DAC1006LCN National Semiconductor, DAC1006LCN Datasheet

IC DAC 10BIT MPU 20-DIP

DAC1006LCN

Manufacturer Part Number
DAC1006LCN
Description
IC DAC 10BIT MPU 20-DIP
Manufacturer
National Semiconductor
Series
MICRO-DAC™r
Datasheet

Specifications of DAC1006LCN

Settling Time
500ns
Number Of Bits
10
Number Of Converters
1
Voltage Supply Source
Single Supply
Power Dissipation (max)
500mW
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
*
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Interface
-
Other names
*DAC1006LCN

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DAC1006LCN
Quantity:
2 010
Part Number:
DAC1006LCN
Quantity:
200
Part Number:
DAC1006LCN
Manufacturer:
NS
Quantity:
20 000
© 1999 National Semiconductor Corporation
DAC1006/DAC1007/DAC1008
µP Compatible, Double-Buffered D to A Converters
General Description
The DAC1006/7/8 are advanced CMOS/Si-Cr 10-, 9- and
8-bit accurate multiplying DACs which are designed to inter-
face directly with the 8080, 8048, 8085, Z-80 and other
popular microprocessors. These DACs appear as a memory
location or an I/O port to the µP and no interfacing logic is
needed.
These devices, combined with an external amplifier and volt-
age reference, can be used as standard D/A converters; and
they are very attractive for multiplying applications (such as
digitally controlled gain blocks) since their linearity error is
essentially independent of the voltage reference. They be-
come equally attractive in audio signal processing equip-
ment as audio gain controls or as programmable attenuators
which marry high quality audio signal processing to digitally
based systems under microprocessor control.
All of these DACs are double buffered. They can load all 10
bits or two 8-bit bytes and the data format is left justified. The
analog section of these DACs is essentially the same as that
of the DAC1020.
The DAC1006 series are the 10-bit members of a family of
microprocessor-compatible DAC’s (MICRO-DAC’s
applications requiring other resolutions, the DAC0830 series
(8 bits) and the DAC1208 and DAC1230 (12 bits) are avail-
able alternatives.
Typical Application
*
MICRO-DAC
NOTE: FOR DETAILS OF BUS CONNECTION SEE SECTION 6.0
DAC1006
DAC1007
DAC1008
Part #
and BI-FET
Accuracy
are trademarks of National Semiconductor Corp.
(bits)
10
9
8
Pin
20
DS005688
For left-
justified
data
Description
DAC1006/1007/1008
). For
Features
n Uses easy to adjust END POINT specs, NOT BEST
n Low power consumption
n Direct interface to all popular microprocessors
n Integrated thin film on CMOS structure
n Double-buffered, single-buffered or flow through digital
n Loads two 8-bit bytes or a single 10-bit word
n Logic inputs which meet TTL voltage level specs (1.4V
n Works with
n Operates STAND ALONE (without µP) if desired
n Available in 0.3" standard 20-pin package
n Differential non-linearity selection available as special
Key Specifications
n Output Current Settling Time: 500 ns
n Resolution: 10 bits
n Linearity: 10, 9, and 8 bits (guaranteed over temp.)
n Gain Tempco: −0.0003% of FS/˚C
n Low Power Dissipation: 20 mW (including ladder)
n Single Power Supply: 5 to 15 V
STRAIGHT LINE FIT
data inputs
logic threshold)
multiplication
order
±
10V reference — full 4-quadrant
DS005688-1
DC
www.national.com
April 1998

Related parts for DAC1006LCN

DAC1006LCN Summary of contents

Page 1

... Typical Application * NOTE: FOR DETAILS OF BUS CONNECTION SEE SECTION 6.0 MICRO-DAC ™ and BI-FET ™ are trademarks of National Semiconductor Corp. © 1999 National Semiconductor Corporation DS005688 Features n Uses easy to adjust END POINT specs, NOT BEST STRAIGHT LINE FIT n Low power consumption ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( Voltage at Any Digital Input Voltage at V Input REF Storage Temperature Range = 25˚C Package Dissipation (Note 3) DC Voltage Applied OUT1 ...

Page 3

Electrical Characteristics = 4.75 V Tested at V and 15. Parameter Conditions Output I All data inputs OUT1 Capacitance I latched low OUT2 I All data inputs OUT1 I latched high OUT2 Supply Current T T ...

Page 4

Electrical Characteristics = 20K and V Note 10: A 200 nA leakage current with R fb Note 11: Human body model, 100 pF discharged through a 1.5 k Switching Waveforms www.national.com (Continued) −9 = 10V corresponds to a zero error ...

Page 5

Typical Performance Characteristics Errors vs. Supply Voltage DS005688-29 Control Setup Time DS005688-32 Digital Threshold vs. Supply Voltage DS005688-35 Errors vs. Temperature DS005688-30 Data Setup Time DS005688-33 Digital Input Threshold vs. Temperature 5 Write Width ...

Page 6

Block and Connection Diagrams Use DAC1006/1007/1008 for left justified data. www.national.com DAC1006/1007/1008 (20-Pin Parts) DAC1006/1007/1008 (20-Pin Parts) Dual-In-Line Package DS005688-28 Top View See Ordering Information 6 DS005688-5 ...

Page 7

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” TOTAL OF 10 INPUT SWITCHES & 1K RESISTORS Notes: = −10.240 V 1. For V the output voltage steps are approximately 10 mV each. REF DC 2. SW1 is a ...

Page 8

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” a. End Point Test After Zero and FS Adj. DS005688-37 Settling Time: Settling time is the time required from a code transition until the DAC output reaches within final output value. Full-scale ...

Page 9

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” FIGURE 1. Basic Logic Threshold Loop 4.2 Op Amp Bias Current & Input Leads The op amp bias current (I ) CAN CAUSE DC ERRORS. B BI-FET ™ op amps have very ...

Page 10

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” 5.1.2 Providing a Bipolar Output Voltage with the DAC in the Current Switching Mode The addition of a second op amp to the circuit of Figure 4 can be used to generate ...

Page 11

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” Operation is summarized in the table below: 2’s Comp. 2’s Comp. (Decimal) (Binary) +511 0111111111 +256 0100000000 0 0000000000 −1 1111111111 −256 1100000000 −512 1000000000 FIGURE 4. Providing a Unipolar Output Voltage ...

Page 12

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” FIGURE 6. FIGURE 9. Amplifying the Voltage Mode Output (Single Supply Operation) FIGURE 10. Providing a Bipolar Output Voltage with a Single Op Amp www.national.com DS005688-43 DIGITAL INPUT CODE FIGURE 8. Voltage ...

Page 13

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” FIGURE 11. Increasing the Output Voltage Swing The output voltage swing can be expanded by adding 2 re- sistors to Figure 10 as shown in Figure 11 . These added re- sistors ...

Page 14

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” FIGURE 12. Full Scale Adjust — Current Switching with Bipolar Output Voltage FIGURE 13. Full Scale Adjust — Voltage Switching with a Unipolar Output Voltage FIGURE 14. Voltage Switching with a Bipolar ...

Page 15

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” on how the 2nd digital data buffer (the DAC Latch) is up- dated by a transfer from the 1st digital data buffer (the Input Latch). Three options are provided automatic ...

Page 16

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” DAC1006/1007/1008 (20-Pin Parts for Left Justified Data) FIGURE 15. Fitting a 10-Bit Data Word into 16 Available Bit Locations FIGURE 16. Input Connections and Controls for DAC1006/1007/1008 Left Justified Data www.national.com (Continued) ...

Page 17

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” 6.2.1 Automatic Transfer This makes use of a double byte (double precision) write. The first byte (8 bits) is strobed into the input latch and the second byte causes a simultaneous strobe ...

Page 18

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” FIGURE 17. Input Connections and Logic for DAC1006/1007/1008 with 16-Bit Data Bus Three operating modes are possible: flow through, single buffered, or double buffered. The timing diagrams for these are shown below: ...

Page 19

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” the implementation of the PUSH instruction which will output the higher order byte of the register pair (i.e., register B of the BC pair) first. The DAC will actually appear as a ...

Page 20

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” cur every time the data bus changes state. Another method FIGURE 19. DAC1000 to MC6820/1 PIA Interface NOTE: DATA HOLD TIME REDUCED TO THAT OF DM74LS374 ( 10 ns) FIGURE 20. Isolating ...

Page 21

DAC1006/1007/1008 — Simple Hookup for a “Quick Look” FIGURE 21. Digitally Controlled Amplifier/Attenuator 7.4 Digitally Controlled Amplifier/Attenuator An unusual application of the DAC, Figure 21 , applies the in- put voltage via the on-chip feedback resistor. The lower op amp ...

Page 22

22 ...

Page 23

... Ordering Information For Left Justified Data — 20-pin package. Accuracy 0.05% (10-bit) DAC1006LCN 0.10% (9-bit) DAC1007LCN 0.20% (8-bit) DAC1008LCN Package Outline Physical Dimensions inches (millimeters) unless otherwise noted Temperature Range 0˚ to +70˚C DAC1006LCWM N20A M20B Order Number DAC1006LCWM NS Package Number M20B 23 www ...

Page 24

... Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Order Number DAC1006LCN, DAC1007LCN or DAC1008LCN LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE- VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI- CONDUCTOR CORPORATION. As used herein: 1 ...

Related keywords