TC835CPI Microchip Technology, TC835CPI Datasheet
TC835CPI
Specifications of TC835CPI
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TC835CPI Summary of contents
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... PB0 PB1 PB2 PB3 Channel Selection © 2007 Microchip Technology Inc. General Description The TC835 is a low power, 4-1/2 digit (0.005% resolution), BCD analog-to-digital converter (ADC) that has been characterized for 200 kHz clock rate operation. The five conversions per second rate is nearly twice as fast as the ICL7135 or TC7135 ...
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... TC835 Package Type 28-Pin PDIP UNDERRANGE REF OVERRANGE ANALOG 3 26 STROBE COM 25 RUN/HOLD INT OUT DIGTAL GND AZ IN BUFF OUT 6 23 POLARITY CLOCK IN REF- TC835CPI BUSY REF –INPUT D1 (LSD) 19 +INPUT (MSD (LSB (MSD OVERRANGE 8 UNDERRANGE 9 SUB 10 V– 11 REF IN 12 ANALOG COM ...
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... Specification related to clock frequency range over which the TC835 correctly performs its various functions. Increased errors result at higher operating frequencies. © 2007 Microchip Technology Inc. † Stresses above those listed under "Absolute Maximum Rat- ings" may cause permanent damage to the device. These are ...
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... Specification related to clock frequency range over which the TC835 correctly performs its various functions. Increased errors result at higher operating frequencies. DS21478C-page 4 = +25° 200 kHz +5V -5V. A CLOCK Sym Min Typ Max V– — I– — 0 — 8.5 30 Unit Conditions 0Hz CLK 0Hz CLK mΩ 0Hz CLK © 2007 Microchip Technology Inc. ...
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... Over range output. A logic High indicates that the analog input exceeds the full scale input range. 28 UNDERRANGE Under range output. A logic High indicates that the analog input is less than 9% of the full scale input range. © 2007 Microchip Technology Inc. Table 2-1. Description TC835 DS21478C-page 5 ...
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... Figure Integrator Comparator - - + + Switch Drive Clock Phase Control Control Logic Counter Display ≈ ≈ IN REF V 1 REF Variable Reference Integrate Time Basic Dual Slope Converter. switches. The feedback loop, R 3-2). © 2007 Microchip Technology Inc. ...
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... V REF TABLE 3-6: INTERNAL ANALOG GATE STATUS Conversion Cycle Phase SW System Zero — Input Signal Integration Closed Reference Voltage Integration — Integrator Output Zero — *Note: Assumes a positive polarity input signal. SW © 2007 Microchip Technology Inc +IN Comparator REF Digital Z Section Analog ...
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... Reference Voltage Input The REF IN input must be a positive voltage with respect to ANALOG COMMON. A reference voltage circuit is shown in Figure 4- kΩ TC835 REF 10 kΩ µF ANALOG COMMON Analog Ground FIGURE 4-1: Using An External Reference. © 2007 Microchip Technology Inc. V+ MCP1525 2.5 V REF ...
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... Polarity MSB From Analog Section Latch Polarity FF Zero Cross Detect 24 22 DGND Clock RUN/ In HOLD FIGURE 5-1: Digital Section Functional Diagram. © 2007 Microchip Technology Inc Digit Drive Multiplexer Latch Latch Latch Counters Control Logic Overrange Underrange STROBE TC835 D2 D1 ...
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... (LSD) D5 Data Data Data Data Data Note Absence of STROBE 200 Counts 200 Counts 200 Counts 200 Counts 200 Counts Strobe Signal Low Five © 2007 Microchip Technology Inc. ...
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... The POLARITY bit is valid even for a zero reading. Signals less than the converter's LSB will have the signal polarity determined correctly. This is useful in null applications. © 2007 Microchip Technology Inc. TC835 5.7 Digit Drive Outputs Digit drive signals are positive going signals. The scan ...
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... This corresponds to five readings per second (see Table 6-1 and INT TABLE 6-1: μ A) Oscillator Frequency (kHz) 100 120 200 300 400 800 1200 . REF Table 6-2). CONVERSION RATE VS. CLOCK FREQUENCY Conversion Rate (Conv./Sec © 2007 Microchip Technology Inc. ...
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... Since the nonlinearity and noise do not increase substantially with frequency, clock rates MHz may be used. For a fixed © 2007 Microchip Technology Inc. clock frequency, the extra count or counts caused by comparator delay will be a constant and can be subtracted out digitally. ...
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... R 2 100 kΩ kΩ 2 0.1 µF FIGURE 6-5: + RBI +5V 1 DM7447A +5V 16 kΩ 1 kΩ 56 kΩ OUT 7 LM311 3 – kΩ kΩ 390 +5V 2 kΩ 100 kΩ LM311 V OUT 3 4 – kΩ Comparator Clock Circuits. © 2007 Microchip Technology Inc. ...
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... B4 B2 FIGURE 6-6: 4-1/2 Digit ADC with Multiplexed Common Cathode LED Display. SET V REF V IN REF 100 kΩ Analog GND 0.47 µF Signal 100 kΩ Input 0.1 µ FIGURE 6-7: Test Circuit. © 2007 Microchip Technology Inc. + 150Ω kΩ 200 kHz ...
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... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. DS21478C-page 16 Example TC835CPI^^ 0741256 *h Example: M TC835CKW e ^^0741256 3 ...
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... N NOTE © 2007 Microchip Technology Inc TC835 c DS21478C-page 17 ...
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... TC835 NOTE β DS21478C-page NOTE 2 φ α A2 © 2007 Microchip Technology Inc. ...
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... NOTE β © 2007 Microchip Technology Inc NOTE 2 A φ TC835 α A2 DS21478C-page 19 ...
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... TC835 DS21478C-page 20 © 2007 Microchip Technology Inc. ...
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... Updates package marking information for pb- free markings. 3. Updated package outline drawings and added landing pattern to applicable package outline drawing. Revision B (May 2002) The following is the list of modifications: 1. Undocumented changes Revision A (April 2002) • Original Release of this Document. © 2007 Microchip Technology Inc. TC835 DS21478C-page 21 ...
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... TC835 NOTES: DS21478C-page 22 © 2007 Microchip Technology Inc. ...
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... Plastic Metric Quad Flatpack, (MQFP), 44-lead BU = Plastic Metric Quad Flatpack, (MQFP), 64-lead © 2007 Microchip Technology Inc. TC835 . Examples: a) TC835CBU: 4-1/2 Digit BCD A/D, 64LD MQFP package. b) TC835CKW: 4-1/2 Digit BCD A/D, 44LD MQFP package. c) TC835CPI: 4-1/2 Digit BCD A/D, 28LD PDIP package. DS21478C-page 23 ...
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... TC835 NOTES: DS21478C-page 24 © 2007 Microchip Technology Inc. ...
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... PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
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... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2007 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...