xrd54l10 Exar Corporation, xrd54l10 Datasheet

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xrd54l10

Manufacturer Part Number
xrd54l10
Description
Xrd54l10 -ultra Low Power 3v Digital To Analog Converter
Manufacturer
Exar Corporation
Datasheet
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 V
D 8 Lead SOIC and PDIP Package
D Power On Reset
D Serial Data Output for Daisy Chaining
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
ORDERING INFORMATION
E2000
Rev. 1.30
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z (510) 668-7017
XRD54L08AID
XRD54L10AID
XRD54L12AID
XRD54L08AIP
XRD54L10AIP
XRD54L12AIP
Part No.
DD
8 Lead 150 Mil JEDEC SOIC
8 Lead 150 Mil JEDEC SOIC
8 Lead 150 Mil JEDEC SOIC
8 Lead 300 Mil PDIP
8 Lead 300 Mil PDIP
8 Lead 300 Mil PDIP
Package
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
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.
3V, Low Power, Voltage Output
Serial 8/10/12-Bit DAC Family
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
Operating
May 2000-2

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xrd54l10 Summary of contents

Page 1

... PDIP and SOIC package. The XRD54L08/L10/L12 have a 3 wire serial port with an ORDERING INFORMATION Part No. XRD54L08AID XRD54L08AIP XRD54L10AID XRD54L10AIP XRD54L12AID XRD54L12AIP Rev. 1.30 E2000 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z (510) 668-7017 APPLICATIONS D Digital Calibration ...

Page 2

BLOCK DIAGRAM AGND SCLK SDIN PIN CONFIGURATION SDIN SCLK CS DOUT 8 Lead SOIC (Jedec, 0.150”) PIN DESCRIPTION Pin # Symbol 1 SDIN 2 SCLK DOUT 5 AGND 6 V REFIN 7 V OUT ...

Page 3

... Differential Nonlinearity V Offset Error OS TCV Offset Tempco OS PSRR Offset-Error Power-Supply Rejection Ratio GE Gain Error TCGE Gain-Error Tempco PSRR Power-Supply Rejection Ratio Static Performance XRD54L10 N Resolution INL Relative Accuracy DNL Differential Nonlinearity V Offset Error OS TCV Offset Tempco OS PSRR Offset-Error Power-Supply Rejection Ratio GE ...

Page 4

ELECTRICAL CHARACTERISTICS Test Conditions 3V, GND= 0V, REFIN= 1.000V (External Unless Otherwise Noted. Symbol Parameter Voltage Output (V ) XRD54L08/L10/L12 OUT V Output Voltage Range O V Output Load Regulation REG +I Short-Circuit Current, Sink SC ...

Page 5

ELECTRICAL CHARACTERISTICS Test Conditions 3V, GND= 0V, REFIN= 1.000V (External Unless Otherwise Noted. Symbol Parameter t SCLK High Width CH t SCLK Low Width Setup Time Hold Time DH ...

Page 6

TIMING CS t CSH0 t CSS SCLK SDIN DOUT 1111 1000 1000 0111 0000 0000 Note: Write 8-bit data words with four sub-LSB 0s because the DAC input latch is 12 bits wide. Rev. 1.30 t ...

Page 7

THEORY OF OPERATION XRD54L08/L10/L12 Description The XRD54L08/L10/L12 are micro-power, voltage output, serial daisy-chain programmable DACs operating from a single 3V power supply. The DACs are built on a 0.6 micron CMOS process. The features of these DACs make it well ...

Page 8

... Microwire Port Figure 4. Typical Microwiret Application Circuit SPI t Port Figure 5. Typical SPIt Application Circuit Rev. 1.30 SK SCLK XRD54L12 t SO SDIN I/O CS GND SK SCLK XRD54L10 MOSI SDIN I/O CS GND 8 +5V MP5010 1.25V V REFIN V 0-2.5V OUT V DD +3V 0.1mF +5V MP5010 1.25V V REFIN V 0-2.5V OUT V DD +3V 0.1mF ...

Page 9

... XXXX XXXXXXXX XRD54L08 Table 2. 16-Bit Digital Word Register for XRD54L08, XRD54L10, XRD54L12. SCLK should be held low when CS transitions low. Data is clocked in on the rising edge of SCLK when CS is low. SDIN data is held bit serial shift register. The DAC is updated with the data bits on the rising edge of CS. ...

Page 10

... Figure 9. XRD54L08 DNL (For XRD54L10 and XRD54L12, Scale Axes Accordingly) Rev. 1.30 Power Supply and Grounding Best parametric results are obtained by powering the XRD54L08/L10/L12 family of DACs from an analog +3V power supply and analog ground. Digital power supplies and grounds should be separated or connected to the analog supplies and grounds only at the low-impedance power-supply source ...

Page 11

Figure 12. Output Sink and Source Cur- Rev. 1.30 XRD54L08/L10/L12 Figure 10. Output Source Current vs. Output Voltage Figure 11. Output Sink Current vs. Output Voltage .5V/div Vout (V) rent vs. Output Volatge 11 0 ...

Page 12

Figure 13. Voltage Output Settling Time ( --40 --20 Rev 1V, No Load DD REFIN Temp ( C ) Figure ...

Page 13

Figure 15. Closed Loop Gain vs. Frequency 0 -20 -40 -60 -80 -100 -120 10 Figure 16. Closed Loop Phase vs. Frequency Microwiret is a trademark of National ...

Page 14

LEAD PLASTIC DUAL-IN-LINE A Seating Plane L SYMBOL Note: The control dimension is the inch column Rev. 1.30 (300 ...

Page 15

Seating Plane SYMBOL Note: The control dimension is the millimeter column Rev. 1.30 XRD54L08/L10/L12 8 LEAD SMALL OUTLINE (150 MIL JEDEC SOIC) Rev. 1. ...

Page 16

... While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized ...

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