LTC1448 Linear Technology, LTC1448 Datasheet
LTC1448
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LTC1448 Summary of contents
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... It is available in 8-pin SO and PDIP packages and CC provides the smallest footprint of any dual 12-bit DAC. The LTC1448 has an external reference input pin (REF) and its outputs swing from 0V to REF. The REF input can be tied 2.7V to 5.5V. (For devices with internal reference see the LTC1446 data sheet ...
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... V , REF to GND ........... – 0. OUT A OUT B Maximum Junction Temperature .......................... 125°C Operating Temperature Range LTC1448C ............................................ 0°C to 70°C LTC1448I......................................... – 40°C to 85°C Storage Temperature Range ................ – 65°C to 150°C Lead Temperature (Soldering, 10 sec)................. 300°C ELECTRICAL CHARACTERISTICS V = 2.7V to 5.5V, V and V ...
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... unless otherwise noted MIN MAX = GND Note 4: Digital inputs Note 5: V OUT output is unloaded. Note 6. Guaranteed by design, not subject to test. OS LTC1448 MIN TYP MAX 0.5 1.0 14 0.3 7.5 12 2.4 2.0 0.8 0.6 ± ...
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... LTC1448 W U TYPICAL PERFORMANCE CHARACTERISTICS Integral Nonlinearity (INL –1 –2 –3 –4 –5 0 2048 2560 3072 3584 4095 512 1024 1536 CODE 1448 G01 Minimum Output Voltage vs Output Sink Current 800 CODE: ALL 0’s 700 600 500 400 ...
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... REGISTER LD DAC A 12-BIT REGISTER DAC A LSB MSB D11 D10 B0-A MSB LSB LTC1448 + V 8 OUT B – GND OUT A – 1448 BD DAC B INPUT LSB ...
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... CS/LD is high. Note: CLK must be low before CS/LD is pulled low to avoid an extra internal clock pulse. Voltage Output The LTC1448’s rail-to-rail buffered outputs can source or sink 5mA over the entire operating temperature range 6 than zero. The INL error at a given input code is calculated ...
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... V REF Offset and linearity are defined and tested over the region of the DAC transfer function where no output limiting can occur REF CC OUTPUT VOLTAGE 0 2048 INPUT CODE (a) LTC1448 – FSE REF CC INPUT CODE (c) 4095 = V REF POSITIVE FSE OUTPUT ...
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... LTC1448 U TYPICAL APPLICATIONS This circuit shows how to use one LTC1448 to make an autoranging ADC. The microprocessor sets the reference span and the Common pin for the analog input by loading the appropriate digital code into the LTC1448. V controls the Common pin for the analog inputs to the ...
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... D IN CS/ PIN NOT SHOWN FOR CLARITY OUT Digitally Programmable Current Source 100V S FOR 0 REF LTC1448 OUT A Q1 LT1077 2N3440 GND – 510 5% LTC1448 D • 0mA TO 10mA OUT 4096 • 1448 TA05 9 ...
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... LTC1448 PACKAGE DESCRIPTION 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 +0.889 8.255 –0.381 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm Dimensions in inches (millimeters) unless otherwise noted. ...
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... TYP 0.016 – 0.050 0.014 – 0.019 0.406 – 1.270 (0.355 – 0.483) LTC1448 0.189 – 0.197* (4.801 – 5.004 0.150 – 0.157** (3.810 – 3.988 0.004 – ...
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... McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 TELEX: 499-3977 www.linear-tech.com 12-Bit Supply, Dual Voltage Output DAC 2.7V TO 5.5V V REF CLK OUTPUT OUT REF CS/LD LTC1448 OUTPUT B V OUT REF GND : 4.75V to 15.75V 12V MAX : 4.5V to 5.5V, CC Multiplying DAC 2.7V to 5.5V OUT CC DAC, Full Scale: 2 ...