FN7358.7 August 10, 2010 Applications Information Product Description The EL5108 and EL5308 are fixed gain amplifiers that offer a" />
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� EL5108IW-T7
寤犲晢锛� Intersil
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 11/12闋�(y猫)
鏂囦欢澶у皬锛� 0K
鎻忚堪锛� IC OP AMP HS VF 450MHZ SOT23-6
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 3,000
鏀惧ぇ鍣ㄩ鍨嬶細 閫氱敤
闆昏矾鏁�(sh霉)锛� 1
杞�(zhu菐n)鎻涢€熺巼锛� 4500 V/µs
-3db甯跺锛� 450MHz
闆绘祦 - 杓稿叆鍋忓锛� 2µA
闆诲 - 杓稿叆鍋忕Щ锛� 3000µV
闆绘祦 - 闆绘簮锛� 3.7mA
闆绘祦 - 杓稿嚭 / 閫氶亾锛� 135mA
闆诲 - 闆绘簮锛屽柈璺�/闆欒矾(±)锛� 5 V ~ 12 V锛�±2.5 V ~ 6 V
宸ヤ綔婧害锛� -40°C ~ 85°C
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
灏佽/澶栨锛� SOT-23-6
渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 SOT-23-6
鍖呰锛� 甯跺嵎 (TR)
鍏跺畠鍚嶇ū锛� EL5108IW-T7TR
8
FN7358.7
August 10, 2010
Applications Information
Product Description
The EL5108 and EL5308 are fixed gain amplifiers that offer
a wide -3dB bandwidth of 450MHz and a low supply current
of 3.5mA per amplifier. They work with supply voltages
ranging from a single 5V to 10V and they are also capable of
swinging to within 1.2V of either supply on the output. These
combinations of high bandwidth, low power, and high slew
rate make the EL5108 and EL5308 the ideal choice for many
low-power/high-bandwidth applications such as portable,
handheld, or battery-powered equipment.
For varying bandwidth and higher gains, consider the
EL5166 with 1GHz on a 9mA supply current or the EL5164
with 600MHz on a 3.5mA supply current. Versions include
single, dual, and triple amp packages with 6 Ld SOT-23,
16 Ld QSOP, and 8 Ld SOIC or 16 Ld SOIC outlines.
Power Supply Bypassing and Printed Circuit
Board Layout
As with any high frequency device, good printed circuit
board layout is necessary for optimum performance. Low
impedance ground plane construction is essential. Surface
mount components are recommended, but if leaded
components are used, lead lengths should be as short as
possible. The power supply pins must be well bypassed to
reduce the risk of oscillation. The combination of a 4.7F
tantalum capacitor in parallel with a 0.01F capacitor has
been shown to work well when placed at each supply pin.
Disable/Power-Down
The EL5108 and EL5308 amplifiers can be disabled and
placing their outputs in a high impedance state. When
disabled, the amplifier supply current is reduced to <25A.
The EL5108 and EL5308 are disabled when the CE pin is
pulled up to within 1V of the positive supply. Similarly, the
amplifier is enabled by floating or pulling its CE pin to at least
3V below the positive supply. For 卤5V supply, this means
that the amplifier will be enabled when CE is 2V or less, and
disabled when CE is above 4V. Although the logic levels are
not standard TTL, this choice of logic voltages allow the
EL5108 and EL5308 to be enabled by tying CE to ground,
even in 5V single supply applications. The CE pins can be
driven from CMOS outputs.
Gain Setting
The EL5108 and EL5308 are built with internal feedback and
gain resistors. The internal feedback resistors have equal
value; as a result, the amplifier can be configured into gain of
+1, -1, and +2 without any external resistors. Figure 21
shows the amplifier in gain of +2 configuration. The gain
error is 卤2% maximum. Figure 22 shows the amplifier in
gain-of-1 configuration. For gain of +1, IN+ and IN- should
be connected together as shown in Figure 23. This
configuration avoids the effects of any parasitic capacitance
on the IN- pin. Since the internal feedback and gain resistors
change with temperature and process, external resistor
should not be used to adjust the gain settings.
FIGURE 19. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
FIGURE 20. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
Typical Performance Curves (Continued)
1
0.9
0.8
0.6
0.4
0.1
0
25
50
75
100
150
AMBIENT TEMPERATURE (掳C)
POWE
R
DI
SSI
PATI
ON
(W)
125
85
JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
0.2
0.7
0.3
0.5
909mW
625mW
633mW
391mW
SO16 (0.150鈥�)
JA=110掳C/W
SO8
JA=160掳C/W
QSOP16
JA=158掳C/W
SOT23-6
JA=256掳C/W
AMBIENT TEMPERATURE (掳C)
0
0.4
1.4
1.2
1
0.8
0.6
0.2
0
25
50
75
100
150
P
O
WER
DIS
S
IPATION
(W
)
125
85
JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
0.1
1.250W
QSOP16
JA=112掳C/W
909mW
893mW
435mW
SO8
JA=110掳C/W
SOT23-6
JA=230掳C/W
SO16 (0.150鈥�)
JA=80掳C/W
FIGURE 21. AV = +2
-
+
325
325
IN-
IN+
FIGURE 22. AV = -1
-
+
325
325
IN-
GND
EL5108, EL5308
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
2040.0610 FUSE 315MA 250VAC RADIAL SLOW
TS-709-15 CIRCUIT BRKR THERMAL 15A 1POLE
TS-709-10 CIRCUIT BRKR THERMAL 10A 1POLE
TS-709-15HK CIRCUIT BRKR THERMAL 15A 1POLE
956230-2000-AR-PR CONN SOCKET 30POS 2MM VERT SMD
鐩搁棞(gu膩n)浠g悊鍟�/鎶€琛�(sh霉)鍙冩暩(sh霉)
鍙冩暩(sh霉)鎻忚堪
EL5108IW-T7A 鍔熻兘鎻忚堪:鐗规畩鐢ㄩ€旀斁澶у櫒 450 MHz w/ Enable RoHS:鍚� 鍒堕€犲晢:Texas Instruments 閫氶亾鏁�(sh霉)閲�:Single 鍏辨ā鎶戝埗姣旓紙鏈€灏忓€硷級: 杓稿叆瑁�(b菙)鍎熼浕澹�: 宸ヤ綔闆绘簮闆诲:3 V to 5.5 V 闆绘簮闆绘祦:5 mA 鏈€澶у姛鐜囪€楁暎: 鏈€澶у伐浣滄韩搴�:+ 70 C 鏈€灏忓伐浣滄韩搴�:- 40 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:QFN-20 灏佽:Reel
EL5108IWZ-T7 鍔熻兘鎻忚堪:楂橀€熼亱(y霉n)绠楁斁澶у櫒 EL5108IWZ SINGLE 520 MHZ FGAW ENABLE RoHS:鍚� 鍒堕€犲晢:Texas Instruments 閫氶亾鏁�(sh霉)閲�:1 闆诲澧炵泭 dB:116 dB 杓稿叆瑁�(b菙)鍎熼浕澹�:0.5 mV 杞�(zhu菐n)鎻涢€熷害:55 V/us 宸ヤ綔闆绘簮闆诲:36 V 闆绘簮闆绘祦:7.5 mA 鏈€澶у伐浣滄韩搴�:+ 85 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:SOIC-8 灏佽:Tube
EL5108IWZ-T7A 鍔熻兘鎻忚堪:楂橀€熼亱(y霉n)绠楁斁澶у櫒 EL5108IWZ SINGLE 520 MHZ FGAW ENABLE RoHS:鍚� 鍒堕€犲晢:Texas Instruments 閫氶亾鏁�(sh霉)閲�:1 闆诲澧炵泭 dB:116 dB 杓稿叆瑁�(b菙)鍎熼浕澹�:0.5 mV 杞�(zhu菐n)鎻涢€熷害:55 V/us 宸ヤ綔闆绘簮闆诲:36 V 闆绘簮闆绘祦:7.5 mA 鏈€澶у伐浣滄韩搴�:+ 85 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:SOIC-8 灏佽:Tube
EL5110 鍒堕€犲晢:鏈煡寤犲 鍒堕€犲晢鍏ㄧū:鏈煡寤犲 鍔熻兘鎻忚堪:Logic IC
EL5111 鍒堕€犲晢:INTERSIL 鍒堕€犲晢鍏ㄧū:Intersil Corporation 鍔熻兘鎻忚堪:60MHz Rail-to-Rail Input-Output Op Amps