LTC1454 Linear Technology, LTC1454 Datasheet
LTC1454
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LTC1454 Summary of contents
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... SO package. They include an output buffer amplifier with variable gain ( and an easy-to-use 3-wire cascadable serial interface. The LTC1454 has an onboard reference of 2.048V and a full-scale output of 4.095V gain configuration. It operates from a single 4.5V to 5.5V supply. The LTC1454L has an onboard 1.22V reference and a full- scale output of 2 ...
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... Maximum Junction Temperature .......................... 125 C Operating Temperature Range LTC1454C/LTC1454LC ............................ LTC1454I/LTC1454LI ........................ – Storage Temperature Range ................ – 150 C Lead Temperature (Soldering, 10 sec)................. 300 C ELECTRICAL CHARACTERISTICS V = 4.5V to 5.5V (LTC1454), 2.7V to 5.5V (LTC1454L), X1/X2 = REFLO = GND, REFHI = REFOUT unless otherwise noted. A MIN ...
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... ELECTRICAL CHARACTERISTICS V = 4.5V to 5.5V (LTC1454), 2.7V to 5.5V (LTC1454L), X1/X2 = REFLO = GND, REFHI = REFOUT unless otherwise noted. A MIN MAX SYMBOL PARAMETER CONDITIONS Power Supply V Positive Supply Voltage For Specified Performance, LTC1454 CC I Supply Current 4. 2. Amp DC Performance Short-Circuit Current Low V Short-Circuit Current High ...
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... X1/X2 = GND 125 800 700 600 –55 C 500 400 300 200 100 0 OUTPUT SINK CURRENT (mA) 1454 G04 LTC1454 Full-Scale Voltage vs Temperature 4.110 4.105 4.100 4.095 4.090 4.085 4.080 –55 – TEMPERATURE ( C) 1454 G02 4 LTC1454 Integral Nonlinearity 2.0 1 ...
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... V (Pins 8, 16): The Buffered DAC Outputs. OUT A, OUT B V (Pins 9, 15): The Positive Supply Input. 4.5 CC 5.5V (LTC1454), 2.7V quires a bypass capacitor to ground. REFOUT (Pin 10): The Output of the Internal Reference. pin is IN REFHI A , REFHI B (Pins 11,14): The Inputs to the DAC Resistor Ladder for DAC A/B. REFLO (Pin 12): The Bottom of the DAC Resistor Ladder for Both DACs ...
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... B11 B LSB MSB t 8 B10 B11 B PREVIOUS WORD PREVIOUS WORD – REFERENCE – LTC1454: 2.048V 10 LTC1454L: 1.22V LSB B11 A PREVIOUS WORD CURRENT WORD V OUT REFHI B GND REFLO REFHI A REFOUT 9 V ...
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... The output voltage of the DAC measured at OUT the given input code Differential Nonlinearity (DNL): DNL is the difference between the measured change and the ideal 1LSB change LTC1454/5 • F01 between any two adjacent codes. The DNL error between any two codes is calculated as follows: DNL = ( V ...
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... CS/LD signal is pulled high to update all of them simultaneously. 8 Reference The LTC1454L has an internal reference of 1.22V with a full scale of 2.5V (gain of 2 configuration). The LTC1454 includes an internal 2.048V reference, making 1LSB equal to 1mV (gain of 2 configuration). When the buffer gain is 2, the external reference must be less than V capable of driving the 15k minimum DAC resistor ladder ...
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... U U APPLICATIONS INFORMATION A Single Supply, 4-Quadrant Multiplying DAC The LTC1454 can also be used for 4-quadrant multiplying with an offset signal ground of 1.22V. This application is shown in Figure 2. The inputs are connected to REFHI B or REFHI A and have a 1.22V amplitude around a signal CLK D IN CS/LD V OUT A ...
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... LTC1454/LTC1454L PACKAGE DESCRIPTION 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.025 0.325 –0.015 +0.635 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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... Plastic Small Outline (Narrow 0.150) (LTC DWG # 05-08-1610 0.228 – 0.244 (5.791 – 6.197 0.053 – 0.069 (1.346 – 1.752) 0.014 – 0.019 (0.355 – 0.483) LTC1454/LTC1454L 0.386 – 0.394* (9.804 – 10.008 0.150 – 0.157** (3.810 – 3.988 0.004 – ...
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... X1/X2 A REFOUT LTC1454L: 1.22V V V OUT 4.75V to 15.75V 12V MAX : 4.5V to 5.5V CC Multiplying DAC, OUT : 2. 4.5V to 5.5V LTC1454: 4.5V TO 5.5V LTC1454L: 2.7V TO 5.5V 0.1 F 1454 TA01 COMMENTS 5V to 15V Single Supply, Complete V DAC in OUT SO-8 Package LTC1446 4.5V to 5.5V 4.095V CC OUT LTC1446L 2.7V to 5.5V 2.5V CC OUT LTC1450 4.5V to 5.5V ...