TC7107CPL Microchip Technology, TC7107CPL Datasheet

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... Normal CKW 44-Pin PQFP Formed Leads CLW 44-Pin PLCC — 2002 Microchip Technology Inc. © TC7106/A/TC7107/A General Description The TC7106A and TC7107A 3-1/2 digit direct display drive analog-to-digital converters allow existing 7106/ 7107 based systems to be upgraded. Each device has a precision reference with a 20ppm/°C max tempera- ture coefficient ...

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... TC7107AIJL COMMON BUFF BUFF INT INT 100's 100 BP/GND 20 BP/GND (7106A/7107A) (7106A/7107A REF REF 37 C TEST 3 REF COMMON OSC3 OSC2 OSC1 BUFF INT 1 10 100 1000 POL (Minus Sign) 44-Pin PQFP TC7106ACKW 28 BP/GND TC7107ACKW 27 POL 2002 Microchip Technology Inc. © ...

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... Typical Application 1MΩ + Analog 0.01µF Input – 47kΩ 0.22µF 2002 Microchip Technology Inc. © TC7106/A/TC7107/A 0.1µF LCD Display (TC7106/A) or Common Node w/ LED REF REF 31 Segment Drive POL Minus Sign 21 BP ANALOG 32 1 COMMON V+ TC7106/A TC7107 BUFF V 36 ...

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... Typ Max Unit -000.0 ±000.0 +000.0 Digital Reading Full Scale = 200.0mV 999 999/1000 1000 Digital V Reading V -1 ±0.2 +1 Counts -1 ±0.2 +1 Counts Full Scale = 200mV or Full Scale = 2.000V © = 25°C, A Test Conditions REF = 100mV REF + ≅ 200mV 2002 Microchip Technology Inc. ...

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... Refer to “Differential Input” discussion. 4: Backplane drive is in phase with segment drive for “OFF” segment, 180° out of phase for “ON” segment. Frequency is 20 times conversion rate. Average DC component is less than 50mV. 2002 Microchip Technology Inc. © TC7106/A/TC7107/A Min ...

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... A 0.1µF capacitor is used in most applications large Common mode voltage REF exists (for example, the V - pin is not at analog common), and a 200mV scale is IN used, a 1µF capacitor is recommended and will hold the rollover error to 0.5 count. - See Pin 36. REF Description 2002 Microchip Technology Inc. © ...

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... OSC2 40 (1) OSC1 2002 Microchip Technology Inc. © TC7106/A/TC7107/A Description The analog input required to generate a full scale output (1999 counts). Place 100mV between Pins 35 and 36 for 199.9mV full scale. Place 1V between Pins 35 and 36 for 2V full scale. See paragraph on Reference Voltage. ...

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... Integrating ADCs commonly operate with the signal integration period set to a multiple of the 50/60Hz power line period (see Figure 3-2). ). See RI FIGURE 3- Clock 10 Counter 0 0.1 NORMAL MODE REJECTION OF DUAL SLOPE CONVERTER T = Measured Period 1/T 10/T Input Frequency 2002 Microchip Technology Inc. © ...

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... IN ence capacitor. Circuitry within the chip ensures that the capacitor will be connected with the correct polarity to cause the integrator output to return to zero. 2002 Microchip Technology Inc. © TC7106/A/TC7107/A The time required for the output to return to zero is pro- portional to the input signal and is between 0 and 2000 counts ...

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... TC7106/A/TC7107/A FIGURE 5-2: TC7106A BLOCK DIAGRAM DS21455B-page 10 2002 Microchip Technology Inc. © ...

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... The TC7106A/7107A are drop-in replacements for the 7106/7107 parts. External component value changes are not required to benefit from the low drift internal reference. 2002 Microchip Technology Inc. © TC7106/A/TC7107/A 6.2 Clock Circuit Three clocking methods may be used (see Figure 6-1 ...

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... TC7106/A/TC7107/A FIGURE 6-2: TC7107A BLOCK DIAGRAM DS21455B-page 12 2002 Microchip Technology Inc. © ...

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... Desired Full Scale Integrator Output Swing INT C must have low dielectric absorption to minimize INT rollover error. A polypropylene capacitor is recom- mended. 2002 Microchip Technology Inc. © TC7106/A/TC7107/A 7.4 Integrating Resistor (R The input buffer amplifier and integrator are designed with class A output stages. The output stage idling cur- ...

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... COMMON MODE VOLTAGE REDUCES AVAILABLE INTEGRATOR ≠ SWING (V COM – Integrator – Where: 4000 = Integration Time = OSC C = Integration Capacitor Integration Resistor I + (Pin 36 (Pin 35) REF should be large com- REF + and con not externally con are usually connected, removing 2002 Microchip Technology Inc. © - ...

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... External R and C values do not need to be changed. Figure 8-4 shows analog common supplying the necessary voltage reference for the TC7106A/TC7107A. 2002 Microchip Technology Inc. © TC7106/A/TC7107/A Segment LCD Display Drive ...

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... TC7107A package power dissipation is reduced. Figure 9 curve tracer display showing the rela- tionship between output current and output voltage for a typical TC7107CPL. Since a typical LED has 1.8 volts across it at 7mA, and its common anode is connected to +5V, the TC7107A output is at 3.2V (point A on Figure 9-3) ...

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... Hamlin, Inc. 612 E. Lake St. 3902, 3933, 3903 Lake Mills, WI 53551 414-648-236100 Note: Contact LCD manufacturer for full product listing and specifications. 2002 Microchip Technology Inc. © TC7106/A/TC7107/A 10.2 Light Emitting Diode Display Sources Several LED manufacturers supply seven segment digits with and without decimal point annunciators for the TC7107A ...

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... TC7106A, USING THE INTERNAL REFERENCE: 200mV FULL SCALE, 3 READINGS-PER-SECOND (RPS) Set V = 100mV REF 40 100kΩ 100pF 36 35 1kΩ 22kΩ 34 0.1µF 33 1MΩ 0.01µ 0.47µF – 29 47kΩ – 27 0.22µ Display Backplane 2002 Microchip Technology Inc. © ...

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... DEVELOPING UNDER RANGE AND OVER RANGE SIGNALS FROM TC7106A OUTPUTS Logic V CC TC7106A O/R U/R 20 CD4023 OR 74C10 CD4077 O/R = Over Range U/R = Under Range 2002 Microchip Technology Inc. © TC7106/A/TC7107/A FIGURE 10-8: = 100mV +5V TC7106A + TC7107A IN – -5V FIGURE 10-9: To PIn 1 40 TC7107A To Logic V ...

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... AD636 1kΩ 1MΩ 10 2.2µF 51kΩ 5.1kΩ TC911 50kΩ – OUT 1.86V @ 25°C 50kΩ 1. TC7106A REF REF 32 Analog Common 0.01 µ SEG DRIVE LCD Display REF TC7106A V - REF V = 2.00V Common V- 26 2002 Microchip Technology Inc. © ...

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... Note: Drawing does not represent total number of pins. Component Taping Orientation for 44-Pin PQFP Devices Carrier Tape, Number of Components Per Reel and Reel Size Package 44-Pin PQFP Note: Drawing does not represent total number of pins. 2002 Microchip Technology Inc. © TC7106/A/TC7107/A User Direction of Feed P Standard Reel Component Orientation ...

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... MIN. .020 (0.51) .016 (0.41) .610 (15.49) .590 (14.99) 3° MIN. .700 (17.78) .610 (15.50) Dimensions: inches (mm) .620 (15.75) .590 (15.00) 3° MIN. .700 (17.78) .620 (15.75) Dimensions: inches (mm) 2002 Microchip Technology Inc. © ...

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... PQFP PIN 1 .018 (0.45) .012 (0.30) .031 (0.80) TYP. .398 (10.10) .390 (9.90) .557 (14.15) .537 (13.65) 2002 Microchip Technology Inc. © TC7106/A/TC7107/A PIN 1 .050 (1.27) TYP. .180 (4.57) .165 (4.19) 7° MAX. .009 (0.23) .005 (0.13) .398 (10.10) ...

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... The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. DS21455B-page 24 TC711X X X XXX 2002 Microchip Technology Inc. © ...

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... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...

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... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology Taiwan 11F-3, No. 207 ...