特性
- Fully differential inputs, outputs, and feedback
- 350MHz -3dB bandwidth
- 1200V/µs slew rate
- -75dB distortion at 5MHz
- Single 5V to 12V operation
- 50mA minimum output current
- Low power - 36mA total typical supply current
- Pb-free available (RoHS compliant)
EL4543 Functional Diagram
描述
The EL4543 is a high bandwidth triple differential amplifier with integrated encoding of video sync signals. The inputs are suitable for handling High-Speed video or other communications signals in either single-ended or differential form, and the common-mode input range extends all the way to the negative rail enabling ground-referenced signaling in single supply applications. The high bandwidth enables differential signaling onto standard twisted-pair or coax with very low harmonic distortion, while internal feedback ensures balanced gain and phase at the outputs reducing radiated EMI and harmonics. Embedded logic encodes standard video horizontal and vertical sync signals onto the common mode of the twisted pair(s), transmitting this additional information without the requirement for additional buffers or transmission lines. The EL4543 enables significant system cost savings when compared with discrete line driver alternatives. The EL4543 is available in both a 24 Ld QSOP package and a 20 Ld QFN package and is specified for operation over the -40°C to +85°C temperature range.
产品参数
| 属性 | 值 |
|---|---|
| Channels (#) | 3 |
| Temp. Range (°C) | -40 to +85°C |
| Bandwidth (MHz) | 350 |
| Gain Min | 2 |
| Offset Voltage (Max) (mV) | 10 |
| IBIAS (nA) | 15000 |
| IOUT (A) | 0.06 |
| CMRR (dB) | 80 |
| PSRR (db) | 80 |
| Rail-to-Rail Input | No |
| Rail-to-Rail Output | No |
| IS per Amp (mA) | 14.5 |
| Noise VN (nV/√Hz) | 27 |
| Single Supply Voltage Range (V) | 5 - 12 |
| Slew Rate (V/µs) | 1200 |
| VS (Min) (V) | 5 |
| VS (Max) (V) | 12 |
| Diff Gain (%) | 0.01 |
| Diff Phase (°) | 0.01 |
| Enable | Yes |
| Qualification Level | Standard |
封装选项
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| QSOP | 8.6 x 3.9 x 1.55 | 24 | 0.6 |
应用
- Twisted-pair drivers
- Differential line drivers
- VGA over twisted-pair
- Transmission of analog signals in a noisy environment
| Part Number | Status | Samples | Stock | RoHS | Package | Budgetary Price (USD) | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pitch (mm) | Pkg. Dimensions (mm) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EL4543IUZ | Active | Available | In Stock | RoHS:EN | QSOP | 1ku | $9.7 | 24# | Tube | 2 | 0.6mm | 8.6 x 3.9 x 1.55 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C | MALAYSIA | NETHERLANDS |
| EL4543IUZ-T7 | Active | Available | In Stock | RoHS:EN | QSOP | 1ku | $9.7 | 24# | Reel | 2 | 0.6mm | 8.6 x 3.9 x 1.55 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C | MALAYSIA | NETHERLANDS |
| EL4543ILZ | Obsolete | N/A | Out of Stock | RoHS:EN | QFN | 20# | Tube | 3 | 0.5mm | 4.0 x 4.0 x 0.90 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C | |||
| EL4543ILZ-T13 | Obsolete | N/A | Out of Stock | RoHS:EN | QFN | 20# | Reel | 3 | 0.5mm | 4.0 x 4.0 x 0.90 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C | |||
| EL4543ILZ-T7 | Obsolete | N/A | Out of Stock | RoHS:EN | QFN | 20# | Reel | 3 | 0.5mm | 4.0 x 4.0 x 0.90 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C | |||
| EL4543IUZ-T13 | Obsolete | N/A | Out of Stock | RoHS:EN | QSOP | 24# | Reel | 2 | 0.6mm | 8.6 x 3.9 x 1.55 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C |
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- 应用说明英语PDF 263 KB r13an0003eu0100-biasing-op-amps 2019年12月06日AI 生成的摘要: Proper biasing of operational amplifiers is essential to avoid malfunction in AC-coupled circuits. A missing DC bias path causes long stabilization times and potential failures. Adding input resistors to ground provides a DC path for bias currents, minimizing offset errors. For single-supply AC-coupled amplifiers, biasing uses a reference voltage, ideally from a high-PSRR voltage reference or buffered voltage divider, to maintain signal symmetry and reduce noise. Understanding frequency responses of input and feedback components is crucial for setting bandwidth and gain characteristics.
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- 应用说明英语PDF 957 KB an1484 2007年11月29日AI 生成的摘要: The document explains extending KVM video range up to 1,500 feet using peaking circuits to compensate for Cat 5 cable losses. It details low-frequency and high-frequency gain adjustments, input impedance matching, sync extraction with offset adjustment, and limiting high-frequency boost to prevent oscillations. A selectable peaking network optimizes video signal quality for different cable lengths (150ft, 300ft, 450ft). The design includes RGB+HVsync extension using digital encoding and offset scaling for sync signals.
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