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參數(shù)資料
| 型號： | ISL59440IAZ |
| 廠商： | Intersil |
| 文件頁數(shù)： | 12/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP MULTIPLEX 400MHZ 16-QSOP |
| 標(biāo)準(zhǔn)包裝： | 97 |
| 應(yīng)用： | 4:1 多路復(fù)用器-放大器 |
| 電路數(shù)： | 1 |
| -3db帶寬： | 400MHz |
| 轉(zhuǎn)換速率： | 1470 V/µs |
| 電流 - 電源： | 14.5mA |
| 電流 - 輸出 / 通道： | 130mA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-QSOP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1235 (CN2011-ZH PDF) |
9
FN6162.2
October 10, 2007
Application Information
General
The ISL59440 is a 4:1 mux that is ideal as a matrix element
in high performance switchers and routers. The ISL59440 is
optimized to drive 5pF in parallel with a 500
Ω load. The
capacitance can be split between the PCB capacitance and
an external load capacitance. Its low input capacitance and
high input resistance provides excellent 50
Ω or 75Ω
terminations.
Parasitic Effects on Frequency Performance
CAPACITANCE AT THE INVERTING INPUT
The AC performance of current-feedback amplifiers in the
non-inverting gain configuration is strongly effected by stray
capacitance at the inverting input. Stray capacitance from
the inverting input pin to the output (CF), and to ground (CG),
increase gain peaking and bandwidth. Large values of either
capacitance can cause oscillation. The ISL59440 has been
optimized for a 0.4pF to 0.7pF capacitance (CG).
Capacitance (CF) to the output should be minimized. To
achieve optimum performance the feedback network
resistor(s) must be placed as close to the device as possible.
Trace lengths greater than 1/4 inch combined with resistor
pad capacitance can result in inverting input to ground
capacitance approaching 1pF. Inverting input and output
traces should not run parallel to each other. Small size
surface mount resistors (604 or smaller) are recommended.
CAPACITANCE AT THE OUTPUT
The output amplifier is optimized for capacitance to ground
(CL) directly on the output pin. Increased capacitance
causes higher peaking with an increase in bandwidth. The
optimum range for most applications is ~1.0pF to ~6pF. The
optimum value can be achieved through a combination of
PC board trace capacitance (CT) and an external capacitor
(COUT). A good method to maintain control over the output
pin capacitance is to minimize the trace length (CT) to the
next component, and include a discrete surface mount
capacitor (COUT) directly at the output pin.
FEEDBACK RESISTOR VALUES
The AC performance of the output amplifier is optimized with
the feedback resistor network (RF, RG) values
recommended in the application circuits. The amplifier
bandwidth and gain peaking are directly effected by the
value(s) of the feedback resistor(s) in unity gain and gain >1
configurations. Transient response performance can be
tailored simply by changing these resistor values. Generally,
lower values of RF and RG increase bandwidth and gain
peaking. This has the effect of decreasing rise/fall times and
increasing overshoot.
Application Circuits
FIGURE 25A. GAIN OF 1 APPLICATION CIRCUIT
FIGURE 25B. GAIN OF 2 APPLICATION CIRCUIT
COUT
VIN
50
Ω
332
Ω
RL = 500Ω
Cg
-
+
0.4pF < CG < 0.7pF
0.6pF
VOUT
PC BOARD
CAPACITANCE
0pF
*CL = CT + COUT
CT
1.6pF
*CL: TOTAL LOAD CAPACITANCE
COUT: OUTPUT CAPACITANCE
CT: TRACE CAPACITANCE
CF
VIN
50
Ω
511
Ω
RL = 500Ω
CG
-
+
511
Ω
0.4pF < CG < 0.7pF
0.6pF
VOUT
PC BOARD
CAPACITANCE
3.9pF
COUT
1.6pF
CT
*CL = CT + COUT
ISL59440
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL59440IAZ-T13 | 制造商:Intersil Corporation 功能描述:ANLG MUX/AMP SGL 4:1 5.5V 16QSOP - Tape and Reel 制造商:Intersil 功能描述:ISL8036CRSH EVALRD 1 24LD RHS COMP |
| ISL59440IAZ-T7 | 功能描述:IC AMP 400MHZ MULTIPLEX 16-QSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| ISL59441 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:900MHz Multiplexing Amplifier |
| ISL59441IA | 功能描述:IC AMP MULTIPLEX 900MHZ 16-QSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 應(yīng)用:TFT-LCD 面板：VCOM 驅(qū)動器 輸出類型:滿擺幅 電路數(shù):1 -3db帶寬:35MHz 轉(zhuǎn)換速率:40 V/µs 電流 - 電源:3.7mA 電流 - 輸出 / 通道:1.3A 電壓 - 電源，單路/雙路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤 供應(yīng)商設(shè)備封裝:8-uMax-EP 包裝:管件 |
| ISL59441IA-T13 | 功能描述:IC AMP MULTIPLEX 900MHZ 16-QSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 應(yīng)用:TFT-LCD 面板：VCOM 驅(qū)動器 輸出類型:滿擺幅 電路數(shù):1 -3db帶寬:35MHz 轉(zhuǎn)換速率:40 V/µs 電流 - 電源:3.7mA 電流 - 輸出 / 通道:1.3A 電壓 - 電源，單路/雙路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤 供應(yīng)商設(shè)備封裝:8-uMax-EP 包裝:管件 |
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