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PDF XRD54L08 Data sheet ( Hoja de datos )
| Número de pieza | XRD54L08 | |
| Descripción | Serial 8/10/12-Bit DAC | |
| Fabricantes | Exar | |
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FEATURES
D 8/10/12-Bit Resolution
D Operates from a Single 3V Supply
D Buffered Voltage Output: 13ms Typical Settling Time
D 145mW Total Power Consumption (typ)
D Guaranteed Monotonic Over Temperature
D Flexible Output Range: 0V to VDD
D 8 Lead SOIC and PDIP Package
D Power On Reset
D Serial Data Output for Daisy Chaining
XRD54L08/L10/L12
3V, Low Power, Voltage Output
Serial 8/10/12-Bit DAC Family
APPLICATIONS
D Digital Calibration
D Battery Operated Instruments
D Remote Industrial Devices
D Cellular Telephones
D Motion Control
D VXCO Control
D Comparator Level Setting
May 2000-2
GENERAL DESCRIPTION
The XRD54L08/L10/L12 are low power, voltage output
digital-to-analog converters (DAC) for +3V power supply
operation. The parts draw only 50mA of quiescent current
and are available in both an 8-lead PDIP and SOIC
package.
The XRD54L08/L10/L12 have a 3 wire serial port with an
output allowing the user to daisy chain several of them
together. The serial port will support both Microwiret,
SPIt, and QSPIt standards.
The outputs of the XRD54L08/L10/L12 are set at a gain of
+2. The output short circuit current is 7mA typical.
ORDERING INFORMATION
Part No.
XRD54L08AID
XRD54L08AIP
XRD54L10AID
XRD54L10AIP
XRD54L12AID
XRD54L12AIP
Package
8 Lead 150 Mil JEDEC SOIC
8 Lead 300 Mil PDIP
8 Lead 150 Mil JEDEC SOIC
8 Lead 300 Mil PDIP
8 Lead 150 Mil JEDEC SOIC
8 Lead 300 Mil PDIP
Operating
Temperature Range
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Rev. 1.30
E2000
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z (510) 668-7017
1 page  
XRD54L08/L10/L12
ELECTRICAL CHARACTERISTICS (CONT’D)
Test Conditions: VDD= 3V, GND= 0V, REFIN= 1.000V (External), RL= 10kW, CL= 100pF, TA= TMIN to TMAX,
Unless Otherwise Noted.
Symbol
tCH
tCL
tDS
tDH
tDO
tCSW
tCS1
Parameter
SCLK High Width
SCLK Low Width
DIN Setup Time
DIN Hold Time
DOUT Valid Propagation Delay
CS High Pulse Width
CS Rise to SCLK Rise Setup
Time
Min.
20
20
10
0
20
10
Typ. Max.
35
35
45
8 15
40
20
Unit Conditions
ns
ns
ns
ns
ns CL= 50pF
ns
ns
Specifications are subject to change without notice
ABSOLUTE MAXIMUM RATINGS
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V, +5V
Digital Input Voltage to GND . . . . . . -0.3V, VDD +0.3V
VREFIN . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V, VDD +0.3V
VOUT1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VDD, GND
Continuous Current, Any Pin . . . . . . . . -20mA, +20mA
Package Power Dissipation Ratings (TA= +70°C)
PDIP (derate 9mW/°C above +70°C) . . . . 117mW
SOIC (derate 6mW/°C above +70°C) . . . 155mW
Operating Temperature Range . . . . . -40°C to + 85°C
Storage Temperature Range . . . . . . -65°C to +165°C
Lead Temperature (soldering, 10 sec) . . . . . . +300°C
Notes
1 Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a
stress rating only and functional operation at or above this specification is not implied. Exposure to maximum rating
conditions for extended periods may affect device reliability.
2 Any input pin which can see a value outside the absolute maximum ratings should be protected by Schottky diode clamps
(HP5082-2835) from input pin to the supplies. All inputs have protection diodes which will protect the device from short
transients outside the supplies of less than 100mA for less than 100ms.
Rev. 1.30
5
5 Page 
XRD54L08/L10/L12
Figure 10. Output Source Current
vs. Output Voltage
Figure 11. Output Sink Current
vs. Output Voltage
16
Rev. 1.30
2mA/div
0
--4
3
.5V/div
Vout (V)
Figure 12. Output Sink and Source Cur-
rent vs. Output Volatge
0
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet XRD54L08.PDF ] | |
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