DAC101C08XEB National Semiconductor, DAC101C08XEB Datasheet
DAC101C08XEB
Specifications of DAC101C08XEB
Related parts for DAC101C08XEB
DAC101C08XEB Summary of contents
Page 1
... For 12-bit DACs see the DAC121C081 and DAC121C085. For 8-bit DACs see the DAC081C081 and DAC081C085. Connection Diagrams 30052201 I2C® registered trademark of Phillips Corporation. © 2008 National Semiconductor Corporation Features ■ Guaranteed Monotonicity to 10-bits ■ Low Power Operation: 156 µA max @ 3.3V ■ ...
Page 2
... Ordering Information Order Code DAC101C081CIMK DAC101C081CIMKX DAC101C081CISD DAC101C081CISDX DAC101C085CIMM DAC101C085CIMMX DAC101C08XEB Block Diagram www.national.com Temperature Range ≤ ≤ −40°C T +125°C A ≤ ≤ TSOT Tape-and-Reel −40°C T +125°C A ≤ ≤ −40°C T +125°C A ≤ ≤ LLP Tape-and-Reel −40°C T +125° ...
Page 3
Pin Descriptions Symbol Type V Analog Output OUT V Supply A GND Ground Digital SDA Input/Output SCL Digital Input Digital Input, ADR0 three levels Digital Input, ADR1 three levels V Supply REF PAD Ground (LLP only) Package Pinouts V V ...
Page 4
... Absolute Maximum Ratings (Notes Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Voltage on any Input Pin Input Current at Any Pin (Note 3) Package Input Current (Note 3) Power Consumption 25°C A ESD Susceptibility (Note 5) ...
Page 5
Symbol Parameter Output Short Circuit Current SINK Continuous Output I O Current (Note 10) C Maximum Load Capacitance Output Impedance OUT REFERENCE INPUT CHARACTERISTICS- (DAC101C085 only) Input Range Minimum V Input Range Maximum ...
Page 6
Symbol Parameter POWER REQUIREMENTS Supply Voltage Minimum V A Supply Voltage Maximum Normal -- V set to midscale. 2-wire interface quiet (SCL = SDA = V OUT I V DAC101C081 Supply Current ST_VA DAC101C085 Supply Current ST_VA-5 ...
Page 7
A.C. and Timing Characteristics Values shown in this table are design targets and are subject to change before product release. The following specifications apply for V ≤ ≤ and all other limits are at T for MIN ...
Page 8
Symbol Parameter t Rise time of SDA signal rDA t Fall time of SDA signal fDA t Rise time of SCL signal rCL Rise time of SCL signal after a t repeated start condition and after an rCL1 acknowledge bit. ...
Page 9
Note 6: Reflow temperature profiles are different for lead-free packages. Note 7: The inputs are protected as shown below. Input voltage magnitudes up to 5.5V, regardless of V example 3V, the digital input pins can be driven ...
Page 10
Transfer Characteristic Timing Diagrams www.national.com FIGURE 1. Input / Output Transfer Characteristic FIGURE 2. Serial Timing Diagram 10 30052205 30052260 ...
Page 11
Typical Performance Characteristics 1011, unless otherwise stated. INL INL/DNL vs Temperature at V INL/DNL REFIN REF A SCL 30052220 = 3.0V INL/DNL vs Temperature 30052222 = 3.0V A ...
Page 12
INL/DNL vs V Zero Code Error vs. Temperature Full Scale Error vs. Temperature www.national.com A 30052226 30052228 30052229 12 Zero Code Error vs 30052227 Full Scale Error vs 30052236 Total Supply Current vs 30052230 ...
Page 13
V Supply Current vs. V REF Total Supply Current vs. Temperature @ V Power-On Reset Total Supply Current vs. Temperature @ V A 30052231 = 5V A 30052233 30052235 30052232 5V Glitch Response 30052234 www.national.com ...
Page 14
Functional Description 1.1 DAC SECTION The DAC101C081 is fabricated on a CMOS process with an architecture that consists of switches and resistor strings that are followed by an output buffer. For simplicity, a single resistor string is shown in ...
Page 15
SERIAL INTERFACE The I 2 C-compatible interface operates in all three speed modes. Standard mode (100kHz) and Fast mode (400kHz) are functionally the same and will be referred to as Standard- Fast mode in this document. High-Speed mode (3.4MHz) ...
Page 16
High-Speed (Hs) Mode For Hs-mode, the sequence of events to begin communica- tion differ slightly from Standard-Fast mode. Figure 5 de- scribes this in further detail. Initially, the bus begins running in Standard-Fast mode. The master generates a Start ...
Page 17
Writing to the DAC Register To write to the DAC, the master addresses the part with the correct slave address (A6-A0) and writes a "zero" to the read/write bit. If addressed correctly, the DAC returns an ACK to the ...
Page 18
DAC REGISTER The DAC register, Figure 8, has sixteen bits. The first two bits are always zero. The next two bits determine the mode of operation (normal mode or one of three power-down modes). The final twelve bits of ...
Page 19
Applications Information 2.1 USING REFERENCES AS POWER SUPPLIES While the simplicity of the DAC101C081 implies ease of use important to recognize that the path from the reference input (V for the DAC101C081 & V for the DAC101C085) ...
Page 20
LP3985 The LP3985 is a low noise, ultra low dropout voltage regulator with a 3% accuracy over temperature good choice for applications that do not require a precision reference for the DAC101C081. It comes in 3.0V, ...
Page 21
DSP/MICROPROCESSOR INTERFACING Interfacing the DAC101C081 to microprocessors and DSPs is quite simple. The following guidelines are offered to simplify the design process. 2.3.1 Interfacing to the 2-wire Bus Figure 15 shows a microcontroller interfacing to the DAC101C081 via the ...
Page 22
Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 6-Lead TSOT Order Numbers DAC101C081CIMK NS Package Number MK06A 6-Lead LLP Order Numbers DAC101C081CISD NS Package Number SDB06A 22 ...
Page 23
MSOP Order Numbers DAC101C085CIMM NS Package Number MUA08A 23 www.national.com ...
Page 24
... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock Conditioners www.national.com/timing Data Converters www.national.com/adc Displays www.national.com/displays Ethernet www.national.com/ethernet Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www ...