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鍙冩暩(sh霉)璩囨枡
| 鍨嬭櫉(h脿o)锛� | EL5244CSZ |
| 寤犲晢锛� | Intersil |
| 鏂囦欢闋�(y猫)鏁�(sh霉)锛� | 10/24闋�(y猫) |
| 鏂囦欢澶�?銆�?/td> | 0K |
| 鎻忚堪锛� | IC AMP 100MHZ R-R 8-SOIC |
| 妯�(bi膩o)婧�(zh菙n)鍖呰锛� | 97 |
| 鏀惧ぇ鍣ㄩ鍨嬶細 | 闆诲鍙嶉 |
| 闆昏矾鏁�(sh霉)锛� | 2 |
| 杓稿嚭椤炲瀷锛� | 婊挎摵骞� |
| 杞�(zhu菐n)鎻涢€熺巼锛� | 200 V/µs |
| 澧炵泭甯跺绌嶏細 | 60MHz |
| -3db甯跺锛� | 100MHz |
| 闆绘祦 - 杓稿叆鍋忓锛� | 2nA |
| 闆诲 - 杓稿叆鍋忕Щ锛� | 15000µV |
| 闆绘祦 - 闆绘簮锛� | 7mA |
| 闆绘祦 - 杓稿嚭 / 閫氶亾锛� | 120mA |
| 闆诲 - 闆绘簮锛屽柈璺�/闆欒矾(±)锛� | 4.75 V ~ 5.25 V锛�±2.38 V ~ 2.63 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� | 8-SOIC锛�0.154"锛�3.90mm 瀵級 |
| 渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 | 8-SOIC |
| 鍖呰锛� | 绠′欢 |
绗�1闋�(y猫)绗�2闋�(y猫)绗�3闋�(y猫)绗�4闋�(y猫)绗�5闋�(y猫)绗�6闋�(y猫)绗�7闋�(y猫)绗�8闋�(y猫)绗�9闋�(y猫)鐣�(d膩ng)鍓嶇10闋�(y猫)绗�11闋�(y猫)绗�12闋�(y猫)绗�13闋�(y猫)绗�14闋�(y猫)绗�15闋�(y猫)绗�16闋�(y猫)绗�17闋�(y猫)绗�18闋�(y猫)绗�19闋�(y猫)绗�20闋�(y猫)绗�21闋�(y猫)绗�22闋�(y猫)绗�23闋�(y猫)绗�24闋�(y猫)
18
FN7177.2
March 31, 2011
where:
TJMAX = Maximum junction temperature
TAMAX = Maximum ambient temperature
胃JA = Thermal resistance of the package
PDMAX = Maximum power dissipation in the package
The maximum power dissipation actually produced by an IC
is the total quiescent supply current times the total power
supply voltage, plus the power in the IC due to the load, or
as expressed in Equation 2:
where:
N = Number of amplifiers in the package
VS = Total supply voltage
ISMAX = Maximum supply current per amplifier
VOUT = Maximum output voltage of the application
RL = Load resistance tied to ground
If we set the two PDMAX equations equal to each other, we
Assuming worst case conditions of TA = +85掳C, VOUT =VS/2V,
VS = 5.5V, and ISMAX = 8.8mA per amplifier, following is a table
of all packages and the minimum RL allowed.
EL5144 Series Comparator Application
The EL5144 series amplifier can be used as a very fast,
single supply comparator. Most op amps used as a
comparator allow only slow speed operation because of
output saturation issues. The EL5144 series amplifier
doesn鈥檛 suffer from output saturation issues. Figure 50
shows the amplifier implemented as a comparator. Figure 51
is a graph of propagation delay vs overdrive as a square
wave is presented at the input of the comparator.
Multiplexing with the EL5144 Series Amplifier
Besides normal power-down usage, the CE pin on the
EL5146 and EL5246 series amplifiers also allow for
multiplexing applications. Figure 52 shows an EL5246 with
its outputs tied together, driving a back terminated 75
惟 video
load. A 3VP-P 10MHz sine wave is applied at Amp A input,
shows the SELECT signal that is applied, and the resulting
output waveform at VOUT. Observe the break-before-make
operation of the multiplexing. Amp A is on and VIN1 is being
passed through to the output of the amplifier. Then Amp A
turns off in about 10ns. The output decays to ground with an
RLCL time constants. 500ns later, Amp B turns on and VIN2
is passed through to the output. This break-before-make
operation ensures that more than one amplifier isn鈥檛 trying to
drive the bus at the same time. Notice the outputs are tied
directly together. Isolation resistors at each output are not
necessary.
PART
PACKAGE
MINIMUM RL
EL5144CW
SOT23-5
37
EL5146CS
SOIC-8
21
EL5146CN
PDIP-8
14
EL5244CS
SOIC-8
48
EL5244CN
PDIP-8
30
EL5244CY
MSOP-8
69
EL5246CY
MSOP-10
69
EL5246CS
SOIC-14
34
EL5246CN
PDIP-14
23
EL5444CU
QSOP-16
139
EL5444CS
SOIC-14
85
EL5444CN
PDIP-14
51
PDMAX
NVS ISMAX VS
(
- VOUT)
VOUT
RL
----------------
脳
+
脳
=
(EQ. 2)
RL
VOUT VS - VOUT
()
脳
TJMAX - TAMAX
N
胃
JA
脳
---------------------------------------------
- VS ISMAX
脳
()
----------------------------------------------------------------------------------------------
=
(EQ. 3)
1
2
3
4
8
7
6
5
+
鈥�
-
+
EL5146
+5V
VIN
+2.5V
VOUT
RL
0.1F
FIGURE 50. EL5146 AMPLIFIER IMPLEMENTED AS A
COMPARATOR
0.01
0.1
1.0
10
100
1000
PROP
AGA
T
ION
D
E
LA
Y
(ns)
OVERDRIVE (V)
POSITIVE GOING
SIGNAL
NEGATIVE GOING
SIGNAL
FIGURE 51. PROPAGATION DELAY vs OVERDRIVE FOR
AMPLIFIER USED AS A COMPARATOR
EL5144, EL5146, EL5244, EL5246, EL5444
鐩搁棞(gu膩n)PDF璩囨枡 |
PDF鎻忚堪 |
|---|---|
| EL5244CS-T7 | IC AMP 100MHZ R-R 8-SOIC |
| SFM210-LPSE-S15-SD-BK | CONN HEADER FMAL 15PS 1MM SMD AU |
| B1201UC4LTP | BATTRAX SLIC DUAL NEG 500A MS013 |
| T11-611-6-415 | CIRCUIT BRKR SP RESET 6A SNAP |
| B1201UC4LRP | BATTRAX SLIC DUAL NEG 500A MS013 |
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 |
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