TC7135CLI Microchip Technology, TC7135CLI Datasheet
TC7135CLI
Specifications of TC7135CLI
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TC7135CLI Summary of contents
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... Signal 100 kΩ Input 0.1 µ © 2007 Microchip Technology Inc. General Description The TC7135 4-1/2 digit A/D Converter (ADC) offers 50 ppm (1 part in 20,000) resolution with a maximum nonlinearity error of 1 count. An auto-zero cycle reduces zero error to below 10 µV and zero drift to 0.5 µ ...
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... NOTE internal connection. DS21460D-page 2 RUN/HOLD DIGTAL GND NC 34 POLARITY NC 35 CLOCK IN STROBE 36 BUSY OVERRANGE 37 D1 (LSD) UNDERRANGE 38 D2 V– 39 REF IN 40 COMMON ANALOG OVERRANGE 8 UNDERRANGE V– 11 REF IN 12 ANALOG COM 44-Pin MQFP TC7135 64-Pin MQFP TC7135 © 2007 Microchip Technology Inc. ...
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... Specification related to clock frequency range over which the Increased errors result at higher operating frequencies. © 2007 Microchip Technology Inc. † Notice: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation ...
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... Specification related to clock frequency range over which the Increased errors result at higher operating frequencies. DS21460D-page 4 = +25° 120 kHz +5V -5V. A CLOCK Min. Typ. Max. Units — — 0 — 8 TC7135 correctly performs its various functions. Conditions CLK CLK CLK © 2007 Microchip Technology Inc. ...
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... Pins not identified or documented are NC (no connects). © 2007 Microchip Technology Inc. Table 2-1. Symbol V– Negative power supply input. REF IN External reference input. ANALOG COMMON Reference point for REF IN. INT OUT Integrator output. Integrator capacitor connection Auto-zero inpt. Auto-zero capacitor connection. ...
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... Control Control Logic Counter Display ≈ ≈ IN REF V 1 REF Variable Reference Integrate Time Basic Dual-Slope Converter Reference Figures 1 IZ Closed — Figure 3-2 — — Figure 3-3 Closed — Figure 3-4 Closed Closed Figure 3-5 © 2007 Microchip Technology Inc. ...
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... SW Switch Open I IN Switch Closed FIGURE 3-3: Input Signal Integration Phase. © 2007 Microchip Technology Inc. 3.2.3 REFERENCE VOLTAGE INTEGRATION The previously charged reference capacitor is con- nected with the proper polarity to ramp the integrator output back to zero reading displayed is: EQUATION 3-3: switches ...
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... The reference voltage input (REF IN) must be a positive voltage with respect to ANALOG COMMON. A reference voltage circuit is shown in Figure V+ 10 kΩ TC7135 REF 10 kΩ µF ANALOG COMMON Analog Ground FIGURE 4-1: Using An External Reference. © 2007 Microchip Technology Inc. 4-1. 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 TC7135 D2 D1 ...
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... Analog Input. FIGURE 5-3: Times Per Conversion pulse, 5 goes high for 200 clock 4 digit (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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... If the output count full scale or less (-1800 counts), the UNDERRANGE register bit is set at the end of BUSY. The bit is set low at the next signal integration phase. © 2007 Microchip Technology Inc. TC7135 5.6 POLARITY Output A positive input is registered by a logic ‘1’ polarity signal ...
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... Hz and 400 Hz noise. This corresponds to five readings per second (see TABLE 6-1: × INT Oscillator Frequency × μ A (kHz) 100 120 200 300 400 800 1200 = REF Table 6-1 and Table 6-2). CONVERSION RATE VS. CLOCK FREQUENCY Conversion Rate (Conv./Sec © 2007 Microchip Technology Inc. ...
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... By careful selection of the ratio between this resistor and the integrating © 2007 Microchip Technology Inc. resistor (a few tens of ohms in the recommended circuit), the comparator delay can be compensated and the maximum approximately a factor of 3 ...
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... ------------------ kΩ 100 kΩ kΩ 2 0.1 µF FIGURE 6-4: + RBI +5V DM7447A +5V 16 kΩ 1 kΩ 56 kΩ OUT 7 LM311 3 – kΩ kΩ 390 +5V 2 kΩ 100 kΩ LM311 OUT 3 4 – kΩ Comparator Clock Circuits. © 2007 Microchip Technology Inc. ...
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... C – BUSY REF kΩ –INPUT (LSD) D1 SIG 0.1 10 +INPUT D2 IN µ (MSD (LSB) (MSB FIGURE 6-5: 4-1/2 Digit ADC With Multiplexed Common Cathode LED Display. © 2007 Microchip Technology Inc. + 150Ω kΩ 200 kHz OSC TC7135 10 9 150Ω ...
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... 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. DS21460D-page 16 Example TC7135 e CLI^^ 3 0741256 Example TC7135CPI^^ 0741256 *h Example: M TC7135CKW e ^^0741256 3 Example: M TC7135CBU 0741256 © 2007 Microchip Technology Inc. ...
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... D D1 NOTE © 2007 Microchip Technology Inc. CH2 x 45° CH1 x 45° CH3 x 45° TC7135 A1 A3 DS21460D-page 17 ...
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... TC7135 N NOTE DS21460D-page © 2007 Microchip Technology Inc. c ...
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... NOTE β © 2007 Microchip Technology Inc NOTE 2 φ TC7135 α A2 DS21460D-page 19 ...
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... TC7135 NOTE β DS21460D-page NOTE 2 A φ α A2 © 2007 Microchip Technology Inc. ...
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... Microchip Technology Inc. TC7135 DS21460D-page 21 ...
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... TC7135 NOTES: DS21460D-page 22 © 2007 Microchip Technology Inc. ...
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... Revision C (January 2004) The following is the list of modifications: 1. Undocumented Changes Revision B (May 2002) The following is the list of modifications: 1. Undocumented changes Revision A (March 2001) • Original Release of this Document. © 2007 Microchip Technology Inc. TC7135 DS21460D-page 23 ...
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... TC7135 NOTES: DS21460D-page 24 © 2007 Microchip Technology Inc. ...
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... Microchip Technology Inc. TC7135 . Examples: a) TC7135CLI: 4-1/2 Digit A/D, BCD Output, PLCC package. b) TC7135CPI: 4-1/2 Digit A/D, BCD Output, PDIP package. c) TC7135CLI713: 4-1/2 Digit A/D, BCD Output, PLCC package, Tape and Reel. d) TC7135CBU: 4-1/2 Digit A/D, BCD Output, MQFP package. DS21460D-page 25 ...
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... TC7135 NOTES: DS21460D-page 26 © 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 ...