tc7652 Microchip Technology Inc., tc7652 Datasheet
tc7652
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tc7652 Summary of contents
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... Be Used As Input Guard) 2002 Microchip Technology Inc. © General Description The TC7652 is a lower noise version of the TC7650, sacrificing some input specifications (bias current and bandwidth) to achieve a 10x reduction in noise. All the other benefits of the chopper technique are present, (i.e, freedom from offset adjust, drift and reliability prob- lems from external trim components) ...
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... NOTE 1: For 8-pin DIP connect to V DS21464B-page 2 Output Clamp Circuit Oscillator Main Amplifier A NULL Intermod Comparator B B NULL Amplifier NULL , "Z" pinout. SS RET TC7652 14-Pin DIP Only INT/EXT EXT CLK IN CLK OUT B Output (1) RETN V SS 2002 Microchip Technology Inc. © ...
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... Package Power Dissipation (T < 70°C) A 8-Pin Plastic DIP ....................................... 730mW 14-Pin Plastic DIP ..................................... 800mW Storage Temperature Range .............. -65°C to +150°C Operating Temperature Range C Device .......................................... 0°C to +70°C I Device ......................................... -25°C to +85°C TC7652 ELECTRICAL SPECIFICATIONS Electrical Characteristics +5V Symbol Parameter V Input Offset Voltage ...
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... TC7652 TC7652 ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics +5V Symbol Parameter I Supply Current S f Internal Chopping Frequency CH Clamp ON Current (Note 3) Clamp OFF Current (Note 3) Note 1: Limiting input current to 100µA is recommended to avoid latch-up problems. Typically 1mA is safe however, this is not guaranteed. ...
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... EXT CLK IN — 14 INT/EXT 2002 Microchip Technology Inc. © Description Nulling capacitor pins Inverting Input Non-inverting Input Negative Power Supply Output Voltage Clamp Output Positive Power Supply No internal connection Capacitor current return pin External Clock Input Select Internal or External Clock TC7652 DS21464B-page 5 ...
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... The output of the internal oscillator, before the divide- by-two circuit, is available at EXT CLK IN when INT/ EXT is high or unconnected. This output can serve as the clock input for a second TC7652 (operating in a master/slave mode), so that both op amps will clock at the same frequency. This prevents clock intermodula- tion effects when two TC7652's are used in a differen- tial amplifier configuration ...
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... R 1 Input 4.5 Guarding To benefit from TC7652 low input currents, take care assembling printed circuit boards. Clean boards with alcohol or TCE and blow dry with compressed air. To prevent contamination, coat boards with epoxy or sili- cone rubber. Even if boards are cleaned and coated, leakage cur- rents may occur because input pins are next to pins at supply potentials ...
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... The threshold input must tolerate the output clamp current ≈V without disrupting other parts of the system. Figure 4-6 shows how the TC7652 can offset null high slew rate and wideband amplifiers. Mixing the TC7652 with circuits operating at ±15V requires a lower supply voltage divider with the TC7660 voltage converter circuit operated " ...
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... FIGURE 4-6: 1437 OFFSET NULLED BY TC7652 TC7652 + – 22kΩ – Fast Amplifier FIGURE 4-7: SPLITTING +15V WITH THE 7660 AT >95% EFFICIENCY 2 8 TC7660 3 10µF 10µ 1MW 2002 Microchip Technology Inc. © 22kΩ Out +15V +7.5V 0V TC7652 DS21464B-page 9 ...
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... TC7652 5.0 TYPICAL CHARACTERISTICS Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e ...
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... Input Offset Voltage vs Common Mode Voltage 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 -6 2002 Microchip Technology Inc. © COMMON MODE VOLTAGE (V) TC7652 4 DS21464B-page 11 ...
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... TC7652 6.0 PACKAGING INFORMATION 6.1 Package Marking Information Package marking information not available at this time. 6.2 Package Dimensions 8-Pin Plastic DIP .045 (1.14) .070 (1.78) .030 (0.76) .040 (1.02) .400 (10.16) .348 (8.84) .200 (5.08) .140 (3.56) .150 (3.81) .115 (2.92) .110 (2.79) .022 (0.56) .090 (2.29) .015 (0.38) 14-Pin PDIP (Narrow) .770 (19.56) .745 (18.92) .200 (5.08) .140 (3.56) .150 (3.81) .115 (2.92) ...
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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. 2002 Microchip Technology Inc. TC7652 DS21464B-page 13 ...
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... TC7652 NOTES: DS21464B-page 14 2002 Microchip Technology Inc. ...
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... Use of Microchip’s products as critical com- ponents in life support systems is not authorized except with express written approval by Microchip. No licenses are con- veyed, implicitly or otherwise, under any intellectual property rights. 2002 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, FilterLab ...
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... Palazzo Taurus Colleoni 1 20041 Agrate Brianza Milan, Italy Tel: 39-039-65791-1 Fax: 39-039-6899883 United Kingdom Arizona Microchip Technology Ltd. 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44 118 921 5869 Fax: 44-118 921-5820 03/01/02 2002 Microchip Technology Inc. © ...