tc7126a Microchip Technology Inc., tc7126a Datasheet
tc7126a
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tc7126a Summary of contents
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... The TC7126A’s extremely low-power drain and 9V battery operation make it ideal for portable applications. The TC7126A reduces linearity error to less than 1 count. Rollover error (the difference in readings for equal magnitude, but opposite polarity input signals) is below ± ...
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... PDIP (Reverse Reverse Pin D 2 Configuration 1 TC7126RCPL - TC7126ARCPL 1 TC7126RIPL TC7126ARIPL 10 100's ...
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... Typical Application 1MΩ + Analog 0.01μF Input – 0.33 180kΩ μF 0.15μF Note: Pin numbers refer to 40-pin DIP. © 2006 Microchip Technology Inc. 0.1μF TC7126 TC7126A REF REF 31 Segment 2– Drive 22– POL Minus Sign 21 BP ANALOG ...
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... TC7126/A Functional Block Diagram DS21458C-page 4 © 2006 Microchip Technology Inc. ...
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... Full Scale = 200mV = 199mV, 0°C ≤ T ≤ +70° Ext. Ref. Temp Coeff. = 0ppm/°C — 250kΩ Between Common and V+ 0°C ≤ T ≤ +70°C (“C” Devices) — A TC7126 TC7126A -25°C ≤ T ≤ +85°C (“I” Device) A (TC7126A) DS21458C-page 5 ...
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... DS21458C-page 6 – 16kHz, and T = +25°C, unless otherwise noted. A Min Typ Max 2.7 3.05 3. — 55 100 Unit Test Conditions V 250kΩ Between Common and P P-P μ 0V (Note 6) IN © 2006 Microchip Technology Inc. ...
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... ANALOG COMMON 33 (8) C REF © 2006 Microchip Technology Inc. Description Positive supply voltage. Activates the D section of the units display. Activates the C section of the units display. Activates the B section of the units display. Activates the A section of the units display. Activates the F section of the units display. ...
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... Pins 40, 39 and 38 make up the oscillator section. For a 48kHz clock (3 readings, 39 per second), connect Pin 40 to the junction of a 180kΩ resistor and a 50pF capacitor. The 180kΩ resistor is tied to Pin 39 and the 50pF capacitor is tied to Pin 38. © 2006 Microchip Technology Inc. ...
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... DETAILED DESCRIPTION (All Pin Designations Refer to 40-Pin PDIP.) 3.1 Dual Slope Conversion Principles The TC7126A is a dual slope, integrating analog-to- digital converter. An understanding of the dual slope conversion technique will aid in following the detailed TC7126/A operation theory. The conventional dual slope converter measurement cycle has two distinct phases: • ...
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... TC7126/A 4.0 ANALOG SECTION In addition to the basic integrate and de-integrate dual slope cycles discussed above, the TC7126A design incorporates an auto-zero cycle. This cycle removes buffer amplifier, integrator and comparator offset volt- age error terms from the conversion. A true digital zero reading results without external adjusting potentiome- ters ...
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... LCD life. The polarity segment driver is ON for negative analog inputs are reversed, this indicator reverses. On the TC7126A, when the TEST pin is pulled to V+, all segments are turned ON and the display reads - 1888. During this mode, LCD segments have a constant DC voltage impressed ...
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... INT . Nominal Full Scale Voltage 200mV 2V 0.33μF 0.033μF 180kΩ 1.8MΩ 0.047μF 0.047μF = 48kHz (3 readings per sec). OSC is selected from the OSC 0. OSC generate the TC7126A’s by 800. frequencies of 20kHz, 100kHz, © 2006 Microchip Technology Inc. is ...
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... The differential reference can also be used where a digital zero reading is required when V zero. This is common in temperature measuring instru- mentation. A compensating offset voltage can be applied between analog common and V ducer output is connected between V common. © 2006 Microchip Technology Inc. V REF 100mV 400mV. ...
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... The TC7126A offers a significantly improved analog common temperature provides a very stable voltage, suitable for use as a ref- erence. The temperature coefficient of analog common is typically 35ppm/°C for the TC7126A and 80 ppm/°C for the TC7126. Segment Drive V C ...
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... V The analog common pin serves to set the analog sec- tion reference, or common point. The TC7126A is spe- cifically designed to operate from a battery any measurement system where input signals are not refer- enced (float) with respect to the TC7126A’ ...
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... LD-H7992AZ TEST 3902, 3933, 3903 FIGURE 8-1: Annunciator Drives 8.3 Flat Package The TC7126 is available in an epoxy 64-pin formed lead package. A test socket for the TC7126ACBQ device is available: Part Number: Manufacturer: Distribution: 8.4 Ratiometric Resistance Measurements The TC7126A’s true differential input and differential reference make ratiometric reading possible ...
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... AD636 6.8μ 2.2 μF 20kΩ 10% TC7126 TC7126A 240kΩ 10kΩ REF REF 32 ANALOG COMMON 1MΩ 10 0.01 μ OUT Segment ...
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... FIGURE 8-6: Coefficient Resistor Temperature Sensor REF TC7126A 50kΩ REF 50kΩ COMMON 160kΩ 1N4148 1 IN 20kΩ TC7126A REF 20kΩ REF COMMON Positive Temperature © 2006 Microchip Technology Inc. ...
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... 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. © 2006 Microchip Technology Inc. User Direction of Feed P Standard Reel Component Orientation for 713 Suffix Device ...
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... Note: Drawing does not represent total number of pins. DS21458C-page 20 PIN 1 .555 (14.10) .530 (13.46) .040 (1.02) .020 (0.51) .015 (0.38) .008 (0.20) .022 (0.56) .015 (0.38 Pitch (P) Part Per Full Reel 24 mm 500 .610 (15.49) .590 (14.99) 3° MIN. .700 (17.78) .610 (15.50) Dimensions: inches (mm) Reel Size 13 in Dimensions: inches (mm) © 2006 Microchip Technology Inc. ...
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... Package Dimensions (Continued) 44-Pin 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) © 2006 Microchip Technology Inc. 7° Max. .009 (0.23) .005 (0.13) .398 (10.10) .390 (9.90) .557 (14.15) .537 (13.65) .096 (2.45) Max. Dimensions: inches (mm) TC7126/A .041 (1.03) .026 (0.65) .010 (0.25) Typ. .083 (2.10) .075 (1.90) DS21458C-page 21 ...
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... TC7126/A NOTES: DS21458C-page 22 © 2006 Microchip Technology Inc. ...
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... To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office PART CODE TC7126X X XXX A or blank* R (reversed pins) or blank (CPL pkg only) * "A" parts have an improved reference TC Package Code (see Device Selection Table) © 2006 Microchip Technology Inc. TC7126/A . DS21458C-page 23 ...
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... TC7126/A NOTES: DS21458C-page 24 © 2006 Microchip Technology Inc. ...
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... Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. © 2006 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, K ...
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... 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 © 2006 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris ...