LTC1091AC Linear Technology, LTC1091AC Datasheet
LTC1091AC
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LTC1091AC Summary of contents
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... The lower grade has a full-scale specification of 2LSB for applications where full scale is adjustable or less critical. , LTC and LT are registered trademarks of Linear Technology Corporation. 4.7 F MPU (e.g., 8051) P1.4 P1.3 P1 ...
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... Power Dissipation ............................................. 500mW Operating Temperature Range LTC1091/2/3/4AC, LTC1091/2/3/4C..... – Storage Temperature Range ................ – 150 C + 0.3V) Lead Temperature (Soldering, 10 sec.)................ 300 0.3V ORDER PART NUMBER CS 1 +IN 2 LTC1091ACN8 LTC1091CN8 –IN 3 GND 4 T JMAX LTC1093ACN CH0 1 LTC1093CN CH1 2 LTC1093CSW CH2 3 ...
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RECO E DED OPERATI G CO DITIO S SYMBOL PARAMETER V Supply Voltage CC – V Negative Supply Voltage f Clock Frequency CLK t Total Cycle Time CYC t Hold Time, D Alter SCLK hDI IN t ...
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LTC1091/LTC1092 LTC1093/LTC1094 AC CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are T SYMBOL PARAMETER t Analog Input Sample Time SMPL t Conversion Time CONV t Delay Time, CLK to D Data Valid dDO ...
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W U TYPICAL PERFOR A Change in Offset Error vs Temperature 0 REF f = 500kHz CLK 0.5 0.4 0.3 0.2 0.1 0 –50 – 100 125 AMBIENT TEMPERATURE ( ...
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LTC1091/LTC1092 LTC1093/LTC1094 W U TYPICAL PERFOR A LTC1091/LTC1092/LTC1093/LTC1094 Maximum Clock Rate vs Source Resistance 1. 1.00 0.75 0.50 R SOURCE “+” OR “–” INPUT 100 1k ...
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W U TYPICAL PERFOR A LTC1092/LTC1093/LTC1094 Unadjusted Offset Error vs Reference Voltage 1mV 0.5mV OS 0 0.1 0 REFERENCE ...
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LTC1091/LTC1092 LTC1093/LTC1094 W U TYPICAL PERFOR A LTC1092/LTC1093/LTC1094 Reference Current vs Temperature 0.6 0.5 0.4 0.3 0.2 0.1 0 –50 – AMBIENT TEMPERATURE ( CTIO S LTC1091/LTC1092 CS (Pin 1): Chip ...
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CTIO S V (Pin 11)(LTC1093): Reference Input. The reference REF input must be kept free of noise with respect to AGND. + – REF , REF (Pins 13, 14 )(LTC1094): Reference Input. The reference input ...
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LTC1091/LTC1092 LTC1093/LTC1094 TEST CIRCUITS On- and Off-Channel Leakage Current OFF A POLARITY Voltage Waveforms for D Delay Time, t OUT CLK 0.8V t dDO D OUT Load Circuit for t dis TEST POINT 3k D ...
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TEST CIRCUITS CS CLK D OUT LTC1093/LTC1094 CS D START IN 1 CLK D OUT PPLICATI S I FOR ATIO A The LTC1091/LTC1092/LTC1093/LTC1094 are data acquisiton components that contain the following func- tional blocks: 1. 10-Bit Successive ...
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LTC1091/LTC1092 LTC1093/LTC1094 PPLICATI FOR ATIO OUT SHIFT MUX ADDRESS IN 1 NULL BIT SHIFT A/D CONVERSION RESULT OUT the first CLK pulse enables D . After one null ...
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PPLICATI S I FOR ATIO A CS CLK Hi-Z D OUT B9 t SMPL t CONV Example: Differential Inputs (CH4 MSB-First Data (MSBF = 1) CS CLK SEL1 START UNI D IN MSBF SGL/ ODD/ SEL0 Hi-Z ...
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LTC1091/LTC1092 LTC1093/LTC1094 PPLICATI S I FOR ATIO Start Bit The first “logical one” clocked into the D goes low is the start bit. The start bit initiates the data transfer. The LTC1091/LTC1093/LTC1094 will ignore all leading ...
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PPLICATI S I FOR ATIO MSB-First/LSB-First (MSBF) The output data of the LTC1091/LTC1093/LTC1094 is programmed for MSB-first or LSB-first sequence using the MSBF bit. When the MSBF bit is a logical one, data will appear on ...
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LTC1091/LTC1092 LTC1093/LTC1094 PPLICATI FOR ATIO 3. Accommodating Microprocessors with Different Word Lengths The LTC1091/LTC1093/LTC1094 will fill zeros indefinitely after the transmitted data until CS is brought high. At that time the D line is ...
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PPLICATI S I FOR ATIO CS CLK DATA ( OUT START DATA LINE AND SENDS MUX ADDRESS TO LTC1091 Figure 2. LTC1091 Operation with D 5. Microprocessor Interfaces The LTC1091/LTC1092/LTC1093/LTC1094 can interface directly ...
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LTC1091/LTC1092 LTC1093/LTC1094 PPLICATI S I FOR ATIO Motorola SPI (MC68HC05C4, MC68HC11) The MC68HC05C4 has been chosen as an example of an MPU with a dedicated serial port. This MPU transfers data MSB first and in 8-bit ...
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PPLICATI FOR ATIO Interfacing to the Parallel Port of the Intel 8051 Family The Intel 8051 has been chosen to demonstrate the interface between the LTC1091 and parallel port micro- processors. Normally, the CS, ...
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LTC1091/LTC1092 LTC1093/LTC1094 PPLICATI S I FOR ATIO 2 OUTPUT PORT Figure 3. Several LTC1094s Sharing One 3-Wire Serial Interface Sharing the Serial Interface The LTC1094 can share the same 2- or 3-wire serial interface with other ...
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PPLICATI S I FOR ATIO 3. Analog Inputs Because of the capacitive redistribution A/D conversion techniques used, the analog inputs of the LTC1091/ LTC1092/LTC1093/LTC1094 have capacitive switching input current spikes. These current spikes settle quickly and ...
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LTC1091/LTC1092 LTC1093/LTC1094 PPLICATI S I FOR ATIO “–” Input Settling At the end of the sample phase the input capacitor switches to the “–” input and the conversion starts (see Figure 8). During the conversion, the ...
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PPLICATI S I FOR ATIO A 5mV/DIV 1 s/DIV Figure 9. Adequate Settling of Op Amp Driving Analog Input 5mV/DIV 20 s/DIV Figure 10. Poor Op Amp Settling Can Cause A/D Errors RC Input Filtering It is ...
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LTC1091/LTC1092 LTC1093/LTC1094 PPLICATI FOR ATIO Differential Inputs With differential inputs, the A/D no longer converts just a single voltage but rather the difference between two volt- ages. In this case, the voltage on the ...
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PPLICATI S I FOR ATIO 0.5mV/DIV 1 s/DIV Figure 14. Poor Reference Settling Can Cause A/D Errors 6. Reduced Reference Operation The minimum reference voltage of the LTC1091 is limited to 4.5V because the V supply ...
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LTC1091/LTC1092 LTC1093/LTC1094 O U TYPICAL A PPLICATI 500 C Furnace Exhaust Gas Temperature Monitor with Low Supply Detection – LT1025A J TYPE GND COMMON 0 0.1% ...
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O U TYPICAL A PPLICATI –40 C 5000 226 100 C 0.25 C Accurate Thermistor Based Temperature Measurement System 2N3904 10k 15k 10% 10% LTC1094 YSI 44201 CH0 DV ...
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LTC1091/LTC1092 LTC1093/LTC1094 PACKAGE DESCRIPTIO 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 +0.889 8.255 –0.381 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH ...
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PACKAGE DESCRIPTIO 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 +0.889 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) U ...
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LTC1091/LTC1092 LTC1093/LTC1094 PACKAGE DESCRIPTIO 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 +0.889 8.255 –0.381 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH ...
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... DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 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 represen- tation that the interconnection of circuits as described herein will not infringe on existing patent rights. ...
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... BARRIER NC COMMENTS Serial I/O, 1.5mA Supply Current Pin Compatible Upgrades to LTC1091/LTC1092 Pin Compatible Upgrades to LTC1093/LTC1094 5V 10k 2N3906 C1 150 5V 10k SCK 150 5V 10k C0 150 TO 68HC05** 5V 10k MOSI 150 5.1k 51k MISO 5V LT1091-4 TA06 1091fa LT/TP 1099 2K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1988 ...