LTC1450 Linear Technology, LTC1450 Datasheet
LTC1450
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LTC1450 Summary of contents
Page 1
... The LTC1450 operates from a 4.5V to 5.5V supply. The output can be pin strapped for 4.095V or 2.048V full-scale. It has a 2.048V internal reference. The LTC1450L operates from a 2.7V to 5.5V supply. The output can be pin strapped for 2.5V or 1.22V full-scale. It has a 1.22V internal reference. The LTC1450/LTC1450L offer true stand-alone perfor- mance ...
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... PACKAGE 24-LEAD PLASTIC SSOP T JMAX T JMAX Consult factory for Military grade parts 4.5V to 5.5V (LTC1450), 2.7V to 5.5V (LTC1450L unless otherwise noted. MIN MAX CONDITIONS Guaranteed Monotonic (Note (Note Using Internal Reference, LTC1450, T ...
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... Digital Inputs V Digital Input High Voltage IH V Digital Input Low Voltage IL V Logic Threshold Voltage LTH I Digital Input Leakage LEAK C Digital Input Capacitance 4.5V to 5.5V (LTC1450), 2.7V to 5.5V (LTC1450L unless otherwise noted. A MIN MAX CONDITIONS V V – 1.5V REFHI CC For Specified Performance, LTC1450L LTC1450 4. ...
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... LTC1450/LTC1450L ELECTRICAL CHARACTERISTICS V = 4.5V to 5.5V (LTC1450 2.7V to 3.6V (LTC1450L SYMBOL PARAMETER Switching Characteristics (Note (MSB or LSB) Pulse Width Pulse Width Setup CWS Hold CWH t Data Valid to WR Setup DWS t Data Valid to WR Hold DWH t LDAC Pulse Width ...
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... REFHI P –50 OUT P-P –60 –70 –80 –90 –100 100 1k 10k 100k FREQUENCY (Hz) 1450/50L G11 LTC1450/LTC1450L LTC1450 Pull-Down Voltage vs Output Sink Current Capability 1000 125 C 100 – 0.1 0.0001 0.001 0.01 0 100 OUTPUT SINK CURRENT (mA) 1450/50L G06 LTC1450 Integral Nonlinearity (INL) ...
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... OUTPUT LOAD 5k//10pF 5 s/DIV 1450/50L G17 LTC1450 Large-Scale Settling (Falling) DATA INPUTS FALLING EDGE OUT NO LOAD 0V 2 s/DIV 1450/50L G15 LTC1450 Digital Feedthrough 4V 0V ALL DATA INPUTS TOGGLING V = 5mV/DIV OUT OUT(DC LOAD L 2 s/DIV 1450/50L G18 ...
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... REFOUT (Pin 19): Output of the internal 2.048V/1.22V reference. Typically connected to REFHI to drive internal DAC resistor string. V (Pin 20): Positive Power Supply Input. 4. 5.5V (LTC1450) and 2. Requires a bypass capacitor to ground. V (Pin 21): Buffered DAC Output. OUT X1/X2 (Pin 22): Gain Setting Resistor Pin. Connect to GND for for ...
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... LTC1450L: 1.22V 12-BIT DAC LATCH POWER-ON RESET UPPER 4-BIT LOWER 8-BIT INPUT LATCH INPUT LATCH D11 (MSB) D10 LDAC DAC UPDATE LTC1450/50L • TD01 – OUT + 16 GND (LSB LTC1450/50L • BD ...
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... AC coupling from the digital inputs when they change state. The area of the glitch is specified in (nV) s). OUTPUT VOLTAGE 0V NEGATIVE DAC CODE OFFSET Figure 1. Effect of Negative Offset LTC1450/LTC1450L – V – (V – V )(code/4095)]/LSB OUT the given input code – LSB)/LSB ...
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... CLR pin function). Reference The LTC1450 includes an internal 2.048V reference, giv- ing the LTC1450 a full-scale range of 4.095V in the gain of 2 configuration. The LTC1450L has an internal 1.22V reference with a full-scale range of 2.5V and a gain of 2.05 in the gain of 2 configuration. The onboard reference in the LTC1450 and LTC1450L is not internally connected to the DAC’ ...
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... TO 2.048V 4.5V TO 5.5V) 0 DATA (0:11) V REFOUT REFHI CC CSLSB CSMSB LTC1450 LTC1450L WR X1/X2 LDAC CLR GND REFLO LTC1450/LTC1450L RMS OUT 10 4.7 F REFHI V OUTPUT OUT X1/X2 REFLO LTC1450/50L • TA03 D IN LTC1450 • OUT IN 4096 V OUT D IN LTC1450L • 2.05 V OUT IN 4096 LTC1450/50L • TA04 11 ...
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... TO 2.047V (1mV/LSB) 4 – 5V 2.047V V OUT 2048 – 2.048V – 4096 IN 4.096 4096 OUT LTC1450/50L • TA05 R2 22.6k 15V 7 2.047mA 6 I OUT 2048 – 2.048mA 4 R5 1.13k R4 21.5k I OUT – 2.048mA TO 2.047mA (1 A/LSB) R2 REF (R1)(R5) LTC1450/50L • TA06 D IN 4095 D IN 4095 ...
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... This application shows the LTC1450L configured as a single supply 4-quadrant multiplying DAC. It uses a 5V supply and only one external component resistor tied from REFOUT to ground. (The LTC1450 can be used in a similar fashion.) The multiplying DAC allows the user to digitally change the amplitude and polarity input signal whose voltage is centered around an offset signal ground provided by the 1 ...
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... LTC1450/LTC1450L PACKAGE DESCRIPTION 0.205 – 0.212** (5.20 – 5.38) 0.005 – 0.009 0.022 – 0.037 (0.13 – 0.22) (0.55 – 0.95) * DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE ...
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... MIN MIN 0.100 0.010 (2.540 0.254) LTC1450/LTC1450L 1.265* (32.131 0.065 (1.651) TYP 0.018 0.003 (0 ...
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... LTC1450/LTC1450L RELATED PARTS PART NUMBER DESCRIPTION LTC1257 Complete Serial I/O V LTC1451/LTC1452/LTC1453 Complete Serial I/O V LTC1446/LTC1446L Dual 12-Bit V OUT LTC1454/LTC1454L Dual 12-Bit V OUT with Added Functionality LTC1458/LTC1458L Quad 12-Bit V OUT Packages LTC7541A Parallel I/O Multiplying 12-Bit DAC LTC7543/LTC8143 Serial Multiplying 12-Bit DACs LTC7545A Parallel Latched Input Multiplying 12-Bit DAC ...