DAC0800 DAC0801 DAC0802 DAC0800C DAC0801C DAC0802C DAC-08 DAC08A DAC-08C - Datasheet Archive

 

Converters General Description The DAC0800 series are monolithic 8-bit high-speed current-output digital-to-analog converters

 

DAC0800 DAC0800 DAC0801 DAC0801 DAC0802 DAC0802 8-Bit Digital-to-Analog Converters General Description The DAC0800 DAC0800 series are monolithic 8-bit high-speed current-output digital-to-analog converters (DAC) featuring typical settling times of 100 ns When used as a multiplying DAC monotonic performance over a 40 to 1 reference current range is possible The DAC0800 DAC0800 series also features high compliance complementary current outputs to allow differential output voltages of 20 Vp-p with simple resistor loads as shown in Figure 1 The reference-to-full-scale current matching of better than g 1 LSB eliminates the need for full-scale trims in most applications while the nonlinearities of better than g 0 1% over temperature minimizes system error accumulations The noise immune inputs of the DAC0800 DAC0800 series will accept TTL levels with the logic threshold pin VLC grounded Changing the VLC potential will allow direct interface to other logic families The performance and characteristics of the device are essentially unchanged over the full g 4 5V to g 18V power supply range power dissipation is only 33 mW with g 5V supplies and is independent of the logic input states The DAC0800 DAC0800 DAC0802 DAC0802 DAC0800C DAC0800C DAC0801C DAC0801C and DAC0802C DAC0802C are a direct replacement for the DAC-08 DAC-08 DAC08A DAC08A DAC-08C DAC-08C DAC-08E DAC-08E and DAC-08H DAC-08H respectively Features Y Y Y Y Y Y Y Y Y Y Y Fast settling output current 100 ns g 1 LSB Full scale error g 0 1% Nonlinearity over temperature g 10 ppm C Full scale current drift b 10V to a 18V High output compliance Complementary current outputs Interface directly with TTL CMOS PMOS and others 2 quadrant wide range multiplying capability g 4 5V to g 18V Wide power supply range Low power consumption 33 mW at g 5V Low cost Typical Applications TL H 5686 ­ 1 FIGURE 1 g 20 VP-P Output Digital-to-Analog Converter (Note 4) Ordering Information Non-Linearity g 0 1% FS g 0 19% FS g 0 19% FS g 0 39% FS Temperature Range Order Numbers J Package (J16A) N Package (N16A) 0 C s TA s a 70 C DAC0802LCJ DAC0802LCJ DAC-08HQ DAC-08HQ DAC0802LCN DAC0802LCN DAC-08HP DAC-08HP b 55 C s TA s a 125 C DAC0800LJ DAC0800LJ DAC-08Q DAC-08Q 0 C s TA s a 70 C DAC0800LCJ DAC0800LCJ DAC-08EQ DAC-08EQ DAC0800LCN DAC0800LCN DAC-08EP DAC-08EP 0 C s TA s a 70 C DAC0801LCN DAC0801LCN DAC-08CP DAC-08CP SO Package (M16A) DAC0802LCM DAC0802LCM DAC0800LCM DAC0800LCM DAC0801LCM DAC0801LCM Devices may be ordered by using either order number C1995 C1995 National Semiconductor Corporation TL H 5686 RRD-B30M115 RRD-B30M115 Printed in U S A DAC0800 DAC0800 DAC0801 DAC0801 DAC0802 DAC0802 8-Bit Digital-to-Analog Converters January 1995 Absolute Maximum Ratings (Note 1) Lead Temp (Soldering 10 seconds) Dual-In-Line Package (plastic) Dual-In-Line Package (ceramic) Surface Mount Package Vapor Phase (60 seconds) Infrared (15 seconds) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications g 18V or 36V Supply Voltage (V a b Vb) Power Dissipation (Note 2) 500 mW Reference Input Differential Voltage (V14 to V15) Vb to V a Reference Input Common-Mode Range (V14 V15) Vb to V a Reference Input Current 5 mA Logic Inputs Vb to Vb plus 36V Analog Current Outputs (VSb e b15V) 4 25 mA ESD Susceptibility (Note 3) TBD V b 65 C to a 150 C Storage Temperature 260 C 300 C 215 C 220 C Operating Conditions (Note 1) Min Max Units b 55 Temperature (TA) DAC0800L DAC0800L DAC0800LC DAC0800LC DAC0801LC DAC0801LC DAC0802LC DAC0802LC a 125 a 70 a 70 a 70 C C C C 0 0 0 Electrical Characteristics The following specifications apply for VS e g 15V IREF e 2 mA and TMIN s TA s TMAX unless otherwise specified Output characteristics refer to both IOUT and IOUT Symbol Parameter Min 8 8 Settling Time To g LSB All Bits Switched ``ON'' or ``OFF'' TA e 25 C DAC0800L DAC0800L DAC0800LC DAC0800LC Typ 8 8 Max Min 8 8 8 8 g0 1 100 Resolution Monotonicity Nonlinearity ts DAC0800L DAC0800L DAC0800LC DAC0800LC DAC0802LC DAC0802LC Conditions Typ 8 8 DAC0801LC DAC0801LC Max Min 8 8 8 8 g 0 19 135 Units TCIFS Full Scale Tempco VOC Output Voltage Compliance Full Scale Current Change k LSB ROUT l 20 MX Typ IFS4 Full Scale Current VREF e 10 000V R14 e 5 000 kX 1 984 1 992 2 000 1 94 R15 e 5 000 kX TA e 25 C IFSS Full Scale Symmetry IFS4 b IFS2 IZS Zero Scale Current IFSR Output Current Range VIL VIH Logic Input Levels Logic ``0'' Logic ``1'' VLC e 0V IIL IIH Logic Input Current Logic ``0'' Logic ``1'' VLC e 0V b 10V s VIN s a 0 8V 2V s VIN s a 18V VIS Logic Input Swing V b e b 15V b 10 VTHR Logic Threshold Range VS e g 15V b 10 I15 Reference Bias Current dl dt Reference Input Slew Rate (Figure 12) 60 60 g 10 Propagation Delay Each Bit All Bits Switched g 50 Bits Bits %FS 150 ns 135 150 35 35 tPLH tPHL Max 8 8 g 0 39 100 100 100 Typ 8 8 ns ns TA e 25 C 35 35 60 60 g 10 g 50 b 10 18 b 10 18 1 99 35 35 g 10 b 10 2 04 1 94 60 60 ns ns g 80 ppm 18 1 99 2 04 mA mA g0 5 0 0 g4 0 g1 g8 0 g2 g 16 01 V b e b 5V V b e b 8V to b 18V 10 02 20 02 40 mA 20 20 21 42 20 20 21 42 20 20 21 42 mA mA 08 V V b 10 mA mA 0 0 08 20 20 b2 0 0 002 18 b 10 13 5 b 10 b1 0 b3 0 80 0 0 08 20 b 2 0 b 10 0 002 10 40 C V b2 0 0 002 10 18 b 10 13 5 b 10 b1 0 40 b 10 b3 0 80 18 V 13 5 b1 0 40 10 V b3 0 80 mA mA ms PSSIFS a Power Supply Sensitivity 4 5V s V a s 18V 0 0001 0 01 0 0001 0 01 0 0001 0 01 % % PSSIFS b b 4 5V s V b s 18V IREF e 1mA 0 0001 0 01 0 0001 0 01 0 0001 0 01 % % Power Supply Current VS e g 5V IREF e 1 mA 23 Ia Ib 38 b4 3 b5 8 23 38 23 38 b4 3 b5 8 b4 3 b5 8 mA mA VS e 5V b 15V IREF e 2 mA 24 Ia Ib 38 b6 4 b7 8 24 38 24 38 b6 4 b7 8 b6 4 b7 8 mA mA VS e g 15V IREF e 2 mA 25 Ia Ib 38 b6 5 b7 8 2 25 38 25 38 b6 5 b7 8 b6 5 b7 8 mA mA Electrical Characteristics (Continued) The following specifications apply for VS e g 15V IREF e 2 mA and TMIN s TA s TMAX unless otherwise specified Output characteristics refer to both IOUT and IOUT Symbol Parameter DAC0802LC DAC0802LC Conditions Min PD Power Dissipation g 5V IREF e 1 mA 5V b 15V IREF e 2 mA g 15V IREF e 2 mA Typ Max 33 108 135 48 136 174 DAC0800L DAC0800L DAC0800LC DAC0800LC Min Typ Max 33 108 135 DAC0801LC DAC0801LC Min 48 136 174 Units Typ Max 33 108 135 48 136 174 mW mW mW Note 1 Absolute Maximum Ratings indicate limits beyond which damage to the device may occur DC and AC electrical specifications do not apply when operating the device beyond its specified operating conditions Note 2 The maximum junction temperature of the DAC0800 DAC0800 DAC0801 DAC0801 and DAC0802 DAC0802 is 125 C For operating at elevated temperatures devices in the Dual-In-Line J package must be derated based on a thermal resistance of 100 C W junction-to-ambient 175 C W for the molded Dual-In-Line N package and 100 C W for the Small Outline M package Note 3 Human body model 100 pF discharged through a 1 5 kX resistor Note 4 Pin-out numbers for the DAC080X DAC080X represent the Dual-In-Line package The Small Outline package pin-out differs from the Dual-In-Line package Connection Diagrams Small Outline Package Dual-In-Line Package TL H 5686 ­ 14 Top View TL H 5686 ­ 13 Top View See Ordering Information Block Diagram (Note 4) TL H 5686 ­ 2 3 Typical Performance Characteristics Full Scale Current vs Reference Current LSB Propagation Delay Vs IFS Reference Input Frequency Response Curve 1 CC e 15 pF VIN e 2 Vp-p centered at 1V Curve 2 CC e 15 pF VIN e 50 mVp-p centered at 200 mV Curve 3 CC e 0 pF VIN e 100 mVp-p at 0V and applied through 50 X connected to pin 14 2V applied to R14 Reference Amp Common-Mode Range Logic Input Current vs Input Voltage VTH b VLC vs Temperature Output Voltage Compliance vs Temperature Bit Transfer Characteristics Note Positive common-mode range is always (V a ) b 1 5V Output Current vs Output Voltage (Output Voltage Compliance) TL H 5686 ­ 3 Note B1­B8 have identical transfer characteristics Bits are fully switched with less than LSB error at less than g 100 mV from actual threshold These switching points are guaranteed to lie between 0 8 and 2V over the operating temperature range (VLC e 0V) 4 Typical Performance Characteristics Power Supply Current vs a V (Continued) Power Supply Current vs bV Power Supply Current vs Temperature TL H 5686 ­ 4 Equivalent Circuit TL H 5686 ­ 15 Typical Applications FIGURE 2 (Continued) IFS a VREF 255 256 c RREF IO a IO e IFS for all logic states For fixed reference TTL operation typical values are VREF e 10 000V RREF e 5 000k R15 RREF CC e 0 01 mF VLC e 0V (Ground) TL H 5686 ­ 5 FIGURE 3 Basic Positive Reference Operation (Note 4) TL H 5686 ­ 16 TL H 5686 ­ 21 IFS FIGURE 4 Recommended Full Scale Adjustment Circuit (Note 4) b VREF RREF c 255 256 Note RREF sets IFS R15 is for bias current cancellation FIGURE 5 Basic Negative Reference Operation (Note 4) 5 Typical Applications (Continued) TL H 5686 ­ 17 B1 B2 B3 B4 B5 B6 B7 B8 IO mA IO mA EO EO Full Scale Full ScalebLSB Half Scale a LSB 1 1 1 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 0 1 1 992 1 984 1 008 0 000 0 008 0 984 b 9 960 0 000 b 9 920 b 0 040 b 5 040 b 4 920 Half Scale Half ScalebLSB Zero Scale a LSB Zero Scale 1 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 1 0 1 000 0 992 0 008 0 000 0 992 1 000 1 984 1 992 b 5 000 b 4 960 b 4 960 b 5 000 b 0 040 b 9 920 0 000 b9 960 FIGURE 6 Basic Unipolar Negative Operation (Note 4) TL H 5686 ­ 6 B1 B2 B3 B4 B5 B6 B7 B8 Pos Full Scale Pos Full ScalebLSB Zero Scale a LSB Zero Scale Zero ScalebLSB Neg Full Scale a LSB Neg Full Scale 1 1 1 1 0 0 0 1 1 0 0 1 0 0 1 1 0 0 1 0 0 1 1 0 0 1 0 0 1 1 0 0 1 0 0 1 1 0 0 1 0 0 1 1 0 0 1 0 0 EO EO 1 b9 920 0 b9 840 1 b0 080 0 0 000 1 a 0 080 1 a 9 920 0 a 10 000 a 10 000 a 9 920 a 0 160 a 0 080 0 000 b 9 840 b 9 920 FIGURE 7 Basic Bipolar Output Operation (Note 4) TL H 5686 ­ 18 If RL e RL within g 0 05% output is symmetrical about ground B1 B2 B3 B4 B5 B6 B7 B8 Pos Full Scale Pos Full ScalebLSB ( a )Zero Scale (b)Zero Scale Neg Full Scale a LSB Neg Full Scale 1 1 1 0 0 0 1 1 0 1 0 0 1 1 0 1 0 0 1 1 0 1 0 0 1 1 0 1 0 0 1 1 0 1 0 0 1 1 0 1 0 0 1 0 0 1 1 0 EO a 9 960 a 9 880 a 0 040 b 0 040 b 9 880 b 9 960 FIGURE 8 Symmetrical Offset Binary Operation (Note 4) 6 Typical Applications (Continued) TL H 5686 ­ 19 For complementary output (operation as negative logic DAC) connect inverting input of op amp to IO (pin 2) connect IO (pin 4) to ground FIGURE 9 Positive Low Impedance Output Operation (Note 4) TL H 5686 ­ 20 For complementary output (operation as a negative logic DAC) connect non-inverting input of op am to IO (pin 2) connect IO (pin 4) to ground FIGURE 10 Negative Low Impedance Output Operation (Note 4) VTH e VLC a 1 4V 15V CMOS HTL HNIL VTH e 7 6V TL H 5686 ­ 10 Typical values RIN e 5k a VIN e 10V TL H 5686 ­ 9 Note Do not exceed negative logic input range of DAC FIGURE 11 Interfacing with Various Logic Families FIGURE 12 Pulsed Reference Operation (Note 4) 7 Typical Applications (Continued) (a) IREF t peak negative swing of IIN (b) a VREF must be above peak positive swing of VIN TL H 5686 ­ 12 TL H 5686 ­ 11 FIGURE 13 Accommodating Bipolar References (Note 4) TL H 5686 ­ 7 FIGURE 14 Settling Time Measurement (Note 4) 8 Typical Applications (Continued) Note For 1 ms conversion time with 8-bit resolution and 7-bit accuracy an LM361 LM361 comparator replaces the LM319 LM319 and the reference current is doubled by reducing R1 R2 and R3 to 2 5 kX and R4 to 2 MX TL H 5686 ­ 8 FIGURE 15 A Complete 2 ms Conversion Time 8-Bit A D Converter (Note 4) Physical Dimensions inches (millimeters) Molded Dual-In-Line Package Order Numbers DAC0800 DAC0800 or DAC0802 DAC0802 NS Package Number J16A 9 DAC0800 DAC0800 DAC0801 DAC0801 DAC0802 DAC0802 8-Bit Digital-to-Analog Converters Physical Dimensions inches (millimeters) (Continued) Molded Small Outline Package (SO) Order Numbers DAC0800LCM DAC0800LCM DAC0801LCM DAC0801LCM or DAC0802LCM DAC0802LCM NS Package Number M16A LIFE SUPPORT POLICY Molded Dual-In-Line Package Order Numbers DAC0800 DAC0800 DAC0801 DAC0801 DAC0802 DAC0802 NS Package Number N16A NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or systems which (a) are intended for surgical implant into the body or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user National Semiconductor Corporation 1111 West Bardin Road Arlington TX 76017 Tel 1(800) 272-9959 Fax 1(800) 737-7018 2 A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness National Semiconductor Europe Fax (a49) 0-180-530 85 86 Email cnjwge tevm2 nsc com Deutsch Tel (a49) 0-180-530 85 85 English Tel (a49) 0-180-532 78 32 Fran ais Tel (a49) 0-180-532 93 58 Italiano Tel (a49) 0-180-534 16 80 National Semiconductor Hong Kong Ltd 13th Floor Straight Block Ocean Centre 5 Canton Rd Tsimshatsui Kowloon Hong Kong Tel (852) 2737-1600 Fax (852) 2736-9960 National Semiconductor Japan Ltd Tel 81-043-299-2309 Fax 81-043-299-2408 National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications