HomedatasheetDAC80P-CBI-V-BI

DAC80P-CBI-V-BI Datasheet

ti DAC8043, CMOS 12-Bit Serial Input Mulitplying Digital-to-analog Converter
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Description

Features, Applications

CMOS 12-Bit Serial Input Multiplying DIGITAL-TO-ANALOG CONVERTER
FEATURES

q 12-BIT ACCURACY IN 8-PIN SOIC q FAST 3-WIRE SERIAL INTERFACE q LOW INL AND DNL: �1/2 LSB max q GAIN ACCURACY TO �1LSB max q LOW GAIN TEMPCO: 5ppm/�C max q OPERATES WITH +5V SUPPLY q TTL/CMOS COMPATIBLE q ESD PROTECTED

APPLICATIONS

q AUTOMATIC CALIBRATION q MOTION CONTROL q MICROPROCESSOR CONTROL SYSTEMS q PROGRAMMABLE AMPLIFIER/ ATTENUATORS q DIGITALLY CONTROLLED FILTERS

DESCRIPTION

The a 12-bit current output multiplying digital-to-analog converter (DAC) that is packaged in a space-saving, surface-mount 8-pin SOIC. Its 3-wire serial interface saves additional circuit board space which results in low power dissipation. When used with microprocessors having a serial port, the DAC8043 minimizes the digital noise feedthrough from its input to output. The serial port can be used as a dedicated analog bus and kept inactive while the is in use. Serial interfacing reduces the complexity of opto or transformer isolation applications. The DAC8043 contains a 12-bit serial-in, parallel-out shift register, a 12-bit DAC register, a 12-bit CMOS DAC, and control logic. Serial input (SRI) data is clocked into the input register on the rising edge of the clock (CLK) pulse. When the new data word had been clocked in, it is loaded into the DAC register by taking the LD input low. Data in the DAC register is converted to an output current by the D/A converter. The DAC8043 operates from a single +5V power supply which makes the DAC8043 an ideal low power, small size, high performance solution for several applications.

International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111 Twx: 910-952-1111 Internet: http://www.burr-brown.com/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132

SPECIFICATIONS

At VDD = +5V; VREF = +10V; IOUT = GND TA = Full Temperature Range specified under Absolute Maximum Ratings, unless otherwise noted. DAC8043U PARAMETER STATIC PERFORMANCE Resolution Nonlinearity(1) Differential Nonlinearity(2) Gain Error(3) Gain Tempco(5) Power Supply Rejection Ratio Output Leakage Current(4) Zero Scale Error(7, 12) Input Resistance

TA = Full Temp Range VDD TA = Full Temp Range TA = Full Temp Range 7 �0.0006
AC PERFORMANCE Output Current Settling Time(5, 6) Digital-to-Analog Glitch Energy(5, 10)

= +25�C VREF 0V Q IOUT = Load = 100 CEXT = 13pF DAC Register Loaded Alternately with all 0s and all 1s Feedthrough 11) FT VREF = 10kHz (VREF to IOUT) Digital Input = +25�C Total Harmonic Distortion(5) THD VREF at 1kHz DAC Register Loaded with all 1s Output Noise Voltage to 100kHz Between RFB and IOUT VIH VIL IIL CIN COUT 2.4 VIN to +5V VIN = 0V Digital Inputs = VIH Digital Inputs = VIL TA Full Temperature Range Digital Inputs = VIH or VIL Digital Inputs 0V or VDD

DIGITAL INPUTS Digital Input High Digital Input Low Input Leakage Current(9) Input Capacitance(5, 11) ANALOG OUTPUTS Output Capacitance(5) TIMING CHARACTERISTICS(5, 14) Data Setup Time Data Hold Time Clock Pulse Width High Clock Pulse Width Low Load Pulse Width LSB Clock into Input Register to Load DAC Register Time POWER SUPPLY Supply Voltage Supply Current

NOTES: (1) �1/2 LSB �0.012% of Full Scale. (2) All grades are monotonic to 12-bits over temperature. (3) Using internal feedback resistor. (4) Applies to IOUT; All digital inputs 0V. (5) Guaranteed by design and not tested. (6) IOUT Load = 100, CEXT = 13pF, digital input 0V to VDD or VDD to 0V. Extrapolated to 1/2 LSB: tS = propagation delay (tPD) + 9 where = measured time constant of the final RC decay. (7) VREF = +10V, all digital inputs 0V. (8) Absolute temperature coefficient is less than �50ppm/�C. (9) Digital inputs are CMOS gates: IIN is typically +25�C. (10) VREF = 0V, all digital inputs 0V to VDD or VDD 0V. (11) All digital inputs 0V. (12) Calculated from worst case RREF: IZSE (in LSBs) = (RREF X ILKG 4096)/VREF. (13) Calculations from = 4K TRB where: K = Boltzmann constant, J/�K, R = resistance,. T = Resistor temperature, �K, B = bandwidth, Hz. (14) Tested at VIN 0V or VDD.

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.

PARAMETER STATIC ACCURACY Resolution Integral Nonlinearity Differential Nonlinearity Gain Error Power Supply Rejection Ratio Output Leakage Current (IOUT) REFERENCE INPUT Input Resistance DIGITAL INPUTS Digital Input HIGH Digital Input LOW Input Leakage Current POWER SUPPLY Supply Current

Using Internal Feedback Resistor VDD = �5% Digital Inputs = VIL

NOTE: Electrical tests are performed at wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed for standard product dice. Consult factory to negotiate specifications based on dice lot qualifications through sample lot assembly and testing.

VDD to GND.................................................................................. 0V, +7V VREF to GND...................................................................................... �25V VRFB to GND...................................................................................... �25V Digital Input Voltage Range................................................. �0.3V to VDD Output Voltage (Pin V to VDD Operating Temperature Range AD........................................................................................ +70�C U, UC............................................................................... to +85�C Junction Temperature.................................................................... +150�C Storage Temperature.................................................... + 150�C Lead Temperature (soldering, +300� C JA.......................................................................................................................... +100�C/W JC........................................................................................... +42�C/W CAUTION: 1. Do not apply voltages higher than VDD or less than GND potential on any terminal except VREF (Pin 1) and RFB (Pin 2). 2. The digital control inputs are ESD protected: however, permanent damage may occur on unprotected units from high-energy electrostatic fields. Keep units in conductive foam at all times until ready to use. 3. Use proper anti-static handling procedures. 4. Absolute Maximum Ratings apply to both packaged devices. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device.

Any integrated circuit can be damaged by ESD. Burr-Brown 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 published specifications. Digital Inputs: All digital inputs of the DAC8043 incorporate on-chip ESD protection circuitry. This protection is designed and has been tested to withstand five 2500V positive and negative discharges (100pF in series with 1500) applied to each digital input. Analog Pins: Each analog pin has been tested to BurrBrown's analog ESD test consisting of five 1000V positive and negative discharges (100pF in series with 1500) applied to each pin. VREF and RFB show some sensitivity. 3

NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book.


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