What does the text suggest is an easy way to induce SCR latchup in a CMOS circuit board?
Explanation
This question highlights a common real-world cause of CMOS SCR latchup, as described in the 'CMOS pathologies' section.
Other questions
In the micropower light-integrating darkroom timer design, what is the maximum battery drain specified to achieve a 2-year life with a 9-volt, 500mAh battery?
What is the typical supply current per amp for the TLC25L2A micropower op-amp when Vs is +5V, according to the data provided?
What is a significant problem with bipolar programmable op-amps when operated at very low supply currents?
In the micropower light-integrating darkroom timer circuit, what is the primary function of the U2 (3440) op-amp?
What is the typical input bias current (Ib) for the OP-90 micropower op-amp?
According to the provided text, what is a key advantage of using modern MOSFET-based programmable op-amps like the ICL761x series over older bipolar types for micropower design?
What is the typical slew rate for the LT1012C micropower op-amp?
What unique feature does the LT1040 micropower comparator incorporate to achieve a very low average quiescent current?
Which of the following op-amps from Table 14.6 has the lowest typical supply current per amp at +5V?
What is the primary reason that using an ON/OFF switch was avoided in the design of the micropower light-integrating darkroom timer?
What is the primary reason the 3440 op-amp was considered a good choice for the U2 stage in the darkroom timer design?
What is the typical supply current (I_q) for the TLC27M4 micropower op-amp?
In the micropower darkroom timer design, what is the combined continuous current drain of the only two components that run continually, U1_ac and U2?
What is the primary method suggested for keeping CMOS logic power consumption low?
What is a major threat to low-power operation in CMOS circuits that can be triggered by current through protection diodes and results in heavy supply-to-supply conduction?
What is the typical supply current for the LP339 micropower quad comparator, per section?
What is the typical quiescent current of an Intersil ICM7555, a CMOS version of the 555 timer, at 5 volts?
How is a controller-type microprocessor generally distinguished from a computation-oriented type in the context of low-power design?
What is the specified static current drain for the Harris/Intel 80C86 and 80C88 microprocessors when the clock is stopped?
What is the purpose of a 'bus-hold' circuit, as found in some Harris and Intel CMOS peripheral chips?
According to the table of low-power comparators, what is the output type for the TLC372C?
In the degree-day logger design example, what component was chosen as the temperature sensor?
What is a key difference between the 'WAIT' mode and 'STOP' mode in the Motorola MC146805 CMOS controller?
What is the typical supply current for the HA5151 micropower op-amp at +5V?
What is one of the main problems associated with CMOS op-amps that the TI LinCMOS TLC250/270 series aims to solve using phosphorus-doped polysilicon gate technology?
What is the primary reason for using a 'current-sensing resistor' in the VDD lead of a CMOS chip in low-power design?
What is the maximum specified total supply voltage for most typical CMOS op-amps mentioned in the chapter?
What is the typical quiescent current of the OP-97E micropower op-amp at a supply voltage of +5V?
What is the maximum supply current per amp for the TLC251B programmable op-amp when it is set to its highest current mode?
Why must unused inputs of CMOS logic devices be tied to a supply rail (ground or VDD) in low-power designs?
What is the typical quiescent current of the OP-22 programmable op-amp when the per-amp supply current is set to 1 uA?
Which device is described as the 'undisputed champ' for operation at extremely low currents, capable of running at a few nanoamps of supply current?
What is the primary cause of a 'dramatic increase of input (leakage) current' in all FET op-amps (both JFET and MOSFET types)?
In the degree-day logger example, what is the typical idle current drain of the CPU?
What is the key functional difference between a programmable Unijunction Transistor (UJT) like the 2N6028 and a classic UJT?
What is the typical supply current for the LT1178A micropower op-amp at +5V?
In the context of micropower digital design, what is M^2L (Mickey Mouse logic)?
What is the typical quiescent current of a standard 4000-series CMOS relaxation oscillator when operated at 5 volts?
According to Table 14.8, what is the typical supply current for the LP311 low-power comparator?
In the degree-day logger design example, why was power switching used for the AD803 A/D converter?
What type of device is the Motorola MC145406, as described in the section on RS-232 drivers?
What is the key advantage of using a 'quasi-programmable' op-amp like the ICL7612?
What is the typical supply voltage range for the 74HC and 74AC series of high-speed CMOS logic?
In the degree-day logger design example, what is the maximum idle current drain specified for the RTC (Real-Time Clock)?
What is the purpose of the 'hibernation' mode in an RS-232 driver/receiver like the LT1039?
What is the typical value for the e_n (input noise voltage) at 10Hz for the AD821B micropower op-amp?
When using a 'software UART' to eliminate a hardware UART chip, which function is described as being more of a challenge to implement?
What is the minimum specified total supply voltage for the LM10 micropower op-amp?
What is the primary reason to choose an HClAC logic family over a 4000B/74C family in a low-power design?