LTC1451 Linear Technology Corporation, LTC1451 Datasheet
LTC1451
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LTC1451 Summary of contents
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... A Typ CC The LTC1451 has an onboard reference of 2.048V and a full-scale output of 4.095V. It operates from a single 4.5V to 5.5V supply. The LTC1452 is a multiplying DAC with a full-scale output of twice the reference input voltage. It operates from a single supply of 2 ...
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... Lead Temperature (Soldering, 10 sec)................. 300 ORDER PART NUMBER LTC1451CN8 LTC1452CN8 LTC1453CN8 LTC1451IN8 LTC1452IN8 LTC1453IN8 The denotes specifications which apply over the full operating = 4.5V to 5.5V (LTC1451), 2.7V to 5.5V (LTC1452/LTC1453 /2), V and REF unloaded, unless otherwise noted. OUT = LTC1451 ...
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... Digital Feedthrough AC Feedthrough REF = 1kHz, 2V SINAD Signal-to-Noise + Distortion REF = 1kHz, 2V The denotes specifications which apply over the full operating = 4.5V to 5.5V (LTC1451), 2.7V to 5.5V (LTC1452/LTC1453 /2), V and REF unloaded, unless otherwise noted. OUT 100 A, LTC1451 OUT LTC1453 V – 1.5V ...
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... LOAD 20 Note 3: Load parallel with 100pF. Note 4: DAC switched between all 1s and the code corresponding to V for the part, i.e., LTC1451: code 18; LTC1453: code 30. Note 5: Digital inputs LTC1453 Minimum Supply Voltage vs Load Current 4.50 V < 1LSB OUT 4.25 4 ...
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... CODE 1451/2/3 TA02 LTC1451 Broadband Output Noise 0.2LSB/DIV CODE = FFFH BW = 3Hz TO 1.4MHz 10k 100k GAIN = 1000 1451/2/3 G08 LTC1451 LTC1452/LTC1453 LTC1451 Pull-Down Voltage vs Output Sink Current Capability 1000 125 C 100 – 0.1 0.0001 0.001 ...
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... The Buffered DAC Output. OUT V : The Positive Supply Input. 4.5V CC (LTC1451), 2.7 quires a bypass capacitor to ground. LD 12-BIT 12-BIT DAC DAC SHIFT REGISTER REGISTER REFERENCE POWER-ON LTC1451: 2.048V RESET LTC1453: 1.22V B11 B10 MSB t 8 B11 B10 /2 may be used for the LTC1452. ...
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... AC coupling from the digital inputs when they change state. The area of the glitch is specified in nV sec. OUTPUT VOLTAGE 0V NEGATIVE DAC CODE OFFSET 1451/2/3 F01 Figure 1. Effect of Negative Offset LTC1451 LTC1452/LTC1453 = [V – V – (V – V )(code/4095)]/LSB OUT The output voltage of the DAC measured at ...
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... CS/LD signal is pulled high to update all of them simultaneously. 8 Reference The LTC1451 includes an internal 2.048V reference, mak- ing 1LSB equal to 1mV (gain of 2). The LTC1453 has an internal reference of 1.22V with a full scale of 2.5V (gain of 2.05). The internal reference output is turned off when the pin is forced above the reference voltage, allowing an external reference to be connected to the reference pin ...
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... Setup and hold times between D OUT guaranteed unless a clock edge with a rise time of less than 100ns is provided. LTC1451 LTC1452/LTC1453 V LOOP 3.3V TO 30V + 1k ...
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... This circuit shows a digitally programmable current source from an external voltage source using an external op amp, an LT1077 and an NPN transistor (2N3440). Any digital word from 0 to 4095 is loaded into the LTC1451 and its output correspondingly swings from 0V to 4.095V. In the configuration shown, this voltage will be forced across the ...
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... TYP 0.016 – 0.050 0.014 – 0.019 (0.406 – 1.270) (0.355 – 0.483) TYP LTC1451 LTC1452/LTC1453 0.400* (10.160) MAX 0.130 0.005 (3.302 0.127) 0.125 ...
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... U TYPICAL APPLICATION This circuit shows how to make a bipolar output 12-bit DAC with a wide output swing using an LTC1451 and an LT1077. R1 and R2 resistively divide down the LTC1451 output and an offset is summed in using the LTC1451 onboard 2.048V reference and R3 and R4. R5 ensures that CLK ...