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Numéro de sérieDAC8411
CategorieData Conversion => DAC (Digital to Analog Converters) => 10-14 bit => 14 bit
Description16bit, Single Channel, 80uA, 1.8V-5.5V DAC In SC70 Package
The DAC8311 (14-bit) and DAC8411 (16-bit) are low-power, single-channel, voltageoutput digital-to-analog converters (DAC). They provide excellent linearity and minimize undesired code-to-code transient voltages while offering an easy upgrade path within a pin-compatible family. All devices use a versatile, 3-wire serial interface that operates at clock rates of up to 50MHz and is compatible with standard SPI, QSPI, MICROWIRE, and digital signal processor (DSP) interfaces.
SociétéTexas Instruments, Inc.
DatasheetTélécharger DAC8411 datasheet
 
 
  • Description courte

  • FEATURES
    DESCRIPTION

    The DAC8311 (14-bit) and DAC8411 (16-bit) are low-power, single-channel, voltage output digital-to-analog converters (DAC). They provide excellent linearity and minimize undesired code-to-code transient voltages while offering an easy upgrade path within a pin-compatible family. All devices use a versatile, 3-wire serial interface that operates at clock rates to 50MHz and is compatible with standard SPITM, QSPITM, MICROWIRETM, and digital signal processor (DSP) interfaces. All devices use an external power supply as a reference voltage to set the output range. The devices incorporate a power-on reset (POR) circuit that ensures the DAC output powers at 0V and remains there until a valid write to the device occurs. The DAC8311 and DAC8411 contain a power-down feature, accessed over the serial interface, that reduces current consumption of the device 1.8V in power down mode. The low power consumption of this part in normal operation makes it ideally suited for portable, battery-operated equipment. The power consumption at 5V, reducing 2.5µW in power-down mode. These devices are pin-compatible with the DAC5311, DAC6311, and DAC7311, offering an easy upgrade path from 8-, 10-, and 12-bit resolution to 14- and 16-bit. All devices are available in a small, 6-pin, SC70 package. This package offers a flexible, pin-compatible, and functionally-compatible drop-in solution within the family over an extended temperature range to +125°C.

    · Relative Accuracy: ­ 1 LSB INL ­ 4 LSB INL (DAC8411: 16-bit)· microPower Operation: at 1.8V· Power-Down: at 1.8V· Wide Power Supply: to +5.5V· Power-On Reset to Zero Scale· Straight Binary Data Format· Low Power Serial Interface with Schmitt-Triggered Inputs: to 50MHz· On-Chip Output Buffer Amplifier, Rail-to-Rail Operation· SYNC Interrupt Facility· Extended Temperature Range to +125°C· Pin-Compatible Family in a Tiny, 6-Pin SC70 Package

    APPLICATIONS

    · Portable, Battery-Powered instruments Process Control Digital Gain and Offset Adjustment Programmable Voltage and Current Sources

    Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. SPI, QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corporation. All other trademarks are the property of their respective owners.

    PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

    This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

    MAXIMUM RELATIVE ACCURACY (LSB) ±8 ±4 MAXIMUM DIFFERENTIAL NONLINEARITY (LSB) ±2 ±1 SPECIFIED TEMPERATURE RANGE to 125°C

    For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com.

    PARAMETER AVDD to GND Digital input voltage to GND AVOUT to GND Operating temperature range Storage temperature range Junction temperature (TJ max) Power dissipation JA thermal impedance (1) VALUE ­0.3 to +AVDD ­0.3 to +AVDD to +150 (TJ max ­ TA)/JA 250 °C/W UNIT V °C

    Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to absolute maximum conditions for extended periods may affect device reliability.

    Submit Documentation Feedback Product Folder Link(s): DAC8311 DAC8411
    At AVDD 2k to GND, and pF to GND, unless otherwise noted.

    DAC8411, DAC8311 PARAMETER STATIC PERFORMANCE (1) Resolution DAC8411 Relative accuracy Differential nonlinearity Resolution DAC8311 Relative accuracy Differential nonlinearity Offset error Offset error drift Zero code error Full-scale error Gain error Gain temperature coefficient OUTPUT CHARACTERISTICS (3) Output voltage range Output voltage settling time Slew rate Capacitive load stability Code change glitch impulse Digital feedthrough Power-on glitch impulse DC output impedance Short-circuit current Power-up time AC PERFORMANCE SNR THD SFDR SINAD DAC output noise density (4) DAC output noise TA= +25°C, at zero-scale input, fOUT = 1kHz, AVDD = 5V TA= +25°C, at mid-code input, fOUT = 1kHz, AVDD = 5V TA= +25°C, at mid-code input, to 10Hz, AVDD = 5V TA= 20kHz, 16-bit level, AVDD = 5V, fOUT 1st 19 harmonics removed for SNR calculation dB nV/Hz µVpp AVDD = +5V AVDD = +3V Coming out of power-down mode = 200pF, AVDD 2k 1LSB change around major carry = 200 pF, AVDD 5V, 1/4 scale to 3/4 scale = 470pF AVDD V µs V/µs pF nV-s mA µs AVDD = +5V AVDD = +1.8V All zeros loaded to the DAC register All ones loaded to DAC register Measured by the line passing through two codes (2) Measured by the line passing through codes 120 and Measured by the line passing through codes 485 and to 5V Bits LSB Bits LSB mV µV/°C % of FSR % of FSR ppm of FSR/°C TEST CONDITIONS MIN TYP MAX UNIT

    Linearity calculated using a reduced code range to 64714 for 16-bit, and to 16200 for 14-bit, output unloaded. Straight line passing through codes 485 and 64714 for 16-bit, and 120 and 16200 for 14-bit, output unloaded. Specified by design and characterization, not production tested. For more details, see Figure 31. For more details, see Figure 32.