LTC2614 Linear Technology Corporation, LTC2614 Datasheet
LTC2614
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LTC2614 Summary of contents
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... The power-on reset circuit resets the LTC2604-1/LTC2614-1 /LTC2624-1 to midscale. The voltage outputs stay at midscale until a valid write and update take place. ...
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... Any Pin to GND ........................................... – 0. Any Pin to V ............................................ –6V to 0.3V CC Maximum Junction Temperature...........................125°C Operating Temperature Range LTC2604C/LTC2614C/LTC2624C ............. 0°C to 70°C LTC2604C-1/LTC2614C-1/ LTC2624C-1 ............................................ 0°C to 70°C LTC2604I/LTC2614I/LTC2624I ............ –40°C to 85°C LTC2604I-1/LTC2614I-1/ LTC2624I-1 ......................................... –40°C to 85°C Storage Temperature Range .................. –65°C to 150°C Lead Temperature (Soldering, 10 sec) ................. 300° ...
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... (Note 3) CC All DACs Powered Down (Note All DACs Powered Down (Note 2. 2. 4. 2.5V to 5.5V CC Load Current = –100μA = 5V), REF A = REF LTC2614/LTC2614-1 LTC2604/LTC2604-1 MIN TYP MAX MIN TYP MAX 0.1 0.5 0.3 0.1 0.5 0.3 0.2 1 0.7 0.2 1 0.7 9 1.5 9 1.5 ±1.5 ± ...
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... REF A = REF B = REF C = REF D = 4.096V (V unloaded, unless otherwise noted. (Note 10) CONDITIONS C = 10pF LOAD V = 4. 2. 5V), REF A = REF MIN TYP MAX ● 0.4 ● ±1 ● LTC2614/LTC2614-1 LTC2604/LTC2604-1 MAX MIN TYP MAX MIN TYP 2.7 2.7 4.8 4.8 5.2 0.80 0.80 1000 1000 12 ...
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... L REF 3/4 scale to 1/4 scale. Load parallel with 200pF to GND. Note 5V and half scale –1. Load parallel with 200pF to GND. Note 10: These specifi cations apply to LTC2604/LTC2604-1, LTC2614/ = 4.096V, with REF LTC2614-1, LTC2624/LTC2624-1. Load Regulation 1.0 CODE = MIDSCALE 0.8 0.6 0.4 ...
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... LTC2604/LTC2614/LTC2624 TYPICAL PERFORMANCE CHARATERISTICS (LTC2604/LTC2604-1, LTC2614/LTC2614-1, LTC2624/LTC2624-1) Gain Error 0.4 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 2.5 3 3 (V) CC 2604 G07 Midscale Glitch Impulse V OUT 10mV/DIV 12nV-s TYP CS/LD 5V/DIV 2604 G10 2.5μs/DIV Headroom at Rails vs Output Current 5.0 5V SOURCING 4.5 4.0 3.5 3V SOURCING 3.0 2.5 2.0 1.5 5V SINKING 1.0 3V SINKING 0 ...
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... TYPICAL PERFORMANCE CHARATERISTICS (LTC2604/LTC2604-1, LTC2614/LTC2614-1, LTC2624/LTC2624-1) Hardware CLR V OUT 1V/DIV CLR 5V/DIV 2604 G15 1μs/DIV Output Voltage Noise, 0.1Hz to 10Hz V OUT 10μV/DIV SECONDS 2604 G17 (LTC2604/LTC2604-1) Integral Nonlinearity (INL 4.096V REF 24 16 ...
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... TEMPERATURE (°C) 2604 G23 Settling to ±1LSB V OUT 100μV/DIV CS/LD 2V/DIV 2μs/DIV 4.096V CC REF 1/4-SCALE TO 3/4-SCALE STEP 200pF L L AVERAGE OF 2048 EVENTS (LTC2614/LTC2614-1) Integral Nonlinearity (INL 4.096V REF –2 –4 –6 –8 0 4096 8192 12288 ...
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... CLR (Pin 11): Asynchronous Clear Input. A logic low at this level-triggered input clears all registers and causes the DAC voltage outputs to drop to 0V for the LTC2604/ LTC2614/LTC2624. A logic low at this input sets all registers to midscale code and causes the DAC voltage outputs midscale for the LTC2604-1/LTC2614-1/LTC2624-1. ...
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... Figure 1 outputs from the DAC during this time. The LTC2604/ LTC2614/LTC2624 contain circuitry to reduce the power- on glitch; furthermore, the glitch amplitude can be made arbitrarily small by reducing the ramp rate of the power supply. For example, if the power supply is ramped 1ms, the analog outputs rise less than 10mV above ground (typ) during power-on ...
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... LTC2614 and LTC2624 respectively). Data can only be transferred to the device when the CS/LD signal is low. The rising edge of CS/LD ends the data transfer and causes the device to carry out the action specifi the 24-bit input word ...
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... LTC2604/LTC2614/LTC2624 OPERATION operation copies the data word from the input register to the DAC register. Once copied into the DAC register, the data word becomes the active 16-, 14- or 12-bit input code, and is converted to an analog voltage at the DAC output. The update operation also powers up the selected DAC if it had been in power-down mode ...
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... OPERATION LTC2604/LTC2614/LTC2624 2604fc 13 ...
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... LTC2604/LTC2614/LTC2624 OPERATION DC output impedance is equivalent to load regulation, and may be derived from it by simply calculating a change in units from LSB/mA to Ohms. The amplifi ers’ DC output impedance is 0.025Ω when driving a load well away from the rails. When drawing a load current from either rail, the output voltage headroom with respect to that rail is limited by the 30Ω ...
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... Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTC2604/LTC2614/LTC2624 GN Package 16-Lead Plastic SSOP (Narrow .150 Inch) (Reference LTC DWG # 05-08-1641) .045 ± ...
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... LTC2604/LTC2614/LTC2624 TYPICAL APPLICATION 70MHz IN OPTIONAL 5V 2.74k 100k 1% 2.74k 1% Q INPUT 5V 2.74k 1% 2.74k 1% Figure 4. Using DAC A and DAC B for Nearly Continuous Attenuation Control and DAC C and DAC D to Trim for Minimum LO Feedthrough in a Mixer RELATED PARTS PART NUMBER DESCRIPTION LTC1458/LTC1458L Quad 12-Bit Rail-to-Rail Output DACs with Added Functionality ...