|E1||Wide-area, digital transmission scheme, used predominantly in Europe, that carries data at a rate of 2.048Mbps. E1 lines can be leased for private use from common carriers.|
|E2||A line that carries four multiplexed E1 signals with a data rate of 8.448Mbps.|
|E3||Wide-area, digital transmission scheme used predominantly in Europe that carries data at a rate of 34.368Mbps. E3 lines can be leased for private use from common carriers.|
|EAM||Electro-Absorption Modulators: Chip-level modulation devices often integrated into hybrid transponder devices, alongside lasers.|
|ECB||Electrically controlled birefringence|
|ECM||Electret capacitor microphone|
|EconoReset||The simplest form of microprocessor supervisory circuit, it monitors the power supply for the microprocessor and provides only a power-on reset function.|
|EconOscillator||Low-cost, surface-mount, CMOS oscillator family from Maxim. EconOscillators replace crystal-based oscillators. They need no external crystals or timing components.
See: EconOscillator product index for additional descriptions, features, etc.
EconOscillator is a trademark of Maxim Integrated
|EDFA||Erbium-doped fiber-optical amplifier|
|EDGE||Enhanced Data Rates for GSM Evolution: An enhanced modulation technique designed to increase network capacity and data rates in GSM networks. EDGE should provide data rates up to 384Kbps.|
|EEPROM||Electrically erasable programmable read-only memory|
|Effective Number Of Bits||See ENOB|
|Effective Series Inductance||See ESL|
|Effective Series Resistance||See ESR|
|EFT||Electrical fast transient|
|EIA||Electronic Industries Alliance: Among other things, the EIA sponsors electrical and electronic standards.|
|EIA-JEDEC||Electronic Industries Association/Joint Electron Device Engineering Council|
|Electric Vehicle Service Equipment||See EVSE|
|Electro-Absorption Modulator||See EAM|
|Electromagnetic Interference||See EMI|
|Electromotive Force||See Volt|
|Electronic Digital Rheostat||See Dallastat|
|Electronic Industries Alliance||See EIA|
|Electrostatic Discharge||See ESD|
|Embedded System||A system in which the computer (generally a microcontroller or microprocessor) is included as an integral part of the system.
Often, the computer is relatively invisible to the user, without obvious applications, files, or operating systems. Examples of products with invisible embedded systems are the controller that runs a microwave oven or the engine control system of a modern automobile.
|EMC||Electromagnetic Compatibility: The ability of electronic equipment to be a "good electromagnetic neighbor": It neither causes, nor is susceptible to, electromagnetic interference (within the limits of applicable standards).|
|EMI||Electromagnetic Interference: Unwanted noise from electromagnetic radiation.
See: EMI Reduction Solutions page.
|End Point||Behavior of the device at the limit of temperature or voltage.|
|Energy Harvesting||Energy harvesting (also known as power harvesting or energy scavenging) is the process in which energy is captured from a system's environment and converted into usable electric power. Energy harvesting allows electronics to operate where there's no conventional power source, eliminating the need to run wires or make frequent visits to replace batteries.
An energy harvesting system generally includes circuitry to charge an energy storage cell, and manage the power, providing regulation and protection.
Energy source examples include light (captured by photovoltaic cells), vibration or pressure (captured by a piezoelectric element), temperature differentials (captured by a thermo-electric generator) radio energy (captured by an antenna); and even biochemically produced energy (such as cells that extract energy from blood sugar).
More: Application note 5259, "Energy Harvesting Systems Power the Powerless"
|Energy Scavenging||See Energy Harvesting|
|Enhanced Data Rates For GSM Evolution||See EDGE|
|ENOB||Effective Number of Bits: An indication of the quality of an analog-to-digital converter (ADC). The measurement is related to the test frequency and the signal-to-noise ratio.|
|EP||See Exposed Pad|
|EPON||Ethernet (-based) passive optical network|
|EPROM||Erasable programmable read-only memory|
|Equivalent Series Inductance||See ESL|
|Equivalent Series Resistance||See ESR|
|ERC||Extinction ratio control|
|Error Vector Magnitude||See EVM|
|ESBGA||Enhanced Super Ball-Grid Array (trademark of Amkor/Anam)|
|ESD||Electrostatic Discharge: Release of stored static electricity. Most commonly: The potentially damaging discharge of many thousands of volts that occurs when an electronic device is touched by a charged body.
See the following application notes that describe how ESD is generated, how it damages electronic systems, human body and machine models for testing, IEC compliance levels, and design approaches.
|ESD Protected||See ESD Protection|
|ESD Protection||Devices added to input and output pins on an IC to protect the internal circuitry from the damaging effect of electrostatic discharge.
See: ESD Overview.
|ESF||Extended Superframe: A DS1 framing format in which 24 DS0 times lots, plus a coded framing bit are organized into a frame which is repeated 24 times to form a superframe.|
|ESL||Effective/Equivalent Series Inductance is the parasitic inductance in a capacitor or resistor.|
|ESP||Extended stack pointer|
|ESR||Effective Series Resistance (or Equivalent Series Resistance or ESR) is the resistive component of a capacitor's equivalent circuit.
A capacitor can be modeled as an ideal capacitor in series with a resistor and an inductor. The resistor's value is the ESR.
|Ethernet||A family of network protocols based on asynchronous frames. The Ethernet framing structure provides a flexible payload container with basic addressing and error detection mechanisms.|
|EV||1. Electric Vehicle.
2. Evaluation, as in "EV Kit."
|EV Kit||See Evaluation Kit|
|Eval Kit||See Evaluation Kit|
|Evaluation Kit||Evaluation Kit (EV Kit, Development Kit): A printed circuit board with an integrated circuit and support components to produce a working circuit for evaluation and development. Most Evaluation Kits are fully assembled and tested.
EVKIT: Part number suffix used for Maxim Evaluation Kits.
Dallas Semiconductor, now owned by Maxim, used the term "development kit."
|Evaluation System||See EVSYS|
|EVKIT||See Evaluation Kit|
|EVM||Error Vector Magnitude: A measure of the difference between the (ideal) waveform and the measured waveform. The difference is called the error vector, usually referred to with regard to M-ary I/Q modulation schemes like QPSK, and shown on an I/Q "constellation" plot of the demodulated symbols. Also see: "Phase Noise and TD-SCDMA UE Receiver," www.maximintegrated.com/an1824|
|EVSE||EVSE is an abbreviation for Electric Vehicle Service Equipment, referring to a charging station.
See: Application Note 5348: G3-PLC Technology Finally Makes Charging an Electric Vehicle Smart
|EVSYS||Evaluation System: Evaluation kits that also include an interface board for connecting to a personal computer and Windows-based EVKit software.
EVSYS: Suffix used for Maxim Evaluation System part numbers.
|Exposed Pad||Offered in some packages to improve thermal dissipation or lower the impedance of the ground connection. Normally not electrically isolated, it typically needs to be connected to a ground or power plane, depending on the device.|
|Exposed Paddle||See Exposed Pad|
|Extended Superframe||See ESF|