LTC2402CMS Linear Technology, LTC2402CMS Datasheet
LTC2402CMS
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LTC2402CMS Summary of contents
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... The LTC2401/LTC2402 communicate through 3-wire digital interface that is compatible with SPI and MICROWIRE , LTC and LT are registered trademarks of Linear Technology Corporation. No Latency is a trademark of Linear Technology Corporation. MICROWIRE is a trademark of National Semiconductor Corporation. V ...
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... SET = 2.5V SET = 5V SET = 2.5V 0V SET IN = 2.5V 0V 0V, (Notes 7, 15) SET IN = 2.5V 0V 0V, (Notes 8, 15) SET IN ORDER PART NUMBER TOP VIEW LTC2402CMS SCK LTC2402IMS 8 SDO GND MS10 PART MARKING MS10 PACKAGE LTMD = 125 C, = 130 C/W JA LTME . (Notes 3, 4) SET MIN TYP ...
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ALOG I PUT A D REFERE CE temperature range, otherwise specifications are at T SYMBOL PARAMETER V Input Voltage Range IN FS Full-Scale Set Range SET ZS Zero-Scale Set Range SET C Input Sampling Capacitance S(IN) ...
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LTC2401/LTC2402 CHARACTERISTICS range, otherwise specifications are at T SYMBOL PARAMETER f External Oscillator Frequency Range EOSC t External Oscillator High Period HEO t External Oscillator Low Period LEO t Conversion Time CONV f Internal SCK ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Total Unadjusted Error (3V Supply 2.5V REF –55 C, – –5 125 C –10 0 0.5 ...
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LTC2401/LTC2402 W U TYPICAL PERFOR A CE CHARACTERISTICS RMS Noise vs Reference Voltage REFERENCE VOLTAGE ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Conversion Current vs Temperature 230 220 V = 5.5V CC 210 200 V = 4.1V CC 190 180 V = 2.7V CC 170 160 150 – 55 –30 – ...
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LTC2401/LTC2402 W U TYPICAL PERFOR A CE CHARACTERISTICS INL vs Output Rate REF F = EXTERNAL ...
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PIN FUNCTIONS SCK (Pin 9): Bidirectional Digital Clock Pin. In the Internal Serial Clock Operation mode, SCK is used as digital output for the internal serial interface clock during the data output period. In the External Serial ...
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LTC2401/LTC2402 U U APPLICATIO S I FOR ATIO Converter Operation Cycle The LTC2401/LTC2402 are low power, delta-sigma ana- log-to-digital converters with an easy to use 3-wire serial interface. Their operation is simple and made up of three states. The converter ...
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U U APPLICATIO S I FOR ATIO integrity of the conversion result and of the serial interface mode selection which is performed at the initial power-up. (See the 2-wire I/O sections in the Serial Interface Timing Modes section.) When the ...
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LTC2401/LTC2402 U U APPLICATIO S I FOR ATIO Bit 29 (third output bit) is the conversion result sign indi- cator (SIG >0, this bit is HIGH bit is LOW. The sign bit changes state ...
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U U APPLICATIO S I FOR ATIO Table 2. LTC2401/LTC2402 Output Data Format Bit 31 Bit 30 Input Voltage EOC CH SELECT V > 9/8 • CH0/CH1 IN REF 9/8 • CH0/CH1 REF V + 1LSB ...
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LTC2401/LTC2402 U U APPLICATIO S I FOR ATIO external serial clock. If the change occurs during the conversion state, the result of the conversion in progress may be outside specifications but the following conver- sions will not be affected. If ...
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U U APPLICATIO S I FOR ATIO In addition, the CS signal can be used to trigger a new conversion cycle before the entire serial data transfer has been completed. The LTC2401/LTC2402 will abort any serial data transfer in progress ...
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LTC2401/LTC2402 U U APPLICATIO S I FOR ATIO CS TEST EOC TEST EOC SDO Hi-Z Hi-Z SCK (EXTERNAL) CONVERSION SLEEP CS TEST EOC BIT 0 SDO EOC Hi-Z SCK (EXTERNAL) SLEEP CONVERSION DATA OUTPUT Figure 6. External Serial Clock, Reduced ...
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U U APPLICATIO S I FOR ATIO of CS, the device aborts the data output state and imme- diately initiates a new conversion. This is useful for systems not requiring all 32 bits of output data, aborting an invalid conversion ...
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LTC2401/LTC2402 U U APPLICATIO S I FOR ATIO <t EOCtest CS TEST EOC BIT 31 SDO EOC Hi-Z Hi-Z SCK (INTERNAL) CONVERSION SLEEP The serial data output pin (SDO) is Hi-Z as long HIGH. At any time ...
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U U APPLICATIO S I FOR ATIO > t EOCtest CS TEST EOC BIT 0 SDO EOC Hi-Z Hi-Z Hi-Z SCK (INTERNAL) SLEEP CONVERSION DATA OUTPUT Figure 9. Internal Serial Clock, Reduced Data Output Length internal pull-up is not available ...
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LTC2401/LTC2402 U U APPLICATIO S I FOR ATIO CS BIT 31 BIT 30 SDO EOC CH0/CH1 SCK (INTERNAL) CONVERSION SLEEP The internal serial clock mode is selected at the end of the power-on reset (POR) cycle. The POR cycle is ...
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U U APPLICATIO S I FOR ATIO GND SDO Hi-Z SCK (INTERNAL) CONVERSION 100 1000 CAPACITANCE ON CS (pF) Figure 12. CS Capacitance ...
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LTC2401/LTC2402 U U APPLICATIO S I FOR ATIO used to shift the conversion result into external circuitry. After the 32nd rising edge pulled HIGH and a new conversion is immediately started. This is useful in appli- cations requiring ...
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U U APPLICATIO S I FOR ATIO reference regular FR-4 board, signal propagation velocity is approximately 183ps/inch for internal traces and 170ps/inch for surface traces. Thus, a driver gener- ating a control signal with a minimum transition time ...
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LTC2401/LTC2402 U U APPLICATIO S I FOR ATIO R SOURCE INTPUT C SIGNAL C IN SOURCE Figure 17 Network REF ...
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U U APPLICATIO S I FOR ATIO on the offset. However, the reference current similar to the input current at full-scale. For large values of reference capacitance (C > 0.01 F), the full-scale VREF error shift is ...
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LTC2401/LTC2402 U U APPLICATIO S I FOR ATIO ANTIALIASING One of the advantages delta-sigma ADCs offer over con- ventional ADCs is on-chip digital filtering. Combined with a large oversampling ratio, the LTC2401/LTC2402 signifi- cantly simplify antialiasing filter requirements. The digital ...
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U U APPLICATIO S I FOR ATIO see Figure 29. Similarly, the offset IN B SET errors due to R are removed by the ground sense input The absolute zero ...
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LTC2401/LTC2402 U U APPLICATIO S I FOR ATIO SCK SDO EOC CH1 Figure 32. Pseudo Differential Strain Guage Application There are no extra control or status pins required to perform the alternating 2-channel measurements. The LTC2402 only requires two digital ...
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U U APPLICATIO S I FOR ATIO The LTC2402’s single ended rejection of line frequencies ( 2%) and harmonics is better than 110dB. Since the device performs two independent single ended conver- sions each with > 110dB rejection, the overall ...
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LTC2401/LTC2402 U U APPLICATIO S I FOR ATIO for the forward and return paths (R1 = R2), the auxiliary channel on the LTC2402 can measure this drop. These errors are then removed with simple digital correction. The result of the ...
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... INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) 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 its circuits as described herein will not infringe on existing patent rights. ...
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... Noise, 8ppm INL, Pin Compatible with LTC2404/LTC2408 SET LTC2402 CH1 CH0 ZS SET SET LTC2402 + 2500V – CH1 CH0 ZS SET SET LTC2402 CH1 CH0 ZS SET 24012 F35 Noise P Low Charge Injection Serial Interface ON Isolation RMS 24012f LT/LCG 1000 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 2000 ...