DAC081S101 Datasheet PDF - National Semiconductor
| Part Number | DAC081S101 | |
| Description | 8-Bit Micro Power Digital-to-Analog Converter with Rail-to-Rail Output | |
| Manufacturers | National Semiconductor | |
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June 2005
DAC081S101
8-Bit Micro Power Digital-to-Analog Converter with
Rail-to-Rail Output
General Description
Features
The DAC081S101 is a full-featured, general purpose 8-bit n Guaranteed Monotonicity
voltage-output digital-to-analog converter (DAC) that can n Low Power Operation
operate from a single +2.7V to 5.5V supply and consumes
just 175 µA of current at 3.6 Volts. The on-chip output
amplifier allows rail-to-rail output swing and the three wire
serial interface operates at clock rates up to 30 MHz over the
specified supply voltage range and is compatible with stan-
dard SPI™, QSPI, MICROWIRE and DSP interfaces. Com-
petitive devices are limited to 20 MHz clock rates at supply
n Rail-to-Rail Voltage Output
n Power-on Reset to Zero Volts Output
n SYNC Interrupt Facility
n Wide power supply range (+2.7V to +5.5V)
n Small Packages
n Power Down Feature
voltages in the 2.7V to 3.6V range.
The supply voltage for the DAC081S101 serves as its volt- Key Specifications
age reference, providing the widest possible output dynamic n Resolution
8 bits
range. A power-on reset circuit ensures that the DAC output
powers up to zero volts and remains there until there is a
valid write to the device. A power-down feature reduces
power consumption to less than a microWatt.
The low power consumption and small packages of the
DAC081S101 make it an excellent choice for use in battery
operated equipment.
The DAC081S101 is a direct replacement for the AD5300
n DNL
+0.04, -0.02 LSB (typ)
n Output Settling Time
3 µs (typ)
n Zero Code Error
3.8 mV (typ)
n Full-Scale Error
−0.07 %FS (typ)
n Power Consumption
— Normal Mode 0.63 mW (3.6V) / 1.41 mW (5.5V) typ
— Pwr Down Mode 0.14 µW (3.6V) / 0.33 µW (5.5V) typ
and is one of a family of pin compatible DACs, includDinagtathSeheeAt4pU.pcolimcations
10-bit DAC101S101 and the 12-bit DAC121S101. The
DAC081S101 operates over the extended industrial tem- n Battery-Powered Instruments
perature range of −40˚C to +105˚C.
n Digital Gain and Offset Adjustment
n Programmable Voltage & Current Sources
n Programmable Attenuators
Pin Configuration
DataShee
20155101
Ordering Information
Order Numbers
DAC081S101CIMM
DAC081S101CIMMX
DAC081S101CIMK
DAC081S101CIMKX
DAC081S101EVAL
Temperature Range
−40˚C ≤ TA ≤ +105˚C
−40˚C ≤ TA ≤ +105˚C
−40˚C ≤ TA ≤ +105˚C
−40˚C ≤ TA ≤ +105˚C
DataSheet4U.coSmPI™ is a trademark of Motorola, Inc.
© 2005 National Semiconductor Corporation
DS201551
DataSheet4 U .com
20155102
Package
MSOP
MSOP Tape-and-Reel
TSOT
TSOT Tape-and-Reel
Evaluation Board
Top Mark
X64C
X64C
X65C
X65C
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A.C. and Timing Characteristics
Values shown in this table are design targets and are subject to change before product release. The following specifica-
tions apply for VA = +2.7V to +5.5V, RL = 2kΩ to GND, CL = 200 pF to GND, fSCLK = 30 MHz, input code range 4 to 251.
Boldface limits apply for TMIN ≤ TA ≤ TMAX: all other limits TA = 25˚C, unless otherwise specified.
Symbol
Parameter
Conductions
Typical
Limits
Units
(Limits)
fSCLK
ts
SR
SCLK Frequency
Output Voltage Settling Time
(Note 10)
Output Slew Rate
40h to C0h code
change, RL = 2kΩ
CL ≤ 200 pF
3
1
30 MHz (max)
5 µs (max)
V/µs
Glitch Impulse
Code change from 80h to 7Fh
12
nV-sec
Digital Feedthrough
0.5 nV-sec
tWU
1/fSCLK
tH
tL
tSUCL
Wake-Up Time
SCLK Cycle Time
SCLK High time
SCLK Low Time
Set-up Time SYNC to SCLK Rising
Edge
VA = 5V
VA = 3V
1.6 µs
1.9 µs
33 ns (min)
5 13 ns (min)
5 13 ns (min)
−15 0 ns (min)
tSUD
Data Set-Up Time
2.5 5 ns (min)
tDHD
Data Hold Time
2.5 4.5 ns (min)
tCS SCLK fall to rise of SYNC
VA = 5V
VA = 3V
0 3 ns (min)
−2 1 ns (min)
tSYNC
SYNC High Time
2.7 ≤ VA ≤ 3.6
3.6 ≤ VA ≤ 5.5
9 20 ns (min)
5 10 ns (min)
et4U.com Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some performancDeachtaarSachteerisetitc4s Uma.cy odemgrade when the device is not operated under the listed test
conditions.
Note 2: All voltages are measured with respect to GND = 0V, unless otherwise specified
Note 3: When the input voltage at any pin exceeds the power supplies (that is, less than GND, or greater than VA), the current at that pin should be limited to 10
mA. The 20 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 10 mA to two.
Note 4: The absolute maximum junction temperature (TJmax) for this device is 150˚C. The maximum allowable power dissipation is dictated by TJmax, the
junction-to-ambient thermal resistance (θJA), and the ambient temperature (TA), and can be calculated using the formula PDMAX = (TJmax − TA) / θJA. The values
for maximum power dissipation will be reached only when the device is operated in a severe fault condition (e.g., when input or output pins are driven beyond the
power supply voltages, or the power supply polarity is reversed). Obviously, such conditions should always be avoided.
Note 5: Human body model is 100 pF capacitor discharged through a 1.5 kΩ resistor. Machine model is 220 pF discharged through ZERO Ohms.
Note 6: See the section entitled "Surface Mount" found in any post 1986 National Semiconductor Linear Data Book for methods of soldering surface mount devices.
Note 7: The analog inputs are protected as shown below. Input voltage magnitudes up to VA + 300 mV or to 300 mV below GND will not damage this device.
However, errors in the conversion result can occur if any input goes above VA or below GND by more than 100 mV. For example, if VA is 2.7VDC, ensure that −100mV
≤ input voltages ≤2.8VDC to ensure accurate conversions.
DataShee
20155104
Note 8: To guarantee accuracy, it is required that VA be well bypassed.
Note 9: Typical figures are at TJ = 25˚C, and represent most likely parametric norms. Test limits are guaranteed to National’s AOQL (Average Outgoing Quality
Level).
Note 10: This parameter is guaranteed by design and/or characterization and is not tested in production.
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for DAC081S101 electronic component. |
| Information | Total 19 Pages | |
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| Product Image and Detail view |  1. 8-Bit, Micro Power D/A Converter [ Learn More ] | |
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