DAC7573IPWR

DAC7573 www.ti.com SLAS398 – SEPTEMBER 2003 QUAD, 12-BIT, LOW-POWER, VOLTAGE OUTPUT, I C INTERFACE DIGITAL-TO-ANALOG CONVERTER 2 FEATURES DESCRIPTION • • • • • • • The DAC7573 is a low-power, quad channel, 12-bit buffered voltage output DAC. Its on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The DAC7573 utilizes an I2C compatible two wire serial interface supporting high-speed interface mode with address support of up to sixteen DAC7573s for a total of 64 channels on the bus. • • • • • Micropower Operation: 600 µA at 5 V VDD Power-On Reset to Zero +2.7-V to +5.5-V Analog Power Supply 12-Bit Monotonic I2C™ Interface up to 3.4 Mbps Data Transmit Capability On-Chip Output Buffer Amplifier, Rail-to-Rail Operation Double-Buffered Input Register Address Support for up to Sixteen DAC7573s Synchronous Update Support for up to 64 Channels Operation From –40°C to 105°C Small 16 Lead TSSOP Package The low power consumption of this part in normal operation makes it ideally suited to portable battery operated equipment. The power consumption is less than 3 mW at VDD=5 V reducing to 1 µW in power-down mode. APPLICATIONS • • • • • Process Control Data Acquisition Systems Closed-Loop Servo Control PC Peripherals Portable Instrumentation VDD The DAC7573 requires an external reference voltage to set the output range of the DAC. The DAC7573 incorporates a power-on-reset circuit that ensures that the DAC output powers up at zero volts and remains there until a valid write takes place in the device. The DAC7573 contains a power-down feature, accessed via the internal control register, that reduces the current consumption of the device to 200 nA at 5 V. The DAC7573 is available in a 16-lead TSSOP package. IOVDD VREFH Data Buffer A DAC Register A VOUTA DAC A VOUTB VOUTC 18 SCL SDA Data Buffer D DAC Register D Buffer Control Register Control I2C Block DAC D Power-Down Control Logic Resistor Network 8 A0 A1 GND VOUTD A2 A3 LDAC VREFL 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. I2C is a trademark of Philips Corporation. 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. Copyright © 2003, Texas Instruments Incorporated DAC7573 www.ti.com SLAS398 – SEPTEMBER 2003 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. PACKAGE/ORDERING INFORMATION PRODUCT PACKAGE PACKAGE DRAWING NUMBER SPECIFICATION TEMPERATURE RANGE PACKAGE MARKING DAC7573 16-TSSOP PW –40°C TO +105°C D7573I ORDERING NUMBER TRANSPORT MEDIA DAC7573IPW 90 Piece Tube DAC7573IPWR 2000 Piece Tape and Reel PW PACKAGE (TOPVIEW) PIN DESCRIPTIONS PIN 16 A3 NAME DESCRIPTION 1 VOUTA Analog output voltage from DAC A 2 VOUTB Analog output voltage from DAC B Positive reference voltage input VOUTA 1 VOUTB 2 15 A2 3 3 14 A1 VREFH VREFH 4 VDD VDD 4 13 A0 5 VREFL Negative reference voltage input VREFL 5 12 IOVDD 6 GND GND 6 11 SDA Ground reference point for all circuitry on the part VOUTC 7 10 SCL VOUTD 8 9 LDAC DAC7573 Analog voltage supply input 7 VOUTC Analog output voltage from DAC C 8 VOUTD Analog output voltage from DAC D 9 LDAC 10 SCL H/W synchronous VOUT update Serial clock input 11 SDA Serial data input 12 IOVDD 13 A0 Device address select - I2C 14 A1 Device address select - I2C 15 A2 Device address select - Extended 16 A3 Device address select - Extended I/O voltage supply input ABSOLUTE MAXIMUM RATINGS (1) VDD to GND –0.3 V to +6 V Digital input voltage to GND –0.3 V to VDD + 0.3 V VOUT to GND –0.3 V to VDD + 0.3 V Operating temperature range –40°C to +105°C Storage temperature range –65°C to +150°C Junction temperature range (TJ max) Power dissipation: Lead temperature, soldering: (1) 2 +150°C Thermal impedance (ΘJA) 161°C/W Thermal impedance (ΘJC) 29°C/W Vapor phase (60s) 215°C Infrared (15s) 220°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. DAC7573 www.ti.com SLAS398 – SEPTEMBER 2003 ELECTRICAL CHARACTERISTICS VDD = 2.7 V to 5.5 V, RL = 2 kΩ to GND; CL = 200 pF to GND; all specifications -40°C to +105°C, unless otherwise specified. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS STATIC PERFORMANCE (1) (2) Resolution 12 Bits Relative accuracy Differential nonlinearity Specified monotonic by design ±8 LSB ±1 LSB Zero-scale error 5 20 mV Full-scale error -0.15 ±1.0 % of FSR ±1.0 % of FSR Gain error Zero code error drift ±7 µV/°C Gain temperature coefficient ±3 ppm of FSR/°C OUTPUT CHARACTERISTICS (3) Output voltage range Output voltage settling time (full scale) 0 Digital-to-analog glitch impulse 12 µs 1 V/µs 0.02 LSB 1 kHz Sine Wave -100 dB RL= ∞ 470 pF RL= 2 kΩ 1000 pF 1 LSB change around major carry 12 nV-s 0.3 nV-s 1 Ω VDD= 5 V 50 mA VDD= 3 V 20 mA Coming out of power-down mode, VDD= +5 V 2.5 µs Coming out of power-down mode, VDD= +3 V 5 µs Digital feedthrough DC output impedance Short-circuit current Power-up time µs RL = ∞ ; CL = 500 pF DC crosstalk (channel-to-channel) Capacitive load stability V 10 8 Slew rate AC crosstalk (channel-to-channel) VREFH RL = ∞; 0 pF < CL < 200 pF REFERENCE INPUT VREFH Input range VREFL Input range 0 VREFL