LTC1654 LINER [Linear Technology], LTC1654 Datasheet
LTC1654
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LTC1654 Summary of contents
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... It is available in a 16-lead narrow SSOP package, making it the smallest dual 14-bit DAC available. It includes output buffer amplifiers and a flexible serial interface. The LTC1654 has REFHI pins for each DAC that can be driven gain of 1 configuration or V tion. It operates from a single 2.7V to 5.5V supply. ...
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... V , SDO .................................. – 0. OUT Operating Temperature Range LTC1654C ............................................. LTC1654I ........................................ – Maximum Junction Temperature .......................... 125 C Storage Temperature Range ................ – 150 C Lead Temperature (Soldering, 10 sec)................. 300 C ELECTRICAL CHARACTERISTICS ture range, otherwise specifications are 5V), REFHI A, REFHI B = 2.048V (V ...
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... REFHI to REFLO (Notes Shutdown (Note 6) (Note 6) (Note 6) (Note 6) (Note 6) (Note 100pF LOAD (Note 6) (Note 6) (Note 6) (Note 6) (Note 6) (Note 6) (Note 100pF LOAD (Note 6) LTC1654 unloaded, REFHI A, REFHI B = 4.096V OUT B MIN TYP MAX 0.20 1.25 8.0 3 540 320 2.4 0.8 V – 0.75 CC 0.4 2.4 0.8 V – 0. ...
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... The Buffered DAC Outputs. OUT A/B REFHI A/B (Pins 10, 14): The Reference High Inputs of the LTC1654. There is a gain of 1 from this pin to the output in a gain of 1 configuration gain of 1/2 configuration, there is a gain of 1/2 from this pin to V REFLO A/B (Pins 11, 13): The Reference Low Inputs of the LTC1654 ...
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... DIAGRA S LTC1654 5 ...
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... The LTC1654 comes complete with rail-to-rail voltage output buffer amplifiers. These amplifiers will swing to within a few millivolts of either supply rail when unloaded and to within a 300mV of either supply rail when sinking or sourcing 5mA. There are two GAIN configuration modes for the LTC1654: a) GAIN tied to REFLO) 1 ...
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... Reserved (Do Not Use Reserved (Do Not Use Reserved (Do Not Use Reserved (Do Not Use Both DACs DATA ( DUMMY LSBs LTC1654 /X is tied to 1 1/2 will OUT REFLO is unloaded. OUT X X 1654 TABLE 7 ...
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... LTC1654 U U APPLICATIONS INFORMATION Rail-to-Rail Output Considerations In any rail-to-rail DAC, the output swing is limited to voltages within the supply range. If the DAC offset is negative, the output for the lowest codes limits shown in Figure 2b. Similarly, limiting can occur near full scale when the REF pin is tied to V ...
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... Nominal LSBs: LTC1654 LSB = 4.09575V/16383 = 250 V Zero-Scale Error (ZSE): The output voltage when the DAC is loaded with all zeros. Since this is a single supply part, this value cannot be less than 0V. Integral Nonlinearity (INL): End-point INL is the maxi- mum deviation from a straight line passing through the end points of the DAC transfer curve ...
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... LTC1654 U TYPICAL APPLICATION P 10 Dual 14-Bit Voltage Output DAC 2.7V TO 5.5V 0.1 F LTC1654 1 OUTPUT CLR V OUT SCK REFHI SDI REFLO CS/LD AGND 6 11 DGND REFLO SDO REFHI OUTPUT ...
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... TYP 0.008 – 0.012 (0.203 – 0.305) LTC1654 0.189 – 0.196* (4.801 – 4.978) 0.009 (0.229 REF 0.150 – 0.157** (3.810 – 3.988) ...
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... LTC1654 RELATED PARTS PART NUMBER DESCRIPTION LTC1257 Single 12-Bit V DAC, Full Scale: 2.048V, V OUT Reference Can Be Overdriven Up to 12V, i.e., FS LTC1446/LTC1446L Dual 12-Bit V DACs in SO-8 Package OUT LTC1448 Dual 12-Bit V DAC, V OUT LTC1450/LTC1450L Single 12-Bit V DACs with Parallel Interface OUT LTC1451 Single Rail-to-Rail 12-Bit DAC, Full Scale: 4.095V, V Internal 2 ...