DC1338A Linear Technology, DC1338A Datasheet
DC1338A
Specifications of DC1338A
Related parts for DC1338A
DC1338A Summary of contents
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... L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. I LOAD ...
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LTC2990 absoluTe MaxiMuM raTings (Note 1) Supply Voltage V ................................... –0.3V to 6.0V CC Input Voltages V1, V2, V3, V4, SDA, SCL, ADR1, ADR2 ..................................–0. Operating Temperature Range LTC2990C ................................................ 0°C to 70°C LTC2990I .............................................–40°C to 85°C Storage ...
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T SYMBOL PARAMETER Res Resolution (No Missing Codes) INL Integral Nonlinearity C V1 Through V4 Input Sampling IN Capacitance I V1 Through V4 Input Average Sampling IN(AVG) Current I V1 Through V4 ...
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LTC2990 Typical perForMance characTerisTics Shutdown Current vs Temperature 3.5 3 2.5 2.0 1 3.3V CC 1.0 0.5 0 –25 0 150 – 100 125 T (°C) AMB 2990 G01 V TUE ...
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Typical perForMance characTerisTics Single-Ended Noise 4000 4800 READINGS 3500 3000 2500 2000 1500 1000 500 0 –2 – –3 0 LSBs (305.18µV/LSB) 2990 G10 LTC2990 Differential Noise 500 800 READINGS 400 300 200 100 0 –4 –3 ...
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LTC2990 pin FuncTions V1 (Pin 1): First Monitor Input. This pin can be config- ured as a single-ended input or the positive input for a differential or remote diode temperature measurement (in combination with V2). When configured for remote diode ...
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FuncTional DiagraM REMOTE DIODE SENSORS INTERNAL SENSOR TiMing DiagraM SDAI/SDAO SCL t HD, STA START CONDITION MODE MUX ADC V CC REFERENCE SU, DAT SU, STA HD, DATO, t ...
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LTC2990 operaTion The LTC2990 monitors voltage, current, internal and remote temperatures. It can be configured through interface to measure many combinations of these pa- rameters. Single or repeated measurements are possible. Remote temperature measurements use a ...
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The change in sensor voltage per degree temperature change is 275µV/°C, so environmental noise must be kept to a minimum. Recommended shielding and PCB trace considerations are illustrated in Figure 2. The diode equation: ...
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LTC2990 applicaTions inForMaTion target application beneficial to configure the LTC2990 for Kelvin coded results to limit the number of math opera- tions required in the target processor. η ACT Unsigned 2 T ...
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Device Configuration The LTC2990 is configured by writing the control register through the serial interface. Refer to Table 4 for control register bit definition. The device is capable of many ap- plication configurations including voltage, temperature and current ...
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LTC2990 applicaTions inForMaTion where R is the current sensing resistor, typically SENSE <1Ω The LTC2990 measures convert the contents the V register to voltage, use the following equation 2.5 ...
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LTC2990 acknowledges once more and latches the data into its internal register. The transmission is ended when the master sends a STOP condition. If the master continues sending a second data byte, ...
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LTC2990 applicaTions inForMaTion Figure 6. LTC2990 Serial Bus Repeated Write Byte Protocol S ADDRESS 10011a1:a0 S ADDRESS 10011a1:a0 Figure 8. LTC2990 Serial Bus Repeated Read Byte Protocol 2 Table Base Address 2 HEX I C BASE ADDRESS ...
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Table 3. STATUS Register BIT NAME Ready Ready b4 V3, T2, V3 – V4 Ready b3 V2 Ready b2 V1, T1, V1 – V2 Ready b1 T Ready INT b0 Busy* ...
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LTC2990 applicaTions inForMaTion Table 5. Voltage/Current Measurement MSB Data Register Format BIT 7 DV* *Data Valid is set when a new result is written into the register. Data Valid is cleared when this register is addressed (read) by the I ...
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Table 9. Conversion Formats VOLTAGE FORMATS Single-Ended LSB = 305.18µV Differential LSB = 19.42µ Result + 2.5V CC LSB = 305.18µV TEMPERATURE FORMATS Temperature Internal LSB = 0.0625 Degrees Table 10. ...
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LTC2990 Typical applicaTions High Voltage/Current and Temperature Monitoring R SENSE LOAD 10A 20 1% +IN –INS + – –INF – REG OUT LTC6102HV 200k 1% 4.75k 0.1µ 0.1µF ...
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Typical applicaTions MOTOR CONTROL VOLTAGE ±2.2A 5V INTERFACE CURRENT AND TEMPERATURE CONFIGURATION: CONTROL REGISTER: 0x59 T REG 4, 5 AMB I REG 6, 7 MOTOR T REG A, B MOTOR V REG MOTOR ...
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LTC2990 Typical applicaTions 3.3V 0.1µ 2-WIRE SDA LTC2990 SCL INTERFACE ADR0 ADR1 GND CONTROL REGISTER: 0x5D T AMB BATTERY I AND V MONITOR 15m * CHARGING CURRENT 5V ...
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Typical applicaTions 5V µC CONTROL REGISTER: 0x5D T AMB T WET T DRY V CC REFERENCES: http://en.wikipedia.org/wiki/Hygrometer http://en.wikipedia.org/wiki/Psychrometrics 3.3V 0.1µ SDA µC LTC2990 SCL ADR0 ADR1 GND T CONTROL REGISTER: 0x5D T REG 4, 5 AMB T REG ...
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LTC2990 Typical applicaTions HEATER VOLTAGE 5V 2-WIRE INTERFACE HEATER CONSTRUCTION: 5FT COIL OF #34 ENAMEL WIRE ~1.6 AT 70° ~0.4W WITH T HEATER VOLTAGE AND TEMPERATURE CONFIGURATION: CONTROL REGISTER: 0x58 T REG 4, 5 AMB ...
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... LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX 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. ...
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... Delta Sigma ADC with PGA, Easy Drive LTC2487 2 and I C Interface LTC6102/LTC6102HV Precision Zero Drift Current Sense Amplifier Easy Drive is a trademark of Linear Technology Corporation. Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● ...