: Hermetic sidebrazed ceramic and low-cost molded plastic resistors, as well as low integral and differential linearity errors. Innovative circuit design enables the DAC80 to operate at supply voltages as low as �11.4V with no loss in performance or accuracy over any range of output voltage. The lower power dissipation of this by 121-mil chip results in higher reliability and greater long term stability. Burr-Brown has further enhanced the reliability of the monolithic DAC80 by offering a hermetic, side-brazed, ceramic package. In addition, ease of use has been enhanced by eliminating the need for a +5V logic power supply. For applications requiring both reliability and low cost, the in a molded plastic package offers the same electrical performance over temperature as the ceramic model. The DAC80P is available with voltage output only. For designs that require a wider temperature range, see Burr-Brown models DAC85H and DAC87H.

DESCRIPTION

This monolithic digital-to-analog converter is pin-forpin equivalent to the industry standard DAC80 first introduced by Burr-Brown. Its single-chip design includes the output amplifier and provides a highly stable reference capable of supplying to an external load without degradation of D/A performance. This converter uses proven circuit techniques to provide accurate and reliable performance over temperature and power supply variations. The use of a buried zener diode as the basis for the internal reference contributes to the high stability and low noise of the device. Advanced methods of laser trimming result in precision output current and output amplifier feedback

12-Bit Resistor Ladder Network and Current Switches Reference Control Circuit
Analog Output Offset Adjustment + Supply � Supply

International Airport Industrial Park Mailing Address: PO Box 11400 Tel: (520) 746-1111 Twx: 910-952-1111 Cable: BBRCORP

Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd. Tucson, AZ 85706 Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: 548-6132 PDS-643F Printed in U.S.A. July, 1993

SPECIFICATIONS

Typical at +25�C and �VCC or 15V unless otherwise noted. DAC80 PARAMETER DIGITAL INPUT Resolution Logic Levels to +70�C)(1): VIH (Logic "1") VIL (Logic "0") IIH (VIN = +2.4V) IIL (VIN = +0.4V) ACCURACY (at +25�C) Linearity Error Differential Linearity Error Gain Error(2) Offset Error(2) DRIFT to +70�C)(4) Total Bipolar Drift (includes gain, offset, and linearity drifts) Total Error Over to +70�C(5) Unipolar Bipolar Gain: Including Internal Reference Excluding Internal Reference Unipolar Offset Bipolar Offset Differential Linearity to +70�C Linearity Error +70� C Monotonicity Guaranteed CONVERSION SPEED, VOUT Models Settling Time �0.01% of FSR For FSR Change (2k 500pF Load) with 10k Feedback with 5k Feedback For 1LSB Change Slew Rate CONVERSION SPEED, IOUT Models Settling Time �0.01% of FSR For FSR change: to 100 Load 1k Load ANALOG OUTPUT, VOUT Models Ranges Output Current(6) Output Impedance (DC) Short Circuit to Common, Duration(7) ANALOG OUTPUT, IOUT Models Ranges: Bipolar Unipolar Output Impendance: Bipolar Unipolar Compliance REFERENCE VOLTAGE OUTPUT External Current (constant load) Drift vs Temperature Output Impedance POWER SUPPLY SENSITIVITY VCC or �15VDC POWER SUPPLY REQUIREMENTS �VCC Supply Drain (no load): +VCC �VCC Power Dissipation (VCC = �15VDC) TEMPERATURE RANGE Specification Operating Storage: Plastic DIP Ceramic DIP MIN TYP MAX UNITS Bits VDC �A LSB of FSR(3) ppm of FSR/�C % of FSR % of FSR ppm/�C ppm of FSR/�C ppm of FSR/�C LSB �C

NOTES: (1) Refer to "Logic Input Compatibility" section. (2) Adjustable to zero with external trim potentiometer. (3) FSR means full scale range and is 20V for �10V range, 10V for �5V range for VOUT models; 2mA for IOUT models. (4) To maintain drift spec, internal feedback resistors must be used. (5) Includes the effects of gain, offset and linearity drift. Gain and offset errors externally adjusted to zero +25�C. (6) For �VCC less than �12VDC, limit output current load �2.5mA to maintain �10V full scale output voltage swing. For output range �5V or less, the output current is �5mA over entire �VCC range. (7) Short circuit current is 40mA, max.

Voltage Models (MSB) Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 8 Bit 12-Bit Resistor Ladder Network and Current Switches 5k 6.3k Reference Control Circuit 24 6.3V Ref Out 23 Gain Adjust 22 +VCC 21 Common 20 Summing Junction 19 20V Range 18 10V Range 17 Bipolar Offset 16 Ref Input 15 VOUT 14 �VCC 13 NC(1) (MSB) Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 8 Bit 12-Bit Resistor Ladder Network and Current Switches 5k 6.3k Reference Control Circuit Current Models 24 6.3V Ref Out 23 Gain Adjust 22 +VCC 21 Common 20 Scaling Network 19 Scaling Network 18 Scaling Network 17 Bipolar Offset 16 Ref Input 15 IOUT 14 �VCC 13 NC(1)

NOTE: (1) Logic supply applied to this pin has no effect.

+VCC to Common...................................................................... to +18V �VCC to Common......................................................................... to �18 Digital Data Inputs to Common.............................................. to +18V Reference Output to Common............................................................ �VCC Reference Input to Common............................................................... �VCC Bipolar Offset to Common................................................................... �VCC 10V Range R to Common................................................................... �VCC 20V Range R to Common................................................................... �VCC External Voltage to DAC Output.............................................. to +5V Lead Temperature (soldering, 10s)................................................ +300�C Max Junction Temperature.............................................................. 165�C Thermal Resistance, JA: Plastic DIP........................................... 100�C/W Ceramic DIP......................................... 65�C/W 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.

MODEL DAC80P DAC80 PACKAGE 24-Pin Plastic DIP 24-Pin Ceramic DIP PACKAGE DRAWING 167 125

NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix D of Burr-Brown IC Data Book.

BURN-IN SCREENING Burn-in screening is an option available for the models indicated in the Ordering Information table. Burn-in duration is 160 hours at the maximum specified grade operating temperature (or equivalent combination of time and temperature). All units are tested after burn-in to ensure that grade specifications are met. To order burn-in, add "�BI" to the base model number.

MODEL DAC80Z-CBI-V DAC80P-CBI-V PACKAGE Ceramic DIP Ceramic DIP Ceramic DIP Ceramic DIP Plastic DIP OUTPUT Current Voltage

BURN-IN SCREENING OPTION MODEL DAC80-CBI-V-BI DAC80P-CBI-V-BI PACKAGE Ceramic DIP Plastic DIP BURN-IN TEMP. (160h)(1) +125�C


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