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DAC-08 SERIES 8-bit high-speed multiplying converter
Product data Supersedes data 1994 File under Integrated Circuits, Handbook IC11 2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
DESCRIPTION
DAC-08 series 8-bit monolithic multiplying Digital-to-Analog Converters provide very high-speed performance coupled with cost outstanding applications flexibility. Advanced circuit design achieves settling times with very glitch power consumption. Monotonic multiplying performance attained over wide 20-to-1 reference current range. Matching within between reference full-scale currents eliminates need full-scale trimming most applications. Direct interface popular logic families with full noise immunity provided high swing, adjustable threshold logic inputs. Dual complementary outputs provided, increasing versatility enabling differential operation effectively double peak-to-peak output swing. True high voltage compliance outputs allow direct output voltage conversion eliminate output amps many applications. DAC-08 series models guarantee full 8-bit monotonicity linearities tight 0.1% over entire operating temperature range. Device performance essentially unchanged over ±4.5 power supply range, with power consumption attainable supplies. compact size power consumption make DAC-08 attractive portable military aerospace applications.
CONFIGURATIONS
Package
(MSB) VIEW COMP VREF- REF+ (LSB)
Package
VREF+ VREF- COMPEN (LSB) VIEW NOTE: non-standard pinouts. (MSB)
FEATURES
Fast settling output current-70 Full-scale current prematched Direct interface TTL, CMOS, ECL, HTL, PMOS Relative accuracy 0.1% maximum over temperature range High output compliance True complemented outputs Wide range multiplying capability current drift ±10ppm/°C Wide power supply range-±4.5 power consumption-37
APPLICATIONS
SL00001
Figure Configuration
8-bit, A-to-D converters Servo-motor drivers Waveform generators Audio encoders attenuators Analog meter drivers Programmable power supplies display drivers High-speed modems Other applications where cost, high speed complete
input/output versatility required
Programmable gain attenuation Analog-Digital multiplication
2001 853-0045 26832
Product data
8-bit high-speed multiplying converter
DAC-08 Series
ORDERING INFORMATION
DESCRIPTION 16-Pin Plastic Dual In-Line Package (DIP) 16-Pin Plastic Dual In-Line Package (DIP) 16-Pin Plastic Small Outline (SO) Package 16-Pin Plastic Dual In-Line Package (DIP) TEMPERATURE RANGE +70°C +70°C +70°C +70°C ORDER CODE DAC-08CN DAC-08EN DAC-08ED DAC-08HN SOT38-4 SOT38-4 SOT109-1 SOT38-4
BLOCK DIAGRAM
BIAS NETWORK CURRENT SWITCHES
IOUT IOUT
VREF(+) REFERENCE AMPLIFIER
VREF(-)
COMP.
SL00002
Figure Block Diagram
ABSOLUTE MAXIMUM RATINGS
SYMBOL V5-V12 V14, Power supply voltage Digital input voltage Logic threshold control Applied output voltage Reference current Reference amplifier inputs Maximum power dissipation Tamb (still-air)1 package package Lead soldering temperature max) Operating temperature range Storage temperature range PARAMETER RATING plus 1450 1090 +150 UNIT
TSOLD Tamb Tstg
NOTE: Derate above following rates: package 11.6mW/°C package 8.7mW/°C
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
ELECTRICAL CHARACTERISTICS
must least more negative than potential which returned. ±15V IREF Output characteristics refer both IOUT IOUT unless otherwise noted. Tamb DAC-08C SYMBOL PARAMETER Resolution Monotonicity Relative accuracy Differential non-linearity TCIFS IFS4 IFSS IFSR Full-scale tempco Output voltage compliance Full-scale current Full-scale symmetry Zero-scale current Full-scale output current range R14, R15=5.000 VREF +15.0 VREF +25.0 +0.8 -1.0 IREF 13.5 16.5 -4.5 -5.5 -13.5 -16.5 0.0003 0.002 0.01 0.01 0.0003 0.002 0.01 0.01 %FS/%VS %FS/%VS -2.0 0.002 +13.5 -3.0 -1.0 -2.0 0.002 +13.5 -3.0 mA/µs Full-scale current change< 1/2LSB VREF 10.000V; R14, R15=5.000 IFS4-IFS2 1.94 1.99 ±2.0 2.04 1.94 1.99 ±1.0 Over temperature range TEST CONDITIONS ±0.39 ±0.78 2.04 ±8.0 DAC-08E ±0.19 ±0.39 UNIT Bits Bits ppm/°C
VTHR dl/dt
Logic input levels High Logic input current High Logic input swing Logic threshold range Reference bias current Reference input slew rate Power supply sensitivity
PSSIFS+ PSIFS-
Positive Negative Power supply current Positive Negative Positive Negative Positive Negative Power dissipation
IREF IREF IREF IREF IREF IREF
-4.3 -7.1 -7.2
-5.8 -7.8 -7.8
-4.3 -7.1 -7.2
-5.8 -7.8 -7.8
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
ELECTRICAL CHARACTERISTICS (Continued)
must least more negative than potential which returned. IREF Output characteristics refer both IOUT IOUT, unless otherwise noted. Tamb SYMBOL PARAMETER TEST CONDITIONS Resolution Monotonicity Relative accuracy Differential non-linearity TCIFS IFS4 IFSS IFSR Full-scale tempco Output voltage compliance Full-scale current Full-scale symmetry Zero-scale current Full-scale output current range R14, 5.000 VREF +15.0 VREF=+25.0V, V-=-12V +0.8 -1.0 IREF 13.5 16.5 -4.5 -5.5 -13.5 -16.5 0.0003 0.002 0.01 0.01 %FS/%VS %FS/%VS -2.0 0.002 +13.5 -3.0 mA/µs Full-scale current change 1/2LSB VREF 10.000 R14, 5.000 IFS4-IFS2 1.984 1.992 ±1.0 Over temperature range DAC-08H ±0.1 ±0.19 2.000 ±4.0 Bits Bits ppm/°C UNIT
VTHR dl/dt
Logic input levels High Logic input current High Logic input swing Logic threshold range Reference bias current Reference input slew rate Power supply sensitivity
PSSIFS+ PSIFS-
Positive Negative Power supply current Positive Negative Positive Negative Positive Negative Power dissipation
IREF IREF IREF IREF IREF IREF
-4.3 -7.1 -7.2
-5.8 -7.8 -7.8
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER TEST CONDITIONS 1/2LSB, bits switched off, Tamb Tamb each bit. bits switched DAC-08C DAC-08E DAC-08H UNIT
Settling time Propagation delay
tPLH tPHL
Low-to-High High-to-Low
TEST CIRCUITS
VREF
RREF
DAC-08 5-12
CONTROL LOGIC
NE5534
ERROR OUTPUT
REFERENCE ACCURACY 0.006%
SL00003
Figure Relative Accuracy Test Circuit
+2.0 SETTLING TIME MEASUREMENT (ALL BITS SWITCHED HIGH) tPHL tPLH SETTLING TIME TYPICAL ±1/2 TRANSIENT RESPONSE -100 tPLH tPHL TURN MEASUREMENT
DAC-08
SL00004
Figure Transient Response Settling Time
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
TEST CIRCUITS (Continued)
SCOPE DAC-08 OPEN SLEWING TIME
SL00005
Figure Reference Current Slew Rate Measurement
DIGITAL INPUTS DAC-08 OUTPUT VREF
NOTES: (See text values Typical values VREF +2.0
apply inputs through resistor tied temperature compensate bias current necessary applications.
where
High Level Level
SL00006
Figure Notation Definitions
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
TYPICAL PERFORMANCE CHARACTERISTICS
Output Current Output Voltage (Output Voltage Compliance)
BITS OUTPUT CURRENT (mA) -15V IREF 0.2mA (00000000) OUTPUT VOLTAGE 200ns/division 200, 100, (11111111) IREF IOUT -2.5mA 2.0mA IOUT IREF Tmin Tmax 0.5V -0.5mA 1.0mA 2.5V IOUT
Fast Pulsed Reference Operation
True Complementary Output Operation
Full-Scale Settling Time
BITS SWITCHED 2.4V 0.4V OUTPUT 1/2LSB SETTLING +1/2LSB 2.4V LOGIC INPUT 0.4V IOUT
Switching
OUTPUT CURRENT (mA)
Full-Scale Current Reference Current
Tmin Tmax BITS "HIGH" IREF REFERENCE CURRENT (mA) LIMIT V-=-5V LIMIT V-=-15V
50ns/DIVISIOM IFS=2mA, RL=1k 1/2LSB=4µA
50ns/DIVISIOM
Propagation Delay
PROPAGATION DELAY (ns) 1LSB=7.8µA 1LSB=78nA RELATIVE OUTPUT (dB)
Reference Input Frequency Response
R14=R15=1k BITS "ON" VR15 FREQUENCY (MHz)
OUTPUT FULL SCALE CURRENT (mA) NOTES: Curve Curve Curve 15pF, 2.0VP-P centered +1.0V 15pF, 5m0VP-P centered +200mV 15pF, 100m0VP-P centered applied through connected +2.0V applied R14.
SL00007
Figure Typical Performance Characteristics
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Reference Common-Mode Range Bits
OUTPUT CURRENT (mA) IREF IREF 0.2mA -15V IREF LOGIC INPUT CURRENT TMIN TMAX
Logic Input Current Input Voltage
Temperature
REFERENCE COMMON MODE VOLTAGE POSITIVE COMMON-MODE RANGE ALWAYS (V+) -1.5V.
LOGIC INPUT VOLTAGE
TEMPERATURE (°C)
Output Voltage Compliance Temperature
OUTPUT CURRENT (mA) OUTPUT VOLTAGE TEMPERATURE (°C) Shaded area indicates permissible output voltage range -15V, IREF 2.0mA other IREF "Output Current Output Voltage" curve previous page
Transfer Characteristics
POWER SUPPLY CURRENT (mA)
Power Supply Current
POSITIVE POWER SUPPLY (VDC) BITS HIGH
IREF 2.0mA NOTES: -15V
LOGIC INPUT VOLTAGE
through have identical transfer characteristics. Bits fully switched, with less than 1/2LSB error, less than ±100mV from actual threshold. These switching points guaranteed between 2.0V over operating temperature range (VLC 0.0V).
Power Supply Current
POWER SUPPLY CURRENT (mA) -4.0 -8.0 WITH IREF 0.2mA WITH IREF BITS HIGH WITH IREF
Power Supply Current Temperature
POWER SUPPLY CURRENT (mA) TEMPERATURE (°C) +15V IREF 2.0mA BITS HIGH +15V
Maximum Reference Input Frequency Compensation Capacitor Value
10,000
(kHz)
1,000
NEGATIVE POWER SUPPLY (VDC)
(pF) 1000
SL00008
Figure Typical Performance Characteristics (cont.)
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
TYPICAL APPLICATION
+VREF OPTIONAL RESISTOR OFFSET INPUTS RREF =200
Output Voltage Range
voltage must always least more positive than voltage negative supply (Pin when reference current less, least more positive than negative supply when reference current between This necessary avoid saturation output transistors, which would cause serious accuracy degradation.
Output Current Range
NOTES: Typical Values +VIN
time full-scale current exceeds negative supply must least more negative than output voltage. This increased internal voltage drops between negative supply outputs with higher reference currents.
Accuracy
SL00009
Pulsed Referenced Operation Figure Typical Application
FUNCTIONAL DESCRIPTION Reference Amplifier Drive Compensation
reference amplifier input current must always flow into regardless setup method reference supply voltage polarity. Connections positive reference voltage shown Figure reference voltage source supplies full reference current. bipolar reference signals, multiplying mode, tied negative voltage corresponding minimum input level. eliminated with only small sacrifice accuracy temperature drift. compensation capacitor value must increased value increased. This order maintain proper phase margin. values 1.0, 2.5, minimum capacitor values respectively. capacitor tied either ground, using increases negative supply rejection. (Fluctuations negative supply have more effect accuracy than changes positive supply.) negative reference voltage used grounded reference voltage applied shown. high input impedance main advantage this method. negative reference voltage must least above supply. Bipolar input signals handled connecting positive reference voltage equal peak positive input level When using reference voltage, capacitive bypass ground recommended. logic supply recommended reference voltage, well regulated 5.0V supply which drives logic used reference, should formed series resistors with junction resistors bypassed with ground. reference voltages greater than clamp diode recommended between ground. driven high impedance such transistor current source, none above compensation methods applies amplifier must heavily compensated, decreasing overall bandwidth.
Absolute accuracy measure each output current level with respect intended value, dependent upon relative accuracy, full-scale accuracy full-scale current drift. Relative accuracy measure each output current level fraction full-scale current after zero-scale current been nulled out. relative accuracy DAC-08 series essentially constant over operating temperature range excellent temperature tracking monolithic resistor ladder. reference current drift with temperature, causing change absolute accuracy output current. However, DAC-08 series very full-scale current drift over operating temperature range. DAC-08 series guaranteed accurate within full-scale output current 1.992 relative accuracy test circuit shown Figure 12-bit converter calibrated full-scale output current 1.99219 then DAC-08 full-scale current trimmed same value with that zero value appears error amplifier output. counter activated error band displayed oscilloscope, detected comparators, stored peak detector. 8-bit D-to-A converters used construct 16-bit accurate D-to-A converter. 16-bit accuracy implies total part 65,536, ±0.00076%, which much more accurate than ±0.19% specification DAC-08 series.
Monotonicity
monotonic converter which always provides analog output greater than equal preceding value corresponding increment digital input code. DAC-08 series monotonic values reference current above recommended range operation reference current between
Settling Time
worst-case switching condition occurs when bits switched which corresponds low-to-high transition input bits. This time typically settling within 8-bit accuracy. This time applies when RL<500 CO<25 slowest single switch least significant bit, which typically turns settles applications where functions positive-going ramp mode, worst-case condition does occur settling times less than realized. Extra care must taken board layout since this usually dominant factor satisfactory test results when measuring settling time. Short leads, supply bypassing frequencies, minimum scope lead length, avoidance ground loops mandatory.
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
SETTLING TIME PROPAGATION DELAY
+15V VADJ 1000 VREF IREF VOUT 1000 VOUT
-15V
NOTES: IN6263 equivalent IN914 equivalent 0.01µF 0.1µF 2N3904 15pF includes probe fixturing capacitance.
SL00010
Figure Settling Time Propagation Delay
BASIC DAC-08 CONFIGURATION
+VREF RREF (LOW T.C.) IREF
DAC-08
CCOMP 0.1µF 0.1µF
NOTES: logic states
SL00011
Figure Basic DAC-08 Configuration
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
RECOMMENDED FULL-SCALE ZERO-SCALE ADJUST
VREF
DAC-08
NOTES: T.C. minimize pot. contribution full-scale drift
SL00012
Figure Recommended Full-Scale Zero-Scale Adjust
UNIPOLAR VOLTAGE OUTPUT IMPEDANCE OUTPUT
(LOW T.C.)
DAC-08
NE531 EQUIV
VOUT +10V
SL00013
Figure Unipolar Voltage Output Impedance Output
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
UNIPOLAR VOLTAGE OUTPUT HIGH IMPEDANCE OUTPUT
VOUT
DAC-08 VOUT
Positive Output
VOUT
DAC-08
Negative Output
VOUT
SL00014
Figure Unipolar Voltage Output High Impedance Output
BASIC BIPOLAR OUTPUT OPERATION (OFFSET BINARY)
DAC-08 VOUT
VOUT
Positive full-scale Positive 1LSB Zero-scale 1LSB Zero-scale Zero-scale 1LSB Negative full scale 1LSB Negative full scale
VOUT -9.920V -9.840V -0.080V 0.000 0.080 +9.920 +10.000
VOUT +10.000 +9.920 +0.160 +0.080 0.000 -9.840 -9.920
SL00015
Figure Basic Bipolar Output Operation (Offset Binary)
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
DIP16: plastic dual in-line package; leads (300 mil)
SOT38-4
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
SO16: plastic small outline package; leads; body width
SOT109-1
2001
Product data
8-bit high-speed multiplying converter
DAC-08 Series
Data sheet status
Data sheet status Objective data Preliminary data Product status Development Qualification Definitions This data sheet contains data from objective specification product development. Philips Semiconductors reserves right change specification manner without notice. This data sheet contains data from preliminary specification. Supplementary data will published later date. Philips Semiconductors reserves right change specification without notice, order improve design supply best possible product. This data sheet contains data from product specification. Philips Semiconductors reserves right make changes time order improve design, manufacturing supply. Changes will communicated according Customer Product/Process Change Notification (CPCN) procedure SNW-SQ-650A.
Product data
Production
Please consult most recently issued data sheet before initiating completing design. product status device(s) described this data sheet have changed since this data sheet published. latest information available Internet
Definitions
Short-form specification data short-form specification extracted from full data sheet with same type number title. detailed information relevant data sheet data handbook. Limiting values definition Limiting values given accordance with Absolute Maximum Rating System (IEC 60134). Stress above more limiting values cause permanent damage device. These stress ratings only operation device these other conditions above those given Characteristics sections specification implied. Exposure limiting values extended periods affect device reliability. Application information Applications that described herein these products illustrative purposes only. Philips Semiconductors make representation warranty that such applications will suitable specified without further testing modification.
Disclaimers
Life support These products designed life support appliances, devices systems where malfunction these products reasonably expected result personal injury. Philips Semiconductors customers using selling these products such applications their risk agree fully indemnify Philips Semiconductors damages resulting from such application. Right make changes Philips Semiconductors reserves right make changes, without notice, products, including circuits, standard cells, and/or software, described contained herein order improve design and/or performance. Philips Semiconductors assumes responsibility liability these products, conveys license title under patent, copyright, mask work right these products, makes representations warranties that these products free from patent, copyright, mask work right infringement, unless otherwise specified.
Contact information
additional information please visit Fax: 24825
Koninklijke Philips Electronics N.V. 2001 rights reserved. Printed U.S.A. Date release: 10-01
sales offices addresses send e-mail
Document order number:
9397 08922
2001
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