DAC121S101QML

Manufacturer Part NumberDAC121S101QML
ManufacturerTexas Instruments
DAC121S101QML datasheet
 


Specifications of DAC121S101QML

Resolution(bits)12Dac: Channels1
InterfaceSerial SPIOutput TypeVoltage
Output Range Max.(v Or Ma)5.5Settling Time(µs)12.5
Reference: TypeSupplyDnl(max)(+/-lsb)1
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DAC121S101QML
DAC121S101QML 12-Bit Micro Power Digital-to-Analog Converter with
Rail-to-Rail Output
Literature Number: SNAS410C

DAC121S101QML Summary of contents

  • Page 1

    ... DAC121S101QML DAC121S101QML 12-Bit Micro Power Digital-to-Analog Converter with Rail-to-Rail Output Literature Number: SNAS410C ...

  • Page 2

    ... Ordering Information NS Part Number DAC121S101WGRQV Flight Part DAC121S101WGMPR Pre-flight Prototype DAC121S101CVAL Ceramic Evaluation Board SPI ™ trademark of Motorola, Inc. © 2010 National Semiconductor Corporation DAC121S101QML Features ■ Total Ionizing Dose ■ Single Event Latch-up ■ Guaranteed Monotonicity ■ Low Power Operation ■ ...

  • Page 3

    Connection Diagrams Block Diagram www.national.com 10LD Ceramic SOIC 30018001 Top View See NS Package Number WG10A 2 30018003 ...

  • Page 4

    Absolute Maximum Ratings (Note 1, Note 2) Supply Voltage Voltage on any Input Pin −0 Input Current at Any Pin (Note 3) Maximum Output Current (Note 10) V Pin in Powerdown Mode OUT Package Input ...

  • Page 5

    DAC121S101 Electrical Characteristics DC Parameters The following specifications apply for V 4047. Boldface limits apply for T MIN Symbol Parameter STATIC PERFORMANCE Resolution Monotonicity INL Integral Non-Linearity DNL Differential Non-Linearity ZE Zero Code Error FSE Full-Scale Error GE Gain Error ...

  • Page 6

    DC Parameters (Continued) The following specifications apply for V 4047. Boldface limits apply for T MIN Symbol Parameter LOGIC INPUT I Input Current IN V Input Low Voltage IL V Input High Voltage IH C Input Capacitance IN POWER REQUIREMENTS ...

  • Page 7

    AC and Timing Characteristics The following specifications apply for V 4047. Boldface limits apply for T MIN Symbol Parameter f SCLK Frequency SCLK t Output Voltage Settling Time s SR Output Slew Rate Glitch Impulse Digital Feedthrough t Wake-Up Time ...

  • Page 8

    Radiation Electrical Characteristics The following specifications apply for V 4047. Symbol Parameter POWER REQUIREMENTS I Supply Current (output unloaded) A Operating Life Test Delta Parameters T Symbol Parameter INL Integral non-linearity ts Output voltage settling time I Supply Current (output ...

  • Page 9

    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 ...

  • Page 10

    Specification Definitions DIFFERENTIAL NON-LINEARITY (DNL) is the measure of the maximum deviation from the ideal step size of 1 LSB, which 4096 = V / 4096. REF A DIGITAL FEEDTHROUGH is a measure of the energy inject- ...

  • Page 11

    Transfer Characteristic Timing Diagram www.national.com FIGURE 1. Input / Output Transfer Characteristic FIGURE 2. DAC121S101 Timing 10 30018005 30018006 ...

  • Page 12

    Typical Performance Characteristics otherwise stated DNL 2.7V A INL 2.7V A DNL vs MHz 25C, Input Code Range 48 to 4047, unless SCLK A DNL at V ...

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    DNL vs. f 2.7V DNL vs. Clock Duty Cycle 2.7V DNL vs. Temperature www.national.com SCLK 30018050 30018056 30018026 12 5.5V DNL vs. f SCLK 30018051 5.5V DNL vs. Clock Duty Cycle 30018057 5.5V DNL vs. Temperature 30018027 ...

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    INL vs. f SCLK 30018028 2.7V INL vs. Clock Duty Cycle 30018030 2.7V INL vs. Temperature 30018032 5.5V INL vs. f SCLK 5.5V INL vs. Clock Duty Cycle 5.5V INL vs. Temperature 13 30018029 30018031 30018033 www.national.com ...

  • Page 15

    Zero Code Error vs. f Full-Scale Error vs. f Supply Current vs. V www.national.com Zero Code Error vs. Temperature SCLK 30018034 Full-Scale Error vs. Temperature SCLK 30018037 Supply Current vs. Temperature A 30018044 14 30018036 30018039 30018045 ...

  • Page 16

    Glitch Response 30018046 3V Wake-Up Time 30018048 Power-On Reset 5V Wake-Up Time 15 30018047 30018049 www.national.com ...

  • Page 17

    Functional Description 1.1 DAC SECTION The DAC121S101 is fabricated on a CMOS process with an architecture that consists of switches and a resistor string that are followed by an output buffer. The power supply serves as the reference voltage. ...

  • Page 18

    Normally, the SYNC line is kept low for at least 16 falling edges of SCLK and the DAC is updated on the 16th SCLK falling edge. However, if SYNC is brought high before the 16th falling edge, the shift register ...

  • Page 19

    FIGURE 8. Microwire Interface 2.2 USING REFERENCES AS POWER SUPPLIES Recall the need for a quiet supply source for devices that use their power supply voltage as a reference voltage. Since the DAC121S101 consumes very little power, a refer- ence ...

  • Page 20

    FIGURE 11. Using the LP3985 regulator An input capacitance of 1.0µF without any ESR requirement is required at the LP3985 input, while a 1.0µF ceramic ca- pacitor with an ESR requirement of 5mΩ to 500mΩ is required at the output. ...

  • Page 21

    Radiation Environments Careful consideration should be given to environmental con- ditions when using a product in a radiation environment. 3.1 Total Ionizing Dose Radiation hardness assured (RHA) products are those part numbers with a total ionizing dose (TID) level ...

  • Page 22

    Revision History Date Relased Revision 05/05/08 A 08/14/08 B Ordering Information Table Ordering Information Table, AC and 07/15/09 C Timing Electrical Characteristics Ordering Information Table, Note Section, 05/06/2010 D Operating Life Test Delta Table and Section 3.0 Radiation Environments Section ...

  • Page 23

    Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 10-Pin Ceramic SOIC NS Package Number WG10A 22 ...

  • Page 24

    Notes 23 www.national.com ...

  • Page 25

    For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs ...

  • Page 26

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...